diff options
Diffstat (limited to 'sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org')
53 files changed, 3539 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/ComponentContextFactory.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/ComponentContextFactory.java new file mode 100644 index 0000000000..ed4b57639c --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/ComponentContextFactory.java @@ -0,0 +1,38 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.context; + +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.osoa.sca.ComponentContext; + +/** + * Interface implemented by the provider of the ComponentContext. + * + * @version $Rev$ $Date$ + */ +public interface ComponentContextFactory { + /** + * Create an instance of ComponentContext + * + * @param component The runtime component + * @param requestContextFactory The factory to create RequestContext + * @return An instance of ComponentContext for the component + */ + ComponentContext createComponentContext(RuntimeComponent component, RequestContextFactory requestContextFactory); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/ContextFactoryExtensionPoint.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/ContextFactoryExtensionPoint.java new file mode 100644 index 0000000000..e92a8f2844 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/ContextFactoryExtensionPoint.java @@ -0,0 +1,50 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.context; + +/** + * An extension point for context factories. + * + * @version $Rev$ $Date$ + */ +public interface ContextFactoryExtensionPoint { + + /** + * Add a context factory extension. + * + * @param factory The factory to add + */ + void addFactory(Object factory); + + /** + * Remove a context factory extension. + * + * @param factory The factory to remove + */ + void removeFactory(Object factory); + + /** + * Get a factory implementing the given interface. + * @param factoryInterface the lookup key (factory interface) + * @return The factory + */ + <T> T getFactory(Class<T> factoryInterface); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/DefaultContextFactoryExtensionPoint.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/DefaultContextFactoryExtensionPoint.java new file mode 100644 index 0000000000..50958b7848 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/DefaultContextFactoryExtensionPoint.java @@ -0,0 +1,67 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.context; + +import java.util.HashMap; + +/** + * Default implementation of a model factory extension point. + * + * @version $Rev$ $Date$ + */ +public class DefaultContextFactoryExtensionPoint implements ContextFactoryExtensionPoint { + + private HashMap<Class<?>, Object> factories = new HashMap<Class<?>, Object>(); + + /** + * Add a model factory extension. + * + * @param factory The factory to add + */ + public void addFactory(Object factory) { + Class[] interfaces = factory.getClass().getInterfaces(); + for (int i = 0; i<interfaces.length; i++) { + factories.put(interfaces[i], factory); + } + } + + /** + * Remove a model factory extension. + * + * @param factory The factory to remove + */ + public void removeFactory(Object factory) { + Class[] interfaces = factory.getClass().getInterfaces(); + for (int i = 0; i<interfaces.length; i++) { + factories.remove(interfaces[i]); + } + } + + /** + * Get a factory implementing the given interface. + * @param factoryInterface The lookup key (factory interface) + * @return The factory + */ + public <T> T getFactory(Class<T> factoryInterface) { + Object factory = factories.get(factoryInterface); + return factoryInterface.cast(factory); + } + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/PropertyValueFactory.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/PropertyValueFactory.java new file mode 100644 index 0000000000..d9cc716f7a --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/PropertyValueFactory.java @@ -0,0 +1,38 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.context; + +import org.apache.tuscany.sca.assembly.ComponentProperty; + +/** + * Interface implemented by the provider of the property values + */ +public interface PropertyValueFactory { + + /** + * This method will create an instance of the value for the specified Property. + * + * @param property The Property from which to retrieve the property value + * @param type The type of the property value being retrieved from the Property + * @param <B> Type type of the property value being looked up + * + * @return the value for the Property + */ + <B> B createPropertyValue(ComponentProperty property, Class<B> type); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/RequestContextFactory.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/RequestContextFactory.java new file mode 100644 index 0000000000..546757c766 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/RequestContextFactory.java @@ -0,0 +1,33 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.context; + +import org.osoa.sca.RequestContext; + +/** + * Interface implemented by the provider of the RequestContext. + * + * @version $Rev$ $Date$ + */ +public interface RequestContextFactory { + /** + * @return An instance of RequestContext for the current invocation + */ + RequestContext createRequestContext(); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/core/DefaultExtensionPointRegistry.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/core/DefaultExtensionPointRegistry.java new file mode 100644 index 0000000000..56c712a65a --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/core/DefaultExtensionPointRegistry.java @@ -0,0 +1,149 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.core; + +import java.io.IOException; +import java.lang.reflect.Constructor; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Modifier; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Map; +import java.util.Set; + +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.extensibility.ServiceDiscovery; + +/** + * Default implementation of a registry to hold all the Tuscany core extension + * points. As the point of contact for all extension artifacts this registry + * allows loaded extensions to find all other parts of the system and register + * themselves appropriately. + * + * @version $Rev$ $Date$ + */ +public class DefaultExtensionPointRegistry implements ExtensionPointRegistry { + private Map<Class<?>, Object> extensionPoints = new HashMap<Class<?>, Object>(); + + /** + * Add an extension point to the registry. This default implementation + * stores extensions against the interfaces that they implement. + * + * @param extensionPoint The instance of the extension point + */ + public void addExtensionPoint(Object extensionPoint) { + Set<Class> interfaces = getAllInterfaces(extensionPoint.getClass()); + for (Class i : interfaces) { + extensionPoints.put(i, extensionPoint); + } + } + + /** + * Get the extension point by the interface that it implements + * + * @param extensionPointType The lookup key (extension point interface) + * @return The instance of the extension point + */ + public <T> T getExtensionPoint(Class<T> extensionPointType) { + Object extensionPoint = extensionPoints.get(extensionPointType); + if (extensionPoint == null) { + + // Dynamically load an extension point class declared under META-INF/services + try { + Class<?> extensionPointClass = + ServiceDiscovery.getInstance().loadFirstServiceClass(extensionPointType); + if (extensionPointClass != null) { + // Construct the extension point + try { + Constructor constructor = extensionPointClass.getConstructor(); + extensionPoint = constructor.newInstance(); + } catch (NoSuchMethodException e) { + try { + Constructor constructor = extensionPointClass.getConstructor(ModelFactoryExtensionPoint.class); + extensionPoint = constructor.newInstance(getExtensionPoint(ModelFactoryExtensionPoint.class)); + } catch (NoSuchMethodException e2) { + try { + Constructor constructor = extensionPointClass.getConstructor(ExtensionPointRegistry.class); + extensionPoint = constructor.newInstance(this); + } catch (NoSuchMethodException e3) { + throw new IllegalArgumentException(e3); + } + } + } + + // Cache the loaded extension point + addExtensionPoint(extensionPoint); + } + } catch (InvocationTargetException e) { + throw new IllegalArgumentException(e); + } catch (IOException e) { + throw new IllegalArgumentException(e); + } catch (ClassNotFoundException e) { + throw new IllegalArgumentException(e); + } catch (InstantiationException e) { + throw new IllegalArgumentException(e); + } catch (IllegalAccessException e) { + throw new IllegalArgumentException(e); + } + } + return extensionPointType.cast(extensionPoint); + } + + /** + * Remove an extension point based on the interface that it implements + * + * @param extensionPoint The extension point to remove + */ + public void removeExtensionPoint(Object extensionPoint) { + Set<Class> interfaces = getAllInterfaces(extensionPoint.getClass()); + for (Class i : interfaces) { + extensionPoints.remove(i); + } + } + + /** + * Returns the set of interfaces implemented by the given class and its + * ancestors or a blank set if none + */ + private static Set<Class> getAllInterfaces(Class clazz) { + Set<Class> implemented = new HashSet<Class>(); + getAllInterfaces(clazz, implemented); + return implemented; + } + + private static void getAllInterfaces(Class clazz, Set<Class> implemented) { + Class[] interfaces = clazz.getInterfaces(); + for (Class interfaze : interfaces) { +// String name = interfaze.getName(); +// if (name.startsWith("java.") || name.startsWith("javax.")) { +// continue; +// } + if (Modifier.isPublic(interfaze.getModifiers())) { + implemented.add(interfaze); + } + } + Class<?> superClass = clazz.getSuperclass(); + // Object has no superclass so check for null + if (superClass != null && !superClass.equals(Object.class)) { + getAllInterfaces(superClass, implemented); + } + } + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/core/ExtensionPointRegistry.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/core/ExtensionPointRegistry.java new file mode 100644 index 0000000000..9609487080 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/core/ExtensionPointRegistry.java @@ -0,0 +1,50 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.core; + + +/** + * The registry for the Tuscany core extension points. As the point of contact + * for all extension artifacts this registry allows loaded extensions to find + * all other parts of the system and register themselves appropriately. + * + * @version $Rev$ $Date$ + */ +public interface ExtensionPointRegistry { + + /** + * Add an extension point to the registry + * @param extensionPoint The instance of the extension point + */ + void addExtensionPoint(Object extensionPoint); + + /** + * Get the extension point by the interface + * @param extensionPointType The lookup key (extension point interface) + * @return The instance of the extension point + */ + <T> T getExtensionPoint(Class<T> extensionPointType); + + /** + * Remove an extension point + * @param extensionPoint The extension point to remove + */ + void removeExtensionPoint(Object extensionPoint); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/core/ModuleActivator.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/core/ModuleActivator.java new file mode 100644 index 0000000000..7a286069d5 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/core/ModuleActivator.java @@ -0,0 +1,60 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.core; + + +/** + * ModuleActivator represents a module that plugs into the Tuscany system. Each + * module should provide an implementation of this interface and register the + * ModuleActivator implementation class by defining a file named + * + * "META-INF/services/org.apache.tuscany.core.ModuleActivator" + * + * The content of the file is the class name of the ModuleActivator implementation. + * The implementation class must have a no-arg constructor. The same instance + * will be used to invoke all the methods during different phases of the module + * activation. Note that the start and stop methods defined by this interface + * take a reference to the Tuscany SCA runtime ExtensionPointRegistry. This + * gives the ModuleActivator the oppotunity to add extension points to the + * registry as it is requested to start up and remove them when it is requested + * to shut down. + * + * @version $Rev$ $Date$ + */ +public interface ModuleActivator { + + /** + * This method is invoked when the module is started by the Tuscany system. + * It can be used by this module to registr extensions against extension + * points. + * + * @param registry The extension point registry + */ + void start(ExtensionPointRegistry registry); + + /** + * This method is invoked when the module is stopped by the Tuscany system. + * It can be used by this module to unregister extensions against the + * extension points. + * + * @param registry The extension point registry + */ + void stop(ExtensionPointRegistry registry); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/Event.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/Event.java new file mode 100644 index 0000000000..6a0c44a404 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/Event.java @@ -0,0 +1,33 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.event; + +/** + * The base interface for events that are propagated in the runtime + * + * @version $$Rev$$ $$Date$$ + */ +public interface Event { + + /** + * Returns the source of the event + */ + Object getSource(); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/EventFilter.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/EventFilter.java new file mode 100644 index 0000000000..c116be921c --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/EventFilter.java @@ -0,0 +1,35 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.event; + +/** + * Evaluates whether a {@link RuntimeEventListener} is applicable to a given runtime event + * + * @version $$Rev$$ $$Date$$ + */ +public interface EventFilter { + + /** + * Performs the actual evaluation on an event + * @param event Returns true if the event matches implemented criteria + * @return Match result + */ + boolean match(Event event); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/EventPublisher.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/EventPublisher.java new file mode 100644 index 0000000000..b0debc36c4 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/EventPublisher.java @@ -0,0 +1,55 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.event; + +/** + * Publishes events in the runtime by accepting {@link Event} objects and + * forwarding them to all registered {@link RuntimeEventListener} objects. + * + * @version $$Rev$$ $$Date$$ + */ +public interface EventPublisher { + + /** + * Publish an event to all regisitered listeners + * @param object The event to publich + */ + void publish(Event object); + + /** + * Registers a listener to receive notifications for the context + * @param listener The listener to add + */ + void addListener(RuntimeEventListener listener); + + /** + * Registers a listener to receive notifications for the context + * @param filter The filter that will be applied before the lister is called + * @param listener The lister to add + */ + void addListener(EventFilter filter, RuntimeEventListener listener); + + + /** + * Removes a previously registered listener + * @param listener The listener to remove + */ + void removeListener(RuntimeEventListener listener); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/RuntimeEventListener.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/RuntimeEventListener.java new file mode 100644 index 0000000000..b34dceee62 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/RuntimeEventListener.java @@ -0,0 +1,35 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.event; + +import java.util.EventListener; + +/** + * Listeners observe events fired in the SCA runtime. + * + * @version $Rev$ $Date$ + */ +public interface RuntimeEventListener extends EventListener { + + /** + * Accepts and event and acts on it + * @param event The event to act on + */ + void onEvent(Event event); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/TrueFilter.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/TrueFilter.java new file mode 100644 index 0000000000..ca0f4889a5 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/event/TrueFilter.java @@ -0,0 +1,37 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.event; + +/** + * An event filter that always returns a true condition + * + * @version $$Rev$$ $$Date$$ + */ +public class TrueFilter implements EventFilter { + + /** + * Performs the actual evaluation on an event. Always returns true + * in this case + * @param event The incoming event which is ignored + * @return true + */ + public boolean match(Event event) { + return true; + } +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/DataExchangeSemantics.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/DataExchangeSemantics.java new file mode 100644 index 0000000000..957a15ce8a --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/DataExchangeSemantics.java @@ -0,0 +1,34 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.invocation; + +/** + * An invoker or interceptor can optionally implement this interface to indicate if they can + * enforce the pass-by-value semantics for an operation on remotable interfaces. + * + * @version $Rev$ $Date$ + */ +public interface DataExchangeSemantics { + /** + * Indicate if the data can be passed in by reference as they won't be mutated. + * @return true if pass-by-reference is allowed + */ + boolean allowsPassByReference(); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Interceptor.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Interceptor.java new file mode 100644 index 0000000000..a5f221fc11 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Interceptor.java @@ -0,0 +1,40 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.invocation; + +/** + * Synchronous mediation associated with a client- or target- side wire. + * + * @version $Rev$ $Date$ + */ +public interface Interceptor extends Invoker { + + /** + * Sets the next invoker + * @param next The next invoker + */ + void setNext(Invoker next); + + /** + * Returns the next invoker or null + * @return The next Invoker + */ + Invoker getNext(); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/InvocationChain.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/InvocationChain.java new file mode 100644 index 0000000000..247b5969c2 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/InvocationChain.java @@ -0,0 +1,112 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.invocation; + +import org.apache.tuscany.sca.interfacedef.Operation; + +/** + * A wire consists of 1..n invocation chains associated with the operations of its source service contract. + * <p/> + * Invocation chains may contain </code>Interceptors</code> that process invocations. + * <p/> + * A <code>Message</code> is used to pass data associated with an invocation through the chain. + * + * @version $Rev$ $Date$ + */ +public interface InvocationChain { + /** + * Returns the target operation for this invocation chain. + * + * @return The target operation for this invocation chain + */ + Operation getTargetOperation(); + + /** + * Updates the target operation for this invocation chain. + * + * @param operation The new target operation for this invocation chain + */ + void setTargetOperation(Operation operation); + + /** + * Returns the source operation for this invocation chain. + * + * @return The source operation for this invocation chain + */ + Operation getSourceOperation(); + + /** + * Adds an interceptor to the chain. For reference side, it will be added to + * Phase.REFERENCE. For service side, it will be added to Phase.SERVICE + * + * @param interceptor The interceptor to add + */ + void addInterceptor(Interceptor interceptor); + + /** + * Adds an invoker to the chain + * + * @param invoker The invoker to add + */ + void addInvoker(Invoker invoker); + + /** + * Returns the first invoker in the chain. + * + * @return The first invoker in the chain + */ + Invoker getHeadInvoker(); + + /** + * @deprecated This method is not used + * Returns the last invoker in the chain. + * + * @return The last invoker in the chain + */ + @Deprecated + Invoker getTailInvoker(); + + /** + * @deprecated Please use <code>void addInterceptor(String phase, Interceptor interceptor);</code> + * Adds an interceptor at the given position in the interceptor stack + * + * @param index The position in the interceptor stack to add the interceptor + * @param interceptor The interceptor to add + */ + @Deprecated + void addInterceptor(int index, Interceptor interceptor); + + /** + * Add an interceptor to the given phase + * @param phase + * @param interceptor + */ + void addInterceptor(String phase, Interceptor interceptor); + + /** + * Indicate if the data can be passed in by reference as they won't be mutated. + * @return true if pass-by-reference is allowed + */ + boolean allowsPassByReference(); + /** + * Force the invocation to allow pass-by-reference + * @param allowsPBR + */ + void setAllowsPassByReference(boolean allowsPBR); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Invoker.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Invoker.java new file mode 100644 index 0000000000..2748bbed9a --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Invoker.java @@ -0,0 +1,36 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.invocation; + +/** + * Synchronous mediation associated with a client- or target- side wire. + * + * @version $Rev$ $Date$ + */ +public interface Invoker { + + /** + * Process a synchronous wire + * + * @param msg The request Message for the wire + * @return The response Message from the wire + */ + Message invoke(Message msg); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Message.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Message.java new file mode 100644 index 0000000000..6e23568088 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Message.java @@ -0,0 +1,117 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.invocation; + +import java.util.Map; + +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.runtime.EndpointReference; + +/** + * Represents a request, response, or exception flowing through a wire + * + * @version $Rev $Date + */ +public interface Message { + public static final String QOS_CTX_SECURITY_PRINCIPAL = "PRINCIPAL"; + + /** + * Returns the body of the message, which will be the payload or parameters associated with the wire + * @return The body of the message + */ + <T> T getBody(); + + /** + * Sets the body of the message. + * @param body The body of the message + */ + <T> void setBody(T body); + + /** + * Get the end point reference of the source reference + * @return The end point reference of the reference originating the message + */ + EndpointReference getFrom(); + + /** + * Set the end point reference of the reference originating the message + * @param from The end point reference of the reference originating the message + */ + void setFrom(EndpointReference from); + + /** + * Get the end point reference of target service + * @return The end point reference of the service that the message targets + */ + EndpointReference getTo(); + + /** + * Set the end point reference of target service + * @param to The end point reference of the service that the message targets + */ + void setTo(EndpointReference to); + + /** + * Returns the id of the message + * @return The message Id + */ + Object getMessageID(); + + /** + * Sets the id of the message + * @param messageId The message ID + */ + void setMessageID(Object messageId); + + /** + * Determines if the message represents a fault/exception + * + * @return true If the message body is a fault object, false if the body is a normal payload + */ + boolean isFault(); + + /** + * Set the message body with a fault object. After this method is called, isFault() returns true. + * + * @param fault The fault object represents an exception + */ + <T> void setFaultBody(T fault); + + /** + * Returns the operation that created the message. + * + * @return The operation that created the message + */ + Operation getOperation(); + + /** + * Sets the operation that created the message. + * + * @param op The operation that created the message + */ + void setOperation(Operation op); + + /** + * Returns a map of objects that represents the QoS context that wraps this message such as + * invoking authenticated principal and so on. + * + * @return + */ + Map<String, Object> getQoSContext(); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/MessageFactory.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/MessageFactory.java new file mode 100644 index 0000000000..c2a9c488b8 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/MessageFactory.java @@ -0,0 +1,36 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.invocation; + + +/** + * A factory for messages + * + * @version $Rev $Date + */ +public interface MessageFactory { + + /** + * Creates a new message. + * + * @return The new message + */ + Message createMessage(); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Phase.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Phase.java new file mode 100644 index 0000000000..e1b84e4f9f --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/Phase.java @@ -0,0 +1,59 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.invocation; + +/** + * Tuscany built-in phases for the invocation chain + * + * @version $Rev$ $Date$ + */ +public interface Phase { + // The fisrt phase for outgoing invocations via a reference + String REFERENCE = "component.reference"; + + // data transformation and validation + String REFERENCE_INTERFACE = "reference.interface"; + + // reference policy handling + String REFERENCE_POLICY = "reference.policy"; + + // reference binding invoker + String REFERENCE_BINDING = "reference.binding"; + + // The first phase for incoming invocations via a service + String SERVICE_BINDING = "service.binding"; + + // service policy handling + String SERVICE_POLICY = "service.policy"; + + // data validation and transformation + String SERVICE_INTERFACE = "service.interface"; + + // TODO: not sure if we need to have this face + String SERVICE = "component.service"; + + // implementation policy handling + String IMPLEMENTATION_POLICY = "implementation.policy"; + + // implementation invoker + String IMPLEMENTATION = "component.implementation"; + + // String getName(); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/management/ManagementService.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/management/ManagementService.java new file mode 100644 index 0000000000..3626e16425 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/management/ManagementService.java @@ -0,0 +1,39 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.management; + +import org.apache.tuscany.sca.runtime.RuntimeComponent; + +/** + * Interface for the management service abstraction. The implementaion + * could be based on a variety of technologies including JMX, WSDM, + * SNMP etc. + * + * @version $Revision$ $Date$ + */ +public interface ManagementService { + + /** + * Registers a component for management. + * + * @param name Name of the component. + * @param component Component to be registered. + */ + void registerComponent(String name, RuntimeComponent component); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/BindingProviderFactory.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/BindingProviderFactory.java new file mode 100644 index 0000000000..0f6a932c51 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/BindingProviderFactory.java @@ -0,0 +1,60 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentReference; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; + +/** + * A factory for creating the runtime artifacts that represent bindings. + * + * @version $Rev$ $Date$ + */ +public interface BindingProviderFactory<M extends Binding> extends ProviderFactory<M> { + + /** + * Creates a new reference binding provider for the given component and + * reference. + * + * @param component The runtime component + * @param reference The reference on the runtime component + * @param binding The binding assembly model object + * @return The binding provider + */ + ReferenceBindingProvider createReferenceBindingProvider(RuntimeComponent component, + RuntimeComponentReference reference, + M binding); + + /** + * Creates a new service binding provider for the given component and + * service. + * + * @param component The runtime component + * @param service The service on the runtime component + * @param binding The binding assembly model object + * @return The binding provider + */ + ServiceBindingProvider createServiceBindingProvider(RuntimeComponent component, + RuntimeComponentService service, + M binding); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java new file mode 100644 index 0000000000..13d3376599 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java @@ -0,0 +1,363 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +import java.lang.reflect.Constructor; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Set; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.extensibility.ServiceDeclaration; +import org.apache.tuscany.sca.extensibility.ServiceDiscovery; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentReference; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; + +/** + * Default implementation of a provider factory extension point. + * + * @version $Rev$ $Date$ + */ +public class DefaultProviderFactoryExtensionPoint implements ProviderFactoryExtensionPoint { + + private ExtensionPointRegistry registry; + private final Map<Class<?>, ProviderFactory> providerFactories = new HashMap<Class<?>, ProviderFactory>(); + private final List<PolicyProviderFactory> policyProviderFactories = new ArrayList<PolicyProviderFactory>(); + private boolean loaded; + + /** + * The default constructor. Does nothing. + * + */ + public DefaultProviderFactoryExtensionPoint(ExtensionPointRegistry registry) { + this.registry = registry; + } + + /** + * Add a provider factory. + * + * @param providerFactory The provider factory + */ + public void addProviderFactory(ProviderFactory providerFactory) { + if(providerFactory instanceof PolicyProviderFactory) { + policyProviderFactories.add((PolicyProviderFactory)providerFactory); + } + providerFactories.put(providerFactory.getModelType(), providerFactory); + } + + /** + * Remove a provider factory. + * + * @param providerFactory The provider factory + */ + public void removeProviderFactory(ProviderFactory providerFactory) { + if(providerFactory instanceof PolicyProviderFactory) { + policyProviderFactories.remove((PolicyProviderFactory)providerFactory); + } + providerFactories.remove(providerFactory.getModelType()); + } + + /** + * Returns the provider factory associated with the given model type. + * @param modelType A model type + * @return The provider factory associated with the given model type + */ + public ProviderFactory getProviderFactory(Class<?> modelType) { + loadProviderFactories(); + + Class<?>[] classes = modelType.getInterfaces(); + for (Class<?> c : classes) { + ProviderFactory factory = providerFactories.get(c); + if (factory != null) { + return factory; + } + } + return providerFactories.get(modelType); + } + + public List<PolicyProviderFactory> getPolicyProviderFactories() { + loadProviderFactories(); + return policyProviderFactories; + } + + /** + * Load provider factories declared under META-INF/services. + * @param registry + */ + private void loadProviderFactories() { + if (loaded) + return; + + loadProviderFactories(BindingProviderFactory.class); + loadProviderFactories(ImplementationProviderFactory.class); + loadProviderFactories(PolicyProviderFactory.class); + + loaded = true; + } + + /** + * Load provider factories declared under META-INF/services. + * @param registry + * @param factoryClass + * @return + */ + private List<ProviderFactory> loadProviderFactories(Class<?> factoryClass) { + + // Get the provider factory service declarations + Set<ServiceDeclaration> factoryDeclarations; + ServiceDiscovery serviceDiscovery = ServiceDiscovery.getInstance(); + try { + factoryDeclarations = serviceDiscovery.getServiceDeclarations(factoryClass); + } catch (Exception e) { + throw new IllegalStateException(e); + } + + // Get the target extension point + ProviderFactoryExtensionPoint factoryExtensionPoint = + registry.getExtensionPoint(ProviderFactoryExtensionPoint.class); + List<ProviderFactory> factories = new ArrayList<ProviderFactory>(); + + for (ServiceDeclaration factoryDeclaration : factoryDeclarations) { + Map<String, String> attributes = factoryDeclaration.getAttributes(); + + // Load an implementation provider factory + if (factoryClass == ImplementationProviderFactory.class) { + String modelTypeName = attributes.get("model"); + + // Create a provider factory wrapper and register it + ImplementationProviderFactory factory = + new LazyImplementationProviderFactory(registry, modelTypeName, factoryDeclaration); + factoryExtensionPoint.addProviderFactory(factory); + factories.add(factory); + + } else if (factoryClass == BindingProviderFactory.class) { + + // Load a binding provider factory + String modelTypeName = attributes.get("model"); + + // Create a provider factory wrapper and register it + BindingProviderFactory factory = + new LazyBindingProviderFactory(registry, modelTypeName, factoryDeclaration); + factoryExtensionPoint.addProviderFactory(factory); + factories.add(factory); + } else if (factoryClass == PolicyProviderFactory.class) { + // Load a policy provider factory + String modelTypeName = attributes.get("model"); + + // Create a provider factory wrapper and register it + PolicyProviderFactory factory = + new LazyPolicyProviderFactory(registry, modelTypeName, factoryDeclaration); + factoryExtensionPoint.addProviderFactory(factory); + factories.add(factory); + + } + } + return factories; + } + + /** + * A wrapper around an implementation provider factory allowing lazy + * loading and initialization of implementation providers. + */ + private static class LazyBindingProviderFactory implements BindingProviderFactory { + + private ExtensionPointRegistry registry; + private String modelTypeName; + private ServiceDeclaration factoryDeclaration; + private BindingProviderFactory factory; + private Class modelType; + + private LazyBindingProviderFactory(ExtensionPointRegistry registry, + String modelTypeName, + ServiceDeclaration factoryDeclaration) { + this.registry = registry; + this.modelTypeName = modelTypeName; + this.factoryDeclaration = factoryDeclaration; + } + + @SuppressWarnings("unchecked") + private BindingProviderFactory getFactory() { + if (factory == null) { + try { + Class<BindingProviderFactory> factoryClass = + (Class<BindingProviderFactory>)factoryDeclaration.loadClass(); + Constructor<BindingProviderFactory> constructor = + factoryClass.getConstructor(ExtensionPointRegistry.class); + factory = constructor.newInstance(registry); + } catch (Exception e) { + throw new IllegalStateException(e); + } + } + return factory; + } + + @SuppressWarnings("unchecked") + public ReferenceBindingProvider createReferenceBindingProvider(RuntimeComponent component, + RuntimeComponentReference reference, + Binding binding) { + return getFactory().createReferenceBindingProvider(component, reference, binding); + } + + @SuppressWarnings("unchecked") + public ServiceBindingProvider createServiceBindingProvider(RuntimeComponent component, + RuntimeComponentService service, + Binding binding) { + return getFactory().createServiceBindingProvider(component, service, binding); + } + + public Class getModelType() { + if (modelType == null) { + try { + modelType = factoryDeclaration.loadClass(modelTypeName); + } catch (Exception e) { + throw new IllegalStateException(e); + } + } + return modelType; + } + + } + + /** + * A wrapper around an implementation provider factory allowing lazy + * loading and initialization of implementation providers. + */ + private class LazyImplementationProviderFactory implements ImplementationProviderFactory { + + private ExtensionPointRegistry registry; + private String modelTypeName; + private ServiceDeclaration providerClass; + private ImplementationProviderFactory factory; + private Class modelType; + + private LazyImplementationProviderFactory(ExtensionPointRegistry registry, + String modelTypeName, + ServiceDeclaration providerClass) { + this.registry = registry; + this.modelTypeName = modelTypeName; + this.providerClass = providerClass; + } + + @SuppressWarnings("unchecked") + private ImplementationProviderFactory getFactory() { + if (factory == null) { + try { + Class<ImplementationProviderFactory> factoryClass = + (Class<ImplementationProviderFactory>)providerClass.loadClass(); + Constructor<ImplementationProviderFactory> constructor = + factoryClass.getConstructor(ExtensionPointRegistry.class); + factory = constructor.newInstance(registry); + } catch (Exception e) { + throw new IllegalStateException(e); + } + } + return factory; + } + + @SuppressWarnings("unchecked") + public ImplementationProvider createImplementationProvider(RuntimeComponent component, + Implementation Implementation) { + return getFactory().createImplementationProvider(component, Implementation); + } + + public Class getModelType() { + if (modelType == null) { + try { + + modelType = providerClass.loadClass(modelTypeName); + } catch (Exception e) { + throw new IllegalStateException(e); + } + } + return modelType; + } + + } + + /** + * A wrapper around an policy provider factory allowing lazy + * loading and initialization of policy providers. + */ + private class LazyPolicyProviderFactory implements PolicyProviderFactory { + private ExtensionPointRegistry registry; + private String modelTypeName; + private ServiceDeclaration providerClass; + private PolicyProviderFactory factory; + private Class modelType; + + private LazyPolicyProviderFactory(ExtensionPointRegistry registry, + String modelTypeName, + ServiceDeclaration providerClass) { + this.registry = registry; + this.modelTypeName = modelTypeName; + this.providerClass = providerClass; + } + + @SuppressWarnings("unchecked") + private PolicyProviderFactory getFactory() { + if (factory == null) { + try { + Class<PolicyProviderFactory> factoryClass = (Class<PolicyProviderFactory>)providerClass.loadClass(); + Constructor<PolicyProviderFactory> constructor = + factoryClass.getConstructor(ExtensionPointRegistry.class); + factory = constructor.newInstance(registry); + } catch (Exception e) { + throw new IllegalStateException(e); + } + } + return factory; + } + + public PolicyProvider createImplementationPolicyProvider(RuntimeComponent component, + Implementation implementation) { + return getFactory().createImplementationPolicyProvider(component, implementation); + } + + public PolicyProvider createReferencePolicyProvider(RuntimeComponent component, + RuntimeComponentReference reference, + Binding binding) { + return getFactory().createReferencePolicyProvider(component, reference, binding); + } + + public PolicyProvider createServicePolicyProvider(RuntimeComponent component, + RuntimeComponentService service, + Binding binding) { + return getFactory().createServicePolicyProvider(component, service, binding); + } + + public Class getModelType() { + if (modelType == null) { + try { + modelType = providerClass.loadClass(modelTypeName); + } catch (Exception e) { + throw new IllegalStateException(e); + } + } + return modelType; + } + + } + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ImplementationProvider.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ImplementationProvider.java new file mode 100644 index 0000000000..015c673d66 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ImplementationProvider.java @@ -0,0 +1,68 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; + +/** + * A component implementation can implement this interface in order to tie + * into the Tuscany runtime + * + * @version $Rev$ $Date$ + */ +public interface ImplementationProvider { + + /** + * This method will be invoked when the component implementation + * is activated. + */ + void start(); + + /** + * This method will be invoked when the component implementation + * is deactivated. + */ + void stop(); + + /** + * Create an invoker for the component implementation in the invocation + * chain. The invoker will be responsible for calling the implementation + * logic for the given component. + * + * @param service The component service + * @param operation The operation that the interceptor will handle + * @return An invoker that handles the invocation logic, null should be + * returned if no invoker is required + */ + Invoker createInvoker(RuntimeComponentService service, Operation operation); + + /** + * For bindings that invoke one-way callback operations asynchronously, + * there is no need to perform a thread switch before calling the invoker. + * This method indicates whether the binding has this capability. + * + * @return true if the callback invoker is able to invoke one-way operations + * asynchronously, false if all invocations are synchronous + */ + boolean supportsOneWayInvocation(); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ImplementationProviderFactory.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ImplementationProviderFactory.java new file mode 100644 index 0000000000..6a37d1e951 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ImplementationProviderFactory.java @@ -0,0 +1,42 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.runtime.RuntimeComponent; + +/** + * An interface for factories that create implementation providers. + * + * @version $Rev$ $Date$ + */ +public interface ImplementationProviderFactory<M extends Implementation> extends ProviderFactory<M> { + + /** + * Creates a new implementation provider for the given + * component. + * + * @param component The runtime component + * @param Implementation The implementation type + * @return The implementation provider + */ + ImplementationProvider createImplementationProvider(RuntimeComponent component, M Implementation); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/PolicyImplementor.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/PolicyImplementor.java new file mode 100644 index 0000000000..f2b59a7c54 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/PolicyImplementor.java @@ -0,0 +1,38 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +import java.util.List; + +import javax.xml.namespace.QName; + +/** + * This interface can be optionally implemented by the Binding or Implementation providers to + * indicate if they implement the policies in the binding/implementation provider. + * + * @version $Rev$ $Date$ + */ +public interface PolicyImplementor { + /** + * Get a list of policy names that are implemented by this policy implementor + * @return A list of policy names + */ + List<QName> getImplementedPolicies(); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/PolicyProvider.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/PolicyProvider.java new file mode 100644 index 0000000000..644283dea1 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/PolicyProvider.java @@ -0,0 +1,41 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Interceptor; + +/** + * @version $Rev$ $Date$ + */ +public interface PolicyProvider { + /** + * Create an interceptor for a given operation + * @param operation + * @return An interceptor that realize the policySet + */ + Interceptor createInterceptor(Operation operation); + + /** + * Get the phase that the interceptor should be added + * @return The phase that this interceptor belongs to + */ + String getPhase(); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/PolicyProviderFactory.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/PolicyProviderFactory.java new file mode 100644 index 0000000000..b60a14d2da --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/PolicyProviderFactory.java @@ -0,0 +1,63 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.policy.Policy; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentReference; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; + +/** + * @version $Rev$ $Date$ + */ +public interface PolicyProviderFactory<M extends Policy> extends ProviderFactory<M> { + /** + * Create policy provider for a given reference binding + * @param component + * @param reference + * @param binding + * @return + */ + PolicyProvider createReferencePolicyProvider(RuntimeComponent component, + RuntimeComponentReference reference, + Binding binding); + + /** + * Create policy provider for a given service binding + * @param component + * @param service + * @param binding + * @return + */ + PolicyProvider createServicePolicyProvider(RuntimeComponent component, + RuntimeComponentService service, + Binding binding); + + /** + * Create policy provider for a given component implementation + * @param component + * @param implementation + * @return + */ + PolicyProvider createImplementationPolicyProvider(RuntimeComponent component, Implementation implementation); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ProviderFactory.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ProviderFactory.java new file mode 100644 index 0000000000..2102806881 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ProviderFactory.java @@ -0,0 +1,36 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +/** + * A factory for runtime providers. + * + * @version $Rev$ $Date$ + */ +public interface ProviderFactory<M> { + + /** + * The model type that this factory creates providers for. + * + * @return the model type + */ + Class<M> getModelType(); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ProviderFactoryExtensionPoint.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ProviderFactoryExtensionPoint.java new file mode 100644 index 0000000000..d8f9973338 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ProviderFactoryExtensionPoint.java @@ -0,0 +1,63 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +import java.util.List; + + +/** + * An extension point for provider factories. Holds all of the provider + * factories from loaded extension points. Allows a provider factory + * to be located based on a given model type. Hence the runtime can + * generate runtime artifacts from the in memory assembly model. + * + * @version $Rev$ $Date$ + */ +public interface ProviderFactoryExtensionPoint { + + + /** + * Add a provider factory. + * + * @param providerFactory The provider factory + */ + void addProviderFactory(ProviderFactory providerFactory); + + /** + * Remove a provider factory. + * + * @param providerFactory The provider factory + */ + void removeProviderFactory(ProviderFactory providerFactory); + + /** + * Returns the provider factory associated with the given model type. + * @param modelType A model type + * @return The provider factory associated with the given model type + */ + ProviderFactory getProviderFactory(Class<?> modelType); + + /** + * Get a list of registered PolicyProviderFactory + * @return a list of registered PolicyProviderFactory + */ + List<PolicyProviderFactory> getPolicyProviderFactories(); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ReferenceBindingProvider.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ReferenceBindingProvider.java new file mode 100644 index 0000000000..b3ab1d8b87 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ReferenceBindingProvider.java @@ -0,0 +1,76 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +import org.apache.tuscany.sca.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; + +/** + * A reference binding implementation can options implement this + * interface to tie into the Tuscany SCA runtime + * + * @version $Rev$ $Date$ + */ +public interface ReferenceBindingProvider { + + /** + * This method will be invoked when the component reference binding is + * activated. + */ + void start(); + + /** + * This method will be invoked when the component reference binding is + * deactivated. + */ + void stop(); + + /** + * Create an invoker for the reference binding in the invocation chain. The + * invoker is responsible for making the outbound invocation over the + * binding protocol. + * + * @param operation The operation that the interceptor will handle + * @return An invoker that handles the invocation logic, null should be + * returned if no invoker is required + */ + Invoker createInvoker(Operation operation); + + /** + * Get the effective interface contract imposed by the binding. For example, + * it will be interface contract introspected from the WSDL portType used by + * the endpoint for a WebService binding. + * + * @return The effective interface contract, if null is returned, the + * interface contract for the component reference will be used + */ + InterfaceContract getBindingInterfaceContract(); + + /** + * For bindings that invoke one-way operations asynchronously, there is no + * need to perform a thread switch before calling the invoker. This method + * indicates whether the binding has this capability. + * + * @return true if the binding invoker is able to invoke one-way operations + * asynchronously, false if all invocations are synchronous + */ + boolean supportsOneWayInvocation(); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ServiceBindingProvider.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ServiceBindingProvider.java new file mode 100644 index 0000000000..e15234a549 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/ServiceBindingProvider.java @@ -0,0 +1,63 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.provider; + +import org.apache.tuscany.sca.interfacedef.InterfaceContract; + +/** + * A service binding can optionally implement this interface to tie + * into the Tuscany SCA runtime + * + * @version $Rev$ $Date$ + */ +public interface ServiceBindingProvider { + /** + * This method will be invoked when the component service binding is + * activated. + */ + void start(); + + /** + * This method will be invoked when the component service binding is + * deactivated. + */ + void stop(); + + /** + * Get the effective interface contract imposed by the binding. For example, + * it will be interface contract introspected from the WSDL portType used by + * the endpoint for a WebService binding. + * + * @return The effective interface contract, if null is returned, the + * interface contract for the component service will be used + */ + InterfaceContract getBindingInterfaceContract(); + + /** + * For bindings that invoke one-way callback operations asynchronously, + * there is no need to perform a thread switch before calling the invoker. + * This method indicates whether the binding has this capability. + * + * @return true if the callback invoker is able to invoke one-way operations + * asynchronously, false if all invocations are synchronous + */ + boolean supportsOneWayInvocation(); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/DefaultWireProcessorExtensionPoint.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/DefaultWireProcessorExtensionPoint.java new file mode 100644 index 0000000000..851afee3c1 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/DefaultWireProcessorExtensionPoint.java @@ -0,0 +1,63 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.runtime; + +import java.util.ArrayList; +import java.util.List; + + +/** + * The default implementation of a <code>WireProcessorExtensionPoint</code> + * + * @version $Rev$ $Date$ + */ +public class DefaultWireProcessorExtensionPoint implements RuntimeWireProcessorExtensionPoint { + + /** + * The list of WireProcessors available to the runtime + */ + private final List<RuntimeWireProcessor> processors = new ArrayList<RuntimeWireProcessor>(); + + /** + * Registers a wire-processor in the runtime + * + * @param processor The processor to register + */ + public void addWireProcessor(RuntimeWireProcessor processor) { + processors.add(processor); + } + + /** + * De-registers a wire-processor in the runtime + * + * @param processor The processor to de-register + */ + public void removeWireProcessor(RuntimeWireProcessor processor) { + processors.remove(processor); + } + + /** + * Returns a list of registered wire-processors. + * + * @return The list of wire processors + */ + public List<RuntimeWireProcessor> getWireProcessors() { + return processors; + } +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/EndpointReference.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/EndpointReference.java new file mode 100644 index 0000000000..b6fafa5fb6 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/EndpointReference.java @@ -0,0 +1,93 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.runtime; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.assembly.Contract; +import org.apache.tuscany.sca.interfacedef.InterfaceContract; + +/** + * The endpoint reference for a component service or reference + * + * @version $Rev$ $Date$ + */ +public interface EndpointReference extends Cloneable { + /** + * Get the component for the endpoint + * @return The component, null of the EPR is for a non-SCA service + */ + RuntimeComponent getComponent(); + + /** + * Get the component service or reference for the endpoint + * @return The component service or reference, null if the EPR is for a non-SCA service + */ + Contract getContract(); + + /** + * Get the binding for the endpoint + * @return The binding + */ + Binding getBinding(); + + /** + * Get the interface contract for the endpoint + * @return The interface contract + */ + InterfaceContract getInterfaceContract(); + + /** + * Update the interface contract for the endpoint + * @param interfaceContract The updated interface contract + */ + void setInterfaceContract(InterfaceContract interfaceContract); + + /** + * Get the URI for this endpoint + * @return The URI of the endpoint + */ + String getURI(); + + /** + * Set the URI for this endpoint + * @param uri The new URI of the endpoint + */ + void setURI(String uri); + + /** + * Get the callback endpoint for this endpoint + * @return The callback endpoint for this endpoint + */ + EndpointReference getCallbackEndpoint(); + + /** + * Set the callback endpoint for this endpoint + * @param callbackEndpoint The new callback endpoint for this endpoint + */ + void setCallbackEndpoint(EndpointReference callbackEndpoint); + + Object clone() throws CloneNotSupportedException; + + void setReferenceParameters(ReferenceParameters parameters); + ReferenceParameters getReferenceParameters(); + + void mergeEndpoint(EndpointReference epr); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/ReferenceParameters.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/ReferenceParameters.java new file mode 100644 index 0000000000..0e19538aff --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/ReferenceParameters.java @@ -0,0 +1,69 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.runtime; + +/** + * Parameters for the EndPointReference + * + * @version $Rev$ $Date$ + */ +public interface ReferenceParameters extends Cloneable { + /** + * Get the callback ID + * @return the callbackID + */ + Object getCallbackID(); + + /** + * Set the callback ID + * @param callbackID the callbackID to set + */ + void setCallbackID(Object callbackID); + + /** + * Get the conversation ID + * @return the conversationID + */ + Object getConversationID(); + + /** + * Set the conversation ID + * @param conversationID the conversationID to set + */ + void setConversationID(Object conversationID); + + /** + * Get the ID for the non-ServiceReference callback object + * @return + */ + Object getCallbackObjectID(); + + /** + * Set the ID for the non-ServiceReference callback object + * @param callbackObjectID + */ + void setCallbackObjectID(Object callbackObjectID); + + EndpointReference getCallbackReference(); + + void setCallbackReference(EndpointReference callback); + + Object clone() throws CloneNotSupportedException; +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponent.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponent.java new file mode 100644 index 0000000000..a9238cf6eb --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponent.java @@ -0,0 +1,83 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.runtime; + +import java.util.List; + +import org.apache.tuscany.sca.assembly.Component; +import org.apache.tuscany.sca.provider.ImplementationProvider; +import org.apache.tuscany.sca.provider.PolicyProvider; + +/** + * The runtime component interface. Provides the bridge between the + * assembly model representation of a component and its runtime + * realization. + * + * @version $Rev$ $Date$ + */ +public interface RuntimeComponent extends Component { + /** + * Set the implementation-specific configuration for this component + * @param implementationProvider The object that manages the component implementation + */ + void setImplementationProvider(ImplementationProvider implementationProvider); + + /** + * Get the implementation-specific configuation for this component + * @return The implementation provider for this component + */ + ImplementationProvider getImplementationProvider(); + + /** + * Get the associated component context + * @return + */ + RuntimeComponentContext getComponentContext(); + + /** + * Set the associated component context + * @param context + */ + void setComponentContext(RuntimeComponentContext context); + + /** + * Tests if the RuntimeComponent is started + * @return true if the RuntimeComponent is started otherwise false + */ + boolean isStarted(); + + /** + * Sets the RuntimeComponent started state + * @param the state to set + */ + void setStarted(boolean started); + + /** + * Add a policy provider to the component + * @param policyProvider + */ + void addPolicyProvider(PolicyProvider policyProvider); + + /** + * Get a list of policy providers configured for this component + * @return + */ + List<PolicyProvider> getPolicyProviders(); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponentContext.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponentContext.java new file mode 100644 index 0000000000..2f8dd70bc5 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponentContext.java @@ -0,0 +1,104 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.runtime; + +import java.io.IOException; +import java.io.Reader; +import java.io.Writer; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.assembly.ComponentService; +import org.osoa.sca.CallableReference; +import org.osoa.sca.ComponentContext; +import org.osoa.sca.ServiceReference; + +/** + * @version $Rev$ $Date$ + */ +public interface RuntimeComponentContext extends ComponentContext { + /** + * Activate the reference (creating runtime wires) + * @param reference + */ + void start(RuntimeComponentReference reference); + + /** + * Deserialize the component reference + * @param reader + * @return A component that contains the reference + * @throws IOException + */ + RuntimeComponent read(Reader reader) throws IOException; + + /** + * Serialize the component reference + * @param reference + * @param writer + * @throws IOException + */ + void write(RuntimeComponentReference reference, Writer writer) throws IOException; + + /** + * Get the callable reference for a given component reference + * @param <B> + * @param businessInterface The business interface + * @param reference The reference to be wired + * @param binding The binding to be used, if it's null, either binding.sca or the 1st binding + * will be selected + * @return A service reference representing the wire + */ + <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, + RuntimeComponentReference reference, + Binding binding); + + /** + * Bind the reference to a target component/componentService + * @param <B> + * @param businessInterface The business interface + * @param reference The reference to be wired + * @param component The target component + * @param service The target component service + * @return A service reference representing the wire + */ + <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, + RuntimeComponentReference reference, + RuntimeComponent component, + RuntimeComponentService service); + + /** + * Create a callable reference for the given component service + * @param <B> + * @param businessInterface + * @param component + * @param service + * @return + */ + <B> CallableReference<B> getCallableReference(Class<B> businessInterface, + RuntimeComponent component, + RuntimeComponentService service); + + /** + * @param <B> + * @param businessInterface + * @param service + * @return + */ + <B> ServiceReference<B> createSelfReference(Class<B> businessInterface, ComponentService service); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponentReference.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponentReference.java new file mode 100644 index 0000000000..a349b71d72 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponentReference.java @@ -0,0 +1,99 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.runtime; + +import java.util.List; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.assembly.ComponentReference; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.provider.PolicyProvider; +import org.apache.tuscany.sca.provider.ReferenceBindingProvider; + +/** + * The runtime component reference. Provides the bridge between the + * assembly model representation of a component reference and its runtime + * realization + * + * @version $Rev$ $Date$ + */ +public interface RuntimeComponentReference extends ComponentReference { + + /** + * Get a list of runtime wires to the reference + * + * @return The list of wires + */ + List<RuntimeWire> getRuntimeWires(); + + /** + * Get the runtime wire for the given binding + * @param binding The assembly model binding + * @return The runtime wire + */ + RuntimeWire getRuntimeWire(Binding binding); + + /** + * Returns the reference binding provider associated with this + * component reference and the given binding. + * + * @param binding The assembly model binding + * @return The runtime reference binding provider + */ + ReferenceBindingProvider getBindingProvider(Binding binding); + + /** + * Sets the reference binding provider associated with this + * component reference and the given binding. + * + * @param binding The assembly model binding + * @param bindingProvider The runtime reference binding provider + */ + void setBindingProvider(Binding binding, ReferenceBindingProvider bindingProvider); + + /** + * Add a policy provider for the given binding to the reference + * @param binding The assembly model binding + * @param policyProvider The policy handler + */ + void addPolicyProvider(Binding binding, PolicyProvider policyProvider); + + /** + * Get a list of policy providers for the given binding + * @param binding The assembly model binding + * @return A list of policy proviers for the given binding + */ + List<PolicyProvider> getPolicyProviders(Binding binding); + + /** + * Get the invoker for the given binding and operation + * @param binding The assembly model binding + * @param operation The assembly model operation + * @return The runtime Invoker + */ + Invoker getInvoker(Binding binding, Operation operation); + + /** + * Set the owning component + * @param component + */ + void setComponent(RuntimeComponent component); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponentService.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponentService.java new file mode 100644 index 0000000000..87eb0069b4 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeComponentService.java @@ -0,0 +1,138 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.runtime; + +import java.util.List; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.assembly.ComponentService; +import org.apache.tuscany.sca.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.InvocationChain; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.provider.PolicyProvider; +import org.apache.tuscany.sca.provider.ServiceBindingProvider; + +/** + * The runtime component service. Provides the bridge between the + * assembly model representation of a component service and its runtime + * realization + * + * @version $Rev$ $Date$ + */ +public interface RuntimeComponentService extends ComponentService { + + /** + * Get a list of runtime wires to the service + * + * @return The list of wires + */ + List<RuntimeWire> getRuntimeWires(); + /** + * Get the runtime wire for the given binding + * @param binding The assembly model binding + * @return The runtime wire + */ + RuntimeWire getRuntimeWire(Binding binding); + + /** + * Get the callback wires assoicated with this service + * + * @return The list of runtime callback wires + */ + List<RuntimeWire> getCallbackWires(); + + /** + * Returns the service binding provider associated with this + * component service and the given binding. + * + * @param binding The assembly model binding + * @return The runtime service binding provider + */ + ServiceBindingProvider getBindingProvider(Binding binding); + + /** + * Returns the service binding provider associated with this + * component service and the given binding. + * + * @param binding + * @param interfaceContract + * @return + */ + RuntimeWire getRuntimeWire(Binding binding, InterfaceContract interfaceContract); + + /** + * Sets the service binding provider associated with this + * component service and the given binding. + * + * @param binding The assembly model binding + * @param bindingProvider The runtime service binding provider + */ + void setBindingProvider(Binding binding, ServiceBindingProvider bindingProvider); + + /** + * Get the invoker for the given binding and operation + * @param binding The assembly model binding + * @param operation The assembly model operation + * @return The runtime invoker + */ + Invoker getInvoker(Binding binding, Operation operation); + + /** + * Get the invoker for the given binding and operation + * @param binding The assembly model binding + * @param interfaceContract the client interface contract + * @param operation The assembly model operation + * @return The runtime invoker + */ + Invoker getInvoker(Binding binding, InterfaceContract interfaceContract, Operation operation); + + /** + * Get the invocation chain for the given binding and operation + * @param binding The assembly model binding + * @param operation The assembly model operation + * @return The runtime invocation chain + */ + InvocationChain getInvocationChain(Binding binding, Operation operation); + + /** + * Get the invocation chain for the given binding and operation + * @param binding The assembly model binding + * @param operation The assembly model operation + * @param interfaceContract the client interface contract + * @return The runtime invocation chain + */ + InvocationChain getInvocationChain(Binding binding, InterfaceContract interfaceContract, Operation operation); + + /** + * Add a policy provider for the given binding to the service + * @param binding The assembly model binding + * @param policyProvider The policy handler + */ + void addPolicyProvider(Binding binding, PolicyProvider policyProvider); + + /** + * Get a list of policy providers for the given binding + * @param binding The assembly model binding + * @return A list of policy proviers for the given binding + */ + List<PolicyProvider> getPolicyProviders(Binding binding); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeWire.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeWire.java new file mode 100644 index 0000000000..da37385af1 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeWire.java @@ -0,0 +1,101 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.runtime; + +import java.lang.reflect.InvocationTargetException; +import java.util.List; + +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.InvocationChain; +import org.apache.tuscany.sca.invocation.Message; + +/** + * The runtime wire interface that connects a component reference to a + * component service (or an external service) over the selected binding + * + * @version $Rev$ $Date$ + */ +public interface RuntimeWire extends Cloneable { + + /** + * Get the source of the wire + * + * @return The end point reference of the source + */ + EndpointReference getSource(); + + /** + * Get the target of the wire + * + * @return The end point reference of the target + */ + EndpointReference getTarget(); + + /** + * Rebind the runtime wire with the given target + * @param target The target endpoint reference + */ + void setTarget(EndpointReference target); + + /** + * Force the invocation chains to be rebuilt + */ + void rebuild(); + + /** + * Returns the invocation chains for service operations associated with the + * wire + * + * @return the invocation chains for service operations associated with the + * wire + */ + List<InvocationChain> getInvocationChains(); + + /** + * Lookup the invocation chain by operation + * @param operation The operation + * @return The invocation chain for the given operation + */ + InvocationChain getInvocationChain(Operation operation); + + /** + * Invoke an operation with given arguments + * @param operation The operation + * @param args The arguments + * @return The result + * @throws InvocationTargetException + */ + Object invoke(Operation operation, Object[] args) throws InvocationTargetException; + + /** + * Invoke an operation with a context message + * @param operation The operation + * @param msg The message + * @return The result + * @throws InvocationTargetException + */ + Object invoke(Operation operation, Message msg) throws InvocationTargetException; + + /** + * @return a clone of the runtime wire + * @throws CloneNotSupportedException + */ + Object clone() throws CloneNotSupportedException; +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeWireProcessor.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeWireProcessor.java new file mode 100644 index 0000000000..fbb7aae467 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeWireProcessor.java @@ -0,0 +1,35 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.runtime; + +/** + * Implementations are called after wires are decorated with policy and before they are connected. + * + * @version $Rev$ $Date$ + */ +public interface RuntimeWireProcessor { + + /** + * Process the runtime wire to add interceptors + * + * @param wire + */ + void process(RuntimeWire wire); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeWireProcessorExtensionPoint.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeWireProcessorExtensionPoint.java new file mode 100644 index 0000000000..4b2c71b397 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/runtime/RuntimeWireProcessorExtensionPoint.java @@ -0,0 +1,53 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.runtime; + +import java.util.List; + +/** + * Acts as a delegating <code>WireProcessorExtensionPoint</code>, delegating + * processing of wires after policies have been applied and source and targets + * have been connected. + * + * @version $Rev$ $Date$ + */ +public interface RuntimeWireProcessorExtensionPoint { + + /** + * Registers a wire-processor in the runtime + * + * @param processor The processor to register + */ + void addWireProcessor(RuntimeWireProcessor processor); + + /** + * De-registers a wire-processor in the runtime + * + * @param processor The processor to de-register + */ + void removeWireProcessor(RuntimeWireProcessor processor); + + /** + * Returns a list of registered wire-processors. + * + * @return The list of wire processors + */ + List<RuntimeWireProcessor> getWireProcessors(); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/DuplicateRecordException.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/DuplicateRecordException.java new file mode 100644 index 0000000000..3cf82982dc --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/DuplicateRecordException.java @@ -0,0 +1,45 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.store; + +/** + * thrown when a record already exists during an insert operation + * + * @version $Rev$ $Date$ + */ +public class DuplicateRecordException extends StoreWriteException { + private static final long serialVersionUID = 3116253222569378447L; + + public DuplicateRecordException() { + super(); + } + + public DuplicateRecordException(String message, Throwable cause) { + super(message, cause); + } + + public DuplicateRecordException(String message) { + super(message); + } + + public DuplicateRecordException(Throwable cause) { + super(cause); + } + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/RecoveryListener.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/RecoveryListener.java new file mode 100644 index 0000000000..9d965a3369 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/RecoveryListener.java @@ -0,0 +1,46 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.store; + +import java.util.UUID; + +/** + * Implementations receive callback events during a store recovery operation + * + * @version $Rev$ $Date$ + */ +public interface RecoveryListener { + + /** + * Signals the start of a recovery + */ + void onBegin(); + + /** + * Received when a record is recovered + * + * @param id + */ + void onRecord(UUID id); + + /** + * Signals the end of recovery + */ + void onEnd(); +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/Store.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/Store.java new file mode 100644 index 0000000000..b15cde066a --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/Store.java @@ -0,0 +1,96 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.store; + +import org.apache.tuscany.sca.event.EventPublisher; +import org.apache.tuscany.sca.runtime.RuntimeComponent; + +/** + * Implementations provide a persistent store for runtime data such as conversational state. A persistent store could be + * implemented in a durable fashion using JDBC or a journaling system, or using a non-durable mechanism such as an + * in-memory map. + * + * @version $Rev$ $Date$ + */ +public interface Store extends EventPublisher { + + /* Used to indicate an the default expiration offset for records for the store */ + long DEFAULT_EXPIRATION_OFFSET = -1; + + /* Used to indicate an entry should not expire */ + long NEVER = -2; + + /** + * Adds the given record to the store. Implementations may choose different strategies for writing data such as + * write-through or write-behind. + * + * @param owner the instance owner + * @param id the unique id of the record + * @param object the object representing the data to write + * @param expiration the time in milliseconds when the entry expires + * @throws StoreWriteException if an error occurs during the write operation + */ + void insertRecord(RuntimeComponent owner, String id, Object object, long expiration) throws StoreWriteException; + + /** + * Updates a given record in the store, overwriting previous information. + * + * @param owner the instance owner + * @param id the unique id of the record + * @param object the object representing the data to write + * @param expiration the time in milliseconds when the entry expires + * @throws StoreWriteException + */ + void updateRecord(RuntimeComponent owner, String id, Object object, long expiration) throws StoreWriteException; + + /** + * Returns the deserialized object in the store corresponding to the given id + * + * @param owner the instance owner + * @param id the unique id of the record + * @return the deserialized object or null if one is not found + * @throws StoreReadException + */ + Object readRecord(RuntimeComponent owner, String id) throws StoreReadException; + + /** + * Removes a record from the store + * + * @param owner the instance owner + * @param id the unique id of the record + * @throws StoreWriteException + */ + void removeRecord(RuntimeComponent owner, String id) throws StoreWriteException; + + /** + * Removes all records from the store + * + * @throws StoreWriteException + */ + void removeRecords() throws StoreWriteException; + + /** + * Initiates a recovery operation, for example during restart after a crash + * + * @param listener the listener to receive recovery callback events + * @throws StoreReadException + */ + void recover(RecoveryListener listener) throws StoreReadException; + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreException.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreException.java new file mode 100644 index 0000000000..647eba33aa --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreException.java @@ -0,0 +1,46 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.store; + + +/** + * Represents a generic exception thrown by a <code>Store</code> + * + * @version $Rev$ $Date$ + */ +public class StoreException extends Exception { + private static final long serialVersionUID = -319152147419962709L; + + public StoreException() { + super(); + } + + public StoreException(String message, Throwable cause) { + super(message, cause); + } + + public StoreException(String message) { + super(message); + } + + public StoreException(Throwable cause) { + super(cause); + } + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreExpirationEvent.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreExpirationEvent.java new file mode 100644 index 0000000000..5c1a3ca79d --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreExpirationEvent.java @@ -0,0 +1,71 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.store; + +import org.apache.tuscany.sca.event.Event; +import org.apache.tuscany.sca.runtime.RuntimeComponent; + +/** + * Fired when a store implementation expires a resource + * + * @version $Rev$ $Date$ + */ +public class StoreExpirationEvent implements Event { + private Object source; + private RuntimeComponent owner; + private Object instance; + + /** + * Constructor. + * + * @param source the source of the event + * @param owner the owner of the expiring object + * @param instance the expiring object + */ + public StoreExpirationEvent(Object source, RuntimeComponent owner, Object instance) { + assert source != null; + assert owner != null; + assert instance != null; + this.source = source; + this.owner = owner; + this.instance = instance; + } + + public Object getSource() { + return source; + } + + /** + * Returns the owner of the expiring object. + * + * @return the owner of the expiring object. + */ + public RuntimeComponent getOwner() { + return owner; + } + + /** + * Returns the expiring object. + * + * @return the expiring object. + */ + public Object getInstance() { + return instance; + } +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreMonitor.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreMonitor.java new file mode 100644 index 0000000000..66bbae684d --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreMonitor.java @@ -0,0 +1,71 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.store; + + +/** + * A generic monintor interface for services to log events + * + * @version $Rev$ $Date$ + */ +public interface StoreMonitor { + + /** + * Signals the service has started + * + * @param msg + */ + void start(String msg); + + /** + * Signals the service has been shutdown + * + * @param msg + */ + void stop(String msg); + + /** + * Fired when recovery is started + */ + + void beginRecover(); + + /** + * Fired when recovery is completed + */ + + void endRecover(); + + /** + * Fired when a record is processed during recovery + * + * @param recordId the id of the record being recovered + */ + + void recover(Object recordId); + + /** + * Signals an error event + * + * @param e the error + */ + + void error(Throwable e); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreReadException.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreReadException.java new file mode 100644 index 0000000000..3a563b9fb5 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreReadException.java @@ -0,0 +1,45 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.store; + +/** + * Thrown when an error occurs reading from persistent storage + * + * @version $Rev$ $Date$ + */ +public class StoreReadException extends StoreException { + private static final long serialVersionUID = -8624542082121467271L; + + public StoreReadException() { + super(); + } + + public StoreReadException(String message, Throwable cause) { + super(message, cause); + } + + public StoreReadException(String message) { + super(message); + } + + public StoreReadException(Throwable cause) { + super(cause); + } + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreWriteException.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreWriteException.java new file mode 100644 index 0000000000..ad55ce386b --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/store/StoreWriteException.java @@ -0,0 +1,45 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.store; + +/** + * Thrown when an error occurs writing to persistent storage + * + * @version $Rev$ $Date$ + */ +public class StoreWriteException extends StoreException { + private static final long serialVersionUID = 5539070473942048555L; + + public StoreWriteException() { + super(); + } + + public StoreWriteException(String message, Throwable cause) { + super(message, cause); + } + + public StoreWriteException(String message) { + super(message); + } + + public StoreWriteException(Throwable cause) { + super(cause); + } + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/NotificationListener.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/NotificationListener.java new file mode 100644 index 0000000000..5701a04ed1 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/NotificationListener.java @@ -0,0 +1,66 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.work; + +/** + * A callback inyterface that can be optionally used for registering + * interest in status of asynchronously scheduled unit of work. + * + */ +public interface NotificationListener<T extends Runnable> { + + /** + * Callback method when the unit of work is accepted. + * + * @param work Work that was accepted. + */ + void workAccepted(T work); + + /** + * Callback method when the unit of work is successfully completed. + * + * @param work Work that was succesfully completed. + */ + void workCompleted(T work); + + /** + * Callback when the unit of work is started. + * + * @param work Unit of work that was started. + */ + void workStarted(T work); + + /** + * Callback when the unit of work is rejected. + * + * @param work Unit of work that was rejected. + */ + void workRejected(T work); + + /** + * Callnack when the unit of work fails to complete. + * + * @param work Unit of work that failed to complete. + * @param error Error that caused the unit of work to fail. + */ + void workFailed(T work, Throwable error); + + + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/WorkScheduler.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/WorkScheduler.java new file mode 100644 index 0000000000..f4e97f71ec --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/WorkScheduler.java @@ -0,0 +1,57 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.work; + +/** + * Defines the contract for scheduling asychronous units of work. + * + * <p> + * Units of work can be scheduled with an optional <code>NotificationListener</code>. + * If a notification listener is specified, the caller will be notified regarding the + * status of the work. The unit of work can either be completed, rejected or completed + * with an error. If the work completed with an error, the caller is notfied with the + * error details. + * </p> + * + */ +public interface WorkScheduler { + + /** + * Schedules a unit of work for future execution. The notification listener + * is used to register interest in callbacks regarding the status of the work. + * + * @param work The unit of work that needs to be asynchronously executed. + * @param listener Notification listener for callbacks. + */ + <T extends Runnable>void scheduleWork(T work, NotificationListener<T> listener); + + /** + * Schedules a unit of work for future execution. The notification listener + * is used to register interest in callbacks regarding the status of the work. + * + * @param work The unit of work that needs to be asynchronously executed. + */ + <T extends Runnable>void scheduleWork(T work); + + /** + * Destroys the work scheduler + */ + void destroy(); + +} diff --git a/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/WorkSchedulerException.java b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/WorkSchedulerException.java new file mode 100644 index 0000000000..d1f4496337 --- /dev/null +++ b/sca-java-1.x/tags/1.2/modules/core-spi/src/main/java/org/apache/tuscany/sca/work/WorkSchedulerException.java @@ -0,0 +1,47 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.work; + + +/** + * Exception thrown by the work scheduler in case of unexpected exceptions. + * + * @version $Rev$ $Date$ + * + */ +public class WorkSchedulerException extends RuntimeException { + private static final long serialVersionUID = 1L; + + public WorkSchedulerException() { + super(); + } + + public WorkSchedulerException(String message, Throwable cause) { + super(message, cause); + } + + public WorkSchedulerException(String message) { + super(message); + } + + public WorkSchedulerException(Throwable cause) { + super(cause); + } + +} |