diff options
author | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:13:16 +0000 |
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committer | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:13:16 +0000 |
commit | 3ac2d800d840f03618fc364090d786effde84b1f (patch) | |
tree | e334754cd5c37e1465230497b48cc79584c1f571 /branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core | |
parent | 9bed5ae38c581999db465b42b504026a7097af95 (diff) |
Moving 1.x branches
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835142 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core')
7 files changed, 0 insertions, 683 deletions
diff --git a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultExtensionPointRegistry.java b/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultExtensionPointRegistry.java deleted file mode 100644 index 48f240559c..0000000000 --- a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultExtensionPointRegistry.java +++ /dev/null @@ -1,184 +0,0 @@ -/* - * 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.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>(); - - /** - * Constructs a new registry. - */ - public DefaultExtensionPointRegistry() { - } - - /** - * 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 - * - * @throws IllegalArgumentException if extensionPoint is null - */ - public void addExtensionPoint(Object extensionPoint) { - if (extensionPoint == null) { - throw new IllegalArgumentException("Cannot register null as an ExtensionPoint"); - } - - Set<Class<?>> interfaces = getAllInterfaces(extensionPoint.getClass()); - for (Class<?> i : interfaces) { - extensionPoints.put(i, extensionPoint); - } - } - - private Constructor<?> getConstructor(Constructor<?>[] constructors, Class<?>[] paramTypes) { - for (Constructor<?> c : constructors) { - Class<?>[] types = c.getParameterTypes(); - if (c.getParameterTypes().length == paramTypes.length) { - boolean found = true; - for (int i = 0; i < types.length; i++) { - if (types[i] != paramTypes[i]) { - found = false; - break; - } - } - if (found) { - return c; - } - } - } - return null; - } - - /** - * 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 - * - * @throws IllegalArgumentException if extensionPointType is null - */ - public <T> T getExtensionPoint(Class<T> extensionPointType) { - if (extensionPointType == null) { - throw new IllegalArgumentException("Cannot lookup ExtensionPoint of type null"); - } - - 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 - Constructor<?>[] constructors = extensionPointClass.getConstructors(); - Constructor<?> constructor = getConstructor(constructors, new Class<?>[] {ExtensionPointRegistry.class}); - if (constructor != null) { - extensionPoint = constructor.newInstance(this); - } else { - constructor = getConstructor(constructors, new Class<?>[] {}); - if (constructor != null) { - extensionPoint = constructor.newInstance(); - } else { - throw new IllegalArgumentException( - "No valid constructor is found for " + extensionPointClass); - } - } - - // 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 - * - * @throws IllegalArgumentException if extensionPoint is null - */ - public void removeExtensionPoint(Object extensionPoint) { - if (extensionPoint == null) { - throw new IllegalArgumentException("Cannot remove null as an 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) { - 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/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultModuleActivatorExtensionPoint.java b/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultModuleActivatorExtensionPoint.java deleted file mode 100644 index 8ca030c0dd..0000000000 --- a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultModuleActivatorExtensionPoint.java +++ /dev/null @@ -1,92 +0,0 @@ -/* - * 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.util.ArrayList; -import java.util.List; -import java.util.Set; - -import org.apache.tuscany.sca.extensibility.ServiceDeclaration; -import org.apache.tuscany.sca.extensibility.ServiceDiscovery; - -/** - * Default implementation of an extension point to hold Tuscany module activators. - * - * @version $Rev$ $Date$ - */ -public class DefaultModuleActivatorExtensionPoint implements ModuleActivatorExtensionPoint { - private List<ModuleActivator> activators = new ArrayList<ModuleActivator>(); - private boolean loadedActivators; - - /** - * Constructs a new extension point. - */ - public DefaultModuleActivatorExtensionPoint() { - } - - public void addModuleActivator(ModuleActivator activator) { - activators.add(activator); - } - - public List<ModuleActivator> getModuleActivators() { - loadModuleActivators(); - return activators; - } - - public void removeModuleActivator(Object activator) { - activators.remove(activator); - } - - /** - * Dynamically load module activators declared under META-INF/services - */ - private void loadModuleActivators() { - if (loadedActivators) - return; - - // Get the activator service declarations - Set<ServiceDeclaration> activatorDeclarations; - try { - activatorDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations(ModuleActivator.class); - } catch (IOException e) { - throw new IllegalStateException(e); - } - - // Load and instantiate module activators - for (ServiceDeclaration activatorDeclaration: activatorDeclarations) { - ModuleActivator activator; - try { - Class<ModuleActivator> activatorClass = (Class<ModuleActivator>)activatorDeclaration.loadClass(); - activator = activatorClass.newInstance(); - } catch (ClassNotFoundException e) { - throw new IllegalArgumentException(e); - } catch (InstantiationException e) { - throw new IllegalArgumentException(e); - } catch (IllegalAccessException e) { - throw new IllegalArgumentException(e); - } - addModuleActivator(activator); - } - - loadedActivators = true; - } - -} diff --git a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java b/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java deleted file mode 100644 index 6f7c83c8d9..0000000000 --- a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java +++ /dev/null @@ -1,184 +0,0 @@ -/* - * 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.extensibility.ServiceDiscovery; - -/** - * Default implementation of an extension point to hold Tuscany utility utilities. - * - * @version $Rev$ $Date$ - */ -public class DefaultUtilityExtensionPoint implements UtilityExtensionPoint { - private Map<Class<?>, Object> utilities = new HashMap<Class<?>, Object>(); - - private ExtensionPointRegistry extensionPoints; - - /** - * Constructs a new extension point. - */ - public DefaultUtilityExtensionPoint(ExtensionPointRegistry extensionPoints) { - this.extensionPoints = extensionPoints; - } - - /** - * Add a utility to the extension point. This default implementation - * stores utilities against the interfaces that they implement. - * - * @param utility The instance of the utility - * - * @throws IllegalArgumentException if utility is null - */ - public void addUtility(Object utility) { - if (utility == null) { - throw new IllegalArgumentException("Cannot register null as a Service"); - } - - Set<Class<?>> interfaces = getAllInterfaces(utility.getClass()); - for (Class<?> i : interfaces) { - utilities.put(i, utility); - } - } - - private Constructor<?> getConstructor(Constructor<?>[] constructors, Class<?>[] paramTypes) { - for (Constructor<?> c : constructors) { - Class<?>[] types = c.getParameterTypes(); - if (c.getParameterTypes().length == paramTypes.length) { - boolean found = true; - for (int i = 0; i < types.length; i++) { - if (types[i] != paramTypes[i]) { - found = false; - break; - } - } - if (found) { - return c; - } - } - } - return null; - } - - /** - * Get the utility by the interface that it implements - * - * @param utilityType The lookup key (utility interface) - * @return The instance of the utility - * - * @throws IllegalArgumentException if utilityType is null - */ - public <T> T getUtility(Class<T> utilityType) { - if (utilityType == null) { - throw new IllegalArgumentException("Cannot lookup Service of type null"); - } - - Object utility = utilities.get(utilityType); - if (utility == null) { - - // Dynamically load a utility class declared under META-INF/utilities - try { - Class<?> utilityClass = - ServiceDiscovery.getInstance().loadFirstServiceClass(utilityType); - if (utilityClass != null) { - // Construct the utility - Constructor<?>[] constructors = utilityClass.getConstructors(); - Constructor<?> constructor = getConstructor(constructors, new Class<?>[] {ExtensionPointRegistry.class}); - if (constructor != null) { - utility = constructor.newInstance(extensionPoints); - } else { - constructor = getConstructor(constructors, new Class<?>[] {}); - if (constructor != null) { - utility = constructor.newInstance(); - } else { - throw new IllegalArgumentException( - "No valid constructor is found for " + utilityClass); - } - } - - // Cache the loaded utility - addUtility(utility); - } - } 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 utilityType.cast(utility); - } - - /** - * Remove a utility based on the interface that it implements - * - * @param utility The utility to remove - * - * @throws IllegalArgumentException if utility is null - */ - public void removeUtility(Object utility) { - if (utility == null) { - throw new IllegalArgumentException("Cannot remove null as a Service"); - } - - Set<Class<?>> interfaces = getAllInterfaces(utility.getClass()); - for (Class<?> i : interfaces) { - utilities.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) { - 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/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/ExtensionPointRegistry.java b/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/ExtensionPointRegistry.java deleted file mode 100644 index f2f67b2d52..0000000000 --- a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/ExtensionPointRegistry.java +++ /dev/null @@ -1,56 +0,0 @@ -/* - * 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 - * - * @throws IllegalArgumentException if extensionPoint is null - */ - 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 - * - * @throws IllegalArgumentException if extensionPointType is null - */ - <T> T getExtensionPoint(Class<T> extensionPointType); - - /** - * Remove an extension point - * @param extensionPoint The extension point to remove - * - * @throws IllegalArgumentException if extensionPoint is null - */ - void removeExtensionPoint(Object extensionPoint); -} diff --git a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/ModuleActivator.java b/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/ModuleActivator.java deleted file mode 100644 index dbfd0dcd90..0000000000 --- a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/ModuleActivator.java +++ /dev/null @@ -1,60 +0,0 @@ -/* - * 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 opportunity 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 register 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/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/ModuleActivatorExtensionPoint.java b/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/ModuleActivatorExtensionPoint.java deleted file mode 100644 index ec0f12b8ba..0000000000 --- a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/ModuleActivatorExtensionPoint.java +++ /dev/null @@ -1,53 +0,0 @@ -/* - * 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.util.List; - - -/** - * The extension point for the Tuscany module activator extensions. - * - * @version $Rev$ $Date$ - */ -public interface ModuleActivatorExtensionPoint { - - /** - * Add a module activator extension to the extension point - * @param activator The instance of the module activator - * - * @throws IllegalArgumentException if activator is null - */ - void addModuleActivator(ModuleActivator activator); - - /** - * Returns the module activator extensions. - * @return The module activator extensions - */ - List<ModuleActivator> getModuleActivators(); - - /** - * Remove a module activator - * @param activator The module activator to remove - * - * @throws IllegalArgumentException if activator is null - */ - void removeModuleActivator(Object activator); -} diff --git a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/UtilityExtensionPoint.java b/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/UtilityExtensionPoint.java deleted file mode 100644 index 6b14b95666..0000000000 --- a/branches/sca-java-20080910/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/UtilityExtensionPoint.java +++ /dev/null @@ -1,54 +0,0 @@ -/* - * 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 extension point for the Tuscany core utility extensions. - * - * @version $Rev$ $Date$ - */ -public interface UtilityExtensionPoint { - - /** - * Add a utility to the extension point - * @param utility The instance of the utility - * - * @throws IllegalArgumentException if utility is null - */ - void addUtility(Object utility); - - /** - * Get the utility by the interface - * @param utilityType The lookup key (utility interface) - * @return The instance of the utility - * - * @throws IllegalArgumentException if utilityType is null - */ - <T> T getUtility(Class<T> utilityType); - - /** - * Remove a utility - * @param utility The utility to remove - * - * @throws IllegalArgumentException if utility is null - */ - void removeUtility(Object utility); -} |