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Diffstat (limited to 'tags/java/sca/2.0-M3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/CompositeContext.java')
| -rw-r--r-- | tags/java/sca/2.0-M3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/CompositeContext.java | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/CompositeContext.java b/tags/java/sca/2.0-M3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/CompositeContext.java new file mode 100644 index 0000000000..5d26670f3b --- /dev/null +++ b/tags/java/sca/2.0-M3/modules/core/src/main/java/org/apache/tuscany/sca/core/context/CompositeContext.java @@ -0,0 +1,225 @@ +/* + * 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.context; + +import java.io.IOException; +import java.io.Reader; +import java.io.Writer; +import java.util.ArrayList; +import java.util.List; + +import javax.xml.stream.XMLStreamReader; + +import org.apache.tuscany.sca.assembly.Component; +import org.apache.tuscany.sca.assembly.ComponentReference; +import org.apache.tuscany.sca.assembly.ComponentService; +import org.apache.tuscany.sca.assembly.Endpoint; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.assembly.CompositeActivator; +import org.apache.tuscany.sca.core.conversation.ConversationManager; +import org.apache.tuscany.sca.core.invocation.ProxyFactory; +import org.apache.tuscany.sca.core.invocation.ThreadMessageContext; +import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException; +import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory; +import org.apache.tuscany.sca.invocation.Message; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentReference; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; +import org.oasisopen.sca.ServiceRuntimeException; + +/** + * @version $Rev$ $Date$ + */ +public abstract class CompositeContext { + /** + * Create a self-reference for a component service + * @param component + * @param service + * @throws CloneNotSupportedException + * @throws InvalidInterfaceException + */ + public abstract ComponentReference createSelfReference(Component component, + ComponentService service, + Class<?> businessInterface) + throws CloneNotSupportedException, InvalidInterfaceException; + + /** + * Bind a component reference to a component service + * @param <B> + * @param businessInterface + * @param reference + * @param service + * @return + * @throws CloneNotSupportedException + * @throws InvalidInterfaceException + */ + public abstract RuntimeComponentReference bindComponentReference(Class<?> businessInterface, + RuntimeComponentReference reference, + RuntimeComponent component, + RuntimeComponentService service) + throws CloneNotSupportedException, InvalidInterfaceException; + + /** + * @param component + * @param reference + * @param writer + * @throws IOException + */ + public abstract void write(Component component, ComponentReference reference, Writer writer) throws IOException; + + /** + * @param component + * @param reference + * @param service + * @param writer + * @throws IOException + */ + public abstract void write(Component component, + ComponentReference reference, + ComponentService service, + Writer writer) throws IOException; + + /** + * @param component + * @param reference + * @return + * @throws IOException + */ + public abstract String toXML(Component component, ComponentReference reference) throws IOException; + + /** + * @param component + * @param service + * @return + * @throws IOException + */ + public abstract String toXML(Component component, ComponentService service) throws IOException; + + /** + * @param reader + * @return + * @throws IOException + */ + public abstract RuntimeComponent read(Reader reader) throws IOException; + + /** + * @param streamReader + * @return + * @throws IOException + */ + public abstract RuntimeComponent read(XMLStreamReader streamReader) throws IOException; + + /** + * @param xml + * @return + * @throws IOException + */ + public abstract Component fromXML(String xml) throws IOException; + + /** + * @param streamReader + * @return + * @throws IOException + */ + public abstract Component fromXML(XMLStreamReader streamReader) throws IOException; + + /** + * @return + */ + public static RuntimeComponent getCurrentComponent() { + Message message = ThreadMessageContext.getMessageContext(); + if (message != null) { + Endpoint to = message.getTo(); + if (to == null) { + return null; + } + RuntimeComponent component = (RuntimeComponent) message.getTo().getComponent(); + return component; + } + return null; + } + + /** + * @return + */ + public static CompositeActivator getCurrentCompositeActivator() { + RuntimeComponent component = getCurrentComponent(); + if (component != null) { + ComponentContextExt context = (ComponentContextExt)component.getComponentContext(); + return context.getCompositeActivator(); + } + return null; + } + + /** + * @return + */ + public static CompositeContext getCurrentCompositeContext() { + CompositeActivator activator = getCurrentCompositeActivator(); + if (activator != null) { + return activator.getCompositeContext(); + } + return null; + } + + /** + * @param component + */ + public static ComponentService getSingleService(Component component) { + ComponentService targetService; + List<ComponentService> services = component.getServices(); + List<ComponentService> regularServices = new ArrayList<ComponentService>(); + for (ComponentService service : services) { + if (service.isCallback()) { + continue; + } + String name = service.getName(); + if (!name.startsWith("$") || name.startsWith("$dynamic$")) { + regularServices.add(service); + } + } + if (regularServices.size() == 0) { + throw new ServiceRuntimeException("No service is declared on component " + component.getURI()); + } + if (regularServices.size() != 1) { + throw new ServiceRuntimeException("More than one service is declared on component " + component.getURI() + + ". Service name is required to get the service."); + } + targetService = regularServices.get(0); + return targetService; + } + + public abstract ExtensionPointRegistry getExtensionPointRegistry(); + + public abstract ConversationManager getConversationManager(); + + /** + * Get the java interface factory + * @return + */ + public abstract JavaInterfaceFactory getJavaInterfaceFactory(); + + /** + * Get the proxy factory + * @return + */ + public abstract ProxyFactory getProxyFactory(); + +} |