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/*
* 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();
}
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