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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* Licensed 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.container.extension.context;
import java.util.Map;
import org.apache.tuscany.core.context.AtomicContext;
import org.apache.tuscany.core.context.CoreRuntimeException;
import org.apache.tuscany.core.context.QualifiedName;
import org.apache.tuscany.core.context.TargetException;
import org.apache.tuscany.core.context.event.InstanceCreated;
import org.apache.tuscany.core.context.impl.AbstractContext;
import org.apache.tuscany.core.wire.ProxyCreationException;
import org.apache.tuscany.core.wire.TargetWireFactory;
import org.apache.tuscany.core.wire.WireFactory;
/**
* Abstract component context.
*
*/
public abstract class AbstractComponentContext extends AbstractContext implements AtomicContext {
private Map<String, TargetWireFactory> targetProxyFactories;
public AbstractComponentContext(String name, Map<String, TargetWireFactory> targetProxyFactories) {
super(name);
this.targetProxyFactories = targetProxyFactories;
}
public Object getInstance(QualifiedName qName) throws TargetException {
return getInstance(qName, true);
}
/**
* Init method.
*/
public void init() throws TargetException {
}
/**
* Detsroy method.
*/
public void destroy() throws TargetException {
}
private synchronized Object getInstance(QualifiedName qName, boolean notify) throws TargetException {
String portName = qName.getPortName();
WireFactory targetFactory;
if (portName != null) {
targetFactory = targetProxyFactories.get(portName);
} else {
targetFactory = targetProxyFactories.values().iterator().next();
}
if (targetFactory == null) {
TargetException e = new TargetException("Target service not found");
e.setIdentifier(qName.getPortName());
e.addContextName(getName());
throw e;
}
try {
Object proxy = targetFactory.createProxy();
if (notify) {
publish(new InstanceCreated(this));
}
return proxy;
} catch (ProxyCreationException e) {
TargetException te = new TargetException("Error returning target", e);
e.setIdentifier(qName.getPortName());
e.addContextName(getName());
throw te;
}
}
/**
* Whether this context supports eager init.
*/
public boolean isEagerInit() {
return false;
}
/**
* Whether this context is destroyable.
*/
public boolean isDestroyable() {
return false;
}
/**
* Starts the context.
*/
public void start() throws CoreRuntimeException {
}
/**
* Stops the context.
*/
public void stop() throws CoreRuntimeException {
}
}
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