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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.spi.extension;
import java.lang.reflect.InvocationTargetException;
import java.util.LinkedList;
import org.apache.tuscany.spi.component.WorkContext;
import org.apache.tuscany.spi.wire.InboundWire;
import org.apache.tuscany.spi.wire.InvocationRuntimeException;
import org.apache.tuscany.spi.wire.Message;
import org.apache.tuscany.spi.wire.TargetInvoker;
/**
* The default implementation of a TargetInvoker
*
* @version $Rev$ $Date$
*/
public abstract class TargetInvokerExtension implements TargetInvoker {
protected InboundWire wire;
protected WorkContext workContext;
protected ExecutionMonitor monitor;
protected boolean cacheable;
/**
* Creates a new invoker
*
* @param wire the callback wire
* @param workContext the work context to use for setting correlation information
* @param monitor the event monitor
*/
public TargetInvokerExtension(InboundWire wire, WorkContext workContext, ExecutionMonitor monitor) {
this.wire = wire;
this.workContext = workContext;
this.monitor = monitor;
}
public Message invoke(Message msg) throws InvocationRuntimeException {
try {
Object messageId = msg.getMessageId();
if (messageId != null) {
workContext.setCurrentCorrelationId(messageId);
}
if (wire != null) {
LinkedList<Object> callbackRoutingChain = msg.getCallbackRoutingChain();
if (callbackRoutingChain != null) {
workContext.setCurrentCallbackRoutingChain(callbackRoutingChain);
}
}
Object resp = invokeTarget(msg.getBody(), msg.getConversationSequence());
msg.setBody(resp);
} catch (InvocationTargetException e) {
msg.setBodyWithFault(e.getCause());
}
return msg;
}
public boolean isCacheable() {
return cacheable;
}
public void setCacheable(boolean cacheable) {
this.cacheable = cacheable;
}
public boolean isOptimizable() {
return isCacheable();
}
public Object clone() throws CloneNotSupportedException {
try {
return super.clone();
} catch (CloneNotSupportedException e) {
// TargetInvoker extends Cloneable so this should not have been thrown
throw new AssertionError(e);
}
}
}
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