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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.invocation;
import java.lang.reflect.InvocationTargetException;
import org.apache.tuscany.sca.assembly.Endpoint;
import org.apache.tuscany.sca.assembly.EndpointReference;
import org.apache.tuscany.sca.context.ThreadMessageContext;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.InvocationChain;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.invocation.MessageFactory;
import org.apache.tuscany.sca.runtime.Invocable;
/**
* Invoker for a endpoint or endpoint reference
* @version $Rev$ $Date$
*/
public class RuntimeInvoker implements Invoker {
protected MessageFactory messageFactory;
protected Invocable invocable;
public RuntimeInvoker(MessageFactory messageFactory, Invocable invocable) {
this.messageFactory = messageFactory;
this.invocable = invocable;
}
public Message invokeBinding(Message msg) {
Message context = ThreadMessageContext.setMessageContext(msg);
try {
return invocable.getBindingInvocationChain().getHeadInvoker().invoke(msg);
} finally {
ThreadMessageContext.setMessageContext(context);
}
}
public Message invoke(Message msg) {
return invoke(msg.getOperation(), msg);
}
public Object invoke(Operation operation, Object[] args) throws InvocationTargetException {
Message msg = messageFactory.createMessage();
msg.setBody(args);
Message resp = invoke(operation, msg);
Object body = resp.getBody();
if (resp.isFault()) {
throw new InvocationTargetException((Throwable)body);
}
return body;
}
public Message invoke(Operation operation, Message msg) {
InvocationChain chain = invocable.getInvocationChain(operation);
return invoke(chain, msg);
}
public Message invoke(InvocationChain chain, Message msg) {
if (invocable instanceof Endpoint) {
msg.setTo((Endpoint)invocable);
} else if (invocable instanceof EndpointReference) {
msg.setFrom((EndpointReference)invocable);
}
Invoker headInvoker = chain.getHeadInvoker();
Operation operation = chain.getTargetOperation();
msg.setOperation(operation);
Message msgContext = ThreadMessageContext.setMessageContext(msg);
try {
return headInvoker.invoke(msg);
} finally {
ThreadMessageContext.setMessageContext(msgContext);
}
}
}
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