/*
* 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.binding.ejb;
import org.apache.tuscany.sca.binding.ejb.util.EJBHandler;
import org.apache.tuscany.sca.binding.ejb.util.NamingEndpoint;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
/**
* EJBTargetInvoker
*/
public class EJBTargetInvoker implements Invoker {
private Operation operation;
private String location;
private Class serviceInterface;
public EJBTargetInvoker(EJBBinding ejbBinding, Class serviceInterface, Operation operation) {
this.serviceInterface = serviceInterface;
this.location = ejbBinding.getUri();
this.operation = operation;
}
public Message invoke(Message msg) {
try {
Object resp = doInvoke(msg.getBody());
msg.setBody(resp);
} catch (Throwable e) {
e.printStackTrace();
msg.setFaultBody(e);
}
return msg;
}
/**
* Invoke a EJB operation
*
* @param payload
* @return
*/
public Object doInvoke(final Object payload) {
// construct NamingendPoint
NamingEndpoint endpoint = getNamingEndpoint();
// lookup home and ejb stub
EJBHandler ejbHandler = new EJBHandler(endpoint, serviceInterface);
String methodName = operation.getName();
// invoke business method on ejb
Object response = ejbHandler.invoke(methodName, (Object[])payload);
return response;
}
protected NamingEndpoint getNamingEndpoint() {
return new NamingEndpoint(location);
}
}