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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.servicemix;
import java.lang.reflect.InvocationTargetException;
import javax.jbi.messaging.DeliveryChannel;
import javax.jbi.messaging.ExchangeStatus;
import javax.jbi.messaging.InOut;
import javax.jbi.messaging.MessagingException;
import javax.jbi.messaging.NormalizedMessage;
import javax.xml.namespace.QName;
import org.apache.servicemix.jbi.jaxp.StringSource;
import org.apache.servicemix.sca.ScaServiceUnit;
import org.apache.tuscany.spi.extension.TargetInvokerExtension;
/**
* Invoke a JBI reference.
*/
public class ServiceMixInvoker extends TargetInvokerExtension {
private QName serviceName;
private ScaServiceUnit serviceUnit;
public ServiceMixInvoker(QName serviceName) {
this.serviceName = serviceName;
this.serviceUnit = ScaServiceUnit.getCurrentScaServiceUnit();
}
public Object invokeTarget(Object payload) throws InvocationTargetException {
try {
DeliveryChannel channel = serviceUnit.getComponent().getComponentContext().getDeliveryChannel();
// TODO: in-only case ?
// TODO: interface based routing ?
// TODO: explicit endpoint selection ?
InOut inout = channel.createExchangeFactory().createInOutExchange();
inout.setService(serviceName);
NormalizedMessage in = inout.createMessage();
inout.setInMessage(in);
in.setContent(new StringSource(payload.toString()));
boolean sent = channel.sendSync(inout);
// TODO: check for error ?
NormalizedMessage out = inout.getOutMessage();
Object response = out.getContent();
inout.setStatus(ExchangeStatus.DONE);
channel.send(inout);
return response;
} catch (MessagingException e) {
throw new InvocationTargetException(e);
}
}
}
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