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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.binding.sca.axis2.impl;
import java.util.logging.Logger;
import org.apache.tuscany.sca.invocation.Interceptor;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.runtime.EndpointReference;
import org.osoa.sca.ServiceUnavailableException;
/**
* A wrapper for the Axis2BindingInvoker that ensures that the URL of the target
* service is correct by looking it up in the service registry if it is not provided
*
* @version $Rev: 563772 $ $Date: 2007-08-08 07:50:49 +0100 (Wed, 08 Aug 2007) $
*/
public class Axis2SCABindingInvoker implements Interceptor {
private static final Logger logger = Logger.getLogger(Axis2SCABindingInvoker.class.getName());
private Invoker axis2Invoker;
private Axis2SCAReferenceBindingProvider provider;
public Axis2SCABindingInvoker(Axis2SCAReferenceBindingProvider provider, Invoker axis2Invoker) {
this.axis2Invoker = axis2Invoker;
this.provider = provider;
}
public void setNext(Invoker next) {
}
public Invoker getNext() {
return null;
}
/**
* Fix up the URL for the message. The "to" EndPoint comes from the wire
* target and needs to be replaced with the endpoint from the registry.
* The default URL for an Endpoint URI where there is no
* target component or service information, as in the case of a
* wire crossing a node boundary, is "/"
*/
public Message invoke(Message msg) {
// make sure that the epr of the target service is set in the TO
// field of the message
EndpointReference to = msg.getTo();
// check to see if we either don't have an endpoint set or if the URI
// is dynamic or the target service is marked as unresolved
if ((to == null) || (to.getURI().equals("/") || (to.getContract() == null) || (to.getContract().isUnresolved()))) {
EndpointReference eprTo = provider.getServiceEndpoint();
if ( (eprTo == null) || (eprTo.getURI() == null)) {
throw new ServiceUnavailableException("Endpoint for service: " + provider.getSCABinding().getURI()
+ " can't be found for component: "
+ provider.getComponent().getName()
+ " reference: "
+ provider.getComponentReference().getName());
}
msg.setTo(eprTo);
}
// make sure that the epr of the callback service (if there is one) is set
// in the callbackReference field of the message.
EndpointReference callbackEPR = msg.getFrom().getReferenceParameters().getCallbackReference();
if ((callbackEPR == null) || (callbackEPR.getURI().equals("/"))) {
callbackEPR = provider.getCallbackEndpoint();
if (callbackEPR != null) {
msg.getFrom().getReferenceParameters().setCallbackReference(callbackEPR);
}
}
// do the axis2 stuff
return axis2Invoker.invoke(msg);
}
}
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