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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.jms.operationselector.jmsdefault.runtime;
import java.io.IOException;
import java.util.List;
import javax.jms.BytesMessage;
import javax.jms.JMSException;
import javax.jms.TextMessage;
import org.apache.tuscany.sca.binding.jms.JMSBinding;
import org.apache.tuscany.sca.binding.jms.JMSBindingException;
import org.apache.tuscany.sca.binding.jms.context.JMSBindingContext;
import org.apache.tuscany.sca.binding.jms.provider.JMSMessageProcessor;
import org.apache.tuscany.sca.binding.jms.provider.JMSMessageProcessorUtil;
import org.apache.tuscany.sca.binding.jms.provider.JMSResourceFactory;
import org.apache.tuscany.sca.binding.jms.provider.xml.XMLHelper;
import org.apache.tuscany.sca.binding.jms.provider.xml.XMLHelperFactory;
import org.apache.tuscany.sca.binding.jms.wireformat.WireFormatJMSBytesXML;
import org.apache.tuscany.sca.binding.jms.wireformat.WireFormatJMSDefault;
import org.apache.tuscany.sca.binding.jms.wireformat.WireFormatJMSTextXML;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.invocation.InterceptorAsyncImpl;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.runtime.RuntimeComponentService;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
/**
* Policy handler to handle PolicySet related to Logging with the QName
* {http://tuscany.apache.org/xmlns/sca/1.1/impl/java}LoggingPolicy
*
* @version $Rev$ $Date$
*/
public class OperationSelectorJMSDefaultServiceInterceptor extends InterceptorAsyncImpl {
private static final String ON_MESSAGE_METHOD_NAME = "onMessage";
private Invoker next;
private RuntimeEndpoint endpint;
private JMSResourceFactory jmsResourceFactory;
private JMSBinding jmsBinding;
private JMSMessageProcessor requestMessageProcessor;
private JMSMessageProcessor responseMessageProcessor;
private RuntimeComponentService service;
private List<Operation> serviceOperations;
private XMLHelper xmlHelper;
public OperationSelectorJMSDefaultServiceInterceptor(ExtensionPointRegistry registry, JMSResourceFactory jmsResourceFactory, RuntimeEndpoint endpoint) {
super();
this.endpint = endpoint;
this.jmsBinding = (JMSBinding) endpoint.getBinding();
this.jmsResourceFactory = jmsResourceFactory;
this.requestMessageProcessor = JMSMessageProcessorUtil.getRequestMessageProcessor(registry, jmsBinding);
this.responseMessageProcessor = JMSMessageProcessorUtil.getResponseMessageProcessor(registry, jmsBinding);
this.service = (RuntimeComponentService)endpoint.getService();
this.serviceOperations = service.getInterfaceContract().getInterface().getOperations();
this.xmlHelper = XMLHelperFactory.createXMLHelper(registry);
}
public Message invoke(Message msg) {
return next.invoke(invokeRequest(msg));
}
public Message invokeRequest(Message msg) {
// get the jms context
JMSBindingContext context = msg.getBindingContext();
javax.jms.Message jmsMsg = context.getJmsMsg();
String operationName = requestMessageProcessor.getOperationName(jmsMsg);
Operation operation = getTargetOperation(operationName, jmsMsg);
msg.setOperation(operation);
return msg;
}
protected Operation getTargetOperation(String operationName, javax.jms.Message jmsMsg) {
Operation operation = null;
if (serviceOperations.size() == 1) {
// SCA JMS Binding Specification - Rule 1.5.1 line 203
operation = serviceOperations.get(0);
} else if (operationName != null) {
// SCA JMS Binding Specification - Rule 1.5.1 line 205
for (Operation op : serviceOperations) {
if (op.getName().equals(operationName)) {
operation = op;
break;
} else {
String nativeName = jmsBinding.getNativeOperationName(op.getName());
if (( nativeName != null ) && ( nativeName.equals(operationName)) ) {
operation = op;
break;
}
}
}
} else if (jmsBinding.getRequestWireFormat() instanceof WireFormatJMSDefault
|| jmsBinding.getRequestWireFormat() instanceof WireFormatJMSTextXML
|| jmsBinding.getRequestWireFormat() instanceof WireFormatJMSBytesXML) {
String operationFromPayload;
try {
if (jmsMsg instanceof TextMessage) {
String xmlPayload = ((TextMessage) jmsMsg).getText();
if (xmlPayload != null) {
Object rootElement = xmlHelper.load(xmlPayload);
operationFromPayload = xmlHelper.getOperationName(rootElement);
if (operationFromPayload != null) {
for (Operation op : serviceOperations) {
if (op.getName().equals(operationFromPayload)) {
operation = op;
break;
}
}
}
}
} else if (jmsMsg instanceof BytesMessage) {
long noOfBytes = ((BytesMessage) jmsMsg).getBodyLength();
byte[] bytes = new byte[(int) noOfBytes];
((BytesMessage) jmsMsg).readBytes(bytes);
((BytesMessage) jmsMsg).reset();
if (bytes != null) {
Object rootElement = xmlHelper.load(new String(bytes));
operationFromPayload = xmlHelper.getOperationName(rootElement);
if (operationFromPayload != null) {
for (Operation op : serviceOperations) {
if (op.getName().equals(operationFromPayload)) {
operation = op;
break;
}
}
}
}
}
} catch (IOException e) {
//let's ignore this in case the client doesn't want to use a wrapped xml message
} catch (JMSException e) {
throw new JMSBindingException(e);
}
// If operation is still null we attempt the last rule
if (operation == null) {
// SCA JMS Binding Specification - Rule 1.5.1 line 207
for (Operation op : serviceOperations) {
if (op.getName().equals(ON_MESSAGE_METHOD_NAME)) {
operation = op;
break;
}
}
}
}
if (operation == null) {
throw new JMSBindingException("Cannot determine service operation");
}
return operation;
}
public Invoker getNext() {
return next;
}
public void setNext(Invoker next) {
this.next = next;
}
public Message processRequest(Message msg) {
return invokeRequest(msg);
} // end method processRequest
public Message processResponse(Message msg) {
return msg;
} // end method processResponse
}
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