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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.binding.jms;
import java.io.Serializable;
import java.io.StringReader;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.ObjectMessage;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.impl.builder.StAXOMBuilder;
public class DefaultOperationAndDataBinding implements OperationAndDataBinding {
protected String operationPropertyName;
private boolean xmlFormat;
public DefaultOperationAndDataBinding(JMSBindingDefinition jmsBinding) {
this.operationPropertyName = jmsBinding.getOperationSelectorPropertyName();
this.xmlFormat = jmsBinding.isXMLFormat();
}
/*
* (non-Javadoc)
*
* @see org.apache.tuscany.binding.jms.OperationAndDataBinding#getOperationName(javax.jms.Message)
*/
public String getOperationName(Message message) {
try {
return message.getStringProperty(operationPropertyName);
} catch (JMSException e) {
throw new JMSBindingException("Exception retreiving operation name from message", e);
}
}
/*
* (non-Javadoc)
*
* @see org.apache.tuscany.binding.jms.OperationAndDataBinding#setOperationName(javax.jms.Message,
* java.lang.String)
*/
public void setOperationName(String operationName, Message message) {
try {
message.setStringProperty(operationPropertyName, operationName);
} catch (JMSException e) {
throw new JMSBindingException("Exception setting the operation name on message", e);
}
}
/*
* (non-Javadoc)
*
* @see org.apache.tuscany.binding.jms.OperationAndDataBinding#extractPayload(javax.jms.Session,
* java.lang.Object)
*/
public Message createJMSMessage(Session session, Object o) {
if (xmlFormat) {
return createXMLJMSMessage(session, o);
} else {
return createObjectJMSMessage(session, o);
}
}
/*
* (non-Javadoc)
*
* @see org.apache.tuscany.binding.jms.OperationAndDataBinding#extractPayload(javax.jms.Message)
*/
public Object extractPayload(Message msg) {
if (xmlFormat) {
return extractXMLPayload(msg);
} else {
return extractObjectPayload(msg);
}
}
protected Object extractXMLPayload(Message msg) {
try {
String xml = ((TextMessage)msg).getText();
XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(new StringReader(xml));
StAXOMBuilder builder = new StAXOMBuilder(reader);
OMElement omElement = builder.getDocumentElement();
return new Object[] {omElement};
} catch (XMLStreamException e) {
throw new JMSBindingException(e);
} catch (JMSException e) {
throw new JMSBindingException(e);
}
}
protected Message createXMLJMSMessage(Session session, Object o) {
try {
TextMessage message = session.createTextMessage();
if (o instanceof OMElement) {
message.setText(o.toString());
} else {
message.setText(((Object[])o)[0].toString());
}
return message;
} catch (JMSException e) {
throw new JMSBindingException(e);
}
}
protected Object extractObjectPayload(Message msg) {
try {
return ((ObjectMessage)msg).getObject();
} catch (JMSException e) {
throw new JMSBindingException(e);
}
}
protected Message createObjectJMSMessage(Session session, Object o) {
try {
ObjectMessage message = session.createObjectMessage(); // default
message.setObject((Serializable)o);
return message;
} catch (JMSException e) {
throw new JMSBindingException(e);
}
}
}
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