1 files changed, 287 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M4-RC1/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/provider/DefaultMessageProcessor.java b/tags/java/sca/2.0-M4-RC1/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/provider/DefaultMessageProcessor.java
new file mode 100644
index 0000000000..4b82f2155d
--- /dev/null
+++ b/tags/java/sca/2.0-M4-RC1/modules/binding-jms-runtime/src/main/java/org/apache/tuscany/sca/binding/jms/provider/DefaultMessageProcessor.java
@@ -0,0 +1,287 @@
+/*
+ * 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.provider;
+
+import java.io.ByteArrayInputStream;
+import java.io.StringReader;
+import java.util.logging.Logger;
+
+import javax.jms.BytesMessage;
+import javax.jms.JMSException;
+import javax.jms.Message;
+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.OMNode;
+import org.apache.axiom.om.impl.builder.StAXOMBuilder;
+import org.apache.tuscany.sca.binding.jms.JMSBinding;
+import org.apache.tuscany.sca.binding.jms.JMSBindingConstants;
+import org.apache.tuscany.sca.binding.jms.JMSBindingException;
+import org.apache.tuscany.sca.interfacedef.util.FaultException;
+
+/**
+ * MessageProcessor for sending/receiving XML over javax.jms.TextMessage or javax.jms.BytesMessage 
+ * with the JMSBinding.
+ * This is very specific to the default wire format and is not tied into the usual hierarchy
+ * of message processors
+ * 
+ * @version $Rev$ $Date$
+ */
+public class DefaultMessageProcessor extends AbstractMessageProcessor {
+    private static final Logger logger = Logger.getLogger(DefaultMessageProcessor.class.getName());
+
+    public DefaultMessageProcessor(JMSBinding jmsBinding) {
+        super(jmsBinding);
+    }
+    
+    // inherited methods that don't do anything useful
+    @Override
+    protected Message createJMSMessage(Session session, Object o) {
+        // should not be used
+        return null;
+    }
+    
+    @Override
+    protected Object extractPayload(Message msg) {
+        // if it's not a text/bytes message or a fault then we don;t know what to do with it
+        return null;
+    }
+    
+    // TODO - This makes the assumption that whatever the text/bytes configuration of the
+    //        jms binding, unchecked faults will be sent as bytes. 
+    @Override
+    public Message createFaultMessage(Session session, Throwable o) {
+        return createFaultJMSBytesMessage(session, o);
+    }
+    
+    // handle text messages
+    
+    public Object extractPayloadFromJMSTextMessage(Message msg, OMElement wrapper) {
+        if (msg instanceof TextMessage) {
+            try {
+                String xml = ((TextMessage) msg).getText();
+                Object os;
+                if (xml != null) {
+                    XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(new StringReader(xml));
+                    StAXOMBuilder builder = new StAXOMBuilder(reader);
+                    os = builder.getDocumentElement();
+                } else {
+                    os = null;
+                }
+                
+                if (wrapper != null){
+                    //don't modify the original wrapper since it will be reused
+                    //clone the wrapper
+                    OMElement newWrapper = wrapper.cloneOMElement();
+                    if (os != null){
+                        newWrapper.addChild((OMNode)os);
+                    }
+                    return newWrapper;
+                }
+                
+                return os;
+    
+            } catch (XMLStreamException e) {
+                throw new JMSBindingException(e);
+            } catch (JMSException e) {
+                throw new JMSBindingException(e);
+            }
+        } else {
+            // handle the non-text fault case
+            return super.extractPayloadFromJMSMessage(msg);
+        }
+    }
+    
+    public Message insertPayloadIntoJMSTextMessage(Session session, Object o, boolean unwrap) {
+
+        try {
+
+            TextMessage message = session.createTextMessage();
+
+            if (o instanceof OMElement) {
+                
+                if (unwrap){
+                    OMElement firstElement = ((OMElement)o).getFirstElement();
+                    if (firstElement == null ) {
+                        message.setText(null);
+                    } else {
+                        message.setText(firstElement.toString());
+                    }
+                }else {
+                    message.setText(o.toString());
+                }
+            } else if ((o instanceof Object[]) && ((Object[]) o)[0] instanceof OMElement) {
+                if (unwrap){
+                    OMElement firstElement = ((OMElement)((Object[]) o)[0]).getFirstElement();
+                    if (firstElement == null ) {
+                        message.setText(null);
+                    } else {
+                        message.setText(firstElement.toString());
+                    }
+                }else {
+                    message.setText(((Object[]) o)[0].toString());
+                }
+            } else if (o != null) {
+                throw new IllegalStateException("expecting OMElement payload: " + o);
+            }
+
+            return message;
+
+        } catch (JMSException e) {
+            throw new JMSBindingException(e);
+        }
+    }
+
+    public Message createFaultJMSTextMessage(Session session, Throwable o) {
+
+        if (session == null) {
+            logger.fine("no response session to create fault message: " + String.valueOf(o));
+            return null;
+        }
+        if (o instanceof FaultException) {
+            try {
+
+                TextMessage message = session.createTextMessage();
+                message.setText(String.valueOf(((FaultException) o).getFaultInfo()));
+                message.setBooleanProperty(JMSBindingConstants.FAULT_PROPERTY, true);
+                return message;
+
+            } catch (JMSException e) {
+                throw new JMSBindingException(e);
+            }
+        } else {
+            // handle the non XML fault case
+            return super.createFaultMessage(session, o);
+        }
+    }
+
+    // handle bytes messages
+    
+    public Object extractPayloadFromJMSBytesMessage(Message msg, OMElement wrapper) {
+        
+        if (msg instanceof BytesMessage) {        
+            try {
+                Object os;
+    
+                long noOfBytes = ((BytesMessage) msg).getBodyLength();
+                byte[] bytes = new byte[(int) noOfBytes];
+                ((BytesMessage) msg).readBytes(bytes);
+                ((BytesMessage)msg).reset();
+
+                if ((bytes != null) && (bytes.length > 0)) {
+                    XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(new ByteArrayInputStream(bytes));
+                    StAXOMBuilder builder = new StAXOMBuilder(reader);
+                    os = builder.getDocumentElement();
+                } else {
+                    os = null;
+                }
+                
+                if (wrapper != null){
+                    //don't modify the original wrapper since it will be reused
+                    //clone the wrapper
+                    OMElement newWrapper = wrapper.cloneOMElement();
+                    if (os != null){
+                        newWrapper.addChild((OMNode)os);
+                    } 
+                    return newWrapper;
+                }
+                
+                return os;
+    
+            } catch (XMLStreamException e) {
+                throw new JMSBindingException(e);
+            } catch (JMSException e) {
+                throw new JMSBindingException(e);
+            }
+        } else {
+            // trap the non-bytes fault case
+            return super.extractPayloadFromJMSMessage(msg);
+        }
+    }
+    
+    public Message insertPayloadIntoJMSBytesMessage(Session session, Object o, boolean unwrap) {
+
+        try {
+
+            BytesMessage message = session.createBytesMessage();
+            
+
+            if (o instanceof OMElement) {
+                if (unwrap) {
+                    OMElement firstElement = ((OMElement)o).getFirstElement();
+                    if (firstElement == null ) {
+                        //do nothing, the message will just be set with a byte[0]
+                    } else {
+                        message.writeBytes(firstElement.toString().getBytes());
+                    }
+
+                } else {
+                    message.writeBytes(o.toString().getBytes());                    
+                }
+
+            } else if ((o instanceof Object[]) && ((Object[]) o)[0] instanceof OMElement) {
+                if (unwrap){
+                    OMElement firstElement = ((OMElement)((Object[]) o)[0]).getFirstElement();
+                    if (firstElement == null ) {
+                        //do nothing, the message will just be set with a byte[0]
+                    } else {
+                        message.writeBytes(firstElement.toString().getBytes());
+                    }
+
+                }else {
+                    message.writeBytes(((Object[]) o)[0].toString().getBytes());
+                }
+            } else if (o != null) {
+                throw new IllegalStateException("expecting OMElement payload: " + o);
+            }
+
+            return message;
+
+        } catch (JMSException e) {
+            throw new JMSBindingException(e);
+        }
+    }
+    
+    public Message createFaultJMSBytesMessage(Session session, Throwable o) {
+
+        if (session == null) {
+            logger.fine("no response session to create fault message: " + String.valueOf(o));
+            return null;
+        }
+        
+        if (o instanceof FaultException) {
+            try {
+
+                BytesMessage message = session.createBytesMessage();
+                message.writeBytes(String.valueOf(((FaultException) o).getFaultInfo()).getBytes());
+                message.setBooleanProperty(JMSBindingConstants.FAULT_PROPERTY, true);
+                return message;
+
+            } catch (JMSException e) {
+                throw new JMSBindingException(e);
+            }
+        } else {
+            return super.createFaultMessage(session, o);
+        }
+    }    
+}