1 /* 2 * $Id: ObjectToXml.java 11236 2008-03-06 23:48:23Z tcarlson $ 3 * -------------------------------------------------------------------------------------- 4 * Copyright (c) MuleSource, Inc. All rights reserved. http://www.mulesource.com 5 * 6 * The software in this package is published under the terms of the CPAL v1.0 7 * license, a copy of which has been included with this distribution in the 8 * LICENSE.txt file. 9 */ 10 11 package org.mule.module.xml.transformer; 12 13 import org.mule.api.MuleMessage; 14 import org.mule.api.transformer.TransformerException; 15 16 /** 17 * <code>ObjectToXml</code> converts any object to XML using Xstream. Xstream uses 18 * some clever tricks so objects that get marshalled to XML do not need to implement 19 * any interfaces including Serializable and you don't even need to specify a default 20 * constructor. If <code>MuleMessage</code> is configured as a source type on this 21 * transformer by calling <code>setAcceptUMOMessage(true)</code> then the MuleMessage 22 * will be serialised. This is useful for transports such as TCP where the message 23 * headers would normally be lost. 24 */ 25 26 public class ObjectToXml extends AbstractXStreamTransformer 27 { 28 29 public ObjectToXml() 30 { 31 this.registerSourceType(Object.class); 32 this.setReturnClass(String.class); 33 } 34 35 public boolean isAcceptUMOMessage() 36 { 37 return this.sourceTypes.contains(MuleMessage.class); 38 } 39 40 public void setAcceptUMOMessage(boolean value) 41 { 42 if (value) 43 { 44 this.registerSourceType(MuleMessage.class); 45 } 46 else 47 { 48 this.unregisterSourceType(MuleMessage.class); 49 } 50 } 51 52 public Object transform(MuleMessage message, String outputEncoding) throws TransformerException 53 { 54 Object src = message.getPayload(); 55 /* 56 * If the MuleMessage source type has been registered that we can assume that 57 * the whole message is to be serialised to Xml, not just the payload. This 58 * can be useful for protocols such as tcp where the protocol does not 59 * support headers, thus the whole messgae needs to be serialized 60 */ 61 if (this.isAcceptUMOMessage()) 62 { 63 src = message; 64 } 65 return this.getXStream().toXML(src); 66 } 67 }