Java tutorial
/* * $Id$ * -------------------------------------------------------------------------------------- * Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com * * The software in this package is published under the terms of the CPAL v1.0 * license, a copy of which has been included with this distribution in the * LICENSE.txt file. */ package org.mule.module.cxf; import org.mule.api.MuleEvent; import org.mule.api.config.MuleProperties; import org.mule.api.transport.PropertyScope; import java.util.Iterator; import javax.xml.soap.Name; import javax.xml.soap.SOAPElement; import javax.xml.soap.SOAPEnvelope; import javax.xml.soap.SOAPException; import javax.xml.soap.SOAPHeader; import javax.xml.soap.SOAPHeaderElement; import org.dom4j.Namespace; import org.dom4j.QName; import org.dom4j.dom.DOMElement; import org.w3c.dom.Element; import org.w3c.dom.Node; /** * <code>MuleSoapHeaders</code> is a helper class for extracting and writing Mule * header properties to s Soap message */ public class MuleSoapHeaders { private String replyTo; private String correlationId; private String correlationGroup; private String correlationSequence; public static final String MULE_10_ACTOR = "http://www.muleumo.org/providers/soap/1.0"; public static final String MULE_NAMESPACE = "mule"; public static final String MULE_HEADER = "header"; public static final String ENV_REQUEST_HEADERS = "MULE_REQUEST_HEADERS"; /** * Extracts header properties from a Mule event * * @param event */ public MuleSoapHeaders(MuleEvent event) { setCorrelationId(event.getMessage().getCorrelationId()); setCorrelationGroup(String.valueOf(event.getMessage().getCorrelationGroupSize())); setCorrelationSequence(String.valueOf(event.getMessage().getCorrelationSequence())); // only propogate the reply to header if it's in the outbound scope Object replyTo = event.getMessage().getProperty(MuleProperties.MULE_REPLY_TO_PROPERTY, PropertyScope.OUTBOUND); if (replyTo != null) { setReplyTo(replyTo.toString()); } } /** * Extracts Mule header properties from a Soap message * * @param soapHeader */ public MuleSoapHeaders(SOAPHeader soapHeader) { Iterator iter = soapHeader.examineHeaderElements(MULE_10_ACTOR); SOAPHeaderElement headerElement; while (iter.hasNext()) { headerElement = (SOAPHeaderElement) iter.next(); // checking that the elements are part of the mule namespace if (org.mule.util.StringUtils.equals(MULE_10_ACTOR, headerElement.getNamespaceURI())) { Iterator iter2 = headerElement.getChildElements(); readElements(iter2); } } } public MuleSoapHeaders(Iterator elements) { readElements(elements); } protected void readElements(Iterator elements) { SOAPElement element; while (elements.hasNext()) { Object elementObject = elements.next(); // Fixed MULE-770 (http://mule.mulesoft.org/jira/browse/MULE-770) if (elementObject instanceof SOAPElement) // if not, means that it is a value not an element, therefore we cannot // look for correlation_id ... { element = (SOAPElement) elementObject; String localName = element.getLocalName(); String elementValue = getStringValue(element); if (MuleProperties.MULE_CORRELATION_ID_PROPERTY.equals(localName)) { correlationId = elementValue; } else if (MuleProperties.MULE_CORRELATION_GROUP_SIZE_PROPERTY.equals(localName)) { correlationGroup = elementValue; } else if (MuleProperties.MULE_CORRELATION_SEQUENCE_PROPERTY.equals(localName)) { correlationSequence = elementValue; } else if (MuleProperties.MULE_REPLY_TO_PROPERTY.equals(localName)) { replyTo = elementValue; } } } } private String getStringValue(Element e) { String value = e.getNodeValue(); if (value == null && e.hasChildNodes()) { // see if the value is base64 ecoded value = e.getFirstChild().getNodeValue(); if (value != null) { // value = new String(org.apache.axis.encoding.Base64.decode(value)); } } return value; } /** * Writes the header properties to a Soap header * * @param env * @throws SOAPException */ public void addHeaders(SOAPEnvelope env) throws Exception { SOAPHeader header = env.getHeader(); SOAPHeaderElement muleHeader; if (correlationId != null || replyTo != null) { if (header == null) { header = env.addHeader(); } Name muleHeaderName = env.createName(MULE_HEADER, MULE_NAMESPACE, MULE_10_ACTOR); muleHeader = header.addHeaderElement(muleHeaderName); muleHeader.setActor(MULE_10_ACTOR); } else { return; } if (correlationId != null) { SOAPElement e = muleHeader.addChildElement(MuleProperties.MULE_CORRELATION_ID_PROPERTY, MULE_NAMESPACE); e.addTextNode(correlationId); e = muleHeader.addChildElement(MuleProperties.MULE_CORRELATION_GROUP_SIZE_PROPERTY, MULE_NAMESPACE); e.addTextNode(correlationGroup); e = muleHeader.addChildElement(MuleProperties.MULE_CORRELATION_SEQUENCE_PROPERTY, MULE_NAMESPACE); e.addTextNode(correlationSequence); } if (replyTo != null) { SOAPElement e = muleHeader.addChildElement(MuleProperties.MULE_REPLY_TO_PROPERTY, MULE_NAMESPACE); // String enc = (String)encoder.transform(replyTo); // e.addTextNode(enc); e.addTextNode(replyTo); } } public Element createHeaders() throws Exception { Element muleHeader = null; if (correlationId != null || replyTo != null) { muleHeader = new DOMElement(new QName(MULE_HEADER, new Namespace(MULE_NAMESPACE, MULE_10_ACTOR))); } else { return null; } if (correlationId != null) { Node e = muleHeader.appendChild(new DOMElement(new QName(MuleProperties.MULE_CORRELATION_ID_PROPERTY, new Namespace(MULE_NAMESPACE, MULE_10_ACTOR)))); e.setNodeValue(correlationId); e = muleHeader.appendChild(new DOMElement(new QName(MuleProperties.MULE_CORRELATION_GROUP_SIZE_PROPERTY, new Namespace(MULE_NAMESPACE, MULE_10_ACTOR)))); e.setNodeValue(correlationGroup); e = muleHeader.appendChild(new DOMElement(new QName(MuleProperties.MULE_CORRELATION_SEQUENCE_PROPERTY, new Namespace(MULE_NAMESPACE, MULE_10_ACTOR)))); e.setNodeValue(correlationSequence); } if (replyTo != null) { Node e = muleHeader.appendChild(new DOMElement(new QName(MuleProperties.MULE_REPLY_TO_PROPERTY, new Namespace(MULE_NAMESPACE, MULE_10_ACTOR)))); e.setNodeValue(replyTo); } return muleHeader; } public String getReplyTo() { return replyTo; } public void setReplyTo(String replyTo) { this.replyTo = replyTo; } public String getCorrelationId() { return correlationId; } public void setCorrelationId(String correlationId) { this.correlationId = correlationId; } public String getCorrelationGroup() { return correlationGroup; } public void setCorrelationGroup(String correlationGroup) { this.correlationGroup = correlationGroup; } public String getCorrelationSequence() { return correlationSequence; } public void setCorrelationSequence(String correlationSequence) { this.correlationSequence = correlationSequence; } }