/*
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* Licensed 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.switchyard.quickstarts.demo.policy.security.cert;
import java.io.StringReader;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.stream.StreamSource;
import org.switchyard.annotations.Transformer;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
/**
* @author David Ward <<a href="mailto:dward@jboss.org">dward@jboss.org</a>> © 2012 Red Hat Inc.
*/
public class Transformers {
@Transformer(from = "{urn:switchyard-quickstart-demo:policy-security-cert:0.1.0}doWork")
public Work transform(Element from) {
Work work = new Work();
work.setCommand(getElementValue(from, "command"));
return work;
}
@Transformer(to = "{urn:switchyard-quickstart-demo:policy-security-cert:0.1.0}doWorkResponse")
public Element transformToElement(WorkAck workAck) {
StringBuilder ackXml = new StringBuilder()
.append("<policy-security-cert:doWorkResponse xmlns:policy-security-cert=\"urn:switchyard-quickstart-demo:policy-security-cert:0.1.0\">")
.append("<workAck>")
.append("<command>" + workAck.getCommand() + "</command>")
.append("<received>" + workAck.isReceived() + "</received>")
.append("</workAck>")
.append("</policy-security-cert:doWorkResponse>");
return toElement(ackXml.toString());
}
@Transformer
public Work transformToWork(WorkAck workAck) {
Work work = new Work();
work.setCommand(workAck.getCommand());
return work;
}
private String getElementValue(Element parent, String elementName) {
String value = null;
NodeList nodes = parent.getElementsByTagName(elementName);
if (nodes.getLength() > 0) {
value = nodes.item(0).getChildNodes().item(0).getNodeValue();
}
return value;
}
private Element toElement(String xml) {
DOMResult dom = new DOMResult();
try {
TransformerFactory.newInstance().newTransformer().transform(new StreamSource(new StringReader(xml)), dom);
} catch (Exception e) {
e.printStackTrace();
}
return ((Document) dom.getNode()).getDocumentElement();
}
}