/*
* 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.synapse.config.xml;
import org.apache.axiom.om.OMAttribute;
import org.apache.axiom.om.OMElement;
import org.apache.synapse.Mediator;
import org.apache.synapse.mediators.transform.XSLTMediator;
import org.jaxen.JaxenException;
import javax.xml.namespace.QName;
import java.util.Map;
import java.util.Properties;
/**
* Factory for {@link XSLTMediator} instances.
* <p>
* Configuration syntax:
* <pre>
* <xslt key="property-key" [source="xpath"] [target="string"]>
* <property name="string" (value="literal" | expression="xpath")/>*
* <feature name="string" value="true| false" />*
* <attribute name="string" value="string" />*
* <resource location="..." key="..."/>*
* </transform>
* </pre>
*/
public class XSLTMediatorFactory extends AbstractMediatorFactory {
private static final QName TAG_NAME
= new QName(XMLConfigConstants.SYNAPSE_NAMESPACE, "xslt");
private static final QName ATTRIBUTE_Q
= new QName(XMLConfigConstants.SYNAPSE_NAMESPACE, "attribute");
public QName getTagQName() {
return TAG_NAME;
}
protected Mediator createSpecificMediator(OMElement elem, Properties properties) {
XSLTMediator transformMediator = new XSLTMediator();
OMAttribute attXslt = elem.getAttribute(ATT_KEY);
OMAttribute attSource = elem.getAttribute(ATT_SOURCE);
OMAttribute attTarget = elem.getAttribute(ATT_TARGET);
if (attXslt != null) {
transformMediator.setXsltKey(attXslt.getAttributeValue());
} else {
handleException("The 'key' attribute is required for the XSLT mediator");
}
if (attSource != null) {
try {
transformMediator.setSourceXPathString(attSource.getAttributeValue());
transformMediator.setSource(SynapseXPathFactory.getSynapseXPath(elem, ATT_SOURCE));
} catch (JaxenException e) {
handleException("Invalid XPath specified for the source attribute : " +
attSource.getAttributeValue());
}
}
if (attTarget != null) {
transformMediator.setTargetPropertyName(attTarget.getAttributeValue());
}
// after successfully creating the mediator
// set its common attributes such as tracing etc
processAuditStatus(transformMediator, elem);
// set the features
for (Map.Entry<String,String> entry : collectNameValuePairs(elem, FEATURE_Q).entrySet()) {
String value = entry.getValue();
boolean isFeatureEnabled;
if ("true".equals(value)) {
isFeatureEnabled = true;
} else if ("false".equals(value)) {
isFeatureEnabled = false;
} else {
handleException("The feature must have value true or false");
break;
}
transformMediator.addFeature(entry.getKey(), isFeatureEnabled);
}
for (Map.Entry<String,String> entry : collectNameValuePairs(elem, ATTRIBUTE_Q).entrySet()) {
transformMediator.addAttribute(entry.getKey(), entry.getValue());
}
transformMediator.addAllProperties(
MediatorPropertyFactory.getMediatorProperties(elem));
transformMediator.setResourceMap(ResourceMapFactory.createResourceMap(elem));
return transformMediator;
}
}