/*
* 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.OMElement;
import org.apache.synapse.Mediator;
import org.apache.synapse.mediators.transform.HeaderMediator;
import javax.xml.namespace.QName;
/**
* Serializer for {@link HeaderMediator} instances.
*
* @see HeaderMediatorFactory
*/
public class HeaderMediatorSerializer extends AbstractMediatorSerializer {
protected OMElement serializeSpecificMediator(Mediator m) {
if (!(m instanceof HeaderMediator)) {
handleException("Unsupported mediator passed in for serialization : " + m.getType());
}
HeaderMediator mediator = (HeaderMediator) m;
OMElement header = fac.createOMElement("header", synNS);
saveTracingState(header,mediator);
QName qName = mediator.getQName();
if (qName != null) {
if (qName.getNamespaceURI() != null) {
header.addAttribute(fac.createOMAttribute(
"name", nullNS,
(qName.getPrefix() != null && !"".equals(qName.getPrefix())
? qName.getPrefix() + ":" : "") +
qName.getLocalPart()));
header.declareNamespace(qName.getNamespaceURI(), qName.getPrefix());
} else {
header.addAttribute(fac.createOMAttribute(
"name", nullNS, qName.getLocalPart()));
}
}
if (mediator.getAction() == HeaderMediator.ACTION_REMOVE) {
header.addAttribute(fac.createOMAttribute(
"action", nullNS, "remove"));
} else {
if (mediator.getValue() != null) {
header.addAttribute(fac.createOMAttribute(
"value", nullNS, mediator.getValue()));
} else if (mediator.getExpression() != null) {
SynapseXPathSerializer.serializeXPath(
mediator.getExpression(), header, "expression");
} else {
handleException("Value or expression required for a set header mediator");
}
}
return header;
}
public String getMediatorClassName() {
return HeaderMediator.class.getName();
}
}