/*
* 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.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.SynapseException;
import org.apache.synapse.Mediator;
import org.apache.synapse.mediators.filters.FilterMediator;
/**
* <pre>
* <filter (source="xpath" regex="string") | xpath="xpath">
* mediator+
* </filter>
* </pre>
*/
public class FilterMediatorSerializer extends AbstractListMediatorSerializer
{
private static final Log log = LogFactory.getLog(FilterMediatorSerializer.class);
public OMElement serializeMediator(OMElement parent, Mediator m) {
if (!(m instanceof FilterMediator)) {
handleException("Unsupported mediator passed in for serialization : " + m.getType());
}
FilterMediator mediator = (FilterMediator) m;
OMElement filter = fac.createOMElement("filter", synNS);
if (mediator.getSource() != null && mediator.getRegex() != null) {
filter.addAttribute(fac.createOMAttribute(
"source", nullNS, mediator.getSource().toString()));
super.serializeNamespaces(filter, mediator.getSource());
filter.addAttribute(fac.createOMAttribute(
"regex", nullNS, mediator.getRegex().pattern()));
} else if (mediator.getXpath() != null) {
filter.addAttribute(fac.createOMAttribute(
"xpath", nullNS, mediator.getXpath().toString()));
super.serializeNamespaces(filter, mediator.getXpath());
} else {
handleException("Invalid filter mediator. " +
"Should have either a 'source' and a 'regex' OR an 'xpath' ");
}
finalizeSerialization(filter, mediator);
super.serializeChildren(filter, mediator.getList());
if (parent != null) {
parent.addChild(filter);
}
return filter;
}
public String getMediatorClassName() {
return FilterMediator.class.getName();
}
private void handleException(String msg) {
log.error(msg);
throw new SynapseException(msg);
}
}