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Apache Synapse - Core
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/*
 *  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.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
import org.apache.axiom.om.OMNamespace;
import org.apache.synapse.config.xml.endpoints.EndpointSerializer;
import org.apache.synapse.mediators.eip.Target;
import org.apache.synapse.SynapseConstants;

/**
 * Serializer for {@link Target} instances.
 * 
 * @see TargetFactory
 */
public class TargetSerializer {

    /**
     * This holds the OMFactory to be used for the OMElement creations
     */
    private static final OMFactory fac = OMAbstractFactory.getOMFactory();

    /**
     * This holds the Synapse namesapce for all the elements (qualified from default)
     */
    private static final OMNamespace synNS
            = SynapseConstants.SYNAPSE_OMNAMESPACE;

    /**
     * This holds the null namespace for all the attributes (unqualified from default)
     */
    private static final OMNamespace nullNS = fac.createOMNamespace(XMLConfigConstants.NULL_NAMESPACE, "");

    /**
     * This static method will serialize the Target object to the target elements
     *
     * @param target - Target which is subjected to the serialization
     * @return OMElement representing the serialized Target
     */
    public static OMElement serializeTarget(Target target) {

        OMElement targetElem = fac.createOMElement("target", synNS);
        if (target.getToAddress() != null) {
            targetElem.addAttribute("to", target.getToAddress(), nullNS);
        }

        if (target.getSoapAction() != null) {
            targetElem.addAttribute("soapAction", target.getSoapAction(), nullNS);
        }

        if (target.getSequenceRef() != null) {
            targetElem.addAttribute("sequence", target.getSequenceRef(), nullNS);
        }

        if (target.getEndpointRef() != null) {
            targetElem.addAttribute("endpoint", target.getEndpointRef(), nullNS);
        }        

        if (target.getSequence() != null) {
            SequenceMediatorSerializer serializer = new SequenceMediatorSerializer();
            serializer.serializeAnonymousSequence(targetElem, target.getSequence());
        }

        if (target.getEndpoint() != null) {
            targetElem.addChild(EndpointSerializer.getElementFromEndpoint(target.getEndpoint()));
        }

        return targetElem;
    }
}