/*
 *  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.endpoints;

import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.synapse.endpoints.Endpoint;
import org.apache.synapse.endpoints.FailoverEndpoint;
import org.apache.synapse.SynapseException;
import org.apache.synapse.SynapseConstants;

import java.util.List;

/**
 * Serializes {@link FailoverEndpoint} to XML configuration.
 *
 * &lt;endpoint [name="name"]&gt;
 *    &lt;failover&gt;
 *       &lt;endpoint&gt;+
 *    &lt;/failover&gt;
 * &lt;/endpoint&gt;
 */
public class FailoverEndpointSerializer extends EndpointSerializer {

    protected OMElement serializeEndpoint(Endpoint endpoint) {

        if (!(endpoint instanceof FailoverEndpoint)) {
            throw new SynapseException("Invalid endpoint type.");
        }

        FailoverEndpoint failoverEndpoint = (FailoverEndpoint) endpoint;

        fac = OMAbstractFactory.getOMFactory();
        OMElement endpointElement = fac.createOMElement("endpoint", SynapseConstants.SYNAPSE_OMNAMESPACE);

        OMElement failoverElement = fac.createOMElement("failover", SynapseConstants.SYNAPSE_OMNAMESPACE);
        endpointElement.addChild(failoverElement);

        String name = failoverEndpoint.getName();
        if (name != null) {
            endpointElement.addAttribute("name", name, null);
        }

        for (Endpoint childEndpoint : failoverEndpoint.getEndpoints()) {
            failoverElement.addChild(EndpointSerializer.getElementFromEndpoint(childEndpoint));
        }

        return endpointElement;
    }
}
