/*
 *  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.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.endpoints.DefaultEndpoint;
import org.apache.synapse.endpoints.Endpoint;
import org.apache.synapse.endpoints.EndpointDefinition;

/**
 * Serializes {@link DefaultEndpoint} to XML.
 *
 * @see DefaultEndpointFactory
 */
public class DefaultEndpointSerializer extends EndpointSerializer {

    protected OMElement serializeEndpoint(Endpoint endpoint) {

        if (!(endpoint instanceof DefaultEndpoint)) {
            handleException("Invalid endpoint type.");
        }

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

        DefaultEndpoint defaultEndpoint = (DefaultEndpoint) endpoint;

        serializeCommonAttributes(defaultEndpoint,endpointElement);
        
        EndpointDefinition epAddress = defaultEndpoint.getDefinition();
        OMElement defaultElement = serializeEndpointDefinition(epAddress);
        endpointElement.addChild(defaultElement);

        // serialize the properties
        serializeProperties(defaultEndpoint, endpointElement);

        return endpointElement;
    }

    @Override
    protected void serializeSpecificEndpointProperties(EndpointDefinition endpointDefinition,
        OMElement element) {

        if (SynapseConstants.FORMAT_POX.equals(endpointDefinition.getFormat())) {
            element.addAttribute(fac.createOMAttribute("format", null, "pox"));
        } else if (SynapseConstants.FORMAT_GET.equals(endpointDefinition.getFormat())) {
            element.addAttribute(fac.createOMAttribute("format", null, "get"));
        } else if (SynapseConstants.FORMAT_SOAP11.equals(endpointDefinition.getFormat())) {
            element.addAttribute(fac.createOMAttribute("format", null, "soap11"));
        } else if (SynapseConstants.FORMAT_SOAP12.equals(endpointDefinition.getFormat())) {
            element.addAttribute(fac.createOMAttribute("format", null, "soap12"));
        } else if (SynapseConstants.ADDRESS_ENDPOINT_FORMAT_REST.equals(endpointDefinition.getFormat())) {
            // To support integration studio address endpoints with format 'rest'
            element.addAttribute(fac.createOMAttribute("format", null, "rest"));
        } else if (SynapseConstants.FORMAT_REST.equals(endpointDefinition.getFormat())) {
            element.addAttribute(fac.createOMAttribute("format", null, "api"));

            // following two kept for backward compatibility
        } else if (endpointDefinition.isForcePOX()) {
            element.addAttribute(fac.createOMAttribute("format", null, "pox"));
        } else if (endpointDefinition.isForceGET()) {
            element.addAttribute(fac.createOMAttribute("format", null, "get"));
        } else if (endpointDefinition.isForceSOAP11()) {
            element.addAttribute(fac.createOMAttribute("format", null, "soap11"));
        } else if (endpointDefinition.isForceSOAP12()) {
            element.addAttribute(fac.createOMAttribute("format", null, "soap12"));
        } else if (endpointDefinition.isForceREST()) {
            element.addAttribute(fac.createOMAttribute("format", null, "api"));
        }

    }

    public OMElement serializeEndpointDefinition(EndpointDefinition endpointDefinition) {
        EndpointDefinitionSerializer serializer = new EndpointDefinitionSerializer();

        OMElement element = fac.createOMElement("default", SynapseConstants.SYNAPSE_OMNAMESPACE);
        serializer.serializeEndpointDefinition(endpointDefinition, element);
        serializeSpecificEndpointProperties(endpointDefinition, element);
        return element;
    }
}
