/**
 * ******************************************************************************
 *  Copyright Fujitsu.
 *
 *  Licensed 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.
 * *****************************************************************************
 *
 *  NIFCLOUD SDK for Java
 *
 */
package com.nifty.cloud.sdk.loadbalancer.model.transform;

import com.nifty.cloud.sdk.loadbalancer.model.Listener;
import com.nifty.cloud.sdk.loadbalancer.model.Sslpolicy;
import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;

/**
 * Listener変換クラス。<br />
 * このクラスはレスポンスXMLのListener要素からListenerクラスを生成します。
 */
public class ListenerConverter implements Converter {

    private static final String ELEMENT_PROTOCOL = "Protocol";
    private static final String ELEMENT_LOAD_BALANCER_PORT = "LoadBalancerPort";
    private static final String ELEMENT_INSTANCE_PORT = "InstancePort";
    private static final String ELEMENT_BALANCING_TYPE = "BalancingType";
    private static final String ELEMENT_SSL_CERTIFICATE_ID = "SSLCertificateId";
    private static final String ELEMENT_SSL_POLICY = "SSLPolicy";

    /**
     * 変換可能なクラスか判定します。
     * 
     * @param clazz
     *            クラス
     * @return 変換可能な場合true, 変換不可能な場合false
     * 
     * @see com.thoughtworks.xstream.converters.Converter#canConvert(Class)
     */
    @SuppressWarnings("rawtypes")
    @Override
    public boolean canConvert(Class clazz) {
        return clazz == Listener.class;
    }

    /**
     * ListenerをListenerクラスに変換します。
     * 
     * @param reader
     *            XML読込リーダ
     * @param context
     * @return Listenerオブジェクト
     * 
     * @see com.thoughtworks.xstream.converters.Converter#unmarshal(HierarchicalStreamReader,
     *      UnmarshallingContext)
     */
    @Override
    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
        Listener Listener = new Listener();

        Converter sslpolicyConverter = new SslpolicyConverter();

        String name = null;
        while (reader.hasMoreChildren()) {
            reader.moveDown();

            name = reader.getNodeName();
            if (name.equals(ELEMENT_PROTOCOL)) {
                Listener.setProtocol(reader.getValue());
            } else if (name.equals(ELEMENT_LOAD_BALANCER_PORT)) {
                Listener.setLoadBalancerPort(new Integer(reader.getValue()));
            } else if (name.equals(ELEMENT_INSTANCE_PORT)) {
                Listener.setInstancePort(new Integer(reader.getValue()));
            } else if (name.equals(ELEMENT_BALANCING_TYPE)) {
                Listener.setBalancingType(reader.getValue());
            } else if (name.equals(ELEMENT_SSL_CERTIFICATE_ID)) {
                Listener.setSslCertificateId(reader.getValue());
            } else if (name.equals(ELEMENT_SSL_POLICY)) {
                Listener.setSslpolicy((Sslpolicy) sslpolicyConverter.unmarshal(reader, context));
            }

            reader.moveUp();
        }

        return Listener;
    }

    /**
     * 未実装メソッド
     */
    @Override
    public void marshal(Object paramObject,
        HierarchicalStreamWriter paramHierarchicalStreamWriter,
        MarshallingContext paramMarshallingContext) {
        // 処理無し
    }

}
