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/*
 * The MIT License
 *
 * Copyright (c) 2017 aoju.org All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.aoju.bus.socket.netty;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import io.netty.channel.ChannelHandlerContext;
import org.aoju.bus.logger.Logger;

/**
 * @author Kimi Liu
 * @version 5.0.8
 * @since JDK 1.8+
 */
public class RequestDecoder {

    public SocketRequest decode(ChannelHandlerContext ctx, String message) {
        try {

            SocketRequest request = new SocketRequest();
            JSONObject input = JSON.parseObject(message);

            request.setContext(ctx);

            if (input.containsKey(NettyConsts.EVENT)) {
                String event = input.getString(NettyConsts.EVENT);
                request.setEvent(event);
            }

            if (input.containsKey(NettyConsts.TOPIC)) {
                String[] topic = input.getObject(NettyConsts.TOPIC, String[].class);
                request.setTopic(topic);
            }

            if (input.containsKey(NettyConsts.DATA)) {
                String data = input.getString(NettyConsts.DATA);
                request.setData(data);
            }

            return request;
        } catch (Exception e) {
            Logger.error("SocketRequest decode exception!", e);
            return null;
        }
    }

}