package com.cjs.site.biz.info;

import java.util.concurrent.CopyOnWriteArrayList;

import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.socket.CloseStatus;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketSession;
import org.springframework.web.socket.handler.TextWebSocketHandler;

import com.cjs.site.util.redis.JedisTemplate;

/**
 * 交易行情
 * 
 * @author tongyufu
 *
 */
@Service
public class TradeHandler extends TextWebSocketHandler {

    /**行情信息*/
    public static final String                           TRADE_INFO         = "trade:info";
    public static CopyOnWriteArrayList<WebSocketSession> WEBSOCKET_SESSIONS = new CopyOnWriteArrayList<WebSocketSession>();
    Logger                                               log                = LogManager
        .getLogger();
    @Autowired
    private JedisTemplate                                jedis;

    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        super.afterConnectionEstablished(session);
        log.debug("新连接加入：" + session.getId());
        WEBSOCKET_SESSIONS.add(session);

        //连接时先推送一次
        String payload = jedis.get(TRADE_INFO);
        if (StringUtils.isNotBlank(payload)) {
            session.sendMessage(new TextMessage(payload));
        }
    }

    @Override
    protected void handleTextMessage(WebSocketSession session,
                                     TextMessage message) throws Exception {
        super.handleTextMessage(session, message);
        log.debug("接收到客户端消息：" + message.getPayload());
    }

    @Override
    public void afterConnectionClosed(WebSocketSession session,
                                      CloseStatus status) throws Exception {
        super.afterConnectionClosed(session, status);
        log.debug("连接断开：" + session.getId());
        WEBSOCKET_SESSIONS.remove(session);
    }

}