package com.fzzy.protocol.bhzn.v0.server;
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import com.fzzy.api.utils.BytesUtil;
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import com.fzzy.protocol.bhzn.server.BhznGrainV2ServerUtils;
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import com.ld.io.api.IoSession;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 工具类
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*
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* @author vince
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*/
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public class BhznGrainV0ServerUtils {
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/**
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* 记录每个连接的最后一次信息时间 key = 连接的KYE，data =当前时间戳
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*/
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public static Map<String, Long> contextMapHeart = new HashMap<>();
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public static int HEART_BEAT_TIME = 30;//心跳间隔时间
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public static String MSG_START = "3C42485A4E3E";//<BHZN>
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public static String MSG_START2 = "AA";
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public static String MSG_END = "<END>";//<END>
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public static String MSG_END_16 = "3C454E443E";//<END>
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public static final String CHARSET = "UTF-8";
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/**
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* 针对无线粮情主机的默认ID配置
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*/
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public static String DEFAULT_MAC_ID = "53681";
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public static String FUNCTION_ID_00 = "00";
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public static String FUNCTION_ID_F1 = "F1";
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public static String FUNCTION_ID_F2 = "F2";
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public static String FUNCTION_ID_83 = "83";
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public static String FUNCTION_ID_93 = "93";
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public static String FUNCTION_ID_92 = "92";
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/**
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* 生成TCP连接的KEY
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*
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* @param ip
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* @param port
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* @return
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*/
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public static String getServerKey(String ip, Integer port) {
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return ip + ":" + port;
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}
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/**
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* 添加最新心跳时间戳
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*
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* @param session
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*/
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public static void addHeartBeat(IoSession session) {
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contextMapHeart.put(getServerKey(session.getAddress(), session.getPort()), System.currentTimeMillis());
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}
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public static Long getHearBeat(IoSession session) {
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return contextMapHeart.get(getServerKey(session.getAddress(), session.getPort()));
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}
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/**
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* 计算校验
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*
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* @param content
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* @return
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*/
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public static String getCheck(String content) {
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int start = BhznGrainV2ServerUtils.MSG_START.length() + BhznGrainV2ServerUtils.MSG_START2.length();
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content = content.substring(start);
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int sum = 0;
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String hex;
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for (int i = 0; i < content.length() / 2; i++) {
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hex = content.substring(i * 2, i * 2 + 2);
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sum += BytesUtil.hexToInt(hex);
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}
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String hexSum = BytesUtil.intToHexStr(sum);
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int check = BytesUtil.hexToInt(hexSum.substring(hexSum.length() - 2));
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return BytesUtil.intToHexStr(256 - check).substring(2);
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}
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}
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