package com.dy.common.mw.protocol.p206V1_0_0; import com.dy.common.util.ByteUtil; import com.dy.common.util.ByteUtilUnsigned; import com.dy.common.util.CRC8_for_2_0; public class CommonV1_0_1 { /** * 检查头 * @param bs 上行字节数组 * @return true是,false否 * @throws Exception 异常 */ public Boolean isThisProtocolHead(byte[] bs) throws Exception{ if(bs == null){ return null ; }else if(bs.length >= (ProtocolConstantV206V1_0_0.ctrlIndex - 1) && bs[0] == ProtocolConstantV206V1_0_0.P_Head_Byte && bs[2] == ProtocolConstantV206V1_0_0.P_Head_Byte){ //String vs = this.parseVersion(bs) ; //return vs.equals(ProtocolConstantV206V1_0_0.version); return true ; }else{ return false ; } } /** * 检查头 * @param bs 上行字节数组 * @throws Exception 异常 */ public void checkHead(byte[] bs) throws Exception{ if(bs.length < 13 || bs[0] != ProtocolConstantV206V1_0_0.P_Head_Byte || bs[2] != ProtocolConstantV206V1_0_0.P_Head_Byte){ throw new Exception("上行数据帧头不正确!") ; } } /** * 检查尾 * @param bs 上行字节数组 * @throws Exception 异常 */ public void checkTail(byte[] bs) throws Exception{ if(bs.length < 1 || bs[bs.length - 1] != ProtocolConstantV206V1_0_0.P_Tail_Byte){ throw new Exception("上行数据尾不正确!") ; } } /** * 分析帧长度 * @param bs 上行字节数组 * @return 数据长度 * @throws Exception 异常 */ public int parseFrameLen(byte[] bs)throws Exception{ int len = ByteUtilUnsigned.byte2Byte(bs, ProtocolConstantV206V1_0_0.dataLenIndex) ; return len + ProtocolConstantV206V1_0_0.lenHead2ctrl + ProtocolConstantV206V1_0_0.lenTail ; } /** * 分析用户数据域字节数 * @param bs 上行字节数组 * @return 数据长度 * @throws Exception 异常 */ public int parseDataLen(byte[] bs)throws Exception{ int len = ByteUtilUnsigned.byte2Byte(bs, ProtocolConstantV206V1_0_0.dataLenIndex) ; return len + ProtocolConstantV206V1_0_0.lenHead2ctrl + ProtocolConstantV206V1_0_0.lenTail ; } /** * 分析Rtu地址 * @param bs 上行字节数组 * @return 控制器地址 * @throws Exception 异常 */ public String parseRtuAddr(byte[] bs)throws Exception{ String rtuAddrBCD = "" + ByteUtil.BCD2Long_BE(bs, ProtocolConstantV206V1_0_0.rtuAddr1Index_start, ProtocolConstantV206V1_0_0.rtuAddr1Index_end) ; String rtuAddrStr = "" + ByteUtilUnsigned.bytes2Short_BE(bs, ProtocolConstantV206V1_0_0.rtuAddr2Index_start) ; while(rtuAddrStr.length() < 4){ rtuAddrStr = "0" + rtuAddrStr ; } return rtuAddrBCD + rtuAddrStr ; } /** * 分析功能码 * @param bs 上行字节数组 * @return 功能码 */ public String parseCode(byte[] bs){ return ByteUtil.bytes2Hex(bs, false, ProtocolConstantV206V1_0_0.codeIndex, 1) ; } /** * 校验和检查 * @param bs 上行字节数组 * @return 通过null,未通过返回原因 * @throws Exception 异常 */ public String checkCrc_str(byte[] bs) throws Exception { byte crcCompute = (byte)new CRC8_for_2_0().CRC8(bs, ProtocolConstantV206V1_0_0.ctrlIndex, bs.length - 3) ; byte crcInBs = bs[bs.length - 2] ; if(crcCompute == crcInBs){ return null ; }else{ return "计算CRC是:" + crcCompute + ",上传CRC是" + crcInBs ; } } /* 构造控制域 D7 D6 D5~D4 D3~D0 传输方向位 DIR 拆分标志位 DIV 帧计数位 FCB 功能码 */ public byte createCtrl(byte dir, byte funcCode){ byte b = dir;//(byte)0x80//控制域:DIR=1,表示此帧报文是由终端发出的上行报文; b = (byte)(b | funcCode) ; //FCB == 3 b = (byte)(b | (byte)0x18) ; //DIV = 0 //DIR = 0 return b ; } /** * 得到关开阀类型名称 * @param type 字节 * @return 名称 */ public static String openCloseValveType(byte type){ return switch (type) { case 1 -> "刷卡开阀"; case 2 -> "刷卡关阀"; case 3 -> "中心站开阀"; case 4 -> "中心站关阀"; case 5 -> "欠费关阀"; case 6 -> "流量计故障关阀"; case 7 -> "紧急关阀"; case 8 -> "用户远程开阀"; case 9 -> "用户远程关阀"; case 16 -> "管道无水自动关阀"; default -> "未知"; }; } /* * 分析版本号 * @param bs 上行字节数组 * @return 版本号 * @throws Exception 异常 public String parseVersion(byte[] bs)throws Exception{ short ver = ByteUtilUnsigned.byte2Byte(bs, ProtocolConstantV206V1_0_0.versionIndex) ; char[] cs = ("" + ver).toCharArray() ; StringBuilder vs = new StringBuilder() ; for(byte i = 0 ; i < cs.length; i++){ if(i == 0){ vs.append(cs[i]) ; }else{ vs.append(".").append(cs[i]) ; } } return vs.toString() ; } */ }