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| | | 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"; |
| | | 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() ; |
| | | } |
| | | */ |
| | | |
| | | } |