| | |
| | | import org.apache.logging.log4j.Logger; |
| | | import org.apache.mina.core.buffer.BufferDataException; |
| | | import org.apache.mina.core.buffer.IoBuffer; |
| | | import org.apache.mina.core.session.IoSession; |
| | | |
| | | |
| | | @AnnotationPrefixedDataAvailable( |
| | | protocolName = ProtocolConstantV206V202404.protocolName, |
| | | protocolVersion = ProtocolConstantV206V202404.protocolVer, |
| | | priority = ProtocolConstantV206V202404.priority, |
| | | onLineDataMinLength = ProtocolConstantV206V202404.onLineDataMinLength, |
| | | headMinLength = ProtocolConstantV206V202404.headMinLength) |
| | |
| | | private static final Logger log = LogManager.getLogger(PrefixedDataAvailableV202404.class) ; |
| | | |
| | | private static final String protocolName = ProtocolConstantV206V202404.protocolName ; |
| | | private static final short protocolVersion = ProtocolConstantV206V202404.protocolVer ; |
| | | |
| | | |
| | | /** |
| | |
| | | * @return 不是本协议数据时返回空 |
| | | * @throws Exception 异常 |
| | | */ |
| | | public PrefixedDataAvailableStatus forOnLine(IoBuffer in, |
| | | int remain, |
| | | int minDataLength, //对应ProtocolConstantV2_0.onLineDataMinLength |
| | | int maxDataLength //对应ProtocolConstant.errorMaxLength |
| | | public PrefixedDataAvailableStatus forOnLine(IoSession ioSession, |
| | | IoBuffer in, |
| | | int remain, |
| | | int minDataLength, //对应ProtocolConstantV2_0.onLineDataMinLength |
| | | int maxDataLength //对应ProtocolConstant.errorMaxLength |
| | | ) throws Exception { |
| | | |
| | | int oldPosition = in.position() ; |
| | |
| | | //in.position(0) ;//错误用法,如果发生粘包数据,将会死循环 |
| | | in.position(oldPosition) ; |
| | | |
| | | return this.doForData(preByte, minDataLength, maxDataLength) ; |
| | | return this.doForData(ioSession, preByte, minDataLength, maxDataLength) ; |
| | | } |
| | | |
| | | /** |
| | |
| | | * @throws Exception 异常 |
| | | */ |
| | | @Override |
| | | public PrefixedDataAvailableStatus forUpData(IoBuffer in, |
| | | int remain, |
| | | int minDataLength, |
| | | int maxDataLength) throws Exception { |
| | | public PrefixedDataAvailableStatus forUpData(IoSession ioSession, |
| | | IoBuffer in, |
| | | int remain, |
| | | int minDataLength, |
| | | int maxDataLength) throws Exception { |
| | | int oldPosition = in.position() ; |
| | | byte[] preByte = new byte[remain]; |
| | | in.get(preByte) ; |
| | | //in.position(0) ;//错误用法,如果发生粘包数据,将会死循环 |
| | | in.position(oldPosition) ; |
| | | |
| | | return this.doForData(preByte, minDataLength, maxDataLength) ; |
| | | return this.doForData(ioSession, preByte, minDataLength, maxDataLength) ; |
| | | |
| | | } |
| | | /** |
| | | * 进行判断 |
| | | * @param ioSession ioSession |
| | | * @param preByte byte[] |
| | | * @param minDataLength 最小数据长度 |
| | | * @param maxDataLength 最大数据长度 |
| | | * @return PrefixedDataAvailableStatus |
| | | * @throws Exception 异常 |
| | | */ |
| | | private PrefixedDataAvailableStatus doForData(byte[] preByte, int minDataLength, int maxDataLength) throws Exception{ |
| | | private PrefixedDataAvailableStatus doForData(IoSession ioSession, byte[] preByte, int minDataLength, int maxDataLength) throws Exception{ |
| | | int remain = preByte.length ; |
| | | |
| | | if (remain < minDataLength) { |
| | |
| | | |
| | | if(remain == frameLen){ |
| | | //不断不粘 |
| | | return new PrefixedDataAvailableStatus().completed(frameLen) ; |
| | | return new PrefixedDataAvailableStatus().completed(frameLen, protocolName, protocolVersion) ; |
| | | }else if(remain > frameLen){ |
| | | String headHex = ByteUtil.bytes2Hex(preByte, true) ; |
| | | log.warn("收到数据之帧前部:" + headHex + ",但发生粘包现象。") ; |
| | | return new PrefixedDataAvailableStatus().adjoined(frameLen) ; |
| | | return new PrefixedDataAvailableStatus().adjoined(frameLen, protocolName, protocolVersion) ; |
| | | }else{ |
| | | // remain < dataLen |
| | | String headHex = ByteUtil.bytes2Hex(preByte, true) ; |