package com.dy.simRtu.tcpClient;
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import com.dy.common.util.ByteUtil;
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import com.dy.simRtu.tcpClient.downData.DownData;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import org.apache.mina.core.buffer.IoBuffer;
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import org.apache.mina.core.session.IoSession;
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import org.apache.mina.filter.codec.CumulativeProtocolDecoder;
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import org.apache.mina.filter.codec.ProtocolDecoderOutput;
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import java.io.IOException;
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public class LocalDecoder extends CumulativeProtocolDecoder {
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private static final Logger log = LogManager.getLogger(LocalDecoder.class) ;
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private static final String DECODER_STATE_KEY = LocalDecoder.class.getName() + ".STATE";
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public static final int MAX_SIZE = 2147483647 ;
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/**
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* 对网络传输来的数据进行解码
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*/
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protected boolean doDecode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws IOException, Exception{
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int remain = in.remaining() ;
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if(remain > 0){
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byte[] bs = new byte[remain];
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in.get(bs) ;
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in.position(0) ;
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log.info("收到中间件下行数据：" + ByteUtil.bytes2Hex(bs, true));
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new DownData().parseData(bs);
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}
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return true;
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}
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}
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