package cn.org.hentai.jtt1078.server;
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import cn.org.hentai.jtt1078.util.ByteUtils;
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import cn.org.hentai.jtt1078.util.Packet;
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import io.netty.buffer.ByteBuf;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.codec.ByteToMessageDecoder;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.util.List;
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/**
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* Created by matrixy on 2019/4/9.
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*/
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public class Jtt1078MessageDecoder extends ByteToMessageDecoder
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{
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static Logger logger = LoggerFactory.getLogger(Jtt1078MessageDecoder.class);
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//byte[] block = new byte[4096];
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byte[] block = new byte[4096];
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Jtt1078Decoder decoder = new Jtt1078Decoder();
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@Override
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protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception
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{
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int length = in.readableBytes();
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for (int i = 0, k = (int)Math.ceil(length / 512f); i < k; i++)
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{
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int l = i < k - 1 ? 512 : length - (i * 512);
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in.readBytes(block, 0, l);
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//System.out.println("block:"+block.length);
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decoder.write(block, 0, l);
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while (true)
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{
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Packet p = decoder.decode();
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if (p == null) break;
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out.add(p);
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}
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}
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}
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}
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