com.kradac.karview.netty.MyDecoder.java Source code

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Here is the source code for com.kradac.karview.netty.MyDecoder.java

Source

/*
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package com.kradac.karview.netty;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;
import java.util.List;

/**
 *
 * @author
 */
public class MyDecoder extends ByteToMessageDecoder {

    private final ByteBuf in = Unpooled.buffer();

    @Override
    protected void decode(ChannelHandlerContext chc, ByteBuf bb, List<Object> list) throws Exception {
        if (bb.readableBytes() < 2) {
            return;
        }
        bb.markReaderIndex();
        int length = bb.readChar();
        if (length > 150) {
            String data = "";
            while (bb.isReadable()) {
                data += (char) bb.readByte();
            }
            bb.clear();
            if (data.contains("OK") || data.contains("handshake")) {
                if (data.contains("handshake")) {
                    chc.channel().write("0%%at");
                }
                if (data.contains("OK")) {
                    System.out.println("Respuesta de Comando AT [" + data + "]");
                }
            } else {
                System.err.println("Datos incorrectos enviados al Servidor [" + data + "]");
                chc.channel().disconnect();
            }
        }
        if (bb.readableBytes() < length - 2) {
            bb.resetReaderIndex();
            return;
        }
        in.writeBytes(bb);//Escribimos los bytes
        in.discardReadBytes();//
        in.retain();
        list.add(in);
        bb.clear();//vaciamos el byteBuf
    }
    //    @Override
    //    protected void decode(ChannelHandlerContext chc, ByteBuf bb, List<Object> list) throws Exception {
    //        if (bb.readableBytes() < 2) {
    //            return;
    //        }
    //        bb.markReaderIndex();
    //        int length = bb.readChar();
    //        if (length > 150) {
    //            String data = "";
    //            while (bb.isReadable()) {
    //                data += (char) bb.readByte();
    //            }
    //            bb.clear();
    //
    //            if (data.contains("OK") || data.contains("handshake")) {
    //                if (data.contains("handshake")) {
    //                    chc.channel().write("0%%at");
    //                }
    //                if (data.contains("OK")) {
    //                    System.out.println("Respuesta de Comando AT [" + data + "]");
    //                }
    //            } else {
    //                System.err.println("Datos incorrectos enviados al Servidor [" + data + "]");
    //                chc.channel().disconnect();
    //            }
    //        }
    //
    //        if (bb.readableBytes() < length - 2) {
    //            bb.resetReaderIndex();
    //            return;
    //        }
    //        list.add(bb.readBytes(length - 2));
    //    }
}