diff options
Diffstat (limited to 'src/org/traccar/protocol/L100FrameDecoder.java')
-rw-r--r-- | src/org/traccar/protocol/L100FrameDecoder.java | 41 |
1 files changed, 27 insertions, 14 deletions
diff --git a/src/org/traccar/protocol/L100FrameDecoder.java b/src/org/traccar/protocol/L100FrameDecoder.java index a597cbd7d..b7caa14f4 100644 --- a/src/org/traccar/protocol/L100FrameDecoder.java +++ b/src/org/traccar/protocol/L100FrameDecoder.java @@ -1,5 +1,5 @@ /* - * Copyright 2016 Anton Tananaev (anton@traccar.org) + * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -15,33 +15,46 @@ */ package org.traccar.protocol; -import org.jboss.netty.buffer.ChannelBuffer; -import org.jboss.netty.channel.Channel; -import org.jboss.netty.channel.ChannelHandlerContext; -import org.jboss.netty.handler.codec.frame.FrameDecoder; +import io.netty.buffer.ByteBuf; +import io.netty.channel.Channel; +import io.netty.channel.ChannelHandlerContext; +import org.traccar.BaseFrameDecoder; -public class L100FrameDecoder extends FrameDecoder { +public class L100FrameDecoder extends BaseFrameDecoder { @Override protected Object decode( - ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception { + ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception { - if (buf.readableBytes() < 80) { + if (buf.readableBytes() < 10) { return null; } - int index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x02); - if (index == -1) { - index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x04); + int header = buf.getByte(buf.readerIndex()); + boolean obd = header == 'L' || header == 'H'; + + int index; + if (obd) { + index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) '*'); + } else { + index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x02); if (index == -1) { - return null; + index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x04); + if (index == -1) { + return null; + } } } index += 2; // checksum - if (buf.readableBytes() >= index - buf.readerIndex()) { - return buf.readBytes(index - buf.readerIndex()); + if (buf.writerIndex() >= index) { + if (!obd) { + buf.skipBytes(2); // header + } + ByteBuf frame = buf.readRetainedSlice(index - buf.readerIndex() - 2); + buf.skipBytes(2); // footer + return frame; } return null; |