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authorAnton Tananaev <anton.tananaev@gmail.com>2017-01-12 02:29:56 +1300
committerAnton Tananaev <anton.tananaev@gmail.com>2017-01-12 01:29:56 +1300
commitc03df5359224d86c8d1069872ddae52c0c35c225 (patch)
tree26f27d1fae6220bfd4b57806ad4a8bc7114d6166
parente54122e22725bae7a962d58e06a497526aed46cb (diff)
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Acknowledge AT2000 message fragments
-rw-r--r--src/org/traccar/protocol/At2000FrameDecoder.java21
-rw-r--r--src/org/traccar/protocol/At2000ProtocolDecoder.java15
-rw-r--r--test/org/traccar/protocol/At2000ProtocolDecoderTest.java8
3 files changed, 29 insertions, 15 deletions
diff --git a/src/org/traccar/protocol/At2000FrameDecoder.java b/src/org/traccar/protocol/At2000FrameDecoder.java
index d0be3f5f4..4c849afb7 100644
--- a/src/org/traccar/protocol/At2000FrameDecoder.java
+++ b/src/org/traccar/protocol/At2000FrameDecoder.java
@@ -1,5 +1,5 @@
/*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2017 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.
@@ -16,16 +16,31 @@
package org.traccar.protocol;
import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.handler.codec.frame.FrameDecoder;
+import java.nio.ByteOrder;
+
public class At2000FrameDecoder extends FrameDecoder {
private static final int BLOCK_LENGTH = 16;
+ private static final int ACK_LENGTH = 496;
private boolean firstPacket = true;
+ private void sendResponse(Channel channel) {
+ if (channel != null) {
+ ChannelBuffer response = ChannelBuffers.directBuffer(ByteOrder.LITTLE_ENDIAN, 2 * BLOCK_LENGTH);
+ response.writeByte(At2000ProtocolDecoder.MSG_ACKNOWLEDGEMENT);
+ response.writeMedium(ChannelBuffers.swapMedium(1));
+ response.writeByte(0x00); // success
+ response.writerIndex(2 * BLOCK_LENGTH);
+ channel.write(response);
+ }
+ }
+
@Override
protected Object decode(
ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {
@@ -47,6 +62,10 @@ public class At2000FrameDecoder extends FrameDecoder {
length = (length / BLOCK_LENGTH + 1) * BLOCK_LENGTH;
}
+ if (buf.readableBytes() >= length || buf.readableBytes() % ACK_LENGTH == 0) {
+ sendResponse(channel);
+ }
+
if (buf.readableBytes() >= length) {
return buf.readBytes(length);
}
diff --git a/src/org/traccar/protocol/At2000ProtocolDecoder.java b/src/org/traccar/protocol/At2000ProtocolDecoder.java
index 989e0d136..58b6f44e8 100644
--- a/src/org/traccar/protocol/At2000ProtocolDecoder.java
+++ b/src/org/traccar/protocol/At2000ProtocolDecoder.java
@@ -1,5 +1,5 @@
/*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2017 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.
@@ -48,17 +48,6 @@ public class At2000ProtocolDecoder extends BaseProtocolDecoder {
private Cipher cipher;
- private static void sendResponse(Channel channel) {
- if (channel != null) {
- ChannelBuffer response = ChannelBuffers.directBuffer(ByteOrder.LITTLE_ENDIAN, 2 * BLOCK_LENGTH);
- response.writeByte(MSG_ACKNOWLEDGEMENT);
- response.writeMedium(ChannelBuffers.swapMedium(1));
- response.writeByte(0x00); // success
- response.writerIndex(2 * BLOCK_LENGTH);
- channel.write(response);
- }
- }
-
private static void sendRequest(Channel channel) {
if (channel != null) {
ChannelBuffer response = ChannelBuffers.directBuffer(ByteOrder.LITTLE_ENDIAN, BLOCK_LENGTH);
@@ -136,8 +125,6 @@ public class At2000ProtocolDecoder extends BaseProtocolDecoder {
}
- sendResponse(channel);
-
if (type == MSG_DEVICE_ID) {
sendRequest(channel);
}
diff --git a/test/org/traccar/protocol/At2000ProtocolDecoderTest.java b/test/org/traccar/protocol/At2000ProtocolDecoderTest.java
index 6df44eaed..60485c805 100644
--- a/test/org/traccar/protocol/At2000ProtocolDecoderTest.java
+++ b/test/org/traccar/protocol/At2000ProtocolDecoderTest.java
@@ -19,6 +19,14 @@ public class At2000ProtocolDecoderTest extends ProtocolTest {
decoder = new At2000ProtocolDecoder(new At2000Protocol());
verifyNothing(decoder, binary(ByteOrder.LITTLE_ENDIAN,
+ "01012f000000000000000000000000000033353734353430373136303631393637f5441a9862260117858237fe3160388490f0df7d46c09112ee087235a92101"));
+
+ verifyPosition(decoder, binary(ByteOrder.LITTLE_ENDIAN,
+ "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"));
+
+ decoder = new At2000ProtocolDecoder(new At2000Protocol());
+
+ verifyNothing(decoder, binary(ByteOrder.LITTLE_ENDIAN,
"01012f0000000000000000000000000000333537343534303731363035353033dd529a1eb5df9f3b6d320b38250e03306692957e8c2127d8e381a717f639b4c9"));
verifyPosition(decoder, binary(ByteOrder.LITTLE_ENDIAN,