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authorAnton Tananaev <anton.tananaev@gmail.com>2020-05-29 23:11:19 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2020-05-29 23:11:19 -0700
commitc524d170f3324ccf10944887faa3d9f35e99e31a (patch)
tree15ddad1449f81cbad53f266665eddbc7615599f6 /src/main/java
parentab1022d0c571af09b2036f8694db71537fa430cd (diff)
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Fix protocol decoding
Diffstat (limited to 'src/main/java')
-rw-r--r--src/main/java/org/traccar/protocol/DingtekFrameDecoder.java43
-rw-r--r--src/main/java/org/traccar/protocol/DingtekProtocol.java7
-rw-r--r--src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java33
3 files changed, 69 insertions, 14 deletions
diff --git a/src/main/java/org/traccar/protocol/DingtekFrameDecoder.java b/src/main/java/org/traccar/protocol/DingtekFrameDecoder.java
new file mode 100644
index 000000000..a8e35cc5c
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/DingtekFrameDecoder.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2020 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.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandlerContext;
+import org.traccar.BaseFrameDecoder;
+
+import java.nio.charset.StandardCharsets;
+
+public class DingtekFrameDecoder extends BaseFrameDecoder {
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {
+
+ if (buf.readableBytes() < 10) {
+ return null;
+ }
+
+ int length = Integer.parseInt(buf.toString(8, 2, StandardCharsets.US_ASCII), 16) * 2;
+ if (buf.readableBytes() >= length) {
+ return buf.readRetainedSlice(length);
+ }
+
+ return null;
+ }
+
+}
diff --git a/src/main/java/org/traccar/protocol/DingtekProtocol.java b/src/main/java/org/traccar/protocol/DingtekProtocol.java
index 31962202c..cf2a6c0f5 100644
--- a/src/main/java/org/traccar/protocol/DingtekProtocol.java
+++ b/src/main/java/org/traccar/protocol/DingtekProtocol.java
@@ -15,7 +15,8 @@
*/
package org.traccar.protocol;
-import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
import org.traccar.BaseProtocol;
import org.traccar.PipelineBuilder;
import org.traccar.TrackerServer;
@@ -26,7 +27,9 @@ public class DingtekProtocol extends BaseProtocol {
addServer(new TrackerServer(false, getName()) {
@Override
protected void addProtocolHandlers(PipelineBuilder pipeline) {
- pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 4, 1));
+ pipeline.addLast(new DingtekFrameDecoder());
+ pipeline.addLast(new StringDecoder());
+ pipeline.addLast(new StringEncoder());
pipeline.addLast(new DingtekProtocolDecoder(DingtekProtocol.this));
}
});
diff --git a/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java b/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java
index 1488c2cd6..98fe4b7b3 100644
--- a/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java
@@ -17,13 +17,16 @@ package org.traccar.protocol;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
+import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.Protocol;
+import org.traccar.helper.DataConverter;
import org.traccar.model.Position;
import java.net.SocketAddress;
+import java.util.Date;
public class DingtekProtocolDecoder extends BaseProtocolDecoder {
@@ -35,23 +38,29 @@ public class DingtekProtocolDecoder extends BaseProtocolDecoder {
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
- ByteBuf buf = (ByteBuf) msg;
+ String sentence = (String) msg;
- buf.readUnsignedByte(); // header
- buf.readUnsignedByte(); // forced
- buf.readUnsignedByte(); // device type
- int type = buf.readUnsignedByte();
- buf.readUnsignedByte(); // length
-
- String imei = ByteBufUtil.hexDump(buf.slice(buf.writerIndex() - 9, 8)).substring(1);
- DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
- if (deviceSession == null) {
- return null;
- }
+ int type = Integer.parseInt(sentence.substring(6, 8), 16);
if (type == 0x01 || type == 0x02 || type == 0x04) {
+
+ ByteBuf buf = Unpooled.wrappedBuffer(DataConverter.parseHex(sentence));
+
+ buf.readUnsignedByte(); // header
+ buf.readUnsignedByte(); // forced
+ buf.readUnsignedByte(); // device type
+ buf.readUnsignedByte(); // type
+ buf.readUnsignedByte(); // length
+
+ String imei = ByteBufUtil.hexDump(buf.slice(buf.writerIndex() - 9, 8)).substring(1);
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+ if (deviceSession == null) {
+ return null;
+ }
+
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
+ position.setTime(new Date());
position.set("height", buf.readUnsignedShort());