aboutsummaryrefslogtreecommitdiff
path: root/src/org/traccar/protocol/RetranslatorProtocolDecoder.java
diff options
context:
space:
mode:
authorAnton Tananaev <anton.tananaev@gmail.com>2018-06-04 16:36:49 +1200
committerAnton Tananaev <anton.tananaev@gmail.com>2018-06-04 16:36:49 +1200
commit36a253b19764613e03b538a2b1a48eaa6408f4d5 (patch)
tree6fb94138036a200d9863b803ef71895b808214bb /src/org/traccar/protocol/RetranslatorProtocolDecoder.java
parent96f005aeece3b1374991a3fb691687bde9eb8109 (diff)
downloadtrackermap-server-36a253b19764613e03b538a2b1a48eaa6408f4d5.tar.gz
trackermap-server-36a253b19764613e03b538a2b1a48eaa6408f4d5.tar.bz2
trackermap-server-36a253b19764613e03b538a2b1a48eaa6408f4d5.zip
Implement Wialon Retranslator protocol
Diffstat (limited to 'src/org/traccar/protocol/RetranslatorProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/RetranslatorProtocolDecoder.java119
1 files changed, 119 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/RetranslatorProtocolDecoder.java b/src/org/traccar/protocol/RetranslatorProtocolDecoder.java
new file mode 100644
index 000000000..756b0bcaf
--- /dev/null
+++ b/src/org/traccar/protocol/RetranslatorProtocolDecoder.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright 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.
+ * 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 org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.jboss.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.ByteOrder;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+
+public class RetranslatorProtocolDecoder extends BaseProtocolDecoder {
+
+ public RetranslatorProtocolDecoder(RetranslatorProtocol protocol) {
+ super(protocol);
+ }
+
+ private double readDouble(ChannelBuffer buf) {
+ byte[] bytes = new byte[8];
+ buf.readBytes(bytes);
+ return ChannelBuffers.wrappedBuffer(ByteOrder.LITTLE_ENDIAN, bytes).readDouble();
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ if (channel != null) {
+ channel.write(ChannelBuffers.wrappedBuffer(new byte[]{0x11}));
+ }
+
+ ChannelBuffer buf = (ChannelBuffer) msg;
+
+ buf.readUnsignedInt(); // length
+
+ int idLength = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x00) - buf.readerIndex();
+ String id = buf.readBytes(idLength).toString(StandardCharsets.US_ASCII);
+ buf.readByte();
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+ position.setTime(new Date(buf.readUnsignedInt() * 1000));
+
+ buf.readUnsignedInt(); // bit flags
+
+ while (buf.readable()) {
+
+ buf.readUnsignedShort(); // block type
+ int blockEnd = buf.readInt() + buf.readerIndex();
+ buf.readUnsignedByte(); // security attribute
+ int dataType = buf.readUnsignedByte();
+
+ int nameLength = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x00) - buf.readerIndex();
+ String name = buf.readBytes(nameLength).toString(StandardCharsets.US_ASCII);
+ buf.readByte();
+
+ if (name.equals("posinfo")) {
+ position.setValid(true);
+ position.setLongitude(readDouble(buf));
+ position.setLatitude(readDouble(buf));
+ position.setAltitude(readDouble(buf));
+ position.setSpeed(buf.readShort());
+ position.setCourse(buf.readShort());
+ position.set(Position.KEY_SATELLITES, buf.readByte());
+ } else {
+ switch (dataType) {
+ case 1:
+ int len = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0x00) - buf.readerIndex();
+ position.set(name, buf.readBytes(len).toString(StandardCharsets.US_ASCII));
+ buf.readByte();
+ break;
+ case 3:
+ position.set(name, buf.readInt());
+ break;
+ case 4:
+ position.set(name, readDouble(buf));
+ break;
+ case 5:
+ position.set(name, buf.readLong());
+ break;
+ default:
+ break;
+ }
+ }
+
+ buf.readerIndex(blockEnd);
+
+ }
+
+ if (position.getLatitude() == 0 && position.getLongitude() == 0) {
+ getLastLocation(position, position.getDeviceTime());
+ }
+
+ return position;
+ }
+
+}