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authorAnton Tananaev <anton@traccar.org>2023-10-28 20:32:09 -0700
committerAnton Tananaev <anton@traccar.org>2023-10-28 20:32:09 -0700
commit29b9ec9ddcd8248b8a8398a2c714a8f52c0581d8 (patch)
treec36a96662a0679b970c0b1adbb39d86b5c598ad1 /src/main/java/org/traccar
parent6878beaa6856c378b0df0c17b8a4c689fd752cfa (diff)
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Basic Positrex protocol support
Diffstat (limited to 'src/main/java/org/traccar')
-rw-r--r--src/main/java/org/traccar/protocol/PositrexProtocol.java36
-rw-r--r--src/main/java/org/traccar/protocol/PositrexProtocolDecoder.java106
2 files changed, 142 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/PositrexProtocol.java b/src/main/java/org/traccar/protocol/PositrexProtocol.java
new file mode 100644
index 000000000..67b8f2189
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/PositrexProtocol.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2023 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 jakarta.inject.Inject;
+import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+public class PositrexProtocol extends BaseProtocol {
+
+ @Inject
+ public PositrexProtocol(Config config) {
+ addServer(new TrackerServer(config, getName(), false) {
+ @Override
+ protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+ pipeline.addLast(new PositrexProtocolDecoder(PositrexProtocol.this));
+ }
+ });
+ }
+
+}
diff --git a/src/main/java/org/traccar/protocol/PositrexProtocolDecoder.java b/src/main/java/org/traccar/protocol/PositrexProtocolDecoder.java
new file mode 100644
index 000000000..8726bc831
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/PositrexProtocolDecoder.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2023 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 org.traccar.BaseProtocolDecoder;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
+
+import java.net.SocketAddress;
+import java.util.Date;
+
+public class PositrexProtocolDecoder extends BaseProtocolDecoder {
+
+ public PositrexProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ public static final int MSG_PING = 0x2E;
+
+ private Date readTime(ByteBuf buf) {
+ long time = buf.readUnsignedInt();
+ DateBuilder dateBuilder = new DateBuilder();
+ dateBuilder.setSecond((int) (time % 60));
+ time /= 60;
+ dateBuilder.setMinute((int) (time % 60));
+ time /= 60;
+ dateBuilder.setHour((int) (time % 24));
+ time /= 24;
+ dateBuilder.setDay((int) (time % 32));
+ time /= 32;
+ dateBuilder.setMonth((int) (time % 13));
+ dateBuilder.setYear((int) (2000 + time / 13));
+ return dateBuilder.getDate();
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ int first = buf.getUnsignedByte(buf.readerIndex());
+ int second = buf.getUnsignedByte(buf.readerIndex() + 1);
+ long deviceId;
+ if (BitUtil.check(first, 7)) {
+ if (BitUtil.check(first, 6)) {
+ deviceId = 73000000 + BitUtil.to(buf.readUnsignedInt(), 30);
+ } else if (second == 0) {
+ deviceId = 7590000 + BitUtil.to(buf.readUnsignedMedium(), 20);
+ } else {
+ deviceId = 70000000 + BitUtil.to(buf.readUnsignedMedium(), 20);
+ }
+ } else {
+ deviceId = 7560000 + buf.readUnsignedShort();
+ }
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(deviceId));
+ if (deviceSession == null) {
+ return null;
+ }
+
+ int service = buf.readUnsignedByte();
+ if (service == MSG_PING) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setTime(readTime(buf));
+
+ int latitude = buf.readMedium();
+ int longitude = buf.readMedium();
+
+ position.setValid(BitUtil.check(latitude, 23));
+ position.setLatitude(BitUtil.to(latitude, 23) * 0.000025);
+ position.setLongitude(longitude * 0.000025);
+
+ position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
+ position.setCourse(buf.readUnsignedByte() * 2);
+
+ return position;
+
+ }
+
+ return null;
+ }
+
+}