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Diffstat (limited to 'src/org/traccar/protocol/AnytrekProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/AnytrekProtocolDecoder.java119
1 files changed, 119 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/AnytrekProtocolDecoder.java b/src/org/traccar/protocol/AnytrekProtocolDecoder.java
new file mode 100644
index 000000000..defb6949f
--- /dev/null
+++ b/src/org/traccar/protocol/AnytrekProtocolDecoder.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 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.NetworkMessage;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+
+public class AnytrekProtocolDecoder extends BaseProtocolDecoder {
+
+ public AnytrekProtocolDecoder(AnytrekProtocol protocol) {
+ super(protocol);
+ }
+
+ private void sendResponse(Channel channel, SocketAddress remoteAddress, int type) {
+ if (channel != null) {
+ ByteBuf response = Unpooled.buffer();
+ response.writeShort(0x7878);
+ response.writeShortLE(1 + 1 + 2 + 1 + 2); // length
+ response.writeByte(type);
+ response.writeByte(0); // error
+ response.writeShortLE(0); // report interval
+ response.writeByte(0); // clear alarm
+ response.writeShortLE(0); // checksum
+ response.writeByte('\r');
+ response.writeByte('\n');
+ channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ buf.skipBytes(2); // header
+ buf.readUnsignedShortLE(); // size
+ int type = buf.readUnsignedByte();
+
+ String imei = ByteBufUtil.hexDump(buf.readSlice(8)).substring(2);
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.set(Position.KEY_VERSION_FW, buf.readUnsignedShortLE());
+ position.set(Position.KEY_BATTERY, buf.readUnsignedShortLE() * 0.01);
+ position.set(Position.KEY_RSSI, buf.readUnsignedByte());
+
+ DateBuilder dateBuilder = new DateBuilder()
+ .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
+ .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
+ position.setTime(dateBuilder.getDate());
+
+ position.set(Position.KEY_SATELLITES, BitUtil.to(buf.readUnsignedByte(), 4));
+
+ double latitude = buf.readUnsignedIntLE() / 1800000.0;
+ double longitude = buf.readUnsignedIntLE() / 1800000.0;
+ position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
+
+ int flags = buf.readUnsignedShortLE();
+ position.setCourse(BitUtil.to(flags, 10));
+ position.setValid(BitUtil.check(flags, 12));
+
+ if (!BitUtil.check(flags, 10)) {
+ latitude = -latitude;
+ }
+ if (BitUtil.check(flags, 11)) {
+ longitude = -longitude;
+ }
+
+ position.setLatitude(latitude);
+ position.setLongitude(longitude);
+
+ buf.readUnsignedIntLE(); // info index
+ buf.readUnsignedIntLE(); // setting index
+
+ flags = buf.readUnsignedByte();
+ position.set(Position.KEY_CHARGE, BitUtil.check(flags, 0));
+ position.set(Position.KEY_IGNITION, BitUtil.check(flags, 1));
+ position.set(Position.KEY_ALARM, BitUtil.check(flags, 4) ? Position.ALARM_GENERAL : null);
+
+ buf.readUnsignedShortLE(); // charge current
+
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+
+ sendResponse(channel, remoteAddress, type);
+
+ return position;
+ }
+
+}