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Diffstat (limited to 'src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java308
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diff --git a/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java
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+++ b/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java
@@ -0,0 +1,308 @@
+/*
+ * Copyright 2013 - 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.Unpooled;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.Checksum;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.Date;
+
+public class NavigilProtocolDecoder extends BaseProtocolDecoder {
+
+ public NavigilProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final int LEAP_SECONDS_DELTA = 25;
+
+ public static final int MSG_ERROR = 2;
+ public static final int MSG_INDICATION = 4;
+ public static final int MSG_CONN_OPEN = 5;
+ public static final int MSG_CONN_CLOSE = 6;
+ public static final int MSG_SYSTEM_REPORT = 7;
+ public static final int MSG_UNIT_REPORT = 8;
+ public static final int MSG_GEOFENCE_ALARM = 10;
+ public static final int MSG_INPUT_ALARM = 11;
+ public static final int MSG_TG2_REPORT = 12;
+ public static final int MSG_POSITION_REPORT = 13;
+ public static final int MSG_POSITION_REPORT_2 = 15;
+ public static final int MSG_SNAPSHOT4 = 17;
+ public static final int MSG_TRACKING_DATA = 18;
+ public static final int MSG_MOTION_ALARM = 19;
+ public static final int MSG_ACKNOWLEDGEMENT = 255;
+
+ private static Date convertTimestamp(long timestamp) {
+ return new Date((timestamp - LEAP_SECONDS_DELTA) * 1000);
+ }
+
+ private int senderSequenceNumber = 1;
+
+ private void sendAcknowledgment(Channel channel, int sequenceNumber) {
+ ByteBuf data = Unpooled.buffer(4);
+ data.writeShortLE(sequenceNumber);
+ data.writeShortLE(0); // OK
+
+ ByteBuf header = Unpooled.buffer(20);
+ header.writeByte(1); header.writeByte(0);
+ header.writeShortLE(senderSequenceNumber++);
+ header.writeShortLE(MSG_ACKNOWLEDGEMENT);
+ header.writeShortLE(header.capacity() + data.capacity());
+ header.writeShortLE(0);
+ header.writeShortLE(Checksum.crc16(Checksum.CRC16_CCITT_FALSE, data.nioBuffer()));
+ header.writeIntLE(0);
+ header.writeIntLE((int) (System.currentTimeMillis() / 1000) + LEAP_SECONDS_DELTA);
+
+ if (channel != null) {
+ channel.writeAndFlush(new NetworkMessage(Unpooled.wrappedBuffer(header, data), channel.remoteAddress()));
+ }
+ }
+
+ private Position parseUnitReport(
+ DeviceSession deviceSession, ByteBuf buf, int sequenceNumber) {
+ Position position = new Position(getProtocolName());
+
+ position.setValid(true);
+ position.set(Position.KEY_INDEX, sequenceNumber);
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ buf.readUnsignedShortLE(); // report trigger
+ position.set(Position.KEY_FLAGS, buf.readUnsignedShortLE());
+
+ position.setLatitude(buf.readIntLE() * 0.0000001);
+ position.setLongitude(buf.readIntLE() * 0.0000001);
+ position.setAltitude(buf.readUnsignedShortLE());
+
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedShortLE());
+ position.set(Position.KEY_SATELLITES_VISIBLE, buf.readUnsignedShortLE());
+ position.set("gpsAntennaState", buf.readUnsignedShortLE());
+
+ position.setSpeed(buf.readUnsignedShortLE() * 0.194384);
+ position.setCourse(buf.readUnsignedShortLE());
+
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+ position.set(Position.KEY_DISTANCE, buf.readUnsignedIntLE());
+
+ position.set(Position.KEY_BATTERY, buf.readUnsignedShortLE() * 0.001);
+
+ position.set(Position.KEY_CHARGE, buf.readUnsignedShortLE());
+
+ position.setTime(convertTimestamp(buf.readUnsignedIntLE()));
+
+ return position;
+ }
+
+ private Position parseTg2Report(
+ DeviceSession deviceSession, ByteBuf buf, int sequenceNumber) {
+ Position position = new Position(getProtocolName());
+
+ position.setValid(true);
+ position.set(Position.KEY_INDEX, sequenceNumber);
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ buf.readUnsignedShortLE(); // report trigger
+ buf.readUnsignedByte(); // reserved
+ buf.readUnsignedByte(); // assisted GPS age
+
+ position.setTime(convertTimestamp(buf.readUnsignedIntLE()));
+
+ position.setLatitude(buf.readIntLE() * 0.0000001);
+ position.setLongitude(buf.readIntLE() * 0.0000001);
+ position.setAltitude(buf.readUnsignedShortLE());
+
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+ position.set(Position.KEY_SATELLITES_VISIBLE, buf.readUnsignedByte());
+
+ position.setSpeed(buf.readUnsignedShortLE() * 0.194384);
+ position.setCourse(buf.readUnsignedShortLE());
+
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+ position.set("maximumSpeed", buf.readUnsignedShortLE());
+ position.set("minimumSpeed", buf.readUnsignedShortLE());
+
+ position.set(Position.PREFIX_IO + 1, buf.readUnsignedShortLE()); // VSAUT1 voltage
+ position.set(Position.PREFIX_IO + 2, buf.readUnsignedShortLE()); // VSAUT2 voltage
+ position.set(Position.PREFIX_IO + 3, buf.readUnsignedShortLE()); // solar voltage
+
+ position.set(Position.KEY_BATTERY, buf.readUnsignedShortLE() * 0.001);
+
+ return position;
+ }
+
+ private Position parsePositionReport(
+ DeviceSession deviceSession, ByteBuf buf, int sequenceNumber, long timestamp) {
+ Position position = new Position(getProtocolName());
+
+ position.set(Position.KEY_INDEX, sequenceNumber);
+ position.setDeviceId(deviceSession.getDeviceId());
+ position.setTime(convertTimestamp(timestamp));
+
+ position.setLatitude(buf.readMediumLE() * 0.00002);
+ position.setLongitude(buf.readMediumLE() * 0.00002);
+
+ position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
+ position.setCourse(buf.readUnsignedByte() * 2);
+
+ short flags = buf.readUnsignedByte();
+ position.setValid((flags & 0x80) == 0x80 && (flags & 0x40) == 0x40);
+
+ buf.readUnsignedByte(); // reserved
+
+ return position;
+ }
+
+ private Position parsePositionReport2(
+ DeviceSession deviceSession, ByteBuf buf, int sequenceNumber, long timestamp) {
+ Position position = new Position(getProtocolName());
+
+ position.set(Position.KEY_INDEX, sequenceNumber);
+ position.setDeviceId(deviceSession.getDeviceId());
+ position.setTime(convertTimestamp(timestamp));
+
+ position.setLatitude(buf.readIntLE() * 0.0000001);
+ position.setLongitude(buf.readIntLE() * 0.0000001);
+
+ buf.readUnsignedByte(); // report trigger
+
+ position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
+
+ short flags = buf.readUnsignedByte();
+ position.setValid((flags & 0x80) == 0x80 && (flags & 0x40) == 0x40);
+
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+
+ return position;
+ }
+
+ private Position parseSnapshot4(
+ DeviceSession deviceSession, ByteBuf buf, int sequenceNumber) {
+ Position position = new Position(getProtocolName());
+
+ position.set(Position.KEY_INDEX, sequenceNumber);
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ buf.readUnsignedByte(); // report trigger
+ buf.readUnsignedByte(); // position fix source
+ buf.readUnsignedByte(); // GNSS fix quality
+ buf.readUnsignedByte(); // GNSS assistance age
+
+ long flags = buf.readUnsignedIntLE();
+ position.setValid((flags & 0x0400) == 0x0400);
+
+ position.setTime(convertTimestamp(buf.readUnsignedIntLE()));
+
+ position.setLatitude(buf.readIntLE() * 0.0000001);
+ position.setLongitude(buf.readIntLE() * 0.0000001);
+ position.setAltitude(buf.readUnsignedShortLE());
+
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+ position.set(Position.KEY_SATELLITES_VISIBLE, buf.readUnsignedByte());
+
+ position.setSpeed(buf.readUnsignedShortLE() * 0.194384);
+ position.setCourse(buf.readUnsignedShortLE() * 0.1);
+
+ position.set("maximumSpeed", buf.readUnsignedByte());
+ position.set("minimumSpeed", buf.readUnsignedByte());
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+
+ position.set(Position.PREFIX_IO + 1, buf.readUnsignedByte()); // supply voltage 1
+ position.set(Position.PREFIX_IO + 2, buf.readUnsignedByte()); // supply voltage 2
+ position.set(Position.KEY_BATTERY, buf.readUnsignedShortLE() * 0.001);
+
+ return position;
+ }
+
+ private Position parseTrackingData(
+ DeviceSession deviceSession, ByteBuf buf, int sequenceNumber, long timestamp) {
+ Position position = new Position(getProtocolName());
+
+ position.set(Position.KEY_INDEX, sequenceNumber);
+ position.setDeviceId(deviceSession.getDeviceId());
+ position.setTime(convertTimestamp(timestamp));
+
+ buf.readUnsignedByte(); // tracking mode
+
+ short flags = buf.readUnsignedByte();
+ position.setValid((flags & 0x01) == 0x01);
+
+ buf.readUnsignedShortLE(); // duration
+
+ position.setLatitude(buf.readIntLE() * 0.0000001);
+ position.setLongitude(buf.readIntLE() * 0.0000001);
+
+ position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
+ position.setCourse(buf.readUnsignedByte() * 2.0);
+
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+ position.set(Position.KEY_BATTERY, buf.readUnsignedShortLE() * 0.001);
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+
+ return position;
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ buf.readUnsignedByte(); // protocol version
+ buf.readUnsignedByte(); // version id
+ int sequenceNumber = buf.readUnsignedShortLE();
+ int messageId = buf.readUnsignedShortLE();
+ buf.readUnsignedShortLE(); // length
+ int flags = buf.readUnsignedShortLE();
+ buf.readUnsignedShortLE(); // checksum
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(buf.readUnsignedIntLE()));
+ if (deviceSession == null) {
+ return null;
+ }
+
+ long timestamp = buf.readUnsignedIntLE();
+
+ if ((flags & 0x1) == 0x0) {
+ sendAcknowledgment(channel, sequenceNumber);
+ }
+
+ switch (messageId) {
+ case MSG_UNIT_REPORT:
+ return parseUnitReport(deviceSession, buf, sequenceNumber);
+ case MSG_TG2_REPORT:
+ return parseTg2Report(deviceSession, buf, sequenceNumber);
+ case MSG_POSITION_REPORT:
+ return parsePositionReport(deviceSession, buf, sequenceNumber, timestamp);
+ case MSG_POSITION_REPORT_2:
+ return parsePositionReport2(deviceSession, buf, sequenceNumber, timestamp);
+ case MSG_SNAPSHOT4:
+ return parseSnapshot4(deviceSession, buf, sequenceNumber);
+ case MSG_TRACKING_DATA:
+ return parseTrackingData(deviceSession, buf, sequenceNumber, timestamp);
+ default:
+ return null;
+ }
+ }
+
+}