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Diffstat (limited to 'src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java144
1 files changed, 144 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java
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+++ b/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java
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+/*
+ * Copyright 2015 - 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.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.regex.Pattern;
+
+public class FlextrackProtocolDecoder extends BaseProtocolDecoder {
+
+ public FlextrackProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final Pattern PATTERN_LOGON = new PatternBuilder()
+ .number("(-?d+),") // index
+ .text("LOGON,")
+ .number("(d+),") // node id
+ .number("(d+)") // iccid
+ .compile();
+
+ private static final Pattern PATTERN = new PatternBuilder()
+ .number("(-?d+),") // index
+ .text("UNITSTAT,")
+ .number("(dddd)(dd)(dd),") // date (yyyymmdd)
+ .number("(dd)(dd)(dd),") // time (hhmmss)
+ .number("d+,") // node id
+ .number("([NS])(d+).(d+.d+),") // latitude
+ .number("([EW])(d+).(d+.d+),") // longitude
+ .number("(d+),") // speed
+ .number("(d+),") // course
+ .number("(d+),") // satellites
+ .number("(d+),") // battery
+ .number("(-?d+),") // gsm
+ .number("(x+),") // state
+ .number("(ddd)") // mcc
+ .number("(dd),") // mnc
+ .number("(-?d+),") // altitude
+ .number("(d+),") // hdop
+ .number("(x+),") // cell
+ .number("d+,") // gps fix time
+ .number("(x+),") // lac
+ .number("(d+)") // odometer
+ .compile();
+
+ private void sendAcknowledgement(Channel channel, SocketAddress remoteAddress, String index) {
+ if (channel != null) {
+ channel.writeAndFlush(new NetworkMessage(index + ",ACK\r", remoteAddress));
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ String sentence = (String) msg;
+
+ if (sentence.contains("LOGON")) {
+
+ Parser parser = new Parser(PATTERN_LOGON, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ sendAcknowledgement(channel, remoteAddress, parser.next());
+
+ String id = parser.next();
+ String iccid = parser.next();
+
+ getDeviceSession(channel, remoteAddress, iccid, id);
+
+ } else if (sentence.contains("UNITSTAT")) {
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Parser parser = new Parser(PATTERN, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ sendAcknowledgement(channel, remoteAddress, parser.next());
+
+ position.setTime(parser.nextDateTime());
+
+ position.setValid(true);
+ position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN));
+ position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN));
+ position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt(0)));
+ position.setCourse(parser.nextInt(0));
+
+ position.set(Position.KEY_SATELLITES, parser.nextInt(0));
+ position.set(Position.KEY_BATTERY, parser.nextInt(0));
+ int rssi = parser.nextInt(0);
+ position.set(Position.KEY_STATUS, parser.nextHexInt(0));
+
+ int mcc = parser.nextInt(0);
+ int mnc = parser.nextInt(0);
+
+ position.setAltitude(parser.nextInt(0));
+
+ position.set(Position.KEY_HDOP, parser.nextInt(0) * 0.1);
+
+ position.setNetwork(new Network(CellTower.from(
+ mcc, mnc, parser.nextHexInt(0), parser.nextHexInt(0), rssi)));
+
+ position.set(Position.KEY_ODOMETER, parser.nextInt(0));
+
+ return position;
+ }
+
+ return null;
+ }
+
+}