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Diffstat (limited to 'src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java248
1 files changed, 248 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java b/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java
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+++ b/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java
@@ -0,0 +1,248 @@
+/*
+ * 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.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.Context;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.regex.Pattern;
+
+public class GlobalSatProtocolDecoder extends BaseProtocolDecoder {
+
+ private String format0;
+ private String format1;
+
+ public GlobalSatProtocolDecoder(Protocol protocol) {
+ super(protocol);
+
+ format0 = Context.getConfig().getString(getProtocolName() + ".format0", "TSPRXAB27GHKLMnaicz*U!");
+ format1 = Context.getConfig().getString(getProtocolName() + ".format1", "SARY*U!");
+ }
+
+ public void setFormat0(String format) {
+ format0 = format;
+ }
+
+ public void setFormat1(String format) {
+ format1 = format;
+ }
+
+ private Position decodeOriginal(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+ if (channel != null) {
+ channel.writeAndFlush(new NetworkMessage("ACK\r", remoteAddress));
+ }
+
+ String format;
+ if (sentence.startsWith("GSr")) {
+ format = format0;
+ } else if (sentence.startsWith("GSh")) {
+ format = format1;
+ } else {
+ return null;
+ }
+
+ // Check that message contains required parameters
+ if (!format.contains("B") || !format.contains("S") || !(format.contains("1")
+ || format.contains("2") || format.contains("3")) || !(format.contains("6")
+ || format.contains("7") || format.contains("8"))) {
+ return null;
+ }
+
+ if (format.contains("*")) {
+ format = format.substring(0, format.indexOf('*'));
+ sentence = sentence.substring(0, sentence.indexOf('*'));
+ }
+ String[] values = sentence.split(",");
+
+ Position position = new Position(getProtocolName());
+
+ for (int formatIndex = 0, valueIndex = 1; formatIndex < format.length()
+ && valueIndex < values.length; formatIndex++) {
+ String value = values[valueIndex];
+
+ switch (format.charAt(formatIndex)) {
+ case 'S':
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, value);
+ if (deviceSession == null) {
+ return null;
+ }
+ position.setDeviceId(deviceSession.getDeviceId());
+ break;
+ case 'A':
+ if (value.isEmpty()) {
+ position.setValid(false);
+ } else {
+ position.setValid(Integer.parseInt(value) != 1);
+ }
+ break;
+ case 'B':
+ DateBuilder dateBuilder = new DateBuilder()
+ .setDay(Integer.parseInt(value.substring(0, 2)))
+ .setMonth(Integer.parseInt(value.substring(2, 4)))
+ .setYear(Integer.parseInt(value.substring(4)));
+ value = values[++valueIndex];
+ dateBuilder
+ .setHour(Integer.parseInt(value.substring(0, 2)))
+ .setMinute(Integer.parseInt(value.substring(2, 4)))
+ .setSecond(Integer.parseInt(value.substring(4)));
+ position.setTime(dateBuilder.getDate());
+ break;
+ case 'C':
+ valueIndex += 1;
+ break;
+ case '1':
+ double longitude = Double.parseDouble(value.substring(1));
+ if (value.charAt(0) == 'W') {
+ longitude = -longitude;
+ }
+ position.setLongitude(longitude);
+ break;
+ case '2':
+ longitude = Double.parseDouble(value.substring(4)) / 60;
+ longitude += Integer.parseInt(value.substring(1, 4));
+ if (value.charAt(0) == 'W') {
+ longitude = -longitude;
+ }
+ position.setLongitude(longitude);
+ break;
+ case '3':
+ position.setLongitude(Double.parseDouble(value) * 0.000001);
+ break;
+ case '6':
+ double latitude = Double.parseDouble(value.substring(1));
+ if (value.charAt(0) == 'S') {
+ latitude = -latitude;
+ }
+ position.setLatitude(latitude);
+ break;
+ case '7':
+ latitude = Double.parseDouble(value.substring(3)) / 60;
+ latitude += Integer.parseInt(value.substring(1, 3));
+ if (value.charAt(0) == 'S') {
+ latitude = -latitude;
+ }
+ position.setLatitude(latitude);
+ break;
+ case '8':
+ position.setLatitude(Double.parseDouble(value) * 0.000001);
+ break;
+ case 'G':
+ position.setAltitude(Double.parseDouble(value));
+ break;
+ case 'H':
+ position.setSpeed(Double.parseDouble(value));
+ break;
+ case 'I':
+ position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(value)));
+ break;
+ case 'J':
+ position.setSpeed(UnitsConverter.knotsFromMph(Double.parseDouble(value)));
+ break;
+ case 'K':
+ position.setCourse(Double.parseDouble(value));
+ break;
+ case 'N':
+ if (value.endsWith("mV")) {
+ position.set(Position.KEY_BATTERY,
+ Integer.parseInt(value.substring(0, value.length() - 2)) / 1000.0);
+ } else {
+ position.set(Position.KEY_BATTERY_LEVEL, Integer.parseInt(value));
+ }
+ break;
+ default:
+ // Unsupported
+ break;
+ }
+
+ valueIndex += 1;
+ }
+ return position;
+ }
+
+ private static final Pattern PATTERN = new PatternBuilder()
+ .text("$")
+ .number("(d+),") // imei
+ .number("d+,") // mode
+ .number("(d+),") // fix
+ .number("(dd)(dd)(dd),") // date (ddmmyy)
+ .number("(dd)(dd)(dd),") // time (hhmmss)
+ .expression("([EW])")
+ .number("(ddd)(dd.d+),") // longitude (dddmm.mmmm)
+ .expression("([NS])")
+ .number("(dd)(dd.d+),") // latitude (ddmm.mmmm)
+ .number("(d+.?d*),") // altitude
+ .number("(d+.?d*),") // speed
+ .number("(d+.?d*)?,") // course
+ .number("(d+)[,*]") // satellites
+ .number("(d+.?d*)") // hdop
+ .compile();
+
+ private Position decodeAlternative(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+ Parser parser = new Parser(PATTERN, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setValid(!parser.next().equals("1"));
+ position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
+ position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN));
+ position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN));
+ position.setAltitude(parser.nextDouble(0));
+ position.setSpeed(parser.nextDouble(0));
+ position.setCourse(parser.nextDouble(0));
+
+ position.set(Position.KEY_SATELLITES, parser.nextInt(0));
+ position.set(Position.KEY_HDOP, parser.nextDouble());
+
+ return position;
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ String sentence = (String) msg;
+
+ if (sentence.startsWith("GS")) {
+ return decodeOriginal(channel, remoteAddress, sentence);
+ } else if (sentence.startsWith("$")) {
+ return decodeAlternative(channel, remoteAddress, sentence);
+ }
+
+ return null;
+ }
+
+}