aboutsummaryrefslogtreecommitdiff
path: root/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java114
1 files changed, 114 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java
new file mode 100644
index 000000000..abf208a46
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2017 - 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.Protocol;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.regex.Pattern;
+
+public class Gt30ProtocolDecoder extends BaseProtocolDecoder {
+
+ public Gt30ProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final Pattern PATTERN = new PatternBuilder()
+ .text("$$")
+ .number("x{4}") // length
+ .expression("(.{14})") // device id
+ .number("x{4}") // type
+ .expression("(.)?") // alarm
+ .number("(dd)(dd)(dd).(ddd),") // time (hhmmss.sss)
+ .expression("([AV]),") // validity
+ .number("(d+)(dd.d+),") // latitude
+ .expression("([NS]),")
+ .number("(d+)(dd.d+),") // longitude
+ .expression("([EW]),")
+ .number("(d+.d+)?,") // speed
+ .number("(d+.d+)?,") // course
+ .number("(dd)(dd)(dd)") // date (ddmmyy)
+ .expression("[^\\|]*")
+ .number("|(d+.d+)") // hdop
+ .number("|(-?d+)") // altitude
+ .number("x{4}") // checksum
+ .compile();
+
+ private String decodeAlarm(int value) {
+ switch (value) {
+ case 0x01:
+ case 0x02:
+ case 0x03:
+ return Position.ALARM_SOS;
+ case 0x10:
+ return Position.ALARM_LOW_BATTERY;
+ case 0x11:
+ return Position.ALARM_OVERSPEED;
+ case 0x12:
+ return Position.ALARM_GEOFENCE;
+ default:
+ return null;
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ Parser parser = new Parser(PATTERN, (String) msg);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next().trim());
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ if (parser.hasNext()) {
+ position.set(Position.KEY_ALARM, decodeAlarm(parser.next().charAt(0)));
+ }
+
+ DateBuilder dateBuilder = new DateBuilder()
+ .setTime(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
+
+ position.setValid(parser.next().equals("A"));
+ position.setLatitude(parser.nextCoordinate());
+ position.setLongitude(parser.nextCoordinate());
+ position.setSpeed(parser.nextDouble(0));
+ position.setCourse(parser.nextDouble(0));
+
+ dateBuilder.setDateReverse(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
+ position.setTime(dateBuilder.getDate());
+
+ position.set(Position.KEY_HDOP, parser.nextDouble());
+
+ position.setAltitude(parser.nextDouble(0));
+
+ return position;
+ }
+
+}