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Diffstat (limited to 'src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java170
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diff --git a/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java b/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
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index 000000000..cc187225b
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+++ b/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
@@ -0,0 +1,170 @@
+/*
+ * 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.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.Checksum;
+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 GpsGateProtocolDecoder extends BaseProtocolDecoder {
+
+ public GpsGateProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final Pattern PATTERN_GPRMC = new PatternBuilder()
+ .text("$GPRMC,")
+ .number("(dd)(dd)(dd).?d*,") // time (hhmmss)
+ .expression("([AV]),") // validity
+ .number("(dd)(dd.d+),") // latitude
+ .expression("([NS]),")
+ .number("(ddd)(dd.d+),") // longitude
+ .expression("([EW]),")
+ .number("(d+.d+)?,") // speed
+ .number("(d+.d+)?,") // course
+ .number("(dd)(dd)(dd)") // date (ddmmyy)
+ .any()
+ .compile();
+
+ private static final Pattern PATTERN_FRCMD = new PatternBuilder()
+ .text("$FRCMD,")
+ .number("(d+),") // imei
+ .expression("[^,]*,") // command
+ .expression("[^,]*,")
+ .number("(d+)(dd.d+),") // latitude
+ .expression("([NS]),")
+ .number("(d+)(dd.d+),") // longitude
+ .expression("([EW]),")
+ .number("(d+.?d*),") // altitude
+ .number("(d+.?d*),") // speed
+ .number("(d+.?d*)?,") // course
+ .number("(dd)(dd)(dd),") // date (ddmmyy)
+ .number("(dd)(dd)(dd).?d*,") // time (hhmmss)
+ .expression("([01])") // validity
+ .any()
+ .compile();
+
+ private void send(Channel channel, SocketAddress remoteAddress, String message) {
+ if (channel != null) {
+ channel.writeAndFlush(new NetworkMessage(message + Checksum.nmea(message) + "\r\n", remoteAddress));
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ String sentence = (String) msg;
+
+ if (sentence.startsWith("$FRLIN,")) {
+
+ int beginIndex = sentence.indexOf(',', 7);
+ if (beginIndex != -1) {
+ beginIndex += 1;
+ int endIndex = sentence.indexOf(',', beginIndex);
+ if (endIndex != -1) {
+ String imei = sentence.substring(beginIndex, endIndex);
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+ if (deviceSession != null) {
+ if (channel != null) {
+ send(channel, remoteAddress, "$FRSES," + channel.id().asShortText());
+ }
+ } else {
+ send(channel, remoteAddress, "$FRERR,AuthError,Unknown device");
+ }
+ } else {
+ send(channel, remoteAddress, "$FRERR,AuthError,Parse error");
+ }
+ } else {
+ send(channel, remoteAddress, "$FRERR,AuthError,Parse error");
+ }
+
+ } else if (sentence.startsWith("$FRVER,")) {
+
+ send(channel, remoteAddress, "$FRVER,1,0,GpsGate Server 1.0");
+
+ } else if (sentence.startsWith("$GPRMC,")) {
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Parser parser = new Parser(PATTERN_GPRMC, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ DateBuilder dateBuilder = new DateBuilder()
+ .setTime(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());
+
+ return position;
+
+ } else if (sentence.startsWith("$FRCMD,")) {
+
+ Parser parser = new Parser(PATTERN_FRCMD, 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.setLatitude(parser.nextCoordinate());
+ position.setLongitude(parser.nextCoordinate());
+ position.setAltitude(parser.nextDouble(0));
+ position.setSpeed(parser.nextDouble(0));
+ position.setCourse(parser.nextDouble(0));
+
+ position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
+
+ position.setValid(parser.next().equals("1"));
+
+ return position;
+
+ }
+
+ return null;
+ }
+
+}