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authorAnton Tananaev <anton.tananaev@gmail.com>2020-10-26 23:37:13 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2020-10-26 23:37:13 -0700
commit9b90538fc856041e14c12dd4fabbb108cd7858df (patch)
tree33962d6783da7fdf2789a353f1da67c457c30e65 /src/main/java/org/traccar/protocol/NetProtocolDecoder.java
parentc560535dda15f1d24b60c9595c603144e3ce766d (diff)
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Implement Net device protocol
Diffstat (limited to 'src/main/java/org/traccar/protocol/NetProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/NetProtocolDecoder.java92
1 files changed, 92 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/NetProtocolDecoder.java b/src/main/java/org/traccar/protocol/NetProtocolDecoder.java
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+++ b/src/main/java/org/traccar/protocol/NetProtocolDecoder.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2020 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.BitUtil;
+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 NetProtocolDecoder extends BaseProtocolDecoder {
+
+ public NetProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final Pattern PATTERN = new PatternBuilder()
+ .text("@L")
+ .number("ddd")
+ .number("(d{15})") // imei
+ .number("xx")
+ .number("(dd)(dd)(dd)") // date (ddmmyy)
+ .number("(dd)(dd)(dd)") // time (hhmmss)
+ .number("(x)") // flags
+ .number("(dd)(dd)(dddd)") // latitude
+ .number("(ddd)(dd)(dddd)") // longitude
+ .number("(xx)") // status
+ .number("(x{4})") // speed
+ .number("(x{6})") // odometer
+ .number("(xxx)") // course
+ .number("(xxx)") // alarm
+ .any()
+ .compile();
+
+ @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());
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
+
+ int flags = parser.nextHexInt();
+
+ position.setValid(BitUtil.check(flags, 3));
+ int hemisphereLatitude = BitUtil.check(flags, 1) ? -1 : 1;
+ int hemisphereLongitude = BitUtil.check(flags, 0) ? -1 : 1;
+
+ position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN) * hemisphereLatitude);
+ position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN) * hemisphereLongitude);
+
+ position.set(Position.KEY_STATUS, parser.nextHexInt());
+ position.setSpeed(parser.nextHexInt() * 0.01);
+ position.set(Position.KEY_ODOMETER, parser.nextHexInt());
+ position.setCourse(parser.nextHexInt());
+
+ parser.nextHexInt(); // alarm
+
+ return position;
+ }
+
+}