From 61f82e3dce810d99bfdd02e6b7e66c6f617a13b5 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Wed, 26 Sep 2018 12:10:50 +1200
Subject: Implement ITS protocol

---
 src/org/traccar/protocol/ItsProtocol.java        | 46 ++++++++++++++
 src/org/traccar/protocol/ItsProtocolDecoder.java | 81 ++++++++++++++++++++++++
 2 files changed, 127 insertions(+)
 create mode 100644 src/org/traccar/protocol/ItsProtocol.java
 create mode 100644 src/org/traccar/protocol/ItsProtocolDecoder.java

(limited to 'src')

diff --git a/src/org/traccar/protocol/ItsProtocol.java b/src/org/traccar/protocol/ItsProtocol.java
new file mode 100644
index 000000000..dfd5c37a0
--- /dev/null
+++ b/src/org/traccar/protocol/ItsProtocol.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 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.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
+import org.traccar.BaseProtocol;
+import org.traccar.CharacterDelimiterFrameDecoder;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+
+import java.util.List;
+
+public class ItsProtocol extends BaseProtocol {
+
+    public ItsProtocol() {
+        super("its");
+    }
+
+    @Override
+    public void initTrackerServers(List<TrackerServer> serverList) {
+        serverList.add(new TrackerServer(false, getName()) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+                pipeline.addLast("frameDecoder", new CharacterDelimiterFrameDecoder(1024, '*'));
+                pipeline.addLast("stringEncoder", new StringEncoder());
+                pipeline.addLast("stringDecoder", new StringDecoder());
+                pipeline.addLast("objectDecoder", new ItsProtocolDecoder(ItsProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/org/traccar/protocol/ItsProtocolDecoder.java b/src/org/traccar/protocol/ItsProtocolDecoder.java
new file mode 100644
index 000000000..53d796b03
--- /dev/null
+++ b/src/org/traccar/protocol/ItsProtocolDecoder.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 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.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 ItsProtocolDecoder extends BaseProtocolDecoder {
+
+    public ItsProtocolDecoder(ItsProtocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("$,")
+            .expression("[^,]+,")                // header
+            .expression("[^,]+,")                // type
+            .number("(d{15}),")                  // imei
+            .expression("(?:NM|SP),")            // status
+            .number("(dd),(dd),(dddd),")         // date (ddmmyyyy)
+            .number("(dd),(dd),(dd),")           // time (hhmmss)
+            .expression("([AV]),")               // valid
+            .number("(d+.d+),([NS]),")           // latitude
+            .number("(d+.d+),([EW]),")           // longitude
+            .number("(-?d+.d+),")                // altitude
+            .number("(d+.d+),")                  // speed
+            .number("(d+.d+),")                  // distance
+            .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));
+        position.setValid(parser.next().equals("A"));
+        position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+        position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+        position.setAltitude(parser.nextDouble());
+        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
+
+        position.set(Position.KEY_ODOMETER, parser.nextDouble());
+
+        return position;
+    }
+
+}
-- 
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