Implement cGuard communication protocol

3 files changed, 139 insertions, 0 deletions

diff --git a/src/org/traccar/model/Position.java b/src/org/traccar/model/Position.java
index 710dd1e83..c1058aef9 100644
--- a/src/org/traccar/model/Position.java
+++ b/src/org/traccar/model/Position.java
@@ -57,6 +57,7 @@ public class Position extends Message {
     public static final String KEY_THROTTLE = "throttle";
     public static final String KEY_MOTION = "motion";
     public static final String KEY_ARMED = "armed";
+    public static final String KEY_ACCURACY = "accuracy";
 
     public static final String KEY_OBD_SPEED = "obdSpeed";
     public static final String KEY_OBD_ODOMETER = "obdOdometer";
diff --git a/src/org/traccar/protocol/CguardProtocol.java b/src/org/traccar/protocol/CguardProtocol.java
new file mode 100644
index 000000000..1e6d212c8
--- /dev/null
+++ b/src/org/traccar/protocol/CguardProtocol.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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 org.jboss.netty.bootstrap.ServerBootstrap;
+import org.jboss.netty.channel.ChannelPipeline;
+import org.jboss.netty.handler.codec.frame.LineBasedFrameDecoder;
+import org.jboss.netty.handler.codec.string.StringDecoder;
+import org.jboss.netty.handler.codec.string.StringEncoder;
+import org.traccar.BaseProtocol;
+import org.traccar.TrackerServer;
+
+import java.util.List;
+
+public class CguardProtocol extends BaseProtocol {
+
+    public CguardProtocol() {
+        super("cguard");
+    }
+
+    @Override
+    public void initTrackerServers(List<TrackerServer> serverList) {
+        serverList.add(new TrackerServer(new ServerBootstrap(), getName()) {
+            @Override
+            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+                pipeline.addLast("frameDecoder", new LineBasedFrameDecoder(1024));
+                pipeline.addLast("stringDecoder", new StringDecoder());
+                pipeline.addLast("stringEncoder", new StringEncoder());
+                pipeline.addLast("objectDecoder", new CguardProtocolDecoder(CguardProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/org/traccar/protocol/CguardProtocolDecoder.java b/src/org/traccar/protocol/CguardProtocolDecoder.java
new file mode 100644
index 000000000..1646363e5
--- /dev/null
+++ b/src/org/traccar/protocol/CguardProtocolDecoder.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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 org.jboss.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+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 CguardProtocolDecoder extends BaseProtocolDecoder {
+
+    public CguardProtocolDecoder(CguardProtocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("NV:")
+            .number("(dd)(dd)(dd) ")             // date
+            .number("(dd)(dd)(dd):")             // time
+            .number("(-?d+.d+):")                // longitude
+            .number("(-?d+.d+):")                // latitude
+            .number("(d+.?d*):")                 // speed
+            .number("(?:NAN|(d+.?d*)):")         // accuracy
+            .number("(?:NAN|(d+.?d*)):")         // course
+            .number("(?:NAN|(d+.?d*))")          // altitude
+            .compile();
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        String sentence = (String) msg;
+
+        if (sentence.startsWith("ID:") || sentence.startsWith("IDRO:")) {
+            getDeviceSession(channel, remoteAddress, sentence.substring(sentence.indexOf(':') + 1));
+            return null;
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Parser parser = new Parser(PATTERN, (String) msg);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        Position position = new Position();
+        position.setProtocol(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        DateBuilder dateBuilder = new DateBuilder()
+                .setDate(parser.nextInt(), parser.nextInt(), parser.nextInt())
+                .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
+        position.setTime(dateBuilder.getDate());
+
+        position.setValid(true);
+        position.setLatitude(parser.nextDouble());
+        position.setLongitude(parser.nextDouble());
+        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
+
+        position.set(Position.KEY_ACCURACY, parser.nextDouble());
+
+        position.setCourse(parser.nextDouble());
+        position.setAltitude(parser.nextDouble());
+
+        return position;
+    }
+
+}