Implement GNX communication protocol

2 files changed, 149 insertions, 0 deletions

diff --git a/src/org/traccar/protocol/GnxProtocol.java b/src/org/traccar/protocol/GnxProtocol.java
new file mode 100644
index 000000000..34d9554b1
--- /dev/null
+++ b/src/org/traccar/protocol/GnxProtocol.java
@@ -0,0 +1,45 @@
+/*
+ * 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.traccar.BaseProtocol;
+import org.traccar.TrackerServer;
+
+import java.util.List;
+
+public class GnxProtocol extends BaseProtocol {
+
+    public GnxProtocol() {
+        super("gnx");
+    }
+
+    @Override
+    public void initTrackerServers(List<TrackerServer> serverList) {
+        serverList.add(new TrackerServer(new ServerBootstrap(), this.getName()) {
+            @Override
+            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+                pipeline.addLast("frameDecoder", new LineBasedFrameDecoder(1024));
+                pipeline.addLast("stringDecoder", new StringDecoder());
+                pipeline.addLast("objectDecoder", new GnxProtocolDecoder(GnxProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/org/traccar/protocol/GnxProtocolDecoder.java b/src/org/traccar/protocol/GnxProtocolDecoder.java
new file mode 100644
index 000000000..88cc90df2
--- /dev/null
+++ b/src/org/traccar/protocol/GnxProtocolDecoder.java
@@ -0,0 +1,104 @@
+/*
+ * 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.helper.DateBuilder;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.TimeZone;
+import java.util.regex.Pattern;
+
+public class GnxProtocolDecoder extends BaseProtocolDecoder {
+
+    public GnxProtocolDecoder(GnxProtocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("$GNX_")
+            .expression("...,")                  // type
+            .number("(d+),")                     // imei
+            .number("d+,")                       // length
+            .expression("([01]),")               // history
+            .number("(dd)(dd)(dd),")             // device time
+            .number("(dd)(dd)(dd),")             // device date
+            .number("(dd)(dd)(dd),")             // fix time
+            .number("(dd)(dd)(dd),")             // fix date
+            .number("(d),")                      // valid
+            .number("(dd.d+),")                  // latitude
+            .expression("([NS]),")
+            .number("(ddd.d+),")                 // longitude
+            .expression("([EW]),")
+            .number("(d+.?d*),")                 // speed
+            .number("(d+.?d*),")                 // course
+            .number("(d+),")                     // satellites
+            .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;
+        }
+
+        Position position = new Position();
+        position.setProtocol(getProtocolName());
+
+        if (!identify(parser.next(), channel, remoteAddress)) {
+            return null;
+        }
+        position.setDeviceId(getDeviceId());
+
+        if (parser.nextInt() == 1) {
+            position.set(Event.KEY_ARCHIVE, true);
+        }
+
+        DateBuilder dateBuilder;
+
+        dateBuilder = new DateBuilder(TimeZone.getTimeZone("GMT+5:30"))
+                .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt())
+                .setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
+        position.setDeviceTime(dateBuilder.getDate());
+
+        dateBuilder = new DateBuilder(TimeZone.getTimeZone("GMT+5:30"))
+                .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt())
+                .setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
+        position.setFixTime(dateBuilder.getDate());
+
+        position.setValid(parser.nextInt() != 0);
+
+        position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+        position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+
+        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
+        position.setCourse(parser.nextDouble());
+
+        position.set(Event.KEY_SATELLITES, parser.nextInt());
+
+        return position;
+    }
+
+}