Implement Maestro protocol decoder

1 files changed, 107 insertions, 0 deletions

diff --git a/src/org/traccar/protocol/MaestroProtocolDecoder.java b/src/org/traccar/protocol/MaestroProtocolDecoder.java
new file mode 100644
index 000000000..06ec2473d
--- /dev/null
+++ b/src/org/traccar/protocol/MaestroProtocolDecoder.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2016 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 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 MaestroProtocolDecoder extends BaseProtocolDecoder {
+
+    public MaestroProtocolDecoder(MaestroProtocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("@")
+            .number("(d+),")                     // imei
+            .number("d+,")                       // index
+            .expression("[^,]+,")                // profile
+            .expression("([01]),")               // validity
+            .number("(d+.d+),")                  // battery
+            .number("(d+),")                     // gsm
+            .expression("([01]),")               // starter
+            .expression("([01]),")               // ignition
+            .number("(dd)/(dd)/(dd),")           // date
+            .number("(dd):(dd):(dd),")           // time
+            .number("(-?d+.d+),")                // longitude
+            .number("(-?d+.d+),")                // latitude
+            .number("(d+.?d*),")                 // altitude
+            .number("(d+.?d*),")                 // speed
+            .number("(d+.?d*),")                 // course
+            .number("(d+),")                     // satellites
+            .number("(d+.?d*),")                 // hdop
+            .number("(d+.?d*)")                  // odometer
+            .number(",(d+)").optional()          // adc
+            .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();
+        position.setProtocol(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        position.setValid(parser.nextInt() == 1);
+
+        position.set(Position.KEY_BATTERY, parser.nextDouble());
+        position.set(Position.KEY_GSM, parser.nextInt());
+        position.set(Position.KEY_CHARGE, parser.nextInt() == 1);
+        position.set(Position.KEY_IGNITION, parser.nextInt() == 1);
+
+        DateBuilder dateBuilder = new DateBuilder()
+                .setDate(parser.nextInt(), parser.nextInt(), parser.nextInt())
+                .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
+        position.setTime(dateBuilder.getDate());
+
+        position.setLatitude(parser.nextDouble());
+        position.setLongitude(parser.nextDouble());
+        position.setAltitude(parser.nextDouble());
+        position.setSpeed(UnitsConverter.knotsFromMph(parser.nextDouble()));
+        position.setCourse(parser.nextDouble());
+
+        position.set(Position.KEY_SATELLITES, parser.nextInt());
+        position.set(Position.KEY_HDOP, parser.nextDouble());
+        position.set(Position.KEY_ODOMETER, parser.nextDouble() * 1609.34);
+
+        if (parser.hasNext()) {
+            position.set(Position.PREFIX_ADC + 1, parser.nextInt());
+        }
+
+        return position;
+    }
+
+}