1 files changed, 131 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java b/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java
new file mode 100644
index 000000000..1460bb176
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright 2017 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.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+public class M2cProtocolDecoder extends BaseProtocolDecoder {
+
+    public M2cProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("#M2C,")
+            .expression("[^,]+,")                // model
+            .expression("[^,]+,")                // firmware
+            .number("d+,")                       // protocol
+            .number("(d+),")                     // imei
+            .number("(d+),")                     // index
+            .expression("([LH]),")               // archive
+            .number("d+,")                       // priority
+            .number("(d+),")                     // event
+            .number("(dd)(dd)(dd),")             // date (yymmdd)
+            .number("(dd)(dd)(dd),")             // time (hhmmss)
+            .number("(-?d+.d+),")                // latitude
+            .number("(-?d+.d+),")                // longitude
+            .number("(-?d+),")                   // altitude
+            .number("(d+),")                     // course
+            .number("(d+.d+),")                  // speed
+            .number("(d+),")                     // satellites
+            .number("(d+),")                     // odometer
+            .number("(d+),")                     // input
+            .number("(d+),")                     // output
+            .number("(d+),")                     // power
+            .number("(d+),")                     // battery
+            .number("(d+),")                     // adc 1
+            .number("(d+),")                     // adc 2
+            .number("(d+.?d*),")                 // temperature
+            .any()
+            .compile();
+
+    private Position decodePosition(Channel channel, SocketAddress remoteAddress, String line) {
+
+        Parser parser = new Parser(PATTERN, line);
+        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.set(Position.KEY_INDEX, parser.nextInt());
+
+        if (parser.next().equals("H")) {
+            position.set(Position.KEY_ARCHIVE, true);
+        }
+
+        position.set(Position.KEY_EVENT, parser.nextInt());
+
+        position.setValid(true);
+        position.setTime(parser.nextDateTime());
+        position.setLatitude(parser.nextDouble());
+        position.setLongitude(parser.nextDouble());
+        position.setAltitude(parser.nextInt());
+        position.setCourse(parser.nextInt());
+        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
+
+        position.set(Position.KEY_SATELLITES, parser.nextInt());
+        position.set(Position.KEY_ODOMETER, parser.nextLong());
+        position.set(Position.KEY_INPUT, parser.nextInt());
+        position.set(Position.KEY_OUTPUT, parser.nextInt());
+        position.set(Position.KEY_POWER, parser.nextInt() * 0.001);
+        position.set(Position.KEY_BATTERY, parser.nextInt() * 0.001);
+        position.set(Position.PREFIX_ADC + 1, parser.nextInt());
+        position.set(Position.PREFIX_ADC + 2, parser.nextInt());
+        position.set(Position.PREFIX_TEMP + 1, parser.nextDouble());
+
+        return position;
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        String sentence = (String) msg;
+        sentence = sentence.substring(1); // remove start symbol
+
+        List<Position> positions = new LinkedList<>();
+        for (String line : sentence.split("\r\n")) {
+            if (!line.isEmpty()) {
+                Position position = decodePosition(channel, remoteAddress, line);
+                if (position != null) {
+                    positions.add(position);
+                }
+            }
+        }
+
+        return positions;
+    }
+
+}