Extend TMG to support BD312 protocol

3 files changed, 126 insertions, 28 deletions

diff --git a/src/org/traccar/protocol/TmgFrameDecoder.java b/src/org/traccar/protocol/TmgFrameDecoder.java
new file mode 100644
index 000000000..07b4162db
--- /dev/null
+++ b/src/org/traccar/protocol/TmgFrameDecoder.java
@@ -0,0 +1,67 @@
+/*
+ * 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 org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBufferIndexFinder;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.frame.FrameDecoder;
+
+public class TmgFrameDecoder extends FrameDecoder {
+
+    private boolean isLetter(byte c) {
+        return c >= 'a' && c <= 'z';
+    }
+
+    @Override
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception {
+
+        int beginIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new ChannelBufferIndexFinder() {
+            @Override
+            public boolean find(ChannelBuffer buffer, int guessedIndex) {
+                if (buffer.getByte(guessedIndex) != (byte) '$' || buffer.writerIndex() - guessedIndex < 5) {
+                    return false;
+                }
+                if (buffer.getByte(guessedIndex + 4) == ','
+                        && isLetter(buffer.getByte(guessedIndex + 1))
+                        && isLetter(buffer.getByte(guessedIndex + 2))
+                        && isLetter(buffer.getByte(guessedIndex + 3))) {
+                    return true;
+                }
+                return false;
+            }
+        });
+
+        if (beginIndex > 0) {
+
+            buf.readerIndex(beginIndex);
+
+            int endIndex = buf.indexOf(beginIndex, buf.writerIndex(), (byte) '\n');
+
+            if (endIndex > 0) {
+                ChannelBuffer frame = buf.readBytes(endIndex - beginIndex);
+                buf.readByte(); // delimiter
+                return frame;
+            }
+
+        }
+
+        return null;
+    }
+
+}
diff --git a/src/org/traccar/protocol/TmgProtocol.java b/src/org/traccar/protocol/TmgProtocol.java
index f30d61e9a..c11762cac 100644
--- a/src/org/traccar/protocol/TmgProtocol.java
+++ b/src/org/traccar/protocol/TmgProtocol.java
@@ -17,7 +17,6 @@ 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;
@@ -36,7 +35,7 @@ public class TmgProtocol extends BaseProtocol {
         serverList.add(new TrackerServer(new ServerBootstrap(), getName()) {
             @Override
             protected void addSpecificHandlers(ChannelPipeline pipeline) {
-                pipeline.addLast("frameDecoder", new LineBasedFrameDecoder(1024));
+                pipeline.addLast("frameDecoder", new TmgFrameDecoder());
                 pipeline.addLast("stringEncoder", new StringEncoder());
                 pipeline.addLast("stringDecoder", new StringDecoder());
                 pipeline.addLast("objectDecoder", new TmgProtocolDecoder(TmgProtocol.this));
diff --git a/src/org/traccar/protocol/TmgProtocolDecoder.java b/src/org/traccar/protocol/TmgProtocolDecoder.java
index b8458dd52..a7ca35f70 100644
--- a/src/org/traccar/protocol/TmgProtocolDecoder.java
+++ b/src/org/traccar/protocol/TmgProtocolDecoder.java
@@ -36,7 +36,7 @@ public class TmgProtocolDecoder extends BaseProtocolDecoder {
     private static final Pattern PATTERN = new PatternBuilder()
             .text("$")
             .expression("(...),")                // type
-            .expression("[LH],")                 // history
+            .expression("[LH],").optional()      // history
             .number("(d+),")                     // imei
             .number("(dd)(dd)(dddd),")           // date (ddmmyyyy)
             .number("(dd)(dd)(dd),")             // time (hhmmss)
@@ -47,6 +47,7 @@ public class TmgProtocolDecoder extends BaseProtocolDecoder {
             .expression("([EW]),")
             .number("(d+.?d*),")                 // speed
             .number("(d+.?d*),")                 // course
+            .groupBegin()
             .number("(-?d+.?d*),")               // altitude
             .number("(d+.d+),")                  // hdop
             .number("(d+),")                     // satellites
@@ -65,6 +66,20 @@ public class TmgProtocolDecoder extends BaseProtocolDecoder {
             .number("d+.?d*,")                   // trip meter
             .expression("([^,]*),")              // software version
             .expression("([^,]*),").optional()   // rfid
+            .or()
+            .number("[^,]*,")                    // cid
+            .number("(d+),")                     // rssi
+            .number("(d+),")                     // satellites
+            .number("(d+),")                     // battery level
+            .expression("([01]),")               // ignition
+            .expression("[LH]{4},")              // input
+            .expression("[NT]{4},")              // tamper status
+            .expression("[LH]{2},")              // output
+            .number("(d+.d+),")                  // adc1
+            .number("(d+.d+),")                  // adc1
+            .number("[^,]*,")                    // device id
+            .number("(d+),")                     // odometer
+            .groupEnd()
             .any()
             .compile();
 
@@ -115,36 +130,53 @@ public class TmgProtocolDecoder extends BaseProtocolDecoder {
 
         position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
 
-        position.setValid(parser.nextInt(0) > 0);
+        position.setValid(parser.nextInt() > 0);
         position.setLatitude(parser.nextCoordinate());
         position.setLongitude(parser.nextCoordinate());
-        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble(0)));
-        position.setCourse(parser.nextDouble(0));
-        position.setAltitude(parser.nextDouble(0));
-
-        position.set(Position.KEY_HDOP, parser.nextDouble(0));
-        position.set(Position.KEY_SATELLITES, parser.nextInt(0));
-        position.set(Position.KEY_SATELLITES_VISIBLE, parser.nextInt(0));
-        position.set(Position.KEY_OPERATOR, parser.next());
-        position.set(Position.KEY_RSSI, parser.nextInt(0));
-        position.set(Position.KEY_IGNITION, parser.nextInt(0) == 1);
-        position.set(Position.KEY_BATTERY, parser.nextDouble(0));
-        position.set(Position.KEY_POWER, parser.nextDouble(0));
-
-        int input = parser.nextBinInt(0);
-        int output = parser.nextBinInt(0);
-
-        if (!BitUtil.check(input, 0)) {
-            position.set(Position.KEY_ALARM, Position.ALARM_SOS);
+        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
+        position.setCourse(parser.nextDouble());
+
+        if (parser.hasNext(15)) {
+
+            position.setAltitude(parser.nextDouble());
+
+            position.set(Position.KEY_HDOP, parser.nextDouble());
+            position.set(Position.KEY_SATELLITES, parser.nextInt());
+            position.set(Position.KEY_SATELLITES_VISIBLE, parser.nextInt());
+            position.set(Position.KEY_OPERATOR, parser.next());
+            position.set(Position.KEY_RSSI, parser.nextInt());
+            position.set(Position.KEY_IGNITION, parser.nextInt() == 1);
+            position.set(Position.KEY_BATTERY, parser.nextDouble());
+            position.set(Position.KEY_POWER, parser.nextDouble());
+
+            int input = parser.nextBinInt();
+            int output = parser.nextBinInt();
+
+            if (!BitUtil.check(input, 0)) {
+                position.set(Position.KEY_ALARM, Position.ALARM_SOS);
+            }
+
+            position.set(Position.KEY_INPUT, input);
+            position.set(Position.KEY_OUTPUT, output);
+
+            position.set(Position.PREFIX_ADC + 1, parser.nextDouble());
+            position.set(Position.PREFIX_ADC + 2, parser.nextDouble());
+            position.set(Position.KEY_VERSION_FW, parser.next());
+            position.set(Position.KEY_DRIVER_UNIQUE_ID, parser.next());
+
         }
 
-        position.set(Position.KEY_INPUT, input);
-        position.set(Position.KEY_OUTPUT, output);
+        if (parser.hasNext()) {
+
+            position.set(Position.KEY_RSSI, parser.nextInt());
+            position.set(Position.KEY_SATELLITES, parser.nextInt());
+            position.set(Position.KEY_BATTERY_LEVEL, parser.nextInt());
+            position.set(Position.KEY_IGNITION, parser.nextInt() == 1);
+            position.set(Position.PREFIX_ADC + 1, parser.nextDouble());
+            position.set(Position.PREFIX_ADC + 2, parser.nextDouble());
+            position.set(Position.KEY_ODOMETER, parser.nextInt());
 
-        position.set(Position.PREFIX_ADC + 1, parser.nextDouble(0));
-        position.set(Position.PREFIX_ADC + 2, parser.nextDouble(0));
-        position.set(Position.KEY_VERSION_FW, parser.next());
-        position.set(Position.KEY_DRIVER_UNIQUE_ID, parser.next());
+        }
 
         return position;
     }