1 files changed, 107 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/LdplProtocolDecoder.java b/src/org/traccar/protocol/LdplProtocolDecoder.java
new file mode 100644
index 000000000..74b17d5b6
--- /dev/null
+++ b/src/org/traccar/protocol/LdplProtocolDecoder.java
@@ -0,0 +1,107 @@
+package org.traccar.protocol;
+
+import java.net.SocketAddress;
+import java.util.regex.Pattern;
+
+import org.jboss.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.Protocol;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.Parser;
+import org.traccar.helper.Parser.CoordinateFormat;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.model.Position;
+
+public class LdplProtocolDecoder extends BaseProtocolDecoder {
+
+    public LdplProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+                .text("*ID")                         // start of frame
+                .number("(d+),")                     // command_code
+                .number("(d+),")                     // imei
+                .number("(dd)(dd)(dd),")             // current_date
+                .number("(dd)(dd)(dd),")             // current_time
+                .expression("([A|V]),")              // gps_fix
+                .number("(dd)(dd).?(d+),([NS]),")    // latitude
+                .number("(ddd)(dd).?(d+),([EW]),")   // longitude
+                .number("(d{1,3}.dd),")              // speed
+                .number("(d{1,3}.dd),")              // course
+                .number("(d{1,2}),")                 // sats
+                .number("(d{1,3}),")                 // gsm_signal_strength
+                .expression("([A|N|S]),")            // vehicle_status
+                .expression("([0|1]),")              // main_power_status
+                .number("(d.dd),")                   // internal_battery_voltage
+                .expression("([0|1]),")              // sos_alert
+                .expression("([0|1]),")              // body_tamper
+                .expression("([0|1])([0|1]),")       // ac_status + ign_status
+                .expression("([0|1|2]),")            // output1_status
+                .number("(d{1,3}),")                 // adc1
+                .number("(d{1,3}),")                 // adc2
+                .expression("([0-9A-Z]{3}),")        // software_version
+                .expression("([L|R]),")              // message_type
+                .expression("([0-9A-Z]{4})#")        // crc
+                .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());
+        position.set(Position.KEY_TYPE, parser.nextInt());
+
+        if (!identify(parser.next(), channel, remoteAddress)) {
+            return null;
+        }
+        position.setDeviceId(getDeviceId());
+
+        DateBuilder dateBuilder = new DateBuilder()
+        .setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt())
+        .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
+        position.setTime(dateBuilder.getDate());
+
+        if ("A".equals(parser.next())) {
+            position.setValid(true);
+        } else {
+            position.setValid(false);
+        }
+        
+        position.setLatitude(parser.nextCoordinate(CoordinateFormat.DEG_MIN_MIN_HEM));
+        position.setLongitude(parser.nextCoordinate(CoordinateFormat.DEG_MIN_MIN_HEM));
+        
+        position.setSpeed(parser.nextDouble());
+        position.setCourse(parser.nextDouble());
+        
+        position.set(Position.KEY_SATELLITES, parser.nextInt());
+        position.set(Position.KEY_GSM, parser.nextInt());
+        String vehicleStatus = parser.next();
+        position.set(Position.KEY_POWER, parser.nextInt());
+        position.set(Position.KEY_BATTERY, parser.nextDouble());
+        position.set(Position.KEY_ALARM, parser.nextInt());
+        Integer bodyTamper = parser.nextInt();
+        Integer acStatus = parser.nextInt();
+        position.set(Position.KEY_IGNITION, parser.nextInt());
+        position.set(Position.KEY_OUTPUT, parser.nextInt());
+        position.set(Position.PREFIX_ADC + 1, parser.nextInt());
+        position.set(Position.PREFIX_ADC + 2, parser.nextInt());
+        position.set(Position.KEY_VERSION, parser.next());
+        
+        if ("R".equals(parser.next())) {
+            position.set(Position.KEY_ARCHIVE, true);
+        } else {
+            position.set(Position.KEY_ARCHIVE, false);
+        }
+        
+        String checksum = parser.next();
+
+        return position;
+    }
+
+}