Implement GL200 GSM message support

2 files changed, 57 insertions, 1 deletions

diff --git a/src/org/traccar/protocol/Gl200ProtocolDecoder.java b/src/org/traccar/protocol/Gl200ProtocolDecoder.java
index 1fe1a3b5c..d7ee57782 100644
--- a/src/org/traccar/protocol/Gl200ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gl200ProtocolDecoder.java
@@ -247,6 +247,19 @@ public class Gl200ProtocolDecoder extends BaseProtocolDecoder {
             .text("$").optional()
             .compile();
 
+    private static final Pattern PATTERN_GSM = new PatternBuilder()
+            .text("+RESP:GTGSM,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("(?:STR|CTN|NMR|RTL),")  // fix type
+            .expression("(.*)")                  // cells
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private static final Pattern PATTERN = new PatternBuilder()
             .text("+").expression("(?:RESP|BUFF):GT...,")
             .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
@@ -624,6 +637,40 @@ public class Gl200ProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private Object decodeGsm(Channel channel, SocketAddress remoteAddress, String sentence) {
+        Parser parser = new Parser(PATTERN_GSM, sentence);
+        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());
+
+        getLastLocation(position, null);
+
+        Network network = new Network();
+
+        String[] data = parser.next().split(",");
+        for (int i = 0; i < 6; i++) {
+            if (!data[i * 6].isEmpty()) {
+                network.addCellTower(CellTower.from(
+                        Integer.parseInt(data[i * 6]), Integer.parseInt(data[i * 6 + 1]),
+                        Integer.parseInt(data[i * 6 + 2], 16), Integer.parseInt(data[i * 6 + 3], 16),
+                        Integer.parseInt(data[i * 6 + 4])));
+            }
+        }
+
+        position.setNetwork(network);
+
+        return position;
+    }
+
     private Object decodeOther(Channel channel, SocketAddress remoteAddress, String sentence, String type) {
         Parser parser = new Parser(PATTERN, sentence);
         if (!parser.matches()) {
@@ -768,6 +815,9 @@ public class Gl200ProtocolDecoder extends BaseProtocolDecoder {
                 case "WIF":
                     result = decodeWif(channel, remoteAddress, sentence);
                     break;
+                case "GSM":
+                    result = decodeGsm(channel, remoteAddress, sentence);
+                    break;
                 case "VER":
                     result = decodeVer(channel, remoteAddress, sentence);
                     break;
diff --git a/test/org/traccar/protocol/Gl200ProtocolDecoderTest.java b/test/org/traccar/protocol/Gl200ProtocolDecoderTest.java
index e2ac176f0..a09e11449 100644
--- a/test/org/traccar/protocol/Gl200ProtocolDecoderTest.java
+++ b/test/org/traccar/protocol/Gl200ProtocolDecoderTest.java
@@ -10,7 +10,13 @@ public class Gl200ProtocolDecoderTest extends ProtocolTest {
 
         Gl200ProtocolDecoder decoder = new Gl200ProtocolDecoder(new Gl200Protocol());
 
-        verifyNothing(decoder, text(
+        verifyAttributes(decoder, text(
+                "+RESP:GTGSM,400201,862365030025161,STR,0234,0015,003a,62a2,16,,0234,0015,003a,56a2,14,,0234,0015,003a,062a,13,,0234,0015,003a,32d9,11,,0234,0015,003a,56a0,11,,,,,,,,0234,0015,003a,7489,17,,20170219200048,0033$"));
+
+        verifyAttributes(decoder, text(
+                "+RESP:GTGSM,400201,862365030025161,STR,0234,0015,003a,56a2,18,,0234,0015,003a,77bc,14,,0234,0015,003a,32d9,12,,0234,0015,003a,062a,12,,0234,0015,003a,62a2,11,,0234,0015,003a,56a0,10,,0234,0015,003a,7489,15,,20170219080049,0030$"));
+
+        verifyAttributes(decoder, text(
                 "+RESP:GTGSM,400201,862365030034940,STR,0234,0030,0870,2469,19,,0234,0030,0870,35ee,18,,0234,0030,0870,16ac,12,,0234,0030,0870,16b2,11,,0234,0030,0870,360f,6,,0234,0030,0870,165d,6,,0234,0030,0870,35ef,17,,20170215220049,008D$"));
 
         verifyPosition(decoder, text(