1 files changed, 84 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/T57ProtocolDecoder.java b/src/org/traccar/protocol/T57ProtocolDecoder.java
new file mode 100644
index 000000000..db5f94cbb
--- /dev/null
+++ b/src/org/traccar/protocol/T57ProtocolDecoder.java
@@ -0,0 +1,84 @@
+/*
+ * 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.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.regex.Pattern;
+
+public class T57ProtocolDecoder extends BaseProtocolDecoder {
+
+    public T57ProtocolDecoder(T57Protocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("*T57#")
+            .number("Fd#")                       // type
+            .number("([^#]+)#")                  // device id
+            .number("(dd)(dd)(dd)#")             // date (ddmmyy)
+            .number("(dd)(dd)(dd)#")             // time (hhmmss)
+            .number("(dd)(dd.d+)#")              // latitude
+            .expression("([NS])#")
+            .number("(ddd)(dd.d+)#")             // longitude
+            .expression("([EW])#")
+            .expression("[^#]+#")
+            .number("(d+.d+)#")                  // speed
+            .number("(d+.d+)#")                  // altitude
+            .expression("([AV])")                // valid
+            .number("d#")                        // fix type
+            .number("(d+.d+)#")                  // battery
+            .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.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
+
+        position.setLatitude(parser.nextCoordinate());
+        position.setLongitude(parser.nextCoordinate());
+        position.setSpeed(parser.nextDouble());
+        position.setAltitude(parser.nextDouble());
+
+        position.setValid(parser.next().equals("A"));
+
+        position.set(Position.KEY_BATTERY, parser.nextDouble());
+
+        return position;
+    }
+
+}