Implement eSeal CT-C protocol

1 files changed, 154 insertions, 0 deletions

diff --git a/src/org/traccar/protocol/EsealProtocolDecoder.java b/src/org/traccar/protocol/EsealProtocolDecoder.java
new file mode 100644
index 000000000..67b45b33f
--- /dev/null
+++ b/src/org/traccar/protocol/EsealProtocolDecoder.java
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2018 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.Context;
+import org.traccar.DeviceSession;
+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.regex.Pattern;
+
+public class EsealProtocolDecoder extends BaseProtocolDecoder {
+
+    private String config;
+
+    public EsealProtocolDecoder(EsealProtocol protocol) {
+        super(protocol);
+        config = Context.getConfig().getString(getProtocolName() + ".config");
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("##S,")
+            .expression("[^,]+,")                // device type
+            .number("(d+),")                     // device id
+            .number("d+,")                       // customer id
+            .expression("[^,]+,")                // firmware version
+            .expression("([^,]+),")              // type
+            .number("(d+),")                     // index
+            .number("(dddd)-(dd)-(dd),")         // date
+            .number("(dd):(dd):(dd),")           // time
+            .number("d+,")                       // interval
+            .expression("([AV]),")               // validity
+            .number("(d+.d+)([NS]) ")            // latitude
+            .number("(d+.d+)([EW]),")            // longitude
+            .number("(d+),")                     // course
+            .number("(d+),")                     // speed
+            .expression("([^,]+),")              // door
+            .number("(d+.d+),")                  // acceleration
+            .expression("([^,]+),")              // nfc
+            .number("(d+.d+),")                  // battery
+            .number("(-?d+),")                   // rssi
+            .text("E##")
+            .compile();
+
+    private void sendResponse(Channel channel, String prefix, String type, String payload) {
+        if (channel != null) {
+            channel.write(prefix + type + "," + payload + ",E##\r\n");
+        }
+    }
+
+    private String decodeAlarm(String type) {
+        switch (type) {
+            case "Event-Door":
+                return Position.ALARM_DOOR;
+            case "Event-Shock":
+                return Position.ALARM_SHOCK;
+            case "Event-Drop":
+                return Position.ALARM_FALL_DOWN;
+            case "Event-Lock":
+                return Position.ALARM_LOCK;
+            case "Event-RC-Unlock":
+                return Position.ALARM_UNLOCK;
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        String sentence = (String) msg;
+        Parser parser = new Parser(PATTERN, sentence);
+        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());
+
+        String type = parser.next();
+        String prefix = sentence.substring(0, sentence.indexOf(type));
+        int index = parser.nextInt();
+
+        position.set(Position.KEY_INDEX, index);
+        position.set(Position.KEY_ALARM, decodeAlarm(type));
+
+        switch (type) {
+            case "Startup":
+                sendResponse(channel, prefix, type + " ACK", index + "," + config);
+                break;
+            case "Normal":
+            case "Termination":
+            case "Event-Door":
+            case "Event-Shock":
+            case "Event-Drop":
+            case "Event-Lock":
+            case "Event-RC-Unlock":
+                sendResponse(channel, prefix, type + " ACK", String.valueOf(index));
+                break;
+            default:
+                break;
+        }
+
+        position.setTime(parser.nextDateTime());
+        position.setValid(parser.next().equals("A"));
+        position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+        position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+        position.setCourse(parser.nextInt());
+        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt()));
+
+        switch (parser.next()) {
+            case "Open":
+                position.set(Position.KEY_DOOR, true);
+                break;
+            case "Close":
+                position.set(Position.KEY_DOOR, false);
+                break;
+            default:
+                break;
+        }
+
+        position.set(Position.KEY_ACCELERATION, parser.nextDouble());
+        position.set("nfc", parser.next());
+        position.set(Position.KEY_BATTERY, parser.nextDouble());
+        position.set(Position.KEY_RSSI, parser.nextInt());
+
+        return position;
+    }
+
+}