From 9a5891a1d2fdca01a04b4f47db375347b504322b Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sat, 7 Dec 2019 22:32:42 -0800
Subject: Implement S168 protocol

---
 .../org/traccar/protocol/S168ProtocolDecoder.java  | 81 ++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 src/main/java/org/traccar/protocol/S168ProtocolDecoder.java

(limited to 'src/main/java/org/traccar/protocol/S168ProtocolDecoder.java')

diff --git a/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java b/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java
new file mode 100644
index 000000000..71aff1a65
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2019 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 io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.Protocol;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.TimeZone;
+
+public class S168ProtocolDecoder extends BaseProtocolDecoder {
+
+    public S168ProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        String sentence = (String) msg;
+        String[] values = sentence.split("#");
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, values[1]);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        String content = values[4];
+        String[] fragments = content.split(";");
+        for (String fragment : fragments) {
+
+            int dataIndex = fragment.indexOf(':');
+            String type = fragment.substring(0, dataIndex);
+            values = fragment.substring(dataIndex + 1).split(",");
+            int index = 0;
+
+            switch (type) {
+                case "GDATA":
+                    position.setValid(values[index++].equals("A"));
+                    position.set(Position.KEY_SATELLITES, Integer.parseInt(values[index++]));
+                    DateFormat dateFormat = new SimpleDateFormat("yyMMddHHmmss");
+                    dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+                    position.setTime(dateFormat.parse(values[index++]));
+                    position.setLatitude(Double.parseDouble(values[index++]));
+                    position.setLongitude(Double.parseDouble(values[index++]));
+                    position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(values[index++])));
+                    position.setCourse(Integer.parseInt(values[index++]));
+                    position.setAltitude(Integer.parseInt(values[index++]));
+                    break;
+                default:
+                    break;
+            }
+        }
+
+        return position.getAttributes().containsKey(Position.KEY_SATELLITES) ? position : null;
+    }
+
+}
-- 
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