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authorAnton Tananaev <anton.tananaev@gmail.com>2018-06-11 22:00:45 +1200
committerAnton Tananaev <anton.tananaev@gmail.com>2018-06-11 22:00:45 +1200
commit86ad45c63c9a9e9bee59a8cc621416e1396f9c89 (patch)
treeeb5377d76a81c25aafae1c4e876c9ab434d707d4 /src/org/traccar/protocol/FreematicsProtocolDecoder.java
parentcac3ddae39938a0d25c9b2a1f7fa87ecb9dd2b77 (diff)
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Implement Freematics UDP protocol
Diffstat (limited to 'src/org/traccar/protocol/FreematicsProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/FreematicsProtocolDecoder.java103
1 files changed, 103 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/FreematicsProtocolDecoder.java b/src/org/traccar/protocol/FreematicsProtocolDecoder.java
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+++ b/src/org/traccar/protocol/FreematicsProtocolDecoder.java
@@ -0,0 +1,103 @@
+/*
+ * 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.DeviceSession;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.Date;
+
+public class FreematicsProtocolDecoder extends BaseProtocolDecoder {
+
+ public FreematicsProtocolDecoder(FreematicsProtocol protocol) {
+ super(protocol);
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ String sentence = (String) msg;
+ int startIndex = sentence.indexOf('#');
+ int endIndex = sentence.indexOf('*');
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, sentence.substring(0, startIndex));
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+ position.setValid(true);
+
+ DateBuilder dateBuilder = new DateBuilder(new Date());
+
+ for (String pair : sentence.substring(startIndex + 1, endIndex).split(",")) {
+ String[] data = pair.split("=");
+ int key = Integer.parseInt(data[0], 16);
+ String value = data[1];
+ switch (key) {
+ case 0x11:
+ value = ("000000" + value).substring(value.length());
+ dateBuilder.setDateReverse(
+ Integer.parseInt(value.substring(0, 2)),
+ Integer.parseInt(value.substring(2, 4)),
+ Integer.parseInt(value.substring(4)));
+ break;
+ case 0x10:
+ value = ("00000000" + value).substring(value.length());
+ dateBuilder.setTime(
+ Integer.parseInt(value.substring(0, 2)),
+ Integer.parseInt(value.substring(2, 4)),
+ Integer.parseInt(value.substring(4, 6)),
+ Integer.parseInt(value.substring(6)) * 10);
+ break;
+ case 0xA:
+ position.setLatitude(Double.parseDouble(value));
+ break;
+ case 0xB:
+ position.setLongitude(Double.parseDouble(value));
+ break;
+ case 0xC:
+ position.setAltitude(Integer.parseInt(value));
+ break;
+ case 0xD:
+ position.setLatitude(UnitsConverter.knotsFromKph(Integer.parseInt(value)));
+ break;
+ case 0xE:
+ position.setCourse(Integer.parseInt(value));
+ break;
+ case 0xF:
+ position.set(Position.KEY_SATELLITES, Integer.parseInt(value));
+ break;
+ default:
+ position.set(data[0], value);
+ break;
+ }
+
+ }
+
+ position.setTime(dateBuilder.getDate());
+
+ return position;
+ }
+
+}