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-rw-r--r--src/org/traccar/protocol/UlbotechProtocolDecoder.java122
1 files changed, 122 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/UlbotechProtocolDecoder.java b/src/org/traccar/protocol/UlbotechProtocolDecoder.java
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+++ b/src/org/traccar/protocol/UlbotechProtocolDecoder.java
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+/*
+ * Copyright 2012 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.database.DataManager;
+import org.traccar.helper.ChannelBufferTools;
+import org.traccar.helper.Log;
+import org.traccar.model.ExtendedInfoFormatter;
+import org.traccar.model.Position;
+
+import java.util.Calendar;
+import java.util.Date;
+import java.util.Properties;
+import java.util.TimeZone;
+
+public class UlbotechProtocolDecoder extends BaseProtocolDecoder {
+
+ public UlbotechProtocolDecoder(DataManager dataManager, String protocol, Properties properties) {
+ super(dataManager, protocol, properties);
+ }
+
+ private String readImei(ChannelBuffer buf) {
+ int b = buf.readUnsignedByte();
+ StringBuilder imei = new StringBuilder();
+ imei.append(b & 0x0F);
+ for (int i = 0; i < 7; i++) {
+ b = buf.readUnsignedByte();
+ imei.append((b & 0xF0) >> 4);
+ imei.append(b & 0x0F);
+ }
+ return imei.toString();
+ }
+
+ private static final short DATA_GPS = 0x01;
+ private static final short DATA_LBS = 0x02;
+ private static final short DATA_STATUS = 0x03;
+ private static final short DATA_MILAGE = 0x04;
+ private static final short DATA_ADC = 0x05;
+ private static final short DATA_GEOFENCE = 0x06;
+ private static final short DATA_OBD2 = 0x07;
+ private static final short DATA_FUEL = 0x08;
+ private static final short DATA_OBD2_ALARM = 0x09;
+ private static final short DATA_HARSH_DRIVER = 0x0A;
+ private static final short DATA_CANBUS = 0x0B;
+
+ @Override
+ protected Object decode(
+ ChannelHandlerContext ctx, Channel channel, Object msg)
+ throws Exception {
+
+ ChannelBuffer buf = (ChannelBuffer) msg;
+
+ buf.readByte(); // header
+ buf.readUnsignedByte(); // version
+ buf.readUnsignedByte(); // type
+
+ // Create new position
+ Position position = new Position();
+ ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter(getProtocol());
+
+ // Get device id
+ String imei = ChannelBufferTools.readHexString(buf, 16).substring(1);
+ try {
+ position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
+ } catch(Exception error) {
+ Log.warning("Unknown device - " + imei);
+ }
+
+ // Time
+ long seconds = buf.readUnsignedInt() & 0x7fffffffl;
+ seconds += 946684800l; // 2000-01-01 00:00
+ position.setTime(new Date(seconds * 1000));
+
+ while (buf.readableBytes() > 3) {
+
+ short type = buf.readUnsignedByte();
+ short length = buf.readUnsignedByte();
+
+ switch (type) {
+
+ case DATA_GPS:
+
+ position.setValid(true);
+ position.setLatitude(buf.readInt() / 1000000.0);
+ position.setLongitude(buf.readInt() / 1000000.0);
+ position.setAltitude(0.0);
+ position.setSpeed(buf.readUnsignedShort() * 0.539957);
+ position.setCourse((double) buf.readUnsignedShort());
+ extendedInfo.set("hdop", buf.readUnsignedShort());
+
+ break;
+
+
+ default:
+ buf.skipBytes(length);
+ break;
+ }
+ }
+
+ position.setExtendedInfo(extendedInfo.toString());
+ return position;
+ }
+
+}