1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/*
* 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 java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.TimeZone;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.traccar.model.DataManager;
import org.traccar.GenericProtocolDecoder;
import org.traccar.model.Position;
/**
* Gps 103 tracker protocol decoder
*/
public class Tk103ProtocolDecoder extends GenericProtocolDecoder {
/**
* Initialize
*/
public Tk103ProtocolDecoder(DataManager dataManager, Integer resetDelay) {
super(dataManager, resetDelay);
}
/**
* Regular expressions pattern
*/
static private Pattern pattern = Pattern.compile(
"\\(" +
"(\\d+)" + // Device ID
"(.{4})" + // Command
"(\\d{15})" + // IMEI (?)
"(\\d{2})(\\d{2})(\\d{2})" + // Date (YYMMDD)
"([AV])" + // Validity
"(\\d{2})(\\d{2}.\\d{4})" + // Latitude (DDMM.MMMM)
"([NS])" +
"(\\d{3})(\\d{2}.\\d{4})" + // Longitude (DDDMM.MMMM)
"([EW])" +
"(\\d+.\\d)" + // Speed
"(\\d{2})(\\d{2})(\\d{2})" + // Time (HHMMSS)
"(\\d+.\\d{2})" + // Course
"(\\d+)" + // State
".+"); // Mileage (?)
/**
* Decode message
*/
protected Object decode(
ChannelHandlerContext ctx, Channel channel, Object msg)
throws Exception {
String sentence = (String) msg;
// Parse message
Matcher parser = pattern.matcher(sentence);
if (!parser.matches()) {
return null;
}
// Create new position
Position position = new Position();
Integer index = 1;
index += 2; // Skip Device ID and command
// Get device by IMEI
String imei = parser.group(index++);
position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
// Date
Calendar time = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
time.clear();
time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1);
time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++)));
// Validity
position.setValid(parser.group(index++).compareTo("A") == 0 ? true : false);
// Latitude
Double latitude = Double.valueOf(parser.group(index++));
latitude += Double.valueOf(parser.group(index++)) / 60;
if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
position.setLatitude(latitude);
// Longitude
Double lonlitude = Double.valueOf(parser.group(index++));
lonlitude += Double.valueOf(parser.group(index++)) / 60;
if (parser.group(index++).compareTo("W") == 0) lonlitude = -lonlitude;
position.setLongitude(lonlitude);
// Altitude
position.setAltitude(0.0);
// Speed
position.setSpeed(Double.valueOf(parser.group(index++)));
// Time
time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++)));
time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++)));
time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++)));
position.setTime(time.getTime());
// Course
position.setCourse(Double.valueOf(parser.group(index++)));
return position;
}
}
|
