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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
* Copyright 2012 - 2013 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.net.SocketAddress;
import java.util.Calendar;
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.BaseProtocolDecoder;
import org.traccar.model.Event;
import org.traccar.model.Position;
public class V680ProtocolDecoder extends BaseProtocolDecoder {
public V680ProtocolDecoder(V680Protocol protocol) {
super(protocol);
}
private static final Pattern pattern = Pattern.compile(
"(?:#(\\d+)#" + // IMEI
"([^#]*)#)?" + // User
"(\\d+)#" + // Fix
"([^#]+)#" + // Password
"([^#]+)#" + // Event
"(\\d+)#" + // Packet number
"([^#]+)?#?" + // GSM base station
"(?:[^#]+#)?" +
"(\\d+)?(\\d{2}\\.\\d+)," + // Longitude (DDDMM.MMMM)
"([EW])," +
"(\\d+)?(\\d{2}\\.\\d+)," + // Latitude (DDMM.MMMM)
"([NS])," +
"(\\d+\\.\\d+)," + // Speed
"(\\d+\\.?\\d*)?#" + // Course
"(\\d{2})(\\d{2})(\\d{2})#" + // Date (DDMMYY)
"(\\d{2})(\\d{2})(\\d{2})" + // Time (HHMMSS)
".*");
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg)
throws Exception {
String sentence = (String) msg;
sentence = sentence.trim();
// Detect device ID
if (sentence.length() == 16) {
String imei = sentence.substring(1, sentence.length());
identify(imei, channel);
} else {
// Parse message
Matcher parser = pattern.matcher(sentence);
if (!parser.matches()) {
return null;
}
// Create new position
Position position = new Position();
position.setProtocol(getProtocolName());
Integer index = 1;
// Get device by IMEI
String imei = parser.group(index++);
if (imei != null) {
identify(imei, channel);
}
if (!hasDeviceId()) {
return null;
}
position.setDeviceId(getDeviceId());
// User
position.set("user", parser.group(index++));
// Validity
position.setValid(Integer.valueOf(parser.group(index++)) > 0);
// Password
position.set("password", parser.group(index++));
// Event
position.set(Event.KEY_EVENT, parser.group(index++));
// Packet number
position.set("packet", parser.group(index++));
// GSM base station
position.set(Event.KEY_GSM, parser.group(index++));
// Longitude
String lon = parser.group(index++);
Double longitude = (lon != null) ? Double.valueOf(lon) : 0.0;
longitude += Double.valueOf(parser.group(index++)) / 60;
if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
position.setLongitude(longitude);
// Latitude
String lat = parser.group(index++);
Double latitude = (lat != null) ? Double.valueOf(lat) : 0.0;
latitude += Double.valueOf(parser.group(index++)) / 60;
if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
position.setLatitude(latitude);
// Speed and Course
position.setSpeed(Double.valueOf(parser.group(index++)));
String course = parser.group(index++);
if (course != null) {
position.setCourse(Double.valueOf(course));
}
// Date
Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
time.clear();
int day = Integer.valueOf(parser.group(index++));
int month = Integer.valueOf(parser.group(index++));
if (day == 0 && month == 0) {
return null; // invalid date
}
time.set(Calendar.DAY_OF_MONTH, day);
time.set(Calendar.MONTH, month - 1);
time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++)));
// Time
time.set(Calendar.HOUR_OF_DAY, 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());
return position;
}
return null;
}
}
|
