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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* Copyright 2012 - 2015 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.regex.Pattern;
import org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Event;
import org.traccar.model.Position;
public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
public Gps103ProtocolDecoder(Gps103Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("imei:")
.number("(d+),") // imei
.expression("([^,]+),") // alarm
.number("(dd)/?(dd)/?(dd) ?") // local date
.number("(dd):?(dd)(?:dd)?,") // local time
.expression("[^,]*,")
.expression("[FL],") // full / low
.groupBegin()
.number("(dd)(dd)(dd).(d+)") // time utc (hhmmss.sss)
.or()
.number("(?:d{1,5}.d+)?")
.groupEnd()
.text(",")
.expression("([AV]),") // validity
.expression("([NS]),").optional()
.number("(d+)(dd.d+),") // latitude (ddmm.mmmm)
.expression("([NS]),").optional()
.expression("([EW]),").optional()
.number("(d+)(dd.d+),") // longitude (dddmm.mmmm)
.expression("([EW])?,").optional()
.number("(d+.?d*)?,?") // speed
.number("(d+.?d*)?,?") // course
.number("(d+.?d*)?,?") // altitude
.expression("([^,;]+)?,?")
.expression("([^,;]+)?,?")
.expression("([^,;]+)?,?")
.expression("([^,;]+)?,?")
.expression("([^,;]+)?,?")
.any()
.compile();
private static final Pattern PATTERN_NETWORK = new PatternBuilder()
.text("imei:")
.number("(d+),") // imei
.expression("[^,]+,") // alarm
.number("d*,,")
.text("L,,,")
.number("(x+),,") // lac
.number("(x+),,,") // cid
.any()
.compile();
private static final Pattern PATTERN_HANDSHAKE = new PatternBuilder()
.number("##,imei:(d+),A")
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String sentence = (String) msg;
// Send response #1
if (sentence.contains("##")) {
if (channel != null) {
channel.write("LOAD", remoteAddress);
Parser handshakeParser = new Parser(PATTERN_HANDSHAKE, sentence);
if (handshakeParser.matches()) {
identify(handshakeParser.next(), channel);
}
}
return null;
}
// Send response #2
if (sentence.length() == 15 && Character.isDigit(sentence.charAt(0))) {
if (channel != null) {
channel.write("ON", remoteAddress);
}
return null;
}
Position position = new Position();
position.setProtocol(getProtocolName());
Parser parser = new Parser(PATTERN_NETWORK, sentence);
if (parser.matches()) {
if (!identify(parser.next(), channel, remoteAddress)) {
return null;
}
position.setDeviceId(getDeviceId());
getLastLocation(position, null);
position.set(Event.KEY_LAC, parser.nextInt(16));
position.set(Event.KEY_CID, parser.nextInt(16));
return position;
}
parser = new Parser(PATTERN, sentence);
if (!parser.matches()) {
return null;
}
String imei = parser.next();
if (!identify(imei, channel, remoteAddress)) {
return null;
}
position.setDeviceId(getDeviceId());
String alarm = parser.next();
position.set(Event.KEY_ALARM, alarm);
if (channel != null && alarm.equals("help me")) {
channel.write("**,imei:" + imei + ",E;", remoteAddress);
}
DateBuilder dateBuilder = new DateBuilder()
.setDate(parser.nextInt(), parser.nextInt(), parser.nextInt());
int localHours = parser.nextInt();
int localMinutes = parser.nextInt();
String utcHours = parser.next();
String utcMinutes = parser.next();
dateBuilder.setTime(localHours, localMinutes, parser.nextInt(), parser.nextInt());
// Timezone calculation
if (utcHours != null && utcMinutes != null) {
int deltaMinutes = (localHours - Integer.parseInt(utcHours)) * 60;
deltaMinutes += localMinutes - Integer.parseInt(utcMinutes);
if (deltaMinutes <= -12 * 60) {
deltaMinutes += 24 * 60;
} else if (deltaMinutes > 12 * 60) {
deltaMinutes -= 24 * 60;
}
dateBuilder.addMinute(-deltaMinutes);
}
position.setTime(dateBuilder.getDate());
position.setValid(parser.next().equals("A"));
position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN_HEM));
position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN_HEM));
position.setSpeed(parser.nextDouble());
position.setCourse(parser.nextDouble());
position.setAltitude(parser.nextDouble());
for (int i = 1; i <= 5; i++) {
position.set(Event.PREFIX_IO + i, parser.next());
}
return position;
}
}
|
