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
|
/*
* Copyright 2015 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.helper.PatternBuilder;
import java.net.SocketAddress;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.TimeZone;
import java.util.regex.Pattern;
import org.traccar.DeviceSession;
import org.traccar.helper.Parser;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Position;
public class SviasProtocolDecoder extends BaseProtocolDecoder {
private static final String MSG_KEEPALIVE = "@";
public SviasProtocolDecoder(SviasProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.text("[") // delimiter init
.number("(dddd),") // version hardware
.number("(dddd),") // version software
.number("(d+),") // counter
.number("(d+),") // imei
.any() // model or hourmeter
.number("(d+),") // date (yyyymmdd)
.number("(d+),") // time (hhmmss)
.number("(-?d+),") // longitude
.number("(-?d+),") // latitude
.number("(d+),") // speed
.number("(d+),") // course
.number("(d+),") // odometer
.number("(d+),") // input
.number("(d+),") // output / status
.number("(d+),") // flag pack input 1
.number("(d+),") // flag pack input 2
.number("(d+),") // main power voltage
.number("(d+),") // percentual power internal battery
.number("(d+),") // RSSID
.any()
.compile();
private double convertCoordinates(long v) {
return Double.valueOf(((float) ((((float) v / 1.0E7F)
- ((int) (v / 10000000L))) * 1.6666666666666667D)) + ((int) (v / 10000000L)));
}
@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg)
throws Exception {
String sentence = (String) msg;
if (!sentence.contains(":")) {
Parser parser = new Parser(PATTERN, (String) sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
String versionHard = parser.next();
String versionSoft = parser.next();
String counterInternal = parser.next();
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
if (deviceSession == null) {
return null;
}
position.setDeviceId(deviceSession.getDeviceId());
DateFormat dateFormat = new SimpleDateFormat("ddMMyyHHmmss");
dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
String date = String.format("%06d", parser.nextInt());
String time = String.format("%06d", parser.nextInt());
position.setTime(dateFormat.parse(date + time));
position.setLatitude(convertCoordinates(parser.nextLong()));
position.setLongitude(convertCoordinates(parser.nextLong()));
position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt() / 100));
position.setCourse(parser.nextInt() / 100);
position.setAltitude(0);
position.set(Position.KEY_ODOMETER, parser.nextInt());
String input = new StringBuilder(String.format("%08d",
Integer.parseInt(Integer.toString(parser.nextInt(), 2)))).reverse().toString();
String output = new StringBuilder(String.format("%08d",
Integer.parseInt(Integer.toString(parser.nextInt(), 2)))).reverse().toString();
position.set(Position.KEY_ALARM, (input.substring(0, 1).equals("1")
? Position.ALARM_SOS : null));
position.set(Position.KEY_IGNITION, input.substring(4, 5).equals("1"));
position.setValid(output.substring(0, 1).equals("1"));
String pck1 = parser.next();
String pck2 = parser.next();
position.set(Position.KEY_POWER, parser.nextInt() / 1000);
position.set(Position.KEY_BATTERY_LEVEL, parser.nextInt());
position.set(Position.KEY_RSSI, parser.nextInt());
if (channel != null) {
channel.write(MSG_KEEPALIVE);
}
return position;
} else {
//send keepalive for message check
if (channel != null) {
channel.write(MSG_KEEPALIVE);
}
return null;
}
}
}
|
