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
|
/*
* Copyright 2018 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 io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import io.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.Protocol;
import org.traccar.helper.BitUtil;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Position;
import java.net.SocketAddress;
import java.nio.charset.StandardCharsets;
import java.util.regex.Pattern;
public class TekProtocolDecoder extends BaseProtocolDecoder {
public TekProtocolDecoder(Protocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = new PatternBuilder()
.number(",d+,")
.number("(dd)(dd)(dd).d,") // time (hhmmss)
.number("(dd)(dd.d+)") // latitude
.expression("([NS]),")
.number("(ddd)(dd.d+)") // longitude
.expression("([EW]),")
.number("(d+.d+),") // hdop
.number("(d+.d+),") // altitude
.number("(d+),") // fix mode
.number("(d+.d+),") // course
.number("d+.d+,") // speed km
.number("(d+.d+),") // speed kn
.number("(dd)(dd)(dd),") // date (ddmmyy)
.number("(d+),") // satellites
.any()
.compile();
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
ByteBuf buf = (ByteBuf) msg;
buf.readUnsignedByte(); // product type
buf.readUnsignedByte(); // hardware version
buf.readUnsignedByte(); // firmware version
buf.readUnsignedByte(); // contact reason
buf.readUnsignedByte(); // alarm / status
buf.readUnsignedByte(); // rssi
buf.readUnsignedByte(); // battery / status
String imei = ByteBufUtil.hexDump(buf.readBytes(8)).substring(1);
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
if (deviceSession == null) {
return null;
}
int type = BitUtil.to(buf.readUnsignedByte(), 6);
buf.readUnsignedByte(); // length
if (type == 4 || type == 8) {
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
int count = buf.readUnsignedShort();
buf.readUnsignedByte(); // hours / tickets
buf.readUnsignedByte(); // error code
buf.readUnsignedByte(); // reserved
buf.readUnsignedByte(); // logger speed
buf.readUnsignedByte(); // login time
buf.readUnsignedByte(); // minutes
for (int i = 0; i < count; i++) {
position.set("rssi" + (i + 1), buf.readUnsignedByte());
position.set("temp" + (i + 1), buf.readUnsignedByte() - 30);
int data = buf.readUnsignedShort();
position.set("src" + (i + 1), BitUtil.from(data, 10));
position.set("ullage" + (i + 1), BitUtil.to(data, 10));
}
return position;
} else if (type == 17) {
String sentence = buf.toString(StandardCharsets.US_ASCII);
Parser parser = new Parser(PATTERN, sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
DateBuilder dateBuilder = new DateBuilder()
.setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
position.set(Position.KEY_HDOP, parser.nextDouble());
position.setAltitude(parser.nextDouble());
position.setValid(parser.nextInt() > 0);
position.setCourse(parser.nextDouble());
position.setSpeed(parser.nextDouble());
dateBuilder.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
position.setTime(dateBuilder.getDate());
return position;
}
return null;
}
}
|
