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
|
/*
* Copyright 2019 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.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.Protocol;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.CellTower;
import org.traccar.model.Network;
import org.traccar.model.Position;
import org.traccar.model.WifiAccessPoint;
import java.net.SocketAddress;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
public class MictrackProtocolDecoder extends BaseProtocolDecoder {
public MictrackProtocolDecoder(Protocol protocol) {
super(protocol);
}
private Date decodeTime(String data) throws ParseException {
DateFormat dateFormat = new SimpleDateFormat("yyMMddHHmmss");
dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
return dateFormat.parse(data);
}
private String decodeAlarm(int event) {
switch (event) {
case 5:
return Position.ALARM_SOS;
case 8:
return Position.ALARM_LOW_BATTERY;
case 9:
return Position.ALARM_GEOFENCE_ENTER;
case 10:
return Position.ALARM_GEOFENCE_EXIT;
case 12:
return Position.ALARM_POWER_OFF;
default:
return null;
}
}
private void decodeLocation(Position position, String data) throws ParseException {
int index = 0;
String[] values = data.split("\\+");
position.set(Position.KEY_SATELLITES, Integer.parseInt(values[index++]));
position.setValid(true);
position.setTime(decodeTime(values[index++]));
position.setLatitude(Double.parseDouble(values[index++]));
position.setLongitude(Double.parseDouble(values[index++]));
position.setSpeed(UnitsConverter.knotsFromMps(Double.parseDouble(values[index++])));
position.setCourse(Integer.parseInt(values[index++]));
int event = Integer.parseInt(values[index++]);
position.set(Position.KEY_ALARM, decodeAlarm(event));
position.set(Position.KEY_EVENT, event);
position.set(Position.KEY_BATTERY, Integer.parseInt(values[index++]) * 0.001);
}
private void decodeCell(Network network, String data) {
String[] values = data.split(",");
int length = values.length % 5 == 0 ? 5 : 4;
for (int i = 0; i < values.length / length; i++) {
int mnc = Integer.parseInt(values[i * length]);
int cid = Integer.parseInt(values[i * length + 1]);
int lac = Integer.parseInt(values[i * length + 2]);
int mcc = Integer.parseInt(values[i * length + 3]);
network.addCellTower(CellTower.from(mcc, mnc, lac, cid));
}
}
private void decodeWifi(Network network, String data) {
String[] values = data.split(",");
for (int i = 0; i < values.length / 2; i++) {
network.addWifiAccessPoint(WifiAccessPoint.from(values[i * 2], Integer.parseInt(values[i * 2 + 1])));
}
}
private void decodeNetwork(Position position, String data, boolean hasWifi, boolean hasCell) throws ParseException {
int index = 0;
String[] values = data.split("\\+");
getLastLocation(position, decodeTime(values[index++]));
Network network = new Network();
if (hasWifi) {
decodeWifi(network, values[index++]);
}
if (hasCell) {
decodeCell(network, values[index++]);
}
position.setNetwork(network);
int event = Integer.parseInt(values[index++]);
position.set(Position.KEY_ALARM, decodeAlarm(event));
position.set(Position.KEY_EVENT, event);
position.set(Position.KEY_BATTERY, Integer.parseInt(values[index++]) * 0.001);
}
private void decodeStatus(Position position, String data) throws ParseException {
int index = 0;
String[] values = data.split("\\+");
position.set(Position.KEY_SATELLITES, Integer.parseInt(values[index++]));
getLastLocation(position, decodeTime(values[index++]));
index += 4; // fix values
int event = Integer.parseInt(values[index++]);
position.set(Position.KEY_ALARM, decodeAlarm(event));
position.set(Position.KEY_EVENT, event);
position.set(Position.KEY_BATTERY, Integer.parseInt(values[index++]) * 0.001);
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String[] fragments = ((String) msg).split(";");
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, fragments[2]);
if (deviceSession == null) {
return null;
}
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
switch (fragments[3]) {
case "R0":
decodeLocation(position, fragments[4]);
break;
case "R1":
decodeNetwork(position, fragments[4], true, false);
break;
case "R2":
case "R3":
decodeNetwork(position, fragments[4], false, true);
break;
case "R12":
case "R13":
decodeNetwork(position, fragments[4], true, true);
break;
case "RH":
decodeStatus(position, fragments[4]);
break;
default:
return null;
}
return position;
}
}
|
