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
|
/*
* Copyright 2013 - 2014 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.util.Date;
import java.util.LinkedList;
import java.util.List;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.traccar.BaseProtocolDecoder;
import org.traccar.ServerManager;
import org.traccar.helper.Log;
import org.traccar.model.ExtendedInfoFormatter;
import org.traccar.model.Position;
public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
public RuptelaProtocolDecoder(ServerManager serverManager) {
super(serverManager);
}
public RuptelaProtocolDecoder(ServerManager serverManager, String protocol) {
super(serverManager, protocol);
}
private static final int COMMAND_RECORDS = 0x01;
@Override
protected Object decode(ChannelHandlerContext ctx, Channel channel, Object msg)
throws Exception {
ChannelBuffer buf = (ChannelBuffer) msg;
buf.readUnsignedShort(); // data length
// Identify device
String imei = String.format("%015d", buf.readLong());
long deviceId;
try {
deviceId = getDataManager().getDeviceByImei(imei).getId();
} catch(Exception error) {
Log.warning("Unknown device - " + imei);
return null;
}
int type = buf.readUnsignedByte();
if (type == COMMAND_RECORDS) {
List<Position> positions = new LinkedList<Position>();
buf.readUnsignedByte(); // records left
int count = buf.readUnsignedByte();
for (int i = 0; i < count; i++) {
Position position = new Position();
ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter(getProtocol());
position.setDeviceId(deviceId);
// Time
position.setTime(new Date(buf.readUnsignedInt() * 1000));
buf.readUnsignedByte(); // timestamp extension
buf.readUnsignedByte(); // priority (reserved)
// Location
position.setLongitude(buf.readInt() / 10000000.0);
position.setLatitude(buf.readInt() / 10000000.0);
position.setAltitude(buf.readUnsignedShort() / 10.0);
position.setCourse(buf.readUnsignedShort() / 100.0);
// Validity
int satellites = buf.readUnsignedByte();
extendedInfo.set("satellites", satellites);
position.setValid(satellites >= 3);
position.setSpeed(buf.readUnsignedShort() * 0.539957);
extendedInfo.set("hdop", buf.readUnsignedByte() / 10.0);
buf.readUnsignedByte();
// Read 1 byte data
int cnt = buf.readUnsignedByte();
for (int j = 0; j < cnt; j++) {
extendedInfo.set("io" + buf.readUnsignedByte(), buf.readUnsignedByte());
}
// Read 2 byte data
cnt = buf.readUnsignedByte();
for (int j = 0; j < cnt; j++) {
extendedInfo.set("io" + buf.readUnsignedByte(), buf.readUnsignedShort());
}
// Read 4 byte data
cnt = buf.readUnsignedByte();
for (int j = 0; j < cnt; j++) {
extendedInfo.set("io" + buf.readUnsignedByte(), buf.readUnsignedInt());
}
// Read 8 byte data
cnt = buf.readUnsignedByte();
for (int j = 0; j < cnt; j++) {
extendedInfo.set("io" + buf.readUnsignedByte(), buf.readLong());
}
position.setExtendedInfo(extendedInfo.toString());
positions.add(position);
}
// Acknowledgement
if (channel != null) {
byte[] response = {0x00, 0x02, 0x64, 0x01, 0x13, (byte)0xbc};
channel.write(ChannelBuffers.wrappedBuffer(response));
}
return positions;
}
return null;
}
}
|
