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 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.nio.charset.Charset;
import java.util.Calendar;
import java.util.TimeZone;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.helper.Checksum;
import org.traccar.model.Event;
import org.traccar.model.Position;
public class CityeasyProtocolDecoder extends BaseProtocolDecoder {
public CityeasyProtocolDecoder(CityeasyProtocol protocol) {
super(protocol);
}
private static final Pattern PATTERN = Pattern.compile(
"(\\d{4})(\\d{2})(\\d{2})" + // Date
"(\\d{2})(\\d{2})(\\d{2})," + // Time
"([AV])," + // Validity
"(\\d+)," + // Satellites
"([NS]),(\\d+\\.\\d+)," + // Latitude
"([EW]),(\\d+\\.\\d+)," + // Longitude
"(\\d+\\.\\d)," + // Speed
"(\\d+\\.\\d)," + // HDOP
"(\\d+\\.\\d);" + // Altitude
"(\\d+)," + // MCC
"(\\d+)," + // MNC
"(\\d+)," + // LAC
"(\\d+)" + // Cell
".*");
public static final int MSG_ADDRESS_REQUEST = 0x0001;
public static final int MSG_STATUS = 0x0002;
public static final int MSG_LOCATION_REPORT = 0x0003;
public static final int MSG_LOCATION_REQUEST = 0x0004;
public static final int MSG_LOCATION_INTERVAL = 0x0005;
public static final int MSG_PHONE_NUMBER = 0x0006;
public static final int MSG_MONITORING = 0x0007;
public static final int MSG_TIMEZONE = 0x0008;
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg)
throws Exception {
ChannelBuffer buf = (ChannelBuffer) msg;
buf.skipBytes(2); // header
buf.readUnsignedShort(); // length
String imei = ChannelBuffers.hexDump(buf.readBytes(7));
if (!identify(imei, channel, null, false) && !identify(imei + Checksum.luhn(Long.parseLong(imei)), channel)) {
return null;
}
int type = buf.readUnsignedShort();
if (type == MSG_LOCATION_REPORT || type == MSG_LOCATION_REQUEST) {
String sentence = buf.toString(buf.readerIndex(), buf.readableBytes() - 8, Charset.defaultCharset());
Matcher parser = PATTERN.matcher(sentence);
if (!parser.matches()) {
return null;
}
Position position = new Position();
position.setProtocol(getProtocolName());
position.setDeviceId(getDeviceId());
Integer index = 1;
// Date and time
Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
time.clear();
time.set(Calendar.YEAR, Integer.parseInt(parser.group(index++)));
time.set(Calendar.MONTH, Integer.parseInt(parser.group(index++)) - 1);
time.set(Calendar.DAY_OF_MONTH, Integer.parseInt(parser.group(index++)));
time.set(Calendar.HOUR_OF_DAY, Integer.parseInt(parser.group(index++)));
time.set(Calendar.MINUTE, Integer.parseInt(parser.group(index++)));
time.set(Calendar.SECOND, Integer.parseInt(parser.group(index++)));
position.setTime(time.getTime());
position.setValid(parser.group(index++).equals("A"));
position.set(Event.KEY_SATELLITES, parser.group(index++));
// Latitude
String hemisphere = parser.group(index++);
double latitude = Double.parseDouble(parser.group(index++));
if (hemisphere.compareTo("S") == 0) {
latitude = -latitude;
}
position.setLatitude(latitude);
// Longitude
hemisphere = parser.group(index++);
double longitude = Double.parseDouble(parser.group(index++));
if (hemisphere.compareTo("W") == 0) {
longitude = -longitude;
}
position.setLongitude(longitude);
position.setSpeed(Double.parseDouble(parser.group(index++)));
position.set(Event.KEY_HDOP, Double.parseDouble(parser.group(index++)));
position.setAltitude(Double.parseDouble(parser.group(index++)));
position.set(Event.KEY_MCC, Integer.parseInt(parser.group(index++)));
position.set(Event.KEY_MNC, Integer.parseInt(parser.group(index++)));
position.set(Event.KEY_LAC, Integer.parseInt(parser.group(index++)));
position.set(Event.KEY_CELL, Integer.parseInt(parser.group(index++)));
return position;
}
return null;
}
}
|
