aboutsummaryrefslogtreecommitdiff
path: root/src/org/traccar/protocol/LdplProtocolDecoder.java
blob: 52d7cd020a13a169fba082ed940d20d6bc8e8ef1 (plain)
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
/*
 * 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.net.SocketAddress;
import java.util.regex.Pattern;

import org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.Protocol;
import org.traccar.helper.DateBuilder;
import org.traccar.helper.Parser;
import org.traccar.helper.Parser.CoordinateFormat;
import org.traccar.helper.PatternBuilder;
import org.traccar.model.Position;

public class LdplProtocolDecoder extends BaseProtocolDecoder {

    public LdplProtocolDecoder(Protocol protocol) {
        super(protocol);
    }

    private static final Pattern PATTERN = new PatternBuilder()
        .text("*ID")                       // start of frame
        .number("(d+),")                     // command code
        .number("(d+),")                     // imei
        .number("(dd)(dd)(dd),")             // current date
        .number("(dd)(dd)(dd),")             // current time
        .expression("([A|V]),")              // gps fix
        .number("(dd)(dd).?(d+),([NS]),")    // latitude
        .number("(ddd)(dd).?(d+),([EW]),")   // longitude
        .number("(d{1,3}.dd),")              // speed
        .number("(d{1,3}.dd),")              // course
        .number("(d{1,2}),")                 // sats
        .number("(d{1,3}),")                 // gsm signal strength
        .expression("([A|N|S]),")            // vehicle status
        .expression("([0|1]),")              // main power status
        .number("(d.dd),")                   // internal battery voltage
        .expression("([0|1]),")              // sos alert
        .expression("([0|1]),")              // body tamper
        .expression("([0|1])([0|1]),")       // ac status + ign_status
        .expression("([0|1|2]),")            // output1 status
        .number("(d{1,3}),")                 // adc1
        .number("(d{1,3}),")                 // adc2
        .expression("([0-9A-Z]{3}),")        // software version
        .expression("([L|R]),")              // message type
        .expression("([0-9A-Z]{4})#")        // crc
        .compile();

    @Override
    protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

        Parser parser = new Parser(PATTERN, (String) msg);
        if (!parser.matches()) {
            return null;
        }

        Position position = new Position();
        position.setProtocol(getProtocolName());
        position.set(Position.KEY_TYPE, parser.nextInt());

        if (!identify(parser.next(), channel, remoteAddress)) {
            return null;
        }
        position.setDeviceId(getDeviceId());

        DateBuilder dateBuilder = new DateBuilder()
        .setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt())
        .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
        position.setTime(dateBuilder.getDate());

        if ("A".equals(parser.next())) {
            position.setValid(true);
        } else {
            position.setValid(false);
        }
        
        position.setLatitude(parser.nextCoordinate(CoordinateFormat.DEG_MIN_MIN_HEM));
        position.setLongitude(parser.nextCoordinate(CoordinateFormat.DEG_MIN_MIN_HEM));
        
        position.setSpeed(parser.nextDouble());
        position.setCourse(parser.nextDouble());
        
        position.set(Position.KEY_SATELLITES, parser.nextInt());
        position.set(Position.KEY_GSM, parser.nextInt());
        parser.next(); // vehicle status
        position.set(Position.KEY_POWER, parser.nextInt());
        position.set(Position.KEY_BATTERY, parser.nextDouble());
        position.set(Position.KEY_ALARM, parser.nextInt());
        parser.nextInt(); // body tamper
        parser.nextInt(); // acStatus
        position.set(Position.KEY_IGNITION, parser.nextInt());
        position.set(Position.KEY_OUTPUT, parser.nextInt());
        position.set(Position.PREFIX_ADC + 1, parser.nextInt());
        position.set(Position.PREFIX_ADC + 2, parser.nextInt());
        position.set(Position.KEY_VERSION, parser.next());
        position.set(Position.KEY_ARCHIVE, parser.next().equals("R"));
        
        parser.next(); // checksum

        return position;
    }

}