aboutsummaryrefslogtreecommitdiff
path: root/src/org/traccar/protocol/TramigoProtocolDecoder.java
blob: e0bab0483bd566c7494f59547eb51e7188ef129b (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
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
/*
 * Copyright 2014 - 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 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.database.DataManager;
import org.traccar.helper.Log;
import org.traccar.model.ExtendedInfoFormatter;
import org.traccar.model.Position;

import java.nio.charset.Charset;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class TramigoProtocolDecoder extends BaseProtocolDecoder {

    public TramigoProtocolDecoder(String protocol) {
        super(protocol);
    }

    private static final int MSG_COMPACT = 0x0100;
    private static final int MSG_FULL = 0x00FE;

    @Override
    protected Object decode(
            ChannelHandlerContext ctx, Channel channel, Object msg)
            throws Exception {

        ChannelBuffer buf = (ChannelBuffer) msg;

        int protocol = buf.readUnsignedByte();
        buf.readUnsignedByte(); // version id
        int index = buf.readUnsignedShort();
        int type = buf.readUnsignedShort();
        buf.readUnsignedShort(); // length
        buf.readUnsignedShort(); // mask
        buf.readUnsignedShort(); // checksum
        long id = buf.readUnsignedInt();
        buf.readUnsignedInt(); // time

        // Create new position
        Position position = new Position();
        ExtendedInfoFormatter extendedInfo = new ExtendedInfoFormatter(getProtocol());
        extendedInfo.set("index", index);
        position.setValid(true);

        // Get device id
        if (!identify(String.valueOf(id))) {
            return null;
        }
        position.setDeviceId(getDeviceId());

        if (protocol == 0x01 && (type == MSG_COMPACT || type == MSG_FULL)) {

            // TODO: send ack

            buf.readUnsignedShort(); // report trigger
            buf.readUnsignedShort(); // state flag

            position.setLatitude(buf.readUnsignedInt() * 0.0000001);
            position.setLongitude(buf.readUnsignedInt() * 0.0000001);
            position.setAltitude(0.0);

            buf.readUnsignedShort(); // GSM signal quality
            buf.readUnsignedShort(); // satellites in fix
            buf.readUnsignedShort(); // satellites in track
            buf.readUnsignedShort(); // GPS antenna state

            position.setSpeed(buf.readUnsignedShort() * 0.194384);
            position.setCourse((double )buf.readUnsignedShort());

            buf.readUnsignedInt(); // distance

            extendedInfo.set("battery", buf.readUnsignedShort());

            buf.readUnsignedShort(); // battery charger status

            position.setTime(new Date(buf.readUnsignedInt() * 1000));

            // TODO: parse other data

            position.setExtendedInfo(extendedInfo.toString());
            return position;

        } else if (protocol == 0x80) {

            if (channel != null) {
                channel.write(ChannelBuffers.copiedBuffer("gprs,ack," + index, Charset.defaultCharset()));
            }

            String sentence = buf.toString(Charset.defaultCharset());

            // Coordinates
            Pattern pattern = Pattern.compile("(-?\\d+\\.\\d+), (-?\\d+\\.\\d+)");
            Matcher matcher = pattern.matcher(sentence);
            if (!matcher.find()) {
                return null;
            }
            position.setLatitude(Double.valueOf(matcher.group(1)));
            position.setLongitude(Double.valueOf(matcher.group(2)));
            position.setAltitude(0.0);

            // Speed and Course
            pattern = Pattern.compile("([NSWE]{1,2}) with speed (\\d+) km/h");
            matcher = pattern.matcher(sentence);
            if (matcher.find()) {
                position.setSpeed(Double.valueOf(matcher.group(2)) * 0.539957);
                position.setCourse(0.0); // matcher.group(1) for course
            } else {
                position.setSpeed(0.0);
                position.setCourse(0.0);
            }

            // Time
            pattern = Pattern.compile("(\\d{1,2}:\\d{2} \\w{3} \\d{1,2})");
            matcher = pattern.matcher(sentence);
            if (!matcher.find()) {
                return null;
            }
            DateFormat dateFormat = new SimpleDateFormat("HH:mm MMM d yyyy", Locale.ENGLISH);
            position.setTime(dateFormat.parse(matcher.group(1) + " " + Calendar.getInstance().get(Calendar.YEAR)));

            position.setExtendedInfo(extendedInfo.toString());
            return position;
        }

        return null;
    }

}