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
|
/*
* Copyright 2017 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 org.jboss.netty.channel.Channel;
import org.jboss.netty.handler.codec.http.HttpRequest;
import org.jboss.netty.handler.codec.http.HttpResponseStatus;
import org.traccar.BaseHttpProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.helper.BitUtil;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Position;
import javax.json.Json;
import javax.json.JsonArray;
import javax.json.JsonObject;
import java.io.StringReader;
import java.net.SocketAddress;
import java.nio.charset.StandardCharsets;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.LinkedList;
import java.util.List;
import java.util.TimeZone;
public class DmtHttpProtocolDecoder extends BaseHttpProtocolDecoder {
public DmtHttpProtocolDecoder(DmtHttpProtocol protocol) {
super(protocol);
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
HttpRequest request = (HttpRequest) msg;
JsonObject root = Json.createReader(
new StringReader(request.getContent().toString(StandardCharsets.US_ASCII))).readObject();
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, root.getString("IMEI"));
if (deviceSession == null) {
sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
return null;
}
List<Position> positions = new LinkedList<>();
JsonArray records = root.getJsonArray("Records");
for (int i = 0; i < records.size(); i++) {
Position position = new Position();
position.setProtocol(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
JsonObject record = records.getJsonObject(i);
position.set(Position.KEY_INDEX, record.getInt("SeqNo"));
position.set(Position.KEY_EVENT, record.getInt("Reason"));
position.setDeviceTime(dateFormat.parse(record.getString("DateUTC")));
JsonArray fields = record.getJsonArray("Fields");
for (int j = 0; j < fields.size(); j++) {
JsonObject field = fields.getJsonObject(j);
switch (field.getInt("FType")) {
case 0:
position.setFixTime(dateFormat.parse(field.getString("GpsUTC")));
position.setLatitude(field.getJsonNumber("Lat").doubleValue());
position.setLongitude(field.getJsonNumber("Long").doubleValue());
position.setAltitude(field.getInt("Alt"));
position.setSpeed(UnitsConverter.knotsFromCps(field.getInt("Spd")));
position.setCourse(field.getInt("Head"));
position.setAccuracy(field.getInt("PosAcc"));
position.setValid(field.getInt("GpsStat") > 0);
break;
case 2:
int input = field.getInt("DIn");
int output = field.getInt("DOut");
position.set(Position.KEY_IGNITION, BitUtil.check(input, 0));
position.set(Position.KEY_INPUT, input);
position.set(Position.KEY_OUTPUT, output);
position.set(Position.KEY_STATUS, field.getInt("DevStat"));
break;
case 6:
JsonObject adc = field.getJsonObject("AnalogueData");
if (adc.containsKey("1")) {
position.set(Position.KEY_BATTERY, adc.getInt("1") * 0.001);
}
if (adc.containsKey("2")) {
position.set(Position.KEY_POWER, adc.getInt("2") * 0.01);
}
if (adc.containsKey("3")) {
position.set(Position.KEY_DEVICE_TEMP, adc.getInt("3") * 0.01);
}
if (adc.containsKey("4")) {
position.set(Position.KEY_RSSI, adc.getInt("4"));
}
if (adc.containsKey("5")) {
position.set("solarPower", adc.getInt("5") * 0.001);
}
break;
default:
break;
}
}
positions.add(position);
}
sendResponse(channel, HttpResponseStatus.OK);
return positions;
}
}
|
