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
|
/*
* 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.database;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import javax.json.Json;
import javax.json.JsonArray;
import javax.json.JsonArrayBuilder;
import javax.json.JsonObjectBuilder;
public class ResultSetConverter {
private static final DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ssZ");
public static JsonArray convert(ResultSet rs) throws SQLException {
JsonArrayBuilder json = Json.createArrayBuilder();
ResultSetMetaData rsmd = rs.getMetaData();
while (rs.next()) {
int numColumns = rsmd.getColumnCount();
JsonObjectBuilder obj = Json.createObjectBuilder();
for (int i = 1; i <= numColumns; i++) {
String columnName = rsmd.getColumnName(i).toLowerCase();
switch (rsmd.getColumnType(i)) {
case java.sql.Types.BIGINT:
obj.add(columnName, rs.getInt(columnName));
break;
case java.sql.Types.BOOLEAN:
obj.add(columnName, rs.getBoolean(columnName));
break;
case java.sql.Types.DOUBLE:
obj.add(columnName, rs.getDouble(columnName));
break;
case java.sql.Types.FLOAT:
obj.add(columnName, rs.getFloat(columnName));
break;
case java.sql.Types.INTEGER:
obj.add(columnName, rs.getInt(columnName));
break;
case java.sql.Types.NVARCHAR:
obj.add(columnName, rs.getNString(columnName));
break;
case java.sql.Types.VARCHAR:
obj.add(columnName, rs.getString(columnName));
break;
case java.sql.Types.DATE:
obj.add(columnName, dateFormat.format(rs.getDate(columnName)));
break;
case java.sql.Types.TIMESTAMP:
obj.add(columnName, dateFormat.format(rs.getTimestamp(columnName)));
break;
default:
break;
}
}
json.add(obj.build());
}
return json.build();
}
}
|
