blob: 06c552d10e0cec561ffe8f130e3f4a0728b4d802 (
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
|
/*
* Copyright 2000-2013 Vaadin Ltd.
*
* 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 com.vaadin.data.util.sqlcontainer.connection;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
public class J2EEConnectionPool implements JDBCConnectionPool {
private String dataSourceJndiName;
private DataSource dataSource = null;
public J2EEConnectionPool(DataSource dataSource) {
this.dataSource = dataSource;
}
public J2EEConnectionPool(String dataSourceJndiName) {
this.dataSourceJndiName = dataSourceJndiName;
}
@Override
public Connection reserveConnection() throws SQLException {
Connection conn = getDataSource().getConnection();
conn.setAutoCommit(false);
return conn;
}
private DataSource getDataSource() throws SQLException {
if (dataSource == null) {
dataSource = lookupDataSource();
}
return dataSource;
}
private DataSource lookupDataSource() throws SQLException {
try {
InitialContext ic = new InitialContext();
return (DataSource) ic.lookup(dataSourceJndiName);
} catch (NamingException e) {
throw new SQLException(
"NamingException - Cannot connect to the database. Cause: "
+ e.getMessage());
}
}
@Override
public void releaseConnection(Connection conn) {
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
Logger.getLogger(J2EEConnectionPool.class.getName()).log(
Level.FINE, "Could not release SQL connection", e);
}
}
}
@Override
public void destroy() {
dataSource = null;
}
}
|
