blob: 63d9ddff388ee3bc1ab0f11713e92d4d3c4753fc (
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
|
/*
* Copyright 2002-2012 the original author or authors.
*
* 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.springframework.jdbc.datasource;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.logging.Logger;
import javax.sql.DataSource;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Abstract base class for Spring's {@link javax.sql.DataSource}
* implementations, taking care of the padding.
*
* <p>'Padding' in the context of this class means default implementations
* for certain methods from the {@code DataSource} interface, such as
* {@link #getLoginTimeout()}, {@link #setLoginTimeout(int)}, and so forth.
*
* @author Juergen Hoeller
* @since 07.05.2003
* @see DriverManagerDataSource
*/
public abstract class AbstractDataSource implements DataSource {
/** Logger available to subclasses */
protected final Log logger = LogFactory.getLog(getClass());
/**
* Returns 0, indicating the default system timeout is to be used.
*/
@Override
public int getLoginTimeout() throws SQLException {
return 0;
}
/**
* Setting a login timeout is not supported.
*/
@Override
public void setLoginTimeout(int timeout) throws SQLException {
throw new UnsupportedOperationException("setLoginTimeout");
}
/**
* LogWriter methods are not supported.
*/
@Override
public PrintWriter getLogWriter() {
throw new UnsupportedOperationException("getLogWriter");
}
/**
* LogWriter methods are not supported.
*/
@Override
public void setLogWriter(PrintWriter pw) throws SQLException {
throw new UnsupportedOperationException("setLogWriter");
}
//---------------------------------------------------------------------
// Implementation of JDBC 4.0's Wrapper interface
//---------------------------------------------------------------------
@Override
@SuppressWarnings("unchecked")
public <T> T unwrap(Class<T> iface) throws SQLException {
if (iface.isInstance(this)) {
return (T) this;
}
throw new SQLException("DataSource of type [" + getClass().getName() +
"] cannot be unwrapped as [" + iface.getName() + "]");
}
@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
return iface.isInstance(this);
}
//---------------------------------------------------------------------
// Implementation of JDBC 4.1's getParentLogger method
//---------------------------------------------------------------------
@Override
public Logger getParentLogger() {
return Logger.getLogger(Logger.GLOBAL_LOGGER_NAME);
}
}
|
