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1 /*
2  * Copyright (c) Rafael Steil
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms,
6  * with or without modification, are permitted provided
7  * that the following conditions are met:
8  *
9  * 1) Redistributions of source code must retain the above
10  * copyright notice, this list of conditions and the
11  * following disclaimer.
12  * 2) Redistributions in binary form must reproduce the
13  * above copyright notice, this list of conditions and
14  * the following disclaimer in the documentation and/or
15  * other materials provided with the distribution.
16  * 3) Neither the name of "Rafael Steil" nor
17  * the names of its contributors may be used to endorse
18  * or promote products derived from this software without
19  * specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
22  * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
23  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
24  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
27  * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
32  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
33  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
34  * IN CONTRACT, STRICT LIABILITY, OR TORT
35  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
36  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
37  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
38  *
39  * This file creation date: 25/08/2004 23:32:20
40  * The JForum Project
41  * http://www.jforum.net
42  */
43 package net.jforum;
44
45 import java.sql.Connection JavaDoc;
46 import java.sql.DriverManager JavaDoc;
47
48 import net.jforum.exceptions.DatabaseException;
49 import net.jforum.util.preferences.ConfigKeys;
50 import net.jforum.util.preferences.SystemGlobals;
51
52 /**
53  * Non-pooled connection implementation.
54  * This class will ask a new conneciton to the database on every
55  * <code>getConnection()</code> class. Uses of this class include
56  * systems where a connection pool is not permited or the
57  * connections' life time is too short, not justifying to have
58  * a connection pool.
59  *
60  * @author Rafael Steil
61  * @version $Id: SimpleConnection.java,v 1.12 2005/11/29 00:26:53 rafaelsteil Exp $
62  */
63 public class SimpleConnection extends DBConnection
64 {
65     /**
66      * @see net.jforum.Connection#init()
67      */
68     public void init() throws Exception JavaDoc
69     {
70         try {
71             Class.forName(SystemGlobals.getValue(ConfigKeys.DATABASE_CONNECTION_DRIVER));
72             
73             // Try to validate the connection url
74 Connection JavaDoc conn = this.getConnection();
75             if (conn != null) {
76                 this.releaseConnection(conn);
77             }
78             
79             this.isDatabaseUp = true;
80         }
81         catch (Exception JavaDoc e) {
82             this.isDatabaseUp = false;
83             throw e;
84         }
85     }
86
87     /**
88      * @see net.jforum.Connection#getConnection()
89      */
90     public Connection JavaDoc getConnection()
91     {
92         try {
93             return DriverManager.getConnection(SystemGlobals.getValue(ConfigKeys.DATABASE_CONNECTION_STRING));
94         }
95         catch (Exception JavaDoc e) {
96             e.printStackTrace();
97             throw new DatabaseException(e);
98         }
99     }
100
101     /**
102      * @see net.jforum.Connection#releaseConnection(java.sql.Connection)
103      */
104     public void releaseConnection(Connection JavaDoc conn)
105     {
106         try {
107             conn.close();
108         }
109         catch (Exception JavaDoc e) {}
110     }
111     
112     /**
113      * @see net.jforum.DBConnection#realReleaseAllConnections()
114      */
115     public void realReleaseAllConnections() throws Exception JavaDoc {}
116 }
117
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