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1 /*** 2 * Redistribution and use of this software and associated documentation 3 * ("Software"), with or without modification, are permitted provided 4 * that the following conditions are met: 5 * 6 * 1. Redistributions of source code must retain copyright 7 * statements and notices. Redistributions must also contain a 8 * copy of this document. 9 * 10 * 2. Redistributions in binary form must reproduce the 11 * above copyright notice, this list of conditions and the 12 * following disclaimer in the documentation and/or other 13 * materials provided with the distribution. 14 * 15 * 3. The name "Exolab" must not be used to endorse or promote 16 * products derived from this Software without prior written 17 * permission of Exoffice Technologies. For written permission, 18 * please contact info@exolab.org. 19 * 20 * 4. Products derived from this Software may not be called "Exolab" 21 * nor may "Exolab" appear in their names without prior written 22 * permission of Exoffice Technologies. Exolab is a registered 23 * trademark of Exoffice Technologies. 24 * 25 * 5. Due credit should be given to the Exolab Project 26 * (http://www.exolab.org/). 27 * 28 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT 30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 32 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 39 * OF THE POSSIBILITY OF SUCH DAMAGE. 40 * 41 * Copyright 2003 (C) Exoffice Technologies Inc. All Rights Reserved. 42 */ 43 package org.exolab.jms.persistence; 44 45 import java.sql.Connection; 46 import java.sql.SQLException; 47 import javax.sql.DataSource; 48 49 import org.apache.commons.dbcp.BasicDataSource; 50 51 52 /*** 53 * Wrapper around the DBCP connection manager 54 * 55 * @version $Revision: 1.4 $ $Date: 2003/10/28 07:27:29 $ 56 * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a> 57 */ 58 public class DBCPConnectionManager extends AbstractConnectionManager { 59 60 /*** 61 * The data source 62 */ 63 private DataSource _dataSource; 64 65 /*** 66 * Default constructor 67 */ 68 public DBCPConnectionManager() { 69 } 70 71 /*** 72 * Initialise the connection manager. This must be called before a call to 73 * {@link #getConnection} is made and after all the properties have been 74 * set. 75 */ 76 public void init() throws PersistenceException { 77 long evictionIntervalMS = getEvictionInterval() * 1000; 78 long minIdleTimeMS = getMinIdleTime() * 1000; 79 80 String testQuery = getTestQuery(); 81 boolean testWhileIdle = false; 82 boolean testOnBorrow = false; 83 84 if (testQuery != null) { 85 testWhileIdle = true; 86 testOnBorrow = getTestBeforeUse(); 87 } 88 89 BasicDataSource dataSource = new BasicDataSource(); 90 dataSource.setUsername(getUser()); 91 dataSource.setPassword(getPassword()); 92 dataSource.setDriverClassName(getDriver()); 93 dataSource.setUrl(getURL()); 94 dataSource.setDefaultAutoCommit(false); 95 dataSource.setPoolPreparedStatements(true); 96 97 // configure pooling 98 dataSource.setMaxActive(getMaxActive()); 99 dataSource.setMaxIdle(getMaxIdle()); 100 dataSource.setValidationQuery(testQuery); 101 dataSource.setTestOnBorrow(getTestBeforeUse()); 102 dataSource.setTimeBetweenEvictionRunsMillis(evictionIntervalMS); 103 dataSource.setMinEvictableIdleTimeMillis(minIdleTimeMS); 104 dataSource.setTestWhileIdle(testWhileIdle); 105 106 _dataSource = dataSource; 107 } 108 109 /*** 110 * Retrieve a connection to the underlying database from the pool of 111 * connections 112 * 113 * @return a connection to the database 114 * @throws PersistenceException if a connection cannot be retrieved 115 */ 116 public Connection getConnection() throws PersistenceException { 117 Connection connection; 118 try { 119 connection = _dataSource.getConnection(); 120 } catch (SQLException exception) { 121 throw new PersistenceException("Failed to get pooled connection", 122 exception); 123 } 124 125 return connection; 126 } 127 128 } //-- DBCPConnectionManager

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