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C3P0PooledConnection.java
Package: jforum-2.1.8-src.zip [view]
Upload User: gdxydsw
Upload Date: 2019-01-29
Package Size: 16721k
Code Size: 5k
Category:
Java Develop
Development Platform:
Java
- /*
- * Copyright (c) JForum Team
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms,
- * with or without modification, are permitted provided
- * that the following conditions are met:
- *
- * 1) Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the
- * following disclaimer.
- * 2) Redistributions in binary form must reproduce the
- * above copyright notice, this list of conditions and
- * the following disclaimer in the documentation and/or
- * other materials provided with the distribution.
- * 3) Neither the name of "Rafael Steil" nor
- * the names of its contributors may be used to endorse
- * or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
- * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
- * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
- * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
- * IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
- *
- * Created on 30/11/2005 17:07:51
- * The JForum Project
- * http://www.jforum.net
- */
- package net.jforum;
- import java.lang.reflect.Method;
- import java.sql.Connection;
- import net.jforum.exceptions.DatabaseException;
- import net.jforum.util.preferences.ConfigKeys;
- import net.jforum.util.preferences.SystemGlobals;
- import com.mchange.v2.c3p0.ComboPooledDataSource;
- import com.mchange.v2.c3p0.DataSources;
- /**
- * @author Rafael Steil
- * @version $Id: C3P0PooledConnection.java,v 1.7 2007/04/12 02:11:52 rafaelsteil Exp $
- */
- public class C3P0PooledConnection extends DBConnection
- {
- private ComboPooledDataSource ds;
- /**
- *
- * @see net.jforum.DBConnection#init()
- */
- public void init() throws Exception
- {
- this.ds = new ComboPooledDataSource();
- this.ds.setDriverClass(SystemGlobals.getValue(ConfigKeys.DATABASE_CONNECTION_DRIVER));
- this.ds.setJdbcUrl(SystemGlobals.getValue(ConfigKeys.DATABASE_CONNECTION_STRING));
- this.ds.setMinPoolSize(SystemGlobals.getIntValue(ConfigKeys.DATABASE_POOL_MIN));
- this.ds.setMaxPoolSize(SystemGlobals.getIntValue(ConfigKeys.DATABASE_POOL_MAX));
- this.ds.setIdleConnectionTestPeriod(SystemGlobals.getIntValue(ConfigKeys.DATABASE_PING_DELAY));
- this.extraParams();
- }
- private void extraParams()
- {
- String extra = SystemGlobals.getValue(ConfigKeys.C3P0_EXTRA_PARAMS);
- if (extra != null && extra.trim().length() > 0) {
- String[] p = extra.split(";");
- for (int i = 0; i < p.length; i++) {
- String[] kv = p[i].trim().split("=");
- if (kv.length == 2) {
- this.invokeSetter(kv[0], kv[1]);
- }
- }
- }
- }
- /**
- * Huge hack to invoke methods without the need of an external configuration file
- * and whithout knowing the argument's type
- */
- private void invokeSetter(String propertyName, String value)
- {
- try {
- String setter = "set" + propertyName.substring(0, 1).toUpperCase() + propertyName.substring(1);
- Method[] methods = this.ds.getClass().getMethods();
- for (int i = 0; i < methods.length; i++) {
- Method method = methods[i];
- if (method.getName().equals(setter)) {
- Class[] paramTypes = method.getParameterTypes();
- if (paramTypes[0] == String.class) {
- method.invoke(this.ds, new Object[] { value });
- }
- else if (paramTypes[0] == int.class) {
- method.invoke(this.ds, new Object[] { new Integer(value) });
- }
- else if (paramTypes[0] == boolean.class) {
- method.invoke(this.ds, new Object[] { Boolean.valueOf(value) });
- }
- }
- }
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- }
- /**
- * @see net.jforum.DBConnection#getConnection()
- */
- public Connection getConnection()
- {
- try {
- return this.ds.getConnection();
- }
- catch (Exception e) {
- throw new DatabaseException(e);
- }
- }
- /**
- * @see net.jforum.DBConnection#releaseConnection(java.sql.Connection)
- */
- public void releaseConnection(Connection conn)
- {
- if (conn==null) {
- return;
- }
- try {
- conn.close();
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- }
- /**
- * @see net.jforum.DBConnection#realReleaseAllConnections()
- */
- public void realReleaseAllConnections() throws Exception
- {
- DataSources.destroy(this.ds);
- }
- }