Java tutorial
/******************************************************************************* * ENdoSnipe 5.0 - (https://github.com/endosnipe) * * The MIT License (MIT) * * Copyright (c) 2012 Acroquest Technology Co.,Ltd. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. ******************************************************************************/ package jp.co.acroquest.endosnipe.data.db; import java.sql.SQLException; import javax.sql.DataSource; import jp.co.acroquest.endosnipe.common.logger.ENdoSnipeLogger; import jp.co.acroquest.endosnipe.data.LogMessageCodes; import org.apache.commons.dbcp.ConnectionFactory; import org.apache.commons.dbcp.DriverManagerConnectionFactory; import org.apache.commons.dbcp.PoolableConnectionFactory; import org.apache.commons.dbcp.PoolingDataSource; import org.apache.commons.pool.ObjectPool; /** * H2?????<br /> * * @author fujii * */ public class H2DataSourceCreator extends AbstractDataSourceCreator implements LogMessageCodes { private static final ENdoSnipeLogger LOGGER = ENdoSnipeLogger.getLogger(H2DataSourceCreator.class); private static final String USER_NAME = "sa"; private static final String PASSWORD = ""; /** * {@inheritDoc} */ public DataSource createPoolingDataSource(final String dbname, final boolean connectOnlyExists) throws SQLException { try { Class.forName("org.h2.Driver"); String uri = createDatabaseURI(dbname, connectOnlyExists); ConnectionFactory connectionFactory = new DriverManagerConnectionFactory(uri, USER_NAME, PASSWORD); // ????? StackObjectPool ?? // ???????? ConnectionManager manager = ConnectionManager.getInstance(); ObjectPool connectionPool = manager.getConnectionPool(uri); if (connectionPool == null) { connectionPool = manager.createNewConnectionPool(uri); } new PoolableConnectionFactory(connectionFactory, connectionPool, null, null, false, true); return new PoolingDataSource(connectionPool); } catch (Exception ex) { LOGGER.log(EXCEPTION_OCCURED, ex, ex.getMessage()); throw new SQLException(ex.getMessage()); } } /** * URI ????<br /> * * @param dbname ?? * @param connectOnlyExists ?????????? <code>true</code> ? * ??????????? <code>false</code> * @return URL */ protected String createDatabaseURI(final String dbname, final boolean connectOnlyExists) { //return String.format("jdbc:h2:tcp://%s:%d/%s/%<s", hostName_, port_, dbname); String uri = String.format("jdbc:h2:%s/%s/%s", this.baseDir_, dbname, dbname); if (connectOnlyExists) { uri = uri + ";IFEXISTS=TRUE"; } return uri; } /** * {@inheritDoc} */ public boolean isTarget() { return DBManager.isDefaultDb(); } /** * {@inheritDoc} */ public String getSequenceSql(String sequenceName) { return "call next value for " + sequenceName; } /** * {@inheritDoc} */ public boolean existsDatabase(String dbName) { // ?? return true; } }