package org.apache.torque.adapter;/* * Copyright 2001-2004 The Apache Software Foundation. * * 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. */import java.util.HashMap;import java.util.Map;/** * This class creates different {@link org.apache.torque.adapter.DB} * objects based on specified JDBC driver name. * * @author <a href="mailto:frank.kim@clearink.com">Frank Y. Kim</a> * @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a> * @author <a href="mailto:bmclaugh@algx.net">Brett McLaughlin</a> * @author <a href="mailto:ralf@reswi.ruhr.de">Ralf Stranzenbach</a> * @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a> * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> * @version $Id: DBFactory.java,v 1.37 2005/01/31 19:43:55 tfischer Exp $ */public class DBFactory{    /**     * JDBC driver to Torque Adapter map.     */    private static Map adapters = new HashMap(40);    /**     * Initialize the JDBC driver to Torque Adapter map.     */    static    {        adapters.put("com.ibm.as400.access.AS400JDBCDriver", DBDB2400.class);        adapters.put("COM.ibm.db2.jdbc.app.DB2Driver", DBDB2App.class);        adapters.put("COM.ibm.db2.jdbc.net.DB2Driver", DBDB2Net.class);        adapters.put("COM.cloudscape.core.JDBCDriver", DBCloudscape.class);        adapters.put("org.hsql.jdbcDriver", DBHypersonicSQL.class);        adapters.put("org.hsqldb.jdbcDriver", DBHypersonicSQL.class);        adapters.put("interbase.interclient.Driver", DBInterbase.class);        adapters.put("org.enhydra.instantdb.jdbc.idbDriver", DBInstantDB.class);        adapters.put("com.microsoft.jdbc.sqlserver.SQLServerDriver",            DBMSSQL.class);        adapters.put("com.jnetdirect.jsql.JSQLDriver", DBMSSQL.class);        adapters.put("org.gjt.mm.mysql.Driver", DBMM.class);        adapters.put("oracle.jdbc.driver.OracleDriver", DBOracle.class);        adapters.put("org.postgresql.Driver", DBPostgres.class);        adapters.put("com.sap.dbtech.jdbc.DriverSapDB", DBSapDB.class);        adapters.put("com.sybase.jdbc.SybDriver", DBSybase.class);        adapters.put("com.sybase.jdbc2.jdbc.SybDriver", DBSybase.class);        adapters.put("weblogic.jdbc.pool.Driver", DBWeblogic.class);        adapters.put("org.axiondb.jdbc.AxionDriver", DBAxion.class);        adapters.put("com.informix.jdbc.IfxDriver", DBInformix.class);        adapters.put("sun.jdbc.odbc.JdbcOdbcDriver", DBOdbc.class);        adapters.put("com.ibm.db2.jcc.DB2Driver", DBDerby.class);        adapters.put("org.apache.derby.jdbc.EmbeddedDriver", DBDerby.class);        // add some short names to be used when drivers are not used        adapters.put("as400", DBDB2400.class);        adapters.put("db2app", DBDB2App.class);        adapters.put("db2net", DBDB2Net.class);        adapters.put("cloudscape", DBCloudscape.class);        adapters.put("hypersonic", DBHypersonicSQL.class);        adapters.put("interbase", DBInterbase.class);        adapters.put("instantdb", DBInstantDB.class);        adapters.put("mssql", DBMSSQL.class);        adapters.put("mysql", DBMM.class);        adapters.put("oracle", DBOracle.class);        adapters.put("postgresql", DBPostgres.class);        adapters.put("sapdb", DBSapDB.class);        adapters.put("sybase", DBSybase.class);        adapters.put("weblogic", DBWeblogic.class);        adapters.put("axion", DBAxion.class);        adapters.put("informix", DBInformix.class);        adapters.put("odbc", DBOdbc.class);        adapters.put("msaccess", DBOdbc.class);        adapters.put("derby", DBDerby.class);        adapters.put("", DBNone.class);    }    /**     * Creates a new instance of the Torque database adapter associated     * with the specified JDBC driver or adapter key.     *     * @param driver The fully-qualified name of the JDBC driver to     * create a new adapter instance for or a shorter form adapter key.     * @return An instance of a Torque database adapter.     * @throws InstantiationException throws if the JDBC driver could not be     *      instantiated     */    public static DB create(String driver)        throws InstantiationException    {        Class adapterClass = (Class) adapters.get(driver);        if (adapterClass != null)        {            try            {                DB adapter = (DB) adapterClass.newInstance();                // adapter.setJDBCDriver(driver);                return adapter;            }            catch (IllegalAccessException e)            {                throw new InstantiationException(                    "Could not instantiate adapter for JDBC driver: "                    + driver                    + ": Assure that adapter bytecodes are in your classpath");            }        }        else        {            throw new InstantiationException(                "Unknown JDBC driver: "                + driver                + ": Check your configuration file");        }    }}