/* * Copyright 2005-2010 the original author or authors. * * 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. */ package org.wamblee.support.persistence; /** * This class is used for starting the database from ant. */ public class DatabaseStarter { /** * Database class which encapsulates management of the database. */ private Class databaseClass; /** * Execution as a main program. Commandline * *
     * 
     *    DatabaseStarter <databaseClassName>
     * 
     * 
* * where the database class name must be the name of a concrete subclass of * {@link Database}. * * @param aArgs */ public static void main(String[] aArgs) throws Exception { String clazz = aArgs[0]; try { new DatabaseStarter(Class.forName(clazz)).start(); } catch (Exception e) { e.printStackTrace(); System.out.println("\nUsage: ant dbClass "); } } /** * Constructs the database starter. * * @param aClassName * Classname of the database class to use. * @throws Exception */ public DatabaseStarter(Class aClass) throws Exception { if (!Database.class.isAssignableFrom(aClass)) { throw new IllegalArgumentException("Class '" + aClass.getName() + "' is not a subclass of Database"); } databaseClass = aClass; } /** * Constructs a database starter with the derby database. * * @throws Exception */ public DatabaseStarter() throws Exception { this(DerbyDatabase.class); } /** * Starts the database. * * @throws Exception */ public void start() throws Exception { Database lDatabase = (Database) databaseClass.newInstance(); lDatabase.start(); System.out.println("Database has been started. "); System.out.println(); System.out .println("======================================================="); System.out.println("Connection details:"); // System.out.println( " Driver class: " // + lDatabase.getDriverClassName( ) ); System.out.println(" JDBC URL: " + lDatabase.getExternalJdbcUrl()); System.out.println(" username: '" + lDatabase.getUsername() + "'"); System.out.println(" password: '" + lDatabase.getPassword() + "'"); System.out.println("Interrupt the program to stop the database."); System.out .println("======================================================="); System.out .println("You must now populate the database with a schema. Use 'ant help' for information."); for (;;) { Thread.sleep(1000); } } }