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[utils] / test / enterprise / src / main / java / org / wamblee / support / persistence / DatabaseStarter.java
diff --git a/test/enterprise/src/main/java/org/wamblee/support/persistence/DatabaseStarter.java b/test/enterprise/src/main/java/org/wamblee/support/persistence/DatabaseStarter.java
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+/*
+ * Copyright 2005 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
+     * 
+     * <pre>
+     * 
+     *    DatabaseStarter &lt;databaseClassName&gt;
+     *  
+     * </pre>
+     * 
+     * where the database class name must be the name of a concrete subclass of
+     * {@link Database}.
+     * 
+     * @param args
+     */
+    public static void main( String[] args ) throws Exception {
+        String clazz = args[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 );
+        }
+    }
+}