001    /**
002     * JDBM LICENSE v1.00
003     *
004     * Redistribution and use of this software and associated documentation
005     * ("Software"), with or without modification, are permitted provided
006     * that the following conditions are met:
007     *
008     * 1. Redistributions of source code must retain copyright
009     *    statements and notices.  Redistributions must also contain a
010     *    copy of this document.
011     *
012     * 2. Redistributions in binary form must reproduce the
013     *    above copyright notice, this list of conditions and the
014     *    following disclaimer in the documentation and/or other
015     *    materials provided with the distribution.
016     *
017     * 3. The name "JDBM" must not be used to endorse or promote
018     *    products derived from this Software without prior written
019     *    permission of Cees de Groot.  For written permission,
020     *    please contact cg@cdegroot.com.
021     *
022     * 4. Products derived from this Software may not be called "JDBM"
023     *    nor may "JDBM" appear in their names without prior written
024     *    permission of Cees de Groot.
025     *
026     * 5. Due credit should be given to the JDBM Project
027     *    (http://jdbm.sourceforge.net/).
028     *
029     * THIS SOFTWARE IS PROVIDED BY THE JDBM PROJECT AND CONTRIBUTORS
030     * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
031     * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
032     * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
033     * CEES DE GROOT OR ANY CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
034     * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
035     * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
036     * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
037     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
038     * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
039     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
040     * OF THE POSSIBILITY OF SUCH DAMAGE.
041     *
042     * Copyright 2000 (C) Cees de Groot. All Rights Reserved.
043     * Copyright 2000-2001 (C) Alex Boisvert. All Rights Reserved.
044     * Contributions are Copyright (C) 2000 by their associated contributors.
045     *
046     * $Id: RecordManagerFactory.java,v 1.2 2005/06/25 23:12:31 doomdark Exp $
047     */
048    package jdbm;
049    
050    
051    import java.io.IOException;
052    import java.util.Properties;
053    
054    import org.apache.directory.server.i18n.I18n;
055    
056    
057    /**
058     * This is the factory class to use for instantiating {@link RecordManager}
059     * instances.
060     *
061     * @author <a href="mailto:boisvert@intalio.com">Alex Boisvert</a>
062     * @author <a href="cg@cdegroot.com">Cees de Groot</a>
063     * @version $Id: RecordManagerFactory.java,v 1.2 2005/06/25 23:12:31 doomdark Exp $
064     */
065    public final class RecordManagerFactory
066    {
067    
068        /**
069         * Create a record manager.
070         *
071         * @param name Name of the record file.
072         * @throws IOException if an I/O related exception occurs while creating
073         *                    or opening the record manager.
074         * @throws UnsupportedOperationException if some options are not supported by the
075         *                                      implementation.
076         * @throws IllegalArgumentException if some options are invalid.
077         */
078        public static RecordManager createRecordManager( String name ) throws IOException
079        {
080            return createRecordManager( name, new Properties() );
081        }
082    
083    
084        /**
085         * Create a record manager.
086         *
087         * @param name Name of the record file.
088         * @param options Record manager options.
089         * @throws IOException if an I/O related exception occurs while creating
090         *                    or opening the record manager.
091         * @throws UnsupportedOperationException if some options are not supported by the
092         *                                      implementation.
093         * @throws IllegalArgumentException if some options are invalid.
094         */
095        public static RecordManager createRecordManager( String name, Properties options ) throws IOException
096        {
097            String                 provider;
098            Class<?>               clazz;
099            RecordManagerProvider  factory;
100    
101            provider = options.getProperty( RecordManagerOptions.PROVIDER_FACTORY, "jdbm.recman.Provider" );
102    
103            try 
104            {
105                clazz = Thread.currentThread().getContextClassLoader().loadClass( provider );
106                factory = ( RecordManagerProvider ) clazz.newInstance();
107            } 
108            catch ( Exception except ) 
109            {
110                throw new IllegalArgumentException( I18n.err( I18n.ERR_567, provider, except.getClass().getName(),
111                    except.getLocalizedMessage() ) );
112            }
113            
114            return factory.createRecordManager( name, options );
115        }
116    }