1 /**
2 * JDBM LICENSE v1.00
3 *
4 * Redistribution and use of this software and associated documentation
5 * ("Software"), with or without modification, are permitted provided
6 * that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain copyright
9 * statements and notices. Redistributions must also contain a
10 * copy of this document.
11 *
12 * 2. Redistributions in binary form must reproduce the
13 * above copyright notice, this list of conditions and the
14 * following disclaimer in the documentation and/or other
15 * materials provided with the distribution.
16 *
17 * 3. The name "JDBM" must not be used to endorse or promote
18 * products derived from this Software without prior written
19 * permission of Cees de Groot. For written permission,
20 * please contact cg@cdegroot.com.
21 *
22 * 4. Products derived from this Software may not be called "JDBM"
23 * nor may "JDBM" appear in their names without prior written
24 * permission of Cees de Groot.
25 *
26 * 5. Due credit should be given to the JDBM Project
27 * (http://jdbm.sourceforge.net/).
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE JDBM PROJECT AND CONTRIBUTORS
30 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
31 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
32 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
33 * CEES DE GROOT OR ANY CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
34 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
35 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
36 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
40 * OF THE POSSIBILITY OF SUCH DAMAGE.
41 *
42 * Copyright 2000 (C) Cees de Groot. All Rights Reserved.
43 * Copyright 2000-2001 (C) Alex Boisvert. All Rights Reserved.
44 * Contributions are Copyright (C) 2000 by their associated contributors.
45 *
46 * $Id: RecordManagerFactory.java,v 1.2 2005/06/25 23:12:31 doomdark Exp $
47 */
48
49 package jdbm;
50
51 import java.io.IOException;
52 import java.util.Properties;
53
54 /**
55 * This is the factory class to use for instantiating {@link RecordManager}
56 * instances.
57 *
58 * @author <a href="mailto:boisvert@intalio.com">Alex Boisvert</a>
59 * @author <a href="cg@cdegroot.com">Cees de Groot</a>
60 * @version $Id: RecordManagerFactory.java,v 1.2 2005/06/25 23:12:31 doomdark Exp $
61 */
62 public final class RecordManagerFactory
63 {
64
65 /**
66 * Create a record manager.
67 *
68 * @param name Name of the record file.
69 * @throws IOException if an I/O related exception occurs while creating
70 * or opening the record manager.
71 * @throws UnsupportedOperationException if some options are not supported by the
72 * implementation.
73 * @throws IllegalArgumentException if some options are invalid.
74 */
75 public static RecordManager createRecordManager( String name )
76 throws IOException
77 {
78 return createRecordManager( name, new Properties() );
79 }
80
81
82 /**
83 * Create a record manager.
84 *
85 * @param name Name of the record file.
86 * @param options Record manager options.
87 * @throws IOException if an I/O related exception occurs while creating
88 * or opening the record manager.
89 * @throws UnsupportedOperationException if some options are not supported by the
90 * implementation.
91 * @throws IllegalArgumentException if some options are invalid.
92 */
93 public static RecordManager createRecordManager( String name,
94 Properties options )
95 throws IOException
96 {
97 String provider;
98 Class clazz;
99 RecordManagerProvider factory;
100
101 provider = options.getProperty( RecordManagerOptions.PROVIDER_FACTORY,
102 "jdbm.recman.Provider" );
103
104 try {
105 clazz = Thread.currentThread().getContextClassLoader().loadClass( provider );
106 factory = (RecordManagerProvider) clazz.newInstance();
107 } catch ( Exception except ) {
108 throw new IllegalArgumentException( "Invalid record manager provider: "
109 + provider
110 + "\n[" + except.getClass().getName()
111 + ": " + except.getMessage()
112 + "]" );
113 }
114 return factory.createRecordManager( name, options );
115 }
116
117 }