001    /*
002     *   Licensed to the Apache Software Foundation (ASF) under one
003     *   or more contributor license agreements.  See the NOTICE file
004     *   distributed with this work for additional information
005     *   regarding copyright ownership.  The ASF licenses this file
006     *   to you under the Apache License, Version 2.0 (the
007     *   "License"); you may not use this file except in compliance
008     *   with the License.  You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     *   Unless required by applicable law or agreed to in writing,
013     *   software distributed under the License is distributed on an
014     *   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *   KIND, either express or implied.  See the License for the
016     *   specific language governing permissions and limitations
017     *   under the License.
018     *
019     */
020    
021    package org.apache.directory.server.tools;
022    
023    
024    import java.io.File;
025    import java.io.FileFilter;
026    import java.util.ArrayList;
027    import java.util.List;
028    
029    
030    /**
031     * TODO InstanceLayout.
032     *
033     *       ${ads-instance-name}
034     *       |-- conf
035     *       |-- ldif
036     *       |-- log
037     *       |-- partitions
038     *       |   |-- example
039     *       |   |-- schema
040     *       |   `-- system
041     *       `-- run
042     *       
043     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
044     * @version $Rev$, $Date$
045     */
046    public class InstanceLayout
047    {
048        /** the installation instance's base directory */
049        private final File instanceRoot;
050    
051        /** a file system directory filter */
052        private FileFilter dirFilter = new FileFilter()
053        {
054            public boolean accept( File pathname )
055            {
056                return pathname.isDirectory();
057            }
058    
059        };
060    
061    
062        public InstanceLayout( File location )
063        {
064            this.instanceRoot = location;
065        }
066    
067    
068        public InstanceLayout( String location )
069        {
070            this.instanceRoot = new File( location );
071        }
072    
073    
074        public File getPartitionsDir()
075        {
076            return new File( instanceRoot, "partitions" );
077        }
078    
079    
080        public File getLogDir()
081        {
082            return new File( instanceRoot, "log" );
083        }
084    
085    
086        public File getConfDir()
087        {
088            return new File( instanceRoot, "conf" );
089        }
090    
091    
092        /**
093         * returns a list of partition directories
094         * @return list of partition directories
095         */
096        public List<File> getPartitions()
097        {
098            List<File> partitions = new ArrayList<File>();
099    
100            File[] dirs = getPartitionsDir().listFiles( dirFilter );
101    
102            for ( File f : dirs )
103            {
104                File masterFile = new File( f, "master.db" );
105                if ( masterFile.isFile() && masterFile.exists() )
106                {
107                    partitions.add( f );
108                }
109            }
110    
111            return partitions;
112        }
113    }