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.protocol.shared.catalog;
022    
023    
024    import java.util.HashMap;
025    import java.util.Map;
026    
027    import org.apache.directory.server.constants.ApacheSchemaConstants;
028    import org.apache.directory.server.core.CoreSession;
029    import org.apache.directory.server.core.filtering.EntryFilteringCursor;
030    import org.apache.directory.server.protocol.shared.store.DirectoryServiceOperation;
031    import org.apache.directory.shared.ldap.entry.EntryAttribute;
032    import org.apache.directory.shared.ldap.entry.ServerEntry;
033    import org.apache.directory.shared.ldap.filter.FilterParser;
034    import org.apache.directory.shared.ldap.filter.SearchScope;
035    import org.apache.directory.shared.ldap.message.AliasDerefMode;
036    import org.apache.directory.shared.ldap.name.DN;
037    
038    
039    /**
040     * A Session operation for building a catalog.
041     *
042     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
043     * @version $Rev: 927146 $, $Date: 2010-03-24 19:39:54 +0100 (Wed, 24 Mar 2010) $
044     */
045    public class GetCatalog implements DirectoryServiceOperation
046    {
047        private static final long serialVersionUID = -6657995003127926278L;
048    
049    
050        /**
051         * Note that the base is relative to the existing context.
052         */
053        public Object execute( CoreSession session, DN base ) throws Exception
054        {
055            String filter = "(objectClass=" + ApacheSchemaConstants.APACHE_CATALOG_ENTRY_OC + ")";
056    
057            EntryFilteringCursor list = session.search( 
058                DN.EMPTY_DN, 
059                SearchScope.SUBTREE, 
060                FilterParser.parse( filter ), 
061                AliasDerefMode.DEREF_ALWAYS,
062                null );
063    
064            Map<String, String> catalog = new HashMap<String, String>();
065    
066            list.beforeFirst();
067            
068            while ( list.next() )
069            {
070                ServerEntry result = list.get();
071    
072                String name = null;
073                EntryAttribute attribute = result.get( ApacheSchemaConstants.APACHE_CATALOGUE_ENTRY_NAME_AT );
074                
075                if ( attribute != null )
076                {
077                    name = attribute.getString();
078                }
079                
080                String basedn = null;
081                attribute = result.get( ApacheSchemaConstants.APACHE_CATALOGUE_ENTRY_BASE_DN_AT );
082                
083                if ( attribute != null )
084                {
085                    basedn = attribute.getString();
086                }
087                
088    
089                catalog.put( name, basedn );
090            }
091    
092            return catalog;
093        }
094    }