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.dns.store.jndi;
022    
023    
024    import java.util.Set;
025    
026    import javax.naming.directory.DirContext;
027    import javax.naming.ldap.LdapName;
028    
029    import org.apache.directory.server.core.CoreSession;
030    import org.apache.directory.server.core.DirectoryService;
031    import org.apache.directory.server.core.jndi.ServerLdapContext;
032    import org.apache.directory.server.dns.DnsException;
033    import org.apache.directory.server.dns.messages.QuestionRecord;
034    import org.apache.directory.server.dns.messages.ResourceRecord;
035    import org.apache.directory.server.dns.messages.ResponseCode;
036    import org.apache.directory.server.dns.store.jndi.operations.GetRecords;
037    import org.apache.directory.server.i18n.I18n;
038    import org.apache.directory.server.protocol.shared.ServiceConfigurationException;
039    import org.slf4j.Logger;
040    import org.slf4j.LoggerFactory;
041    
042    
043    /**
044     * A JNDI-backed search strategy implementation.  This search strategy searches a
045     * single base DN for resource records.
046     *
047     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
048     * @version $Rev: 925887 $, $Date: 2010-03-21 21:36:55 +0100 (Sun, 21 Mar 2010) $
049     */
050    public class SingleBaseSearch implements SearchStrategy
051    {
052        /**
053         * the LOG for this class
054         */
055        private static final Logger LOG = LoggerFactory.getLogger( SingleBaseSearch.class );
056    
057        private final DirContext ctx;
058    
059    
060        SingleBaseSearch( String searchBaseDn, DirectoryService directoryService )
061        {
062            try
063            {
064                CoreSession session = directoryService.getSession();
065                ctx = new ServerLdapContext( directoryService, session, new LdapName( searchBaseDn ) );
066            } catch ( Exception e )
067            {
068                throw new ServiceConfigurationException( I18n.err( I18n.ERR_649, searchBaseDn ), e );
069            }
070    
071        }
072    
073    
074        public Set<ResourceRecord> getRecords( QuestionRecord question ) throws DnsException
075        {
076            try
077            {
078    
079                return new GetRecords( question ).execute( ctx, null );
080            }
081            catch ( Exception e )
082            {
083                LOG.debug( "Unexpected error retrieving DNS records.", e );
084                throw new DnsException( ResponseCode.SERVER_FAILURE );
085            }
086        }
087    
088    
089    }