| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.server.core.partition.impl.btree.mavibot; |
| |
| |
| import java.io.File; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| |
| import org.apache.directory.api.ldap.model.schema.AttributeType; |
| import org.apache.directory.api.ldap.model.schema.MatchingRule; |
| import org.apache.directory.api.ldap.model.schema.SchemaManager; |
| import org.apache.directory.mavibot.btree.serializer.StringSerializer; |
| import org.apache.directory.server.constants.ApacheSchemaConstants; |
| import org.apache.directory.server.i18n.I18n; |
| import org.apache.directory.server.xdbm.ParentIdAndRdn; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A special index which stores Rdn objects. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class MavibotRdnIndex extends MavibotIndex<ParentIdAndRdn> |
| { |
| |
| /** A logger for this class */ |
| private static final Logger LOG = LoggerFactory.getLogger( MavibotRdnIndex.class ); |
| |
| |
| public MavibotRdnIndex() |
| { |
| super( ApacheSchemaConstants.APACHE_RDN_AT_OID, true ); |
| initialized = false; |
| } |
| |
| |
| public void init( SchemaManager schemaManager, AttributeType attributeType ) throws IOException |
| { |
| LOG.debug( "Initializing an Index for attribute '{}'", attributeType.getName() ); |
| |
| this.attributeType = attributeType; |
| |
| if ( attributeId == null ) |
| { |
| setAttributeId( attributeType.getName() ); |
| } |
| |
| if ( this.wkDirPath == null ) |
| { |
| NullPointerException e = new NullPointerException( "The index working directory has not be set" ); |
| throw e; |
| } |
| |
| String path = new File( this.wkDirPath, attributeType.getOid() ).getAbsolutePath(); |
| |
| try |
| { |
| initTables( schemaManager ); |
| } |
| catch ( IOException e ) |
| { |
| // clean up |
| close(); |
| throw e; |
| } |
| |
| // finally write a text file in the format <OID>-<attribute-name>.txt |
| FileWriter fw = new FileWriter( new File( path + "-" + attributeType.getName() + ".txt" ) ); |
| |
| // write the AttributeType description |
| fw.write( attributeType.toString() ); |
| fw.close(); |
| |
| initialized = true; |
| } |
| |
| |
| /** |
| * Initializes the forward and reverse tables used by this Index. |
| * |
| * @param schemaManager The server schemaManager |
| * @throws IOException if we cannot initialize the forward and reverse |
| * tables |
| * @throws NamingException |
| */ |
| private void initTables( SchemaManager schemaManager ) throws IOException |
| { |
| MatchingRule mr = attributeType.getEquality(); |
| |
| if ( mr == null ) |
| { |
| throw new IOException( I18n.err( I18n.ERR_574, attributeType.getName() ) ); |
| } |
| |
| MavibotParentIdAndRdnSerializer.setSchemaManager( schemaManager ); |
| MavibotParentIdAndRdnSerializer parentIdAndSerializer = new MavibotParentIdAndRdnSerializer(); |
| |
| String forwardTableName = attributeType.getOid() + FORWARD_BTREE; |
| forward = new MavibotTable<ParentIdAndRdn, String>( recordMan, schemaManager, forwardTableName, |
| parentIdAndSerializer, StringSerializer.INSTANCE, false ); |
| |
| String reverseTableName = attributeType.getOid() + REVERSE_BTREE; |
| reverse = new MavibotTable<String, ParentIdAndRdn>( recordMan, schemaManager, reverseTableName, |
| StringSerializer.INSTANCE, parentIdAndSerializer, false ); |
| } |
| } |