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 */
020package org.apache.directory.api.ldap.model.schema.registries.helper;
021
022
023import org.apache.directory.api.ldap.model.exception.LdapException;
024import org.apache.directory.api.ldap.model.schema.MatchingRuleUse;
025import org.apache.directory.api.ldap.model.schema.SchemaErrorHandler;
026import org.apache.directory.api.ldap.model.schema.registries.AttributeTypeRegistry;
027import org.apache.directory.api.ldap.model.schema.registries.Registries;
028
029
030/**
031 * An helper class used to store all the methods associated with a MatchingRuleUse
032 * in relation with the Registries and SchemaManager.
033 * 
034 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
035 */
036public final class MatchingRuleUseHelper
037{
038    private MatchingRuleUseHelper()
039    {
040    }
041
042
043    /**
044     * Inject the MatchingRuleUse into the registries, updating the references to
045     * other SchemaObject
046     *
047     * @param matchingRuleUse The MatchingRuleUse to add to the Registries
048     * @param errorHandler Error handler
049     * @param registries The Registries
050     * @throws LdapException If the addition failed
051     */
052    public static void addToRegistries( MatchingRuleUse matchingRuleUse, SchemaErrorHandler errorHandler, Registries registries )
053        throws LdapException
054    {
055        if ( registries != null )
056        {
057            try
058            {
059                matchingRuleUse.unlock();
060
061                AttributeTypeRegistry atRegistry = registries.getAttributeTypeRegistry();
062
063                matchingRuleUse.getApplicableAttributes().clear();
064
065                for ( String oid : matchingRuleUse.getApplicableAttributeOids() )
066                {
067                    matchingRuleUse.getApplicableAttributes().add( atRegistry.lookup( oid ) );
068                }
069            }
070            finally
071            {
072                matchingRuleUse.lock();
073            }
074        }
075    }
076}