| /* |
| * 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; |
| |
| |
| import javax.naming.NamingException; |
| import javax.naming.directory.Attribute; |
| import javax.naming.directory.Attributes; |
| |
| import org.apache.directory.shared.ldap.schema.AttributeType; |
| |
| |
| /** |
| * A central place to aggregate functionality used throughout the server |
| * in various subsystems yet the code here is server specific hence why |
| * it's not placed in shared-ldap. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| * @version $Rev$ |
| */ |
| public class ServerUtils |
| { |
| /** |
| * Efficient server side means to perform a lookup of an attribute |
| * within an entry. Simple lookups by name may fail if the user provided |
| * the attribute identifier in any way other than the common alias for |
| * the attribute. We need to check for all aliases and the OID. |
| * |
| * @param type the attributeType containing the OID and aliases we need |
| * @param entry the entry with user provided attribute IDENTIFIERS |
| * @return the attribute if it is present |
| * @throws NamingException if there are failures while accessing the |
| * attributes object |
| */ |
| public static Attribute getAttribute( AttributeType type, Attributes entry ) throws NamingException |
| { |
| Attribute attr = entry.get( type.getOid() ); |
| if ( attr == null ) |
| { |
| String[] aliases = type.getNames(); |
| for ( int ii = 0; ii < aliases.length; ii++ ) |
| { |
| attr = entry.get( aliases[ii] ); |
| if ( attr != null ) |
| { |
| return attr; |
| } |
| } |
| } |
| return attr; |
| } |
| |
| |
| public static Attribute removeAttribute( AttributeType type, Attributes entry ) throws NamingException |
| { |
| Attribute attr = entry.get( type.getOid() ); |
| if ( attr == null ) |
| { |
| String[] aliases = type.getNames(); |
| for ( int ii = 0; ii < aliases.length; ii++ ) |
| { |
| attr = entry.get( aliases[ii] ); |
| if ( attr != null ) |
| { |
| return entry.remove( attr.getID() ); |
| } |
| } |
| } |
| |
| if ( attr == null ) |
| { |
| return null; |
| } |
| |
| return entry.remove( attr.getID() ); |
| } |
| } |