| /* |
| * 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.api.ldap.model.schema.comparators; |
| |
| |
| import org.apache.directory.api.ldap.model.schema.LdapComparator; |
| import org.apache.directory.api.util.Strings; |
| |
| |
| /** |
| * A comparator that compares the objectClass type with values: AUXILIARY, |
| * ABSTRACT, and STRUCTURAL. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class ObjectClassTypeComparator<T> extends LdapComparator<T> |
| { |
| /** The serial version UID */ |
| private static final long serialVersionUID = 2L; |
| |
| |
| public ObjectClassTypeComparator( String oid ) |
| { |
| super( oid ); |
| } |
| |
| |
| public int compare( T o1, T o2 ) |
| { |
| String s1 = getString( o1 ); |
| String s2 = getString( o2 ); |
| |
| if ( s1 == null && s2 == null ) |
| { |
| return 0; |
| } |
| |
| if ( s1 == null ) |
| { |
| return -1; |
| } |
| |
| if ( s2 == null ) |
| { |
| return 1; |
| } |
| |
| return s1.compareTo( s2 ); |
| } |
| |
| |
| String getString( T obj ) |
| { |
| String strValue; |
| |
| if ( obj == null ) |
| { |
| return null; |
| } |
| |
| if ( obj instanceof String ) |
| { |
| strValue = ( String ) obj; |
| } |
| else if ( obj instanceof byte[] ) |
| { |
| strValue = Strings.utf8ToString( ( byte[] ) obj ); |
| } |
| else |
| { |
| strValue = obj.toString(); |
| } |
| |
| return strValue; |
| } |
| } |