/*
* 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.studio.schemaeditor.view.editors.attributetype;
import java.util.Comparator;
import java.util.List;
import org.apache.directory.api.ldap.model.schema.AttributeType;
import org.apache.directory.studio.schemaeditor.view.editors.NonExistingAttributeType;
/**
* This class implements the Comparator used to compare elements in the Matching Rules Content Providers.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class ATESuperiorComboComparator implements Comparator<Object>
{
/**
* {@inheritDoc}
*/
public int compare( Object o1, Object o2 )
{
if ( o1 instanceof AttributeType && o2 instanceof AttributeType )
{
List<String> at1Names = ( ( AttributeType ) o1 ).getNames();
List<String> at2Names = ( ( AttributeType ) o2 ).getNames();
if ( ( at1Names != null ) && ( at2Names != null ) && ( at1Names.size() > 0 ) && ( at2Names.size() > 0 ) )
{
return at1Names.get( 0 ).compareToIgnoreCase( at2Names.get( 0 ) );
}
}
else if ( o1 instanceof AttributeType && o2 instanceof NonExistingAttributeType )
{
List<String> at1Names = ( ( AttributeType ) o1 ).getNames();
String at2Name = ( ( NonExistingAttributeType ) o2 ).getName();
if ( ( at1Names != null ) && ( at2Name != null ) && ( at1Names.size() > 0 ) )
{
return at1Names.get( 0 ).compareToIgnoreCase( at2Name );
}
}
else if ( o1 instanceof NonExistingAttributeType && o2 instanceof AttributeType )
{
String at1Name = ( ( NonExistingAttributeType ) o1 ).getName();
List<String> at2Names = ( ( AttributeType ) o2 ).getNames();
if ( ( at1Name != null ) && ( at2Names != null ) && ( at2Names.size() > 0 ) )
{
return at1Name.compareToIgnoreCase( at2Names.get( 0 ) );
}
}
else if ( o1 instanceof NonExistingAttributeType && o2 instanceof NonExistingAttributeType )
{
String at1Name = ( ( NonExistingAttributeType ) o1 ).getName();
String at2Name = ( ( NonExistingAttributeType ) o2 ).getName();
if ( ( at1Name != null ) && ( at2Name != null ) )
{
return at1Name.compareToIgnoreCase( at2Name );
}
}
return 0;
}
}