/*
* 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.objectclass;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import org.apache.directory.studio.schemaeditor.Activator;
import org.apache.directory.studio.schemaeditor.controller.SchemaHandler;
import org.apache.directory.studio.schemaeditor.model.ObjectClassImpl;
import org.apache.directory.studio.schemaeditor.view.editors.NonExistingObjectClass;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.Viewer;
/**
* This class is the Content Provider for the Superiors Table of the Object
* Class Editor.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
public class ObjectClassEditorSuperiorsTableContentProvider implements IStructuredContentProvider
{
/** The SchemaHandler */
private SchemaHandler schemaHandler;
/**
* Creates a new instance of
* ObjectClassFormEditorSuperiorsTableContentProvider.
*/
public ObjectClassEditorSuperiorsTableContentProvider()
{
schemaHandler = Activator.getDefault().getSchemaHandler();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
*/
public Object[] getElements( Object inputElement )
{
if ( inputElement instanceof String[] )
{
List<Object> results = new ArrayList<Object>();
String[] superiors = ( String[] ) inputElement;
for ( String superior : superiors )
{
ObjectClassImpl oc = schemaHandler.getObjectClass( superior );
if ( oc != null )
{
results.add( oc );
}
else
{
results.add( new NonExistingObjectClass( superior ) );
}
}
// Sorting Elements
Collections.sort( results, new Comparator<Object>()
{
public int compare( Object o1, Object o2 )
{
if ( o1 instanceof ObjectClassImpl && o2 instanceof ObjectClassImpl )
{
String[] oc1Names = ( ( ObjectClassImpl ) o1 ).getNames();
String[] oc2Names = ( ( ObjectClassImpl ) o2 ).getNames();
if ( ( oc1Names != null ) && ( oc2Names != null ) && ( oc1Names.length > 0 )
&& ( oc2Names.length > 0 ) )
{
return oc1Names[0].compareToIgnoreCase( oc2Names[0] );
}
}
else if ( o1 instanceof ObjectClassImpl && o2 instanceof NonExistingObjectClass )
{
String[] oc1Names = ( ( ObjectClassImpl ) o1 ).getNames();
String oc2Name = ( ( NonExistingObjectClass ) o2 ).getName();
if ( ( oc1Names != null ) && ( oc2Name != null ) && ( oc1Names.length > 0 ) )
{
return oc1Names[0].compareToIgnoreCase( oc2Name );
}
}
else if ( o1 instanceof NonExistingObjectClass && o2 instanceof ObjectClassImpl )
{
String oc1Name = ( ( NonExistingObjectClass ) o1 ).getName();
String[] oc2Names = ( ( ObjectClassImpl ) o2 ).getNames();
if ( ( oc1Name != null ) && ( oc2Names != null ) && ( oc2Names.length > 0 ) )
{
return oc1Name.compareToIgnoreCase( oc2Names[0] );
}
}
else if ( o1 instanceof NonExistingObjectClass && o2 instanceof NonExistingObjectClass )
{
String oc1Name = ( ( NonExistingObjectClass ) o1 ).getName();
String oc2Name = ( ( NonExistingObjectClass ) o2 ).getName();
if ( ( oc1Name != null ) && ( oc2Name != null ) )
{
return oc1Name.compareToIgnoreCase( oc2Name );
}
}
return 0;
}
} );
return results.toArray();
}
// Default
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IContentProvider#dispose()
*/
public void dispose()
{
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
* java.lang.Object, java.lang.Object)
*/
public void inputChanged( Viewer viewer, Object oldInput, Object newInput )
{
}
}