/*
* 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.widget;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.apache.directory.studio.schemaeditor.Activator;
import org.apache.directory.studio.schemaeditor.PluginConstants;
import org.apache.directory.studio.schemaeditor.model.difference.SchemaDifference;
import org.apache.directory.studio.schemaeditor.view.widget.Folder.FolderType;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
/**
* This class implements the ContentProvider for the Difference Widget.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class DifferencesWidgetSchemaContentProvider implements IStructuredContentProvider, ITreeContentProvider
{
/** The preferences store */
private IPreferenceStore store;
/** The FirstName Sorter */
private FirstNameSorter firstNameSorter;
/** The OID Sorter */
private OidSorter oidSorter;
/** The Schema Sorter */
private SchemaDifferenceSorter schemaDifferenceSorter;
/**
* Creates a new instance of DifferencesWidgetSchemaContentProvider.
*/
public DifferencesWidgetSchemaContentProvider()
{
store = Activator.getDefault().getPreferenceStore();
firstNameSorter = new FirstNameSorter();
oidSorter = new OidSorter();
schemaDifferenceSorter = new SchemaDifferenceSorter();
}
/**
* {@inheritDoc}
*/
public Object[] getElements( Object inputElement )
{
return getChildren( inputElement );
}
/**
* {@inheritDoc}
*/
public void dispose()
{
// Nothing to do
}
/**
* {@inheritDoc}
*/
public void inputChanged( Viewer viewer, Object oldInput, Object newInput )
{
// Nothing to do
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("unchecked")
public Object[] getChildren( Object parentElement )
{
List<Object> children = new ArrayList<Object>();
int group = store.getInt( PluginConstants.PREFS_SCHEMA_VIEW_GROUPING );
int sortBy = store.getInt( PluginConstants.PREFS_SCHEMA_VIEW_SORTING_BY );
int sortOrder = store.getInt( PluginConstants.PREFS_SCHEMA_VIEW_SORTING_ORDER );
if ( parentElement instanceof List )
{
List<SchemaDifference> schemaDifferences = ( List<SchemaDifference> ) parentElement;
children.addAll( schemaDifferences );
Collections.sort( children, schemaDifferenceSorter );
}
else if ( parentElement instanceof SchemaDifference )
{
SchemaDifference difference = ( SchemaDifference ) parentElement;
if ( group == PluginConstants.PREFS_SCHEMA_VIEW_GROUPING_FOLDERS )
{
Folder atFolder = new Folder( FolderType.ATTRIBUTE_TYPE );
atFolder.addAllChildren( difference.getAttributeTypesDifferences() );
children.add( atFolder );
Folder ocFolder = new Folder( FolderType.OBJECT_CLASS );
ocFolder.addAllChildren( difference.getObjectClassesDifferences() );
children.add( ocFolder );
}
else if ( group == PluginConstants.PREFS_SCHEMA_VIEW_GROUPING_MIXED )
{
children.addAll( difference.getAttributeTypesDifferences() );
children.addAll( difference.getObjectClassesDifferences() );
// Sort by
if ( sortBy == PluginConstants.PREFS_SCHEMA_VIEW_SORTING_BY_FIRSTNAME )
{
Collections.sort( children, firstNameSorter );
}
else if ( sortBy == PluginConstants.PREFS_SCHEMA_VIEW_SORTING_BY_OID )
{
Collections.sort( children, oidSorter );
}
// Sort Order
if ( sortOrder == PluginConstants.PREFS_SCHEMA_VIEW_SORTING_ORDER_DESCENDING )
{
Collections.reverse( children );
}
}
}
else if ( parentElement instanceof Folder )
{
children.addAll( ( ( Folder ) parentElement ).getChildren() );
// Sort by
if ( sortBy == PluginConstants.PREFS_SCHEMA_VIEW_SORTING_BY_FIRSTNAME )
{
Collections.sort( children, firstNameSorter );
}
else if ( sortBy == PluginConstants.PREFS_SCHEMA_VIEW_SORTING_BY_OID )
{
Collections.sort( children, oidSorter );
}
// Sort Order
if ( sortOrder == PluginConstants.PREFS_SCHEMA_VIEW_SORTING_ORDER_DESCENDING )
{
Collections.reverse( children );
}
}
return children.toArray();
}
/**
* {@inheritDoc}
*/
public Object getParent( Object element )
{
// Default
return null;
}
/**
* {@inheritDoc}
*/
public boolean hasChildren( Object element )
{
if ( element instanceof SchemaDifference )
{
return true;
}
else if ( element instanceof Folder )
{
return true;
}
// Default
return false;
}
}