/*
* 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.controller.actions;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.directory.api.ldap.model.schema.AttributeType;
import org.apache.directory.api.ldap.model.schema.ObjectClass;
import org.apache.directory.api.ldap.model.schema.SchemaObject;
import org.apache.directory.api.util.Strings;
import org.apache.directory.studio.schemaeditor.Activator;
import org.apache.directory.studio.schemaeditor.PluginConstants;
import org.apache.directory.studio.schemaeditor.controller.SchemaHandler;
import org.apache.directory.studio.schemaeditor.model.Schema;
import org.apache.directory.studio.schemaeditor.view.wrappers.AttributeTypeWrapper;
import org.apache.directory.studio.schemaeditor.view.wrappers.ObjectClassWrapper;
import org.apache.directory.studio.schemaeditor.view.wrappers.SchemaWrapper;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.osgi.util.NLS;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
/**
* This action deletes one or more Schema Elements from the SchemaView.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class DeleteSchemaElementAction extends Action implements IWorkbenchWindowActionDelegate
{
/** The associated viewer */
private TreeViewer viewer;
/**
* Creates a new instance of DeleteSchemaElementAction.
*/
public DeleteSchemaElementAction( TreeViewer viewer )
{
super( Messages.getString( "DeleteSchemaElementAction.DeleteAction" ) ); //$NON-NLS-1$
setToolTipText( Messages.getString( "DeleteSchemaElementAction.DeleteToolTip" ) ); //$NON-NLS-1$
setId( PluginConstants.CMD_DELETE_SCHEMA_ELEMENT );
setActionDefinitionId( PluginConstants.CMD_DELETE_SCHEMA_ELEMENT );
setImageDescriptor( Activator.getDefault().getImageDescriptor( PluginConstants.IMG_DELETE ) );
setEnabled( true );
this.viewer = viewer;
this.viewer.addSelectionChangedListener( new ISelectionChangedListener()
{
public void selectionChanged( SelectionChangedEvent event )
{
StructuredSelection selection = ( StructuredSelection ) event.getSelection();
if ( selection.size() > 0 )
{
boolean enabled = true;
for ( Iterator<?> iterator = selection.iterator(); iterator.hasNext(); )
{
Object selectedItem = iterator.next();
if ( !( selectedItem instanceof SchemaWrapper )
&& !( selectedItem instanceof AttributeTypeWrapper )
&& !( selectedItem instanceof ObjectClassWrapper ) )
{
enabled = false;
break;
}
}
setEnabled( enabled );
}
else
{
setEnabled( false );
}
}
} );
}
/**
* {@inheritDoc}
*/
public void run()
{
StructuredSelection selection = ( StructuredSelection ) viewer.getSelection();
if ( !selection.isEmpty() )
{
StringBuilder message = new StringBuilder();
int count = selection.size();
if ( count == 1 )
{
Object firstElement = selection.getFirstElement();
if ( firstElement instanceof AttributeTypeWrapper )
{
message.append( Messages.getString( "DeleteSchemaElementAction.SureDeleteAttributeType" ) ); //$NON-NLS-1$
}
else if ( firstElement instanceof ObjectClassWrapper )
{
message.append( Messages.getString( "DeleteSchemaElementAction.SureDeleteObjectClass" ) ); //$NON-NLS-1$
}
else if ( firstElement instanceof SchemaWrapper )
{
message.append( Messages.getString( "DeleteSchemaElementAction.SureDeleteSchema" ) ); //$NON-NLS-1$
}
else
{
message.append( Messages.getString( "DeleteSchemaElementAction.SureDeleteItem" ) ); //$NON-NLS-1$
}
}
else
{
message.append( NLS.bind(
Messages.getString( "DeleteSchemaElementAction.SureDeleteItems" ), new Object[] { count } ) ); //$NON-NLS-1$
}
// Showing the confirmation window
if ( MessageDialog.openConfirm( viewer.getControl().getShell(),
Messages.getString( "DeleteSchemaElementAction.DeleteTitle" ), message.toString() ) ) //$NON-NLS-1$
{
Map<String, Schema> schemasMap = new HashMap<String, Schema>();
List<SchemaObject> schemaObjectsList = new ArrayList<SchemaObject>();
for ( Iterator<?> iterator = selection.iterator(); iterator.hasNext(); )
{
Object selectedItem = iterator.next();
if ( selectedItem instanceof SchemaWrapper )
{
Schema schema = ( ( SchemaWrapper ) selectedItem ).getSchema();
schemasMap.put( Strings.toLowerCase( schema.getSchemaName() ), schema );
}
else if ( selectedItem instanceof AttributeTypeWrapper )
{
AttributeType at = ( ( AttributeTypeWrapper ) selectedItem ).getAttributeType();
schemaObjectsList.add( at );
}
else if ( selectedItem instanceof ObjectClassWrapper )
{
ObjectClass oc = ( ( ObjectClassWrapper ) selectedItem ).getObjectClass();
schemaObjectsList.add( oc );
}
}
SchemaHandler schemaHandler = Activator.getDefault().getSchemaHandler();
// Removing schema objects
for ( SchemaObject schemaObject : schemaObjectsList )
{
if ( !schemasMap.containsKey( Strings.toLowerCase( schemaObject.getSchemaName() ) ) )
{
// If the schema object is not part of deleted schema, we need to delete it.
// But, we don't delete schema objects that are part of a deleted schema, since
// deleting the schema will also delete this schema object.
if ( schemaObject instanceof AttributeType )
{
schemaHandler.removeAttributeType( ( AttributeType ) schemaObject );
}
else if ( schemaObject instanceof ObjectClass )
{
schemaHandler.removeObjectClass( ( ObjectClass ) schemaObject );
}
}
}
// Removing schemas
for ( Schema schema : schemasMap.values() )
{
schemaHandler.removeSchema( schema );
}
}
}
}
/**
* {@inheritDoc}
*/
public void run( IAction action )
{
run();
}
/**
* {@inheritDoc}
*/
public void dispose()
{
// Nothing to do
}
/**
* {@inheritDoc}
*/
public void init( IWorkbenchWindow window )
{
// Nothing to do
}
/**
* {@inheritDoc}
*/
public void selectionChanged( IAction action, ISelection selection )
{
// Nothing to do
}
}