/*
* 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.connection.ui.actions;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.directory.studio.connection.core.Connection;
import org.apache.directory.studio.connection.core.ConnectionFolder;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
/**
* The SelectionUtils are used to extract specific beans from the current
* selection (org.eclipse.jface.viewers.ISelection).
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class SelectionUtils
{
/**
* Gets the Strings contained in the given selection.
*
* @param selection the selection
* @return an array with Strings, may be empty.
*/
public static String[] getProperties( ISelection selection )
{
List<Object> list = getTypes( selection, String.class );
return list.toArray( new String[list.size()] );
}
/**
* Gets all beans of the requested type contained in the given selection.
*
* @param selection the selection
* @param type the requested type
* @return a list containg beans of the requesten type
*/
private static List<Object> getTypes( ISelection selection, Class<?> type )
{
List<Object> list = new ArrayList<Object>();
if ( selection instanceof IStructuredSelection )
{
IStructuredSelection structuredSelection = ( IStructuredSelection ) selection;
Iterator<?> iterator = structuredSelection.iterator();
while ( iterator.hasNext() )
{
Object object = iterator.next();
if ( type.isInstance( object ) )
{
list.add( object );
}
}
}
return list;
}
/**
* Gets the Connection beans contained in the given selection.
*
* @param selection the selection
* @return an array with Connection beans, may be empty.
*/
public static Connection[] getConnections( ISelection selection )
{
List<Object> list = getTypes( selection, Connection.class );
return list.toArray( new Connection[list.size()] );
}
/**
* Gets the ConnectionFolder beans contained in the given selection.
*
* @param selection the selection
* @return an array with ConnectionFolder beans, may be empty.
*/
public static ConnectionFolder[] getConnectionFolders( ISelection selection )
{
List<Object> list = getTypes( selection, ConnectionFolder.class );
return list.toArray( new ConnectionFolder[list.size()] );
}
/**
* Gets the objects contained in the given selection.
*
* @param selection the selection
* @return an array with object, may be empty.
*/
public static Object[] getObjects( ISelection selection )
{
List<Object> list = getTypes( selection, Object.class );
return list.toArray( new Object[list.size()] );
}
}