/******************************************************************************
 * Copyright (c) 2008 g-Eclipse consortium 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Initial development of the original code was made for
 * project g-Eclipse founded by European Union
 * project number: FP6-IST-034327  http://www.geclipse.eu/
 *
 * Contributor(s):
 *     PSNC: 
 *      - Katarzyna Bylec (katis@man.poznan.pl)
 *           
 *****************************************************************************/
package eu.geclipse.servicejob.ui.internal;

import java.util.List;

import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;

import eu.geclipse.core.model.IGridResource;

public class CategoryResourcesTreeCProvider implements ITreeContentProvider {

  public Object[] getChildren( final Object parentElement ) {
    Object[] result = null;
    if( parentElement instanceof CategoryContainer ) {
      List<IGridResource> list = ( ( CategoryContainer )parentElement ).getContainedResources();
      if( list.size() != 0 ) {
        result = new Object[ list.size() ];
        result = list.toArray( result );
      }
    }
    return result;
  }

  public Object getParent( final Object element ) {
    // TODO Auto-generated method stub
    return null;
  }

  public boolean hasChildren( final Object element ) {
    boolean result = false;
    if( element instanceof CategoryContainer
        && ( ( CategoryContainer )element ).getContainedResources().size() != 0 )
    {
      result = true;
    }
    return result;
  }

  public Object[] getElements( final Object inputElement ) {
    Object[] result = null;
    if( inputElement instanceof CategoryContainer[] ) {
      result = ( Object[] )inputElement;
    }
    return result;
  }

  public void dispose() {
    // TODO Auto-generated method stub
  }

  public void inputChanged( final Viewer viewer,
                            final Object oldInput,
                            final Object newInput )
  {
    // TODO Auto-generated method stub
  }
}