gt: 		BatchCallTree cmd = new PlateWellsLoader(ctx, ids);
context: /*
   * org.openmicroscopy.shoola.env.data.views.DataManagerViewImpl
   *
   *------------------------------------------------------------------------------
   *  Copyright (C) 2006 University of Dundee. All rights reserved.
   *
   *
   * 	This program is free software; you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation; either version 2 of the License, or
   *  (at your option) any later version.
   *  This program is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *  
   *  You should have received a copy of the GNU General Public License along
   *  with this program; if not, write to the Free Software Foundation, Inc.,
   *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   *------------------------------------------------------------------------------
   */
  
  package org.openmicroscopy.shoola.env.data.views;
  
  //Java imports
  import java.io.File;
  import java.util.Collection;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  //Third-party libraries
  
  //Application-internal dependencies
  import org.openmicroscopy.shoola.env.data.model.DeletableObject;
  import org.openmicroscopy.shoola.env.data.model.TimeRefObject;
  import org.openmicroscopy.shoola.env.data.model.TransferableObject;
  import omero.gateway.SecurityContext;
  import org.openmicroscopy.shoola.env.data.views.calls.AnnotationParentLoader;
  import org.openmicroscopy.shoola.env.data.views.calls.ChannelDataSaver;
  import org.openmicroscopy.shoola.env.data.views.calls.ChannelMetadataLoader;
  import org.openmicroscopy.shoola.env.data.views.calls.ContainerCounterLoader;
  import org.openmicroscopy.shoola.env.data.views.calls.DMLoader;
  import org.openmicroscopy.shoola.env.data.views.calls.DMRefreshLoader;
  import org.openmicroscopy.shoola.env.data.views.calls.DataObjectRemover;
  import org.openmicroscopy.shoola.env.data.views.calls.DataObjectSaver;
  import org.openmicroscopy.shoola.env.data.views.calls.DataObjectTransfer;
  import org.openmicroscopy.shoola.env.data.views.calls.ExistingObjectsSaver;
  import org.openmicroscopy.shoola.env.data.views.calls.ExperimenterImagesCounter;
  import org.openmicroscopy.shoola.env.data.views.calls.FilesChecker;
  import org.openmicroscopy.shoola.env.data.views.calls.ImageSplitChecker;
  import org.openmicroscopy.shoola.env.data.views.calls.ImagesLoader;
  import org.openmicroscopy.shoola.env.data.views.calls.PixelsDataLoader;
  import org.openmicroscopy.shoola.env.data.views.calls.PlateWellsLoader;
  import org.openmicroscopy.shoola.env.data.views.calls.RepositoriesLoader;
  import org.openmicroscopy.shoola.env.data.views.calls.TagsLoader;
  import org.openmicroscopy.shoola.env.data.views.calls.ThumbnailLoader;
  import org.openmicroscopy.shoola.env.event.AgentEventListener;
  
  import pojos.ChannelData;
  import pojos.DataObject;
  import pojos.ImageData;
  
  /** 
  * Implementation of the {@link DataManagerView} implementation.
  *
  * @author  Jean-Marie Burel &nbsp;&nbsp;&nbsp;&nbsp;
  * 				<a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
  * @author  <br>Andrea Falconi &nbsp;&nbsp;&nbsp;&nbsp;
  *              <a href="mailto:a.falconi@dundee.ac.uk">
  *                  a.falconi@dundee.ac.uk</a>
  * @version 2.2
  * <small>
  * (<b>Internal version:</b> $Revision$ $Date$)
  * </small>
  * @since OME2.2
  */
  class DataManagerViewImpl
  	implements DataManagerView
  {
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#loadContainerHierarchy(SecurityContext, Class, List,
  	 * boolean, long, AgentEventListener)
  	 */
  	public CallHandle loadContainerHierarchy(SecurityContext ctx,
  			Class rootNodeType, List<Long> rootNodeIDs, boolean withLeaves,
  			long userID, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new DMLoader(ctx, rootNodeType, rootNodeIDs,
  				withLeaves, userID);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#loadImages(SecurityContext, long, boolean,
  	 * AgentEventListener)
  	 */
  	public CallHandle loadImages(SecurityContext ctx, long userID,
  			boolean orphan, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new ImagesLoader(ctx, userID, orphan);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#getImages(SecurityContext, Class, List, long,
  	 * AgentEventListener)
  	 */
  	public CallHandle getImages(SecurityContext ctx, Class nodeType,
  			List nodeIDs, long userID, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new ImagesLoader(ctx, nodeType, nodeIDs, userID);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#createDataObject(SecurityContext, DataObject,
  	 * DataObject, AgentEventListener)
  	 */
  	public CallHandle createDataObject(SecurityContext ctx, 
  		DataObject userObject, DataObject parent,
  			AgentEventListener observer)
  	{
  		BatchCallTree cmd = new DataObjectSaver(ctx, userObject, parent,
  				DataObjectSaver.CREATE);
  		return cmd.exec(observer);
  	} 
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#countContainerItems(Set, AgentEventListener)
  	 */
  	public CallHandle countContainerItems(SecurityContext ctx, Set rootIDs,
  			AgentEventListener observer)
  	{
  		BatchCallTree cmd = new ContainerCounterLoader(ctx, rootIDs);
  		return cmd.exec(observer);  
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#loadThumbnail(SecurityContext, ImageData, int, int,
  	 * long, AgentEventListener)
  	 */
  	public CallHandle loadThumbnail(SecurityContext ctx, ImageData image,
  		int maxWidth, int maxHeight, long userID, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new ThumbnailLoader(ctx, image, maxWidth, maxHeight,
  				userID);
  		return cmd.exec(observer);
  	}
  	
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#addExistingObjects(SecurityContext, Collection,
  	 * Collection, AgentEventListener)
  	 */
  	public CallHandle addExistingObjects(SecurityContext ctx, 
  		Collection parents, Collection children, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new ExistingObjectsSaver(ctx, parents, children,
  				false);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#addExistingObjects(SecurityContext, Map, Map
  	 *                                          AgentEventListener)
  	 */
  	public CallHandle addExistingObjects(SecurityContext ctx, Map toPaste,
  			Map toRemove, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new ExistingObjectsSaver(ctx, toPaste, toRemove,
  				false);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#cutAndPaste(SecurityContext, Map, Map, boolean,
  	 * AgentEventListener)
  	 */
  	public CallHandle cutAndPaste(SecurityContext ctx, Map toPaste, Map toCut,
  		boolean admin, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new ExistingObjectsSaver(ctx, toPaste, toCut,
  				admin);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#loadChannelsData(SecurityContext, long, long,
  	 * AgentEventListener)
  	 */
  	public CallHandle loadChannelsData(SecurityContext ctx, long pixelsID,
  			long userID, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new ChannelMetadataLoader(ctx, pixelsID, userID);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#refreshHierarchy(Class, Map, AgentEventListener)
  	 */
  	public CallHandle refreshHierarchy(Class rootNodeType,
  			Map<SecurityContext, List> m, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new DMRefreshLoader(rootNodeType, m);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#countExperimenterImages(SecurityContext, long, Map,
  	 * 												AgentEventListener)
  	 */
  	public CallHandle countExperimenterImages(SecurityContext ctx, long userID,
  			Map<Integer, TimeRefObject> m,
  			AgentEventListener observer)
  	{
  		BatchCallTree cmd = new ExperimenterImagesCounter(ctx, userID, m);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#loadTags(SecurityContext, Long, boolean, boolean,
  	 * long, long, AgentEventListener)
  	 */
  	public CallHandle loadTags(SecurityContext ctx, Long id, boolean dataObject,
  			boolean topLevel, long userID, long groupID,
  			AgentEventListener observer)
  	{
  		BatchCallTree cmd = new TagsLoader(ctx, id, dataObject, topLevel,
  				userID, groupID);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#loadPlateWells(Map, long, AgentEventListener)
  	 */
  	public CallHandle loadPlateWells(SecurityContext ctx, Map<Long, Long> ids,
  			long userID, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new PlateWellsLoader(ctx, ids, userID);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#delete(Map, AgentEventListener)
  	 */
  	public CallHandle delete(Map<SecurityContext, Collection<DeletableObject>>
  	 values, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new DataObjectRemover(values);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#checkFileFormat(List, AgentEventListener)
  	 */
  	public CallHandle checkFileFormat(List<File> list,
  			AgentEventListener observer)
  	{
  		BatchCallTree cmd = new FilesChecker(list);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#loadRepositories(SecurityContext, long,
  	 * AgentEventListener)
  	 */
  	public CallHandle loadRepositories(SecurityContext ctx, long userID,
  			AgentEventListener observer)
  	{
  		BatchCallTree cmd = new RepositoriesLoader(ctx, userID);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#loadParentsOfAnnotation(SecurityContext, long,
  	 * AgentEventListener)
  	 */
  	public CallHandle loadParentsOfAnnotation(SecurityContext ctx,
  			long annotationId, AgentEventListener observer)
  	{
  		BatchCallTree cmd = new AnnotationParentLoader(ctx, annotationId);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#changeGroup(TransferableObject, AgentEventListener)
  	 */
  	public CallHandle changeGroup(TransferableObject object,
  			AgentEventListener observer)
  	{
  		BatchCallTree cmd = new DataObjectTransfer(object);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#isLargeImage(SecurityContext, long,
  	 * AgentEventListener)
  	 */
  	public CallHandle isLargeImage(SecurityContext ctx, long pixelsID,
  			AgentEventListener observer)
  	{
  		BatchCallTree cmd = new PixelsDataLoader(ctx, pixelsID,
  				PixelsDataLoader.SIZE);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#saveChannelData(SecurityContext, List, List,
  	 * AgentEventListener)
  	 */
  	public CallHandle saveChannelData(SecurityContext ctx,
  			List<ChannelData> channels, List<DataObject> objects,
  			AgentEventListener observer) {
  		BatchCallTree cmd = new ChannelDataSaver(ctx, channels, objects);
  		return cmd.exec(observer);
  	}
  
  	/**
  	 * Implemented as specified by the view interface.
  	 * @see DataManagerView#loadPlateFromImage(SecurityContext, Collection,
  	 * AgentEventListener)
  	 */
  	public CallHandle loadPlateFromImage(SecurityContext ctx,
  			Collection<Long> ids, AgentEventListener observer)
  	{
  