AnnotationDataLoader.java example

Explorer
openmicroscopy-master
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package org.openmicroscopy.shoola.agents.fsimporter;


import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;

import org.openmicroscopy.shoola.agents.fsimporter.view.Importer;
import org.openmicroscopy.shoola.agents.treeviewer.DataBrowserLoader;
import omero.gateway.SecurityContext;
import org.openmicroscopy.shoola.env.data.views.CallHandle;

import omero.gateway.model.FileAnnotationData;
import omero.gateway.model.FilesetData;

/**
 * Loads the annotations of a given type linked to the specified image.
 *
 * @author Jean-Marie Burel     
 * <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
 * @since 4.4
 */
public class AnnotationDataLoader
	extends DataImporterLoader
{

	/** Handle to the asynchronous call so that we can cancel it.*/
	private CallHandle handle;
	
	/** The index of the UI element.*/
	private int index;
	
	/** The identifier of the image.*/
	private long fileSetID;
	
	/**
	 * Creates a new instance.
	 * 
	 * @param viewer The Importer this data loader is for.
	 * Mustn't be <code>null</code>.
     * @param ctx The security context.
	 * @param fileSetID The identifier of the fileset.
	 * @param index The index of the UI element.
	 */
	public AnnotationDataLoader(Importer viewer, SecurityContext ctx,
			long fileSetID, int index)
	{
		super(viewer, ctx);
		this.fileSetID = fileSetID;
		this.index = index;
	}
	
	/** 
	 * Loads the annotations.
	 * @see DataImporterLoader#load()
	 */
	public void load()
	{
		List<String> nsInclude = new ArrayList<String>();
		nsInclude.add(FileAnnotationData.LOG_FILE_NS);
		handle = mhView.loadAnnotations(ctx, FilesetData.class,
				Arrays.asList(fileSetID), FileAnnotationData.class, nsInclude,
				null, this);
	}
	
	/** 
	 * Cancels the data loading.
	 * @see DataImporterLoader#load()
	 */
	public void cancel() { handle.cancel(); }

    /**
     * Feeds the result back to the viewer.
     * @see DataBrowserLoader#handleResult(Object)
     */
	public void handleResult(Object result)
	{
		if (viewer.getState() == Importer.DISCARDED) return;
		Map<Long, Collection<FileAnnotationData>> map =
				(Map<Long, Collection<FileAnnotationData>>) result;
		viewer.setImportLogFile(map.get(fileSetID), fileSetID, index);
	}
}