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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.bulkeditor.referencingobjects;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.List;
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import java.util.Set;
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import java.util.UUID;
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import org.apache.log4j.Logger;
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import org.eclipse.core.runtime.IProgressMonitor;
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import org.eclipse.core.runtime.IStatus;
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import org.eclipse.core.runtime.Status;
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import org.eclipse.core.runtime.jobs.Job;
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import org.eclipse.jface.action.MenuManager;
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import org.eclipse.jface.viewers.CellEditor;
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import org.eclipse.jface.viewers.ICellModifier;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.ITableLabelProvider;
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import org.eclipse.jface.viewers.TableViewer;
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import org.eclipse.jface.viewers.TableViewerColumn;
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import org.eclipse.jface.viewers.TextCellEditor;
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import org.eclipse.jface.viewers.TreeNode;
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import org.eclipse.jface.viewers.Viewer;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Control;
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import org.eclipse.swt.widgets.Display;
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import org.eclipse.swt.widgets.Menu;
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import org.eclipse.swt.widgets.Table;
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import org.eclipse.ui.IWorkbenchPart;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
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import eu.etaxonomy.cdm.api.service.IAgentService;
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import eu.etaxonomy.cdm.api.service.IDescriptionService;
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import eu.etaxonomy.cdm.api.service.IGroupService;
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import eu.etaxonomy.cdm.api.service.IMediaService;
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import eu.etaxonomy.cdm.api.service.INameService;
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import eu.etaxonomy.cdm.api.service.IOccurrenceService;
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import eu.etaxonomy.cdm.api.service.IReferenceService;
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import eu.etaxonomy.cdm.api.service.ITaxonService;
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import eu.etaxonomy.cdm.api.service.IUserService;
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import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
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import eu.etaxonomy.cdm.model.agent.TeamOrPersonBase;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.common.Group;
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import eu.etaxonomy.cdm.model.common.IdentifiableEntity;
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import eu.etaxonomy.cdm.model.common.User;
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import eu.etaxonomy.cdm.model.description.DescriptionBase;
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import eu.etaxonomy.cdm.model.media.Media;
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import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
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import eu.etaxonomy.cdm.model.name.NonViralName;
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import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
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import eu.etaxonomy.cdm.model.reference.Reference;
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import eu.etaxonomy.cdm.model.taxon.TaxonBase;
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import eu.etaxonomy.taxeditor.model.DescriptionHelper;
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import eu.etaxonomy.taxeditor.session.ICdmEntitySession;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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import eu.etaxonomy.taxeditor.view.AbstractCdmViewPart;
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/**
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* @author p.ciardelli
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* @created 08.07.2009
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* @version 1.0
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*/
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public class ReferencingObjectsView extends AbstractCdmViewPart {
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private static final Logger logger = Logger
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.getLogger(ReferencingObjectsView.class);
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public static final String ID = "eu.etaxonomy.taxeditor.bulkeditor.view.referencingobjects";
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private TableViewer viewer;
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private String referencedObjectTitleCache;
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private ConversationHolder conversation;
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private final ICdmEntitySession cdmEntitySession;
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public ReferencingObjectsView() {
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cdmEntitySession = CdmStore.getCurrentSessionManager().bindNullSession();
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}
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/** {@inheritDoc} */
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@Override
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public void createViewer(Composite parent) {
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selectionService.addSelectionListener(this);
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conversation = CdmStore.createConversation();
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viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL
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| SWT.V_SCROLL | SWT.FULL_SELECTION);
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createColumns(viewer);
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viewer.setContentProvider(new ReferencingObjectsContentProvider());
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viewer.setLabelProvider(new ReferencingObjectsLabelProvider());
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viewer.setCellModifier(new ICellModifier() {
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@Override
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public void modify(Object element, String property, Object value) {
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}
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@Override
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public Object getValue(Object element, String property) {
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ITableLabelProvider tableLabelProvider = null;
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if(viewer.getLabelProvider() instanceof ITableLabelProvider){
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tableLabelProvider = (ITableLabelProvider) viewer.getLabelProvider();
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}
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Object[] columnProperties = viewer.getColumnProperties();
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for (int i=0;i<columnProperties.length;i++) {
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if(columnProperties[i].equals(property) && tableLabelProvider!=null){
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return tableLabelProvider.getColumnText(element, i);
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}
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}
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return "";
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}
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@Override
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public boolean canModify(Object element, String property) {
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return true;
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}
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});
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//create context menu
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MenuManager menuManager = new MenuManager();
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getSite().registerContextMenu(menuManager, viewer);
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Control control = viewer.getControl();
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Menu menu = menuManager.createContextMenu(control);
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control.setMenu(menu);
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// Propagate selection from viewer
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getSite().setSelectionProvider(viewer);
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}
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/**
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* Create the columns for the table
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* @param viewer
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*/
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private void createColumns(TableViewer viewer) {
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Table table = viewer.getTable();
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String[] titles = {"Class", "Description", "UUID", "Object ID" };
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int[] bounds = { 100, 200, 100, 70};
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CellEditor[] editors = new CellEditor[titles.length];
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for (int i = 0; i < titles.length; i++) {
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TableViewerColumn column = new TableViewerColumn(viewer, SWT.NONE);
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editors[i] = new TextCellEditor(table);
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column.getColumn().setText(titles[i]);
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column.getColumn().setWidth(bounds[i]);
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column.getColumn().setResizable(true);
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column.getColumn().setMoveable(true);
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}
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table.setHeaderVisible(true);
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table.setLinesVisible(true);
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viewer.setCellEditors(editors);
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viewer.setColumnProperties(titles);
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}
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@Override
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public void setFocus() {
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cdmEntitySession.bind();
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}
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public void updateReferencingObjects(final UUID entityUUID, final Class objectClass) {
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final Display display = Display.getCurrent();
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Job job = new Job("Update Referencing Objects") {
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@Override
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protected IStatus run(IProgressMonitor monitor) {
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monitor.beginTask("Calculating referencing objects", 10);
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monitor.worked(3);
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display.asyncExec(new Runnable() {
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@Override
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public void run() {
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if (entityUUID != null){
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ICdmEntitySession previousCdmEntitySession = CdmStore.getCurrentSessionManager().getActiveSession();
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cdmEntitySession.bind();
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List<CdmBase> referencingObjects = getReferencingObjects(entityUUID, objectClass);
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if(previousCdmEntitySession != null) {
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previousCdmEntitySession.bind();
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}
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updateView(referencingObjects);
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}
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}
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});
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monitor.done();
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return Status.OK_STATUS;
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}
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};
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job.setPriority(Job.DECORATE);
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job.schedule();
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}
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private List<CdmBase> getReferencingObjects(UUID entity, Class objectClass) {
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CdmBase referencedObject = null;
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try {
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if (objectClass.getSuperclass().equals(TeamOrPersonBase.class) ){
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referencedObject = CdmStore.getService(IAgentService.class).load(entity);
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} else if (objectClass.getSuperclass().equals(NonViralName.class)){
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referencedObject = CdmStore.getService(INameService.class).load(entity);
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} else if (objectClass.getSuperclass().equals(TaxonBase.class)){
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referencedObject = CdmStore.getService(ITaxonService.class).load(entity);
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} else if (objectClass.equals(Reference.class)){
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referencedObject = CdmStore.getService(IReferenceService.class).load(entity);
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} else if (objectClass.getSuperclass().equals(SpecimenOrObservationBase.class)){
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referencedObject = CdmStore.getService(IOccurrenceService.class).load(entity);
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} else if (objectClass.isAssignableFrom(User.class)){
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referencedObject = CdmStore.getService(IUserService.class).load(entity);
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} else if (objectClass.isAssignableFrom(Group.class)){
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referencedObject = CdmStore.getService(IGroupService.class).load(entity);
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} else if (objectClass.isAssignableFrom(Media.class)){
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referencedObject = CdmStore.getService(IMediaService.class).load(entity);
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} else if (DescriptionBase.class.isAssignableFrom(objectClass)){
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referencedObject = CdmStore.getService(IDescriptionService.class).load(entity);
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} else if (DescriptionElementBase.class.isAssignableFrom(objectClass)){
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referencedObject = CdmStore.getService(IDescriptionService.class).loadDescriptionElement(entity, null);
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}
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//referencedObject =(CdmBase) CdmStore.getService(IIdentifiableEntityService.class).load(referencedObject.getUuid());
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Set<CdmBase> setOfReferencingObjects = null;
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if (referencedObject != null){
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if(referencedObject.isInstanceOf(IdentifiableEntity.class)){
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referencedObjectTitleCache = (HibernateProxyHelper.deproxy(referencedObject, IdentifiableEntity.class)).getTitleCache();
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}
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else if(referencedObject.isInstanceOf(DescriptionElementBase.class)){
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referencedObjectTitleCache = DescriptionHelper.getLabel(referencedObject);
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}
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else{
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referencedObjectTitleCache = null;
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}
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setOfReferencingObjects = CdmStore.getCommonService().getReferencingObjects(referencedObject);
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}
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if (setOfReferencingObjects != null){
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List<CdmBase> referencingObjects = new ArrayList<CdmBase>(setOfReferencingObjects);
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Collections.sort(referencingObjects, new ReferencingClassComparator());
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return referencingObjects;
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}
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} catch (Exception e) {
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logger.error("Error retrieving referencing objects", e);
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setContentDescription("The referencing objects view could not be loaded completely. Some Problems occured.");
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}
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return null;
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}
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class ReferencingClassComparator implements Comparator<CdmBase> {
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@Override
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public int compare(CdmBase o1, CdmBase o2) {
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String string1 = o1.getClass().getSimpleName();
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String string2 = o2.getClass().getSimpleName();
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int classCompare = string1.compareToIgnoreCase(string2);
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if (classCompare == 0) {
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string1 = DescriptionHelper.getObjectDescription(o1);
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string2 = DescriptionHelper.getObjectDescription(o2);
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return string1.compareToIgnoreCase(string2);
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} else {
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return classCompare;
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}
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}
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}
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private void updateView(List<CdmBase> referencingObjects) {
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if (viewer != null && !viewer.getControl().isDisposed()){
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try{
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viewer.setInput(referencingObjects);
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if (referencedObjectTitleCache != null){
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setContentDescription("'" + referencedObjectTitleCache + "' is referenced by:");
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} else {
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setContentDescription("");
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}
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showViewer();
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}catch(Exception e){
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setContentDescription("The referencing objects view could not be loaded completely. Some Problems occured.");
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}
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}
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}
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/** {@inheritDoc} */
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@Override
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public void selectionChanged(IWorkbenchPart part, ISelection selection) {
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if(part == this){
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return;
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}
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if(selection instanceof IStructuredSelection){
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showViewer(part, (IStructuredSelection) selection);
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}
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}
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/** {@inheritDoc} */
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@Override
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public void showViewer(IWorkbenchPart part, IStructuredSelection selection) {
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// this.part = part;
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Object firstElement = selection.getFirstElement();
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if(firstElement instanceof TreeNode){
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firstElement = ((TreeNode) firstElement).getValue();
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}
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if(firstElement instanceof CdmBase){
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updateReferencingObjects(((CdmBase) firstElement).getUuid(),firstElement.getClass() );
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}
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else{
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updateView(null);
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setContentDescription("");
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}
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}
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/** {@inheritDoc} */
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@Override
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public void dispose() {
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conversation.close();
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selectionService.removePostSelectionListener(this);
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selectionService.removeSelectionListener(this);
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cdmEntitySession.dispose();
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super.dispose();
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}
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/** {@inheritDoc} */
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@Override
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public Viewer getViewer() {
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return viewer;
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}
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/** {@inheritDoc} */
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@Override
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public void changed(Object object) {
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// no editing in this view
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}
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/** {@inheritDoc} */
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@Override
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public boolean onComplete() {
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return false;
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}
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public void refresh(){
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selectionService.removePostSelectionListener(this);
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selectionService.removeSelectionListener(this);
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selectionService.addPostSelectionListener(this);
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selectionService.addSelectionListener(this);
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}
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}
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