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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.e4.handler;
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import java.util.HashSet;
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import java.util.Set;
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import javax.inject.Named;
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import org.eclipse.core.runtime.NullProgressMonitor;
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import org.eclipse.e4.core.di.annotations.CanExecute;
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import org.eclipse.e4.core.di.annotations.Execute;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
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import org.eclipse.e4.ui.services.IServiceConstants;
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import org.eclipse.jface.dialogs.MessageDialog;
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import org.eclipse.jface.viewers.StructuredSelection;
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import org.eclipse.swt.widgets.Shell;
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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.reference.Reference;
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import eu.etaxonomy.cdm.strategy.merge.MergeException;
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import eu.etaxonomy.taxeditor.bulkeditor.BulkEditorQuery;
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import eu.etaxonomy.taxeditor.bulkeditor.e4.BulkEditor;
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import eu.etaxonomy.taxeditor.bulkeditor.input.AbstractBulkEditorInput;
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import eu.etaxonomy.taxeditor.event.EventUtility;
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import eu.etaxonomy.taxeditor.event.WorkbenchEventConstants;
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import eu.etaxonomy.taxeditor.l10n.Messages;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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* Note: This merging is persisted only when saved. This handler only checks
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* if merging is possible and removes only the list items but <b>not</b> the
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* CDM entitites
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* @author pplitzner
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* @date 11.09.2017
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*
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*/
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public class MergeGroupHandlerE4 {
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@Execute
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public void execute(
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@Named(IServiceConstants.ACTIVE_PART)MPart activePart,
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@Named(IServiceConstants.ACTIVE_SHELL)Shell shell) {
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BulkEditor editor = (BulkEditor) activePart.getObject();
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AbstractBulkEditorInput input = editor.getEditorInput();
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Set<CdmBase> mergedCandidates = new HashSet<>();
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if(editor.isDirty()){
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String[] labels = {Messages.MergeGroupHandler_save, Messages.MergeGroupHandler_continue, Messages.MergeGroupHandler_cancel};
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MessageDialog dialog = new MessageDialog(null, Messages.MergeGroupHandler_SaveChanges, null, Messages.MergeGroupHandler_description,
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MessageDialog.QUESTION_WITH_CANCEL, 0, labels);
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dialog.open();
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int proceed = dialog.getReturnCode();
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boolean save = false;
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if (proceed == 0) {
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save = true;
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} else if (proceed == 2){
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return;
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}
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BulkEditorQuery lastQuery = editor.getLastQuery();
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editor.setLastQuery(null);
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editor.save(new NullProgressMonitor(), save);
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editor.setLastQuery(lastQuery);
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}
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// Check whether there are any group annotations
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Set<CdmBase> candidatesToMerge = input.getMergeCandidates();
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if (candidatesToMerge.size() == 0) {
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MessageDialog.openWarning(shell,
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"No merge candidates", "No objects have been chosen for merging.");
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return;
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}
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// Check whether group merge target has been set
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CdmBase mergeTarget = input.getMergeTarget();
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if (mergeTarget == null) {
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MessageDialog.openWarning(shell,
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"No group merge target set", "No group merge target has been set.");
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return;
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}
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TeamOrPersonBase<?> teamOrPerson = null;
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Reference ref = null;
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if (mergeTarget instanceof TeamOrPersonBase){
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teamOrPerson = HibernateProxyHelper.deproxy(mergeTarget, TeamOrPersonBase.class);
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} else if(mergeTarget instanceof Reference){
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ref = HibernateProxyHelper.deproxy(mergeTarget, Reference.class);
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}
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for (CdmBase item : candidatesToMerge) {
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//first check whether entities are mergeable
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try{
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if (ref != null){
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Reference ref2 = HibernateProxyHelper.deproxy(item, Reference.class);
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if (!CdmStore.getCommonService().isMergeable(ref, ref2, null)){
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MessageDialog.openWarning(shell,
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"No merge possible", "A merge of " + ref.getTitleCache() + " and " + ref2.getTitleCache() + " is not possible.");
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return;
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}
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input.getModel().remove(item);
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mergedCandidates.add(item);
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}
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if (teamOrPerson != null){
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TeamOrPersonBase<?> teamOrPerson2 = HibernateProxyHelper.deproxy(item, TeamOrPersonBase.class);
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if (!CdmStore.getCommonService().isMergeable(teamOrPerson, teamOrPerson2, null)){
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MessageDialog.openWarning(shell,
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"No merge possible", "A merge of " + teamOrPerson.getTitleCache() + " and " + teamOrPerson2.getTitleCache() + " is not possible.");
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return;
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}
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input.getModel().remove(item);
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mergedCandidates.add(item);
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}
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}catch(MergeException e){
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candidatesToMerge.clear();
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MessageDialog.openWarning(shell,
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"No merge possible", "A merge is not possible." + e.getLocalizedMessage());
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return;
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}
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}
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if (!candidatesToMerge.isEmpty()){
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input.getMergedEntities().put(mergeTarget, mergedCandidates);
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input.getMergeCandidates().clear();
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input.setMergeTarget(null);
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}
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editor.setDirty();
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editor.refresh();
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EventUtility.postAsyncEvent(WorkbenchEventConstants.BULK_EDITOR_SEARCH_FINISHED, new StructuredSelection(mergeTarget));
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}
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@CanExecute
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public boolean canExecute(@Named(IServiceConstants.ACTIVE_PART)MPart activePart,
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MHandledMenuItem menuItem) {
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boolean canExecute = false;
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BulkEditor editor = (BulkEditor) activePart.getObject();
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canExecute = !editor.getEditorInput().getMergeCandidates().isEmpty()
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&& editor.getEditorInput().getMergeTarget()!=null;
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menuItem.setVisible(canExecute);
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return canExecute;
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}
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}
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