EDIT

package eu.etaxonomy.taxeditor.editor.descriptiveDataSet.handler;

import java.util.Iterator;

import java.util.List;

import java.util.UUID;

import java.util.stream.Collectors;

import javax.inject.Named;

import org.eclipse.core.runtime.ICoreRunnable;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.core.runtime.SubMonitor;

import org.eclipse.core.runtime.jobs.Job;

import org.eclipse.e4.core.di.annotations.Execute;

import org.eclipse.e4.ui.model.application.ui.basic.MPart;

import org.eclipse.e4.ui.services.IServiceConstants;

import org.eclipse.e4.ui.workbench.modeling.EPartService;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.swt.widgets.Shell;

import eu.etaxonomy.cdm.api.application.CdmApplicationState;

import eu.etaxonomy.cdm.api.service.UpdateResult;

import eu.etaxonomy.cdm.api.service.config.DeleteDescriptiveDataSetConfigurator;

import eu.etaxonomy.cdm.common.monitor.IRemotingProgressMonitor;

import eu.etaxonomy.cdm.model.description.DescriptiveDataSet;

import eu.etaxonomy.taxeditor.editor.EditorUtil;

import eu.etaxonomy.taxeditor.editor.descriptiveDataSet.DescriptiveDataSetNavigator;

import eu.etaxonomy.taxeditor.editor.internal.TaxeditorEditorPlugin;

import eu.etaxonomy.taxeditor.editor.l10n.Messages;

import eu.etaxonomy.taxeditor.model.MessagingUtils;

import eu.etaxonomy.taxeditor.store.CdmStore;

import eu.etaxonomy.taxeditor.ui.dialog.configurator.deleteConfigurator.DeleteConfiguratorDialog;

public class DeleteDescriptiveDataSetHandler {

    protected EPartService partService;

    @Execute

	public void execute(@Named(IServiceConstants.ACTIVE_SELECTION)IStructuredSelection selection,

	        @Named(IServiceConstants.ACTIVE_PART)MPart activePart,

	        @Named(IServiceConstants.ACTIVE_SHELL)Shell shell,

	        EPartService partService) {

//	    boolean confirm = MessagingUtils.confirmDialog(Messages.DeleteDescriptiveDataSetHandler_DELETE_TITLE, Messages.DeleteDescriptiveDataSetHandler_DELETE_MESSAGE);

	    this.partService = partService;

	    Object object = activePart.getObject();

	    if(!selection.isEmpty()  && object instanceof DescriptiveDataSetNavigator){

	        Iterator iterator = selection.iterator();

	        while(iterator.hasNext()){

	            Object next = iterator.next();

	            if(next instanceof DescriptiveDataSet){

	                DeleteDescriptiveDataSetConfigurator deleteConfig = new DeleteDescriptiveDataSetConfigurator();

	                if (!DeleteConfiguratorDialog.openConfirmWithConfigurator(deleteConfig, shell, Messages.DeleteDescriptiveDataSetHandler_DELETE_TITLE,  Messages.DeleteDescriptiveDataSetHandler_DELETE_MESSAGE)){

	                    return;

	                }

//	                    IDescriptiveDataSetService descriptiveDataSetService = CdmStore.getService(IDescriptiveDataSetService.class);

//	                    descriptiveDataSetService.delete(((DescriptiveDataSet) next).getUuid());

	                    deleteDescriptiveDataSet(((DescriptiveDataSet) next).getUuid(), deleteConfig);

	                    DescriptiveDataSetNavigator navigator = (DescriptiveDataSetNavigator) object;

	                    navigator.removeDescriptiveDataSet((DescriptiveDataSet) next);

	                    navigator.getConversationHolder().commit();

	                    navigator.getSelService().setSelection(null);

	                }

	                else{

	                    MessagingUtils.errorDialog(Messages.DeleteDescriptiveDataSetHandler_DELETE_FAILED_TITLE, DeleteDescriptiveDataSetHandler.class, Messages.DeleteDescriptiveDataSetHandler_DELETE_FAILED_MESSAGE, TaxeditorEditorPlugin.PLUGIN_ID, null, false);

	                    return;

	                }

	        }

	    }

	}

	private void deleteDescriptiveDataSet(UUID descriptiveDataSetUuid, DeleteDescriptiveDataSetConfigurator deleteConfig){

	    EditorUtil.closeObsoleteDescriptiveDatasetEditor(descriptiveDataSetUuid, partService);

        UUID monitorUuid =  CdmApplicationState.getLongRunningTasksService().deleteDescriptiveDataset(descriptiveDataSetUuid, deleteConfig);

        String jobLabel = "Delete descriptive dataset";

        Job job = Job.create(jobLabel, (ICoreRunnable) monitor -> {

            SubMonitor subMonitor = SubMonitor.convert(monitor);

            subMonitor.beginTask(jobLabel, IProgressMonitor.UNKNOWN);

            IRemotingProgressMonitor remotingMonitor;

            try {

                remotingMonitor = CdmStore.getProgressMonitorClientManager()

                        .pollMonitor(jobLabel,

                                monitorUuid,

                                50,

                                null,

                                (List)null,

                                subMonitor);

                Object resultObject = remotingMonitor.getResult();

                if(resultObject instanceof Exception){

                    MessagingUtils.errorDialog("Deleting descriptive dataset failed", this, "Deleting descriptive dataset was not successfull", TaxeditorEditorPlugin.PLUGIN_ID, (Exception)resultObject, true, true);

                }

                else if(resultObject instanceof UpdateResult){

                    UpdateResult result = (UpdateResult)resultObject;

                    if(!result.getExceptions().isEmpty() && result.isOk()){

                        MessagingUtils.messageDialog(Messages.DeleteDescriptiveDatasetHandler_Warning_Message, this,

                                String.format(Messages.DeleteDescriptiveDatasetHandler_Warning_Message, result.getExceptions()

                                        .stream().map(ex->ex.toString())

                                        .collect(Collectors.joining("\n"))));

                    }

                }

            } catch (InterruptedException e) {

                return;

            }

            monitor.done();

        });

        job.schedule();

    }

}