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/**
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*
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*/
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package eu.etaxonomy.taxeditor.navigation.navigator.e4.handler;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.UUID;
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import javax.inject.Named;
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import org.eclipse.core.commands.operations.AbstractOperation;
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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.e4.core.di.annotations.CanExecute;
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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.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.TreeSelection;
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import org.eclipse.swt.widgets.Shell;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolderMock;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.navigation.l10n.Messages;
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import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigatorLabels;
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import eu.etaxonomy.taxeditor.navigation.navigator.operation.RemotingChangeAcceptedTaxonToSynonymOperation;
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import eu.etaxonomy.taxeditor.operation.e4.RemotingCdmHandlerE4;
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import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonNodeSelectionDialog;
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/**
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*
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* @author pplitzner
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* @since Sep 6, 2017
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*
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*/
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public class RemotingChangeAcceptedTaxonToSynonymHandlerE4 extends RemotingCdmHandlerE4 {
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private TaxonNode oldTaxonNode;
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public RemotingChangeAcceptedTaxonToSynonymHandlerE4() {
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super(TaxonNavigatorLabels.CHANGE_ACCEPTED_TAXON_TO_SYNONYM_LABEL);
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}
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@Override
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public IStatus allowOperations(IStructuredSelection selection,
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Shell shell,
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MPart activePart,
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MHandledMenuItem menuItem) {
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// check that only a single taxon tree node has been selected
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if(selection.size() > 1) {
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return new Status(IStatus.ERROR,
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"unknown", //$NON-NLS-1$
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TaxonNavigatorLabels.SINGLE_TAXON_SELECTION_MESSAGE);
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}
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// check for no taxon tree node selected
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if(selection.size() == 0) {
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return new Status(IStatus.ERROR,
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"unknown", //$NON-NLS-1$
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TaxonNavigatorLabels.NO_TAXON_SELECTION_MESSAGE);
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}
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// check that selected object is a taxon node
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Object obj = selection.iterator().next();
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if(obj instanceof TaxonNode && ((TaxonNode)obj).hasTaxon()) {
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oldTaxonNode = (TaxonNode)obj;
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} else {
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if (obj instanceof TaxonNode && !((TaxonNode)obj).hasTaxon()){
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return new Status(IStatus.ERROR,
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"Operation not available for Classifications", //$NON-NLS-1$
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TaxonNavigatorLabels.SELECTED_OBJECT_NOT_TREE_NODE_MESSAGE);
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}
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return new Status(IStatus.ERROR,
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"unknown", //$NON-NLS-1$
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TaxonNavigatorLabels.SELECTED_OBJECT_NOT_TREE_NODE_MESSAGE);
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}
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// check that the source taxon node does not have children
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if(oldTaxonNode.getCountChildren() > 0) {
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return new Status(IStatus.ERROR,
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"unknown", //$NON-NLS-1$
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TaxonNavigatorLabels.SOURCE_TAXON_HAS_CHILDREN_MESSAGE);
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}
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// check if corresponding name editor is closed
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EditorUtil.closeObsoleteEditor(oldTaxonNode, partService);
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return Status.OK_STATUS;
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}
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@Override
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public AbstractOperation prepareOperation(IStructuredSelection selection,
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Shell shell,
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MPart activePart,
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MHandledMenuItem menuItem) {
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List<UUID> excludeTaxa = new ArrayList<UUID>();
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excludeTaxa.add(oldTaxonNode.getTaxon().getUuid());
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TaxonNode newAcceptedTaxonNode = TaxonNodeSelectionDialog.select(shell,
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new ConversationHolderMock(),
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Messages.RemotingChangeAcceptedTaxonToSynonymHandler_CHOOSE_TAXON,
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excludeTaxa,
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oldTaxonNode,
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oldTaxonNode.getClassification());
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if (newAcceptedTaxonNode == null) {
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return null;
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}
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RemotingChangeAcceptedTaxonToSynonymOperation rcattso =
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new RemotingChangeAcceptedTaxonToSynonymOperation(getTrigger(),
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false,
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oldTaxonNode.getUuid(),
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newAcceptedTaxonNode.getUuid());
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return rcattso;
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}
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@CanExecute
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private boolean canExecute(@Named(IServiceConstants.ACTIVE_SELECTION)TreeSelection selection, MHandledMenuItem menuItem){
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boolean canExecute = false;
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canExecute = selection.getFirstElement() instanceof TaxonNode
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&& ((TaxonNode) selection.getFirstElement()).getTaxon()!=null;
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menuItem.setVisible(canExecute);
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return canExecute;
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}
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@Override
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public void onComplete() {
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected Object getTrigger() {
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return this;
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}
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}
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