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/**
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*
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*/
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package eu.etaxonomy.taxeditor.navigation.navigator.handler;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.Iterator;
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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.commands.ExecutionEvent;
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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.jface.viewers.TreeSelection;
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import org.eclipse.ui.handlers.HandlerUtil;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolderMock;
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import eu.etaxonomy.cdm.model.taxon.ITaxonTreeNode;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.taxeditor.operation.RemotingCdmHandler;
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import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonNodeSelectionDialog;
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/**
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* <p>ChangeAcceptedTaxonToSynonymHandler class.</p>
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*
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* @author n.hoffmann
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* @created Jan 4, 2010
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* @version 1.0
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*/
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public class RemotingChangeAcceptedTaxonToSynonymHandler extends RemotingCdmHandler {
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private static final Logger logger = Logger
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.getLogger(RemotingChangeAcceptedTaxonToSynonymHandler.class);
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private static final String CHANGE_ACCEPTED_TAXON_TO_SYNONYM_LABEL = "Change Accepted Taxon to Synonym";
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private static final String SINGLE_TAXON_SELECTION_MESSAGE = "The operation move accepted taxon to synonymy is available only for a single taxon.";
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private static final String SOURCE_TAXON_HAS_CHILDREN_MESSAGE = "The accepted taxon must not have any childen. You need to move all childen to " +
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"another taxon node in the TaxonNavigator before attempting to turn the accepted " +
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"taxon into a synonym.";
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private static final String RELATED_EDITORS_NOT_CLOSED_MESSAGE = "Could not close related taxon anme editors. " +
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"Please close them manually.";
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private ITaxonTreeNode oldAcceptedTaxonNode;
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/**
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* @param label
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*/
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public RemotingChangeAcceptedTaxonToSynonymHandler() {
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super(CHANGE_ACCEPTED_TAXON_TO_SYNONYM_LABEL);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#allowOperations(org.eclipse.core.commands.ExecutionEvent)
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*/
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@Override
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public IStatus allowOperations(ExecutionEvent event) {
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TreeSelection selection = (TreeSelection) HandlerUtil.getCurrentSelection(event);
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// check that only a single taxon has been selected
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if(selection.size() > 0) {
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return new Status(IStatus.ERROR,
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"unknown",
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SINGLE_TAXON_SELECTION_MESSAGE);
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}
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Iterator selectionIterator = selection.iterator();
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Set<ITaxonTreeNode> treeNodes = new HashSet<ITaxonTreeNode>();
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ITaxonTreeNode treeNode = treeNodes.iterator().next();
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oldAcceptedTaxonNode = treeNode;
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// check that the source taxon node does not have children
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if(((TaxonNode)oldAcceptedTaxonNode).getCountChildren() > 0) {
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return new Status(IStatus.ERROR,
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"unknown",
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SOURCE_TAXON_HAS_CHILDREN_MESSAGE);
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}
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// check all editors related to this taxon node are closed
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boolean allEditorsClosed = true;
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for (ITaxonTreeNode tn : treeNodes){
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if(treeNode instanceof TaxonNode) {
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allEditorsClosed &= NavigatorHandlerUtils.closeObsoleteEditor(event, (TaxonNode) tn);
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}
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}
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if(allEditorsClosed != true) {
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return new Status(IStatus.ERROR,
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"unknown",
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RELATED_EDITORS_NOT_CLOSED_MESSAGE);
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}
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return Status.OK_STATUS;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#doOperations(org.eclipse.core.commands.ExecutionEvent)
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*/
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@Override
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public IStatus doOperations(ExecutionEvent event) {
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List<UUID> excludeTaxa = new ArrayList<UUID>();
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excludeTaxa.add(oldAcceptedTaxonNode.getUuid());
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TaxonNode newAcceptedTaxonNode = TaxonNodeSelectionDialog.select(HandlerUtil.getActiveShell(event),
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new ConversationHolderMock(),
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"Choose the accepted taxon",
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excludeTaxa,
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null,
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((TaxonNode)oldAcceptedTaxonNode).getClassification());
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if (newAcceptedTaxonNode == null) {
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return null;
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}
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// run operation
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return Status.OK_STATUS;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#postOperations(org.eclipse.core.commands.ExecutionEvent)
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*/
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@Override
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public void postOperations(ExecutionEvent event) {
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// TODO Auto-generated method stub
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}
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}
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