taxeditor-editor/src/main/java/eu/etaxonomy/taxeditor/editor/handler/SaveTaxonHandler.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.editor.handler;
  11
  12 import java.util.Set;
  13
  14 import org.apache.log4j.Logger;
  15 import org.eclipse.core.commands.AbstractHandler;
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.jface.dialogs.MessageDialog;
  19 import org.eclipse.ui.handlers.HandlerUtil;
  20
  21 import eu.etaxonomy.cdm.model.name.TaxonNameBase;
  22 import eu.etaxonomy.cdm.model.taxon.Taxon;
  23 import eu.etaxonomy.cdm.model.taxon.TaxonBase;
  24 import eu.etaxonomy.cdm.model.taxon.TaxonRelationship;
  25 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  26 import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
  27 import eu.etaxonomy.taxeditor.editor.name.IterableSynonymyList;
  28
  29 /**
  30  * @author n.hoffmann
  31  * @created 23.03.2009
  32  * @version 1.0
  33  */
  34 public class SaveTaxonHandler extends AbstractHandler {
  35         private static final Logger logger = Logger
  36                         .getLogger(SaveTaxonHandler.class);
  37
  38         /* (non-Javadoc)
  39          * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  40          */
  41         public Object execute(ExecutionEvent event) throws ExecutionException {
  42
  43                 MultiPageTaxonEditor editor = EditorUtil.getActiveEditor();
  44                 // check for non zero length of taxon name
  45                 if(isNameZeroLength(editor.getTaxon().getName())){
  46                         MessageDialog.openWarning(HandlerUtil.getActiveShell(event), "No Name Specified", "An attempt was made to save a taxon with " +
  47                         "an empty name. Operation was cancelled.");
  48                         return null;
  49                 }
  50
  51                 if (!areRelatedNamesNonZeroLength(editor.getTaxon())) {
  52                         MessageDialog.openWarning(HandlerUtil.getActiveShell(event), "Zero-Length Name", "One of this taxon's relationships " +
  53                         "has a zero-length name. Operation was cancelled.");
  54                         logger.trace("Tero length name detected.");
  55                         return null;
  56                 }
  57
  58                 return EditorUtil.getActivePage().saveEditor(editor, false);
  59
  60         }
  61
  62         /**
  63          * @param name
  64          * @return
  65          */
  66         private boolean isNameZeroLength(TaxonNameBase<?, ?> name) {
  67                 if (name == null) {
  68                         return true;
  69                 }
  70                 return (name.getFullTitleCache().length() == 0);
  71         }
  72
  73         /**
  74          * @param taxon
  75          * @return
  76          */
  77         private boolean areRelatedNamesNonZeroLength(Taxon taxon) {
  78                 for (TaxonBase<?> taxonBase : new IterableSynonymyList(taxon)) {
  79                         if (isNameZeroLength(taxonBase.getName()) ) {
  80                                 return false;
  81                         }
  82                 }
  83                 Set<TaxonRelationship> taxonRelations = taxon.getTaxonRelations();
  84                 for (TaxonRelationship relationship : taxonRelations) {
  85                         if (isNameZeroLength(relationship.getToTaxon().getName()) ||
  86                                         isNameZeroLength(relationship.getFromTaxon().getName())) {
  87                                 return false;
  88                         }
  89                 }
  90                 return true;
  91         }
  92 }