eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/editor/definedterm/TermBasePropertyTester.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2009 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10 package eu.etaxonomy.taxeditor.editor.definedterm;
  11
  12 import org.eclipse.core.expressions.PropertyTester;
  13 import org.eclipse.jface.viewers.IStructuredSelection;
  14
  15 import eu.etaxonomy.cdm.model.common.CdmBase;
  16 import eu.etaxonomy.cdm.model.common.DefinedTermBase;
  17 import eu.etaxonomy.cdm.model.common.Marker;
  18 import eu.etaxonomy.cdm.model.common.MarkerType;
  19 import eu.etaxonomy.cdm.model.common.TermBase;
  20 import eu.etaxonomy.cdm.model.common.TermVocabulary;
  21
  22 /**
  23  * @author l.morris
  24  * @date 9 Jan 2012
  25  *
  26  */
  27 public class TermBasePropertyTester extends PropertyTester {
  28
  29         private static final String IS_MODIFIABLE = "isModifiable";
  30
  31
  32         /* (non-Javadoc)
  33          * @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object, java.lang.String, java.lang.Object[], java.lang.Object)
  34          */
  35         @Override
  36         public boolean test(Object receiver, String property, Object[] args,
  37                         Object expectedValue) {
  38
  39                 IStructuredSelection selection = (IStructuredSelection) receiver;
  40                 CdmBase selectedElement = (CdmBase)selection.getFirstElement();
  41                 if (selectedElement.isInstanceOf(TermBase.class)){
  42                         TermBase term = CdmBase.deproxy(selectedElement, TermBase.class);
  43
  44                         if(IS_MODIFIABLE.equals(property)){
  45                                 return isModifiable(term);
  46                         }
  47                 }
  48
  49                 return false;
  50         }
  51
  52
  53         /**
  54          * Checks whether there is a {@link Marker} with the type {@link MarkerType#MODIFIABLE()} and if there is then return its value.
  55          *
  56          * @return The markers value if it exists
  57          */
  58         public static boolean isModifiable(TermBase termBase) {
  59                 if (termBase == null){
  60                         return true;
  61                 }
  62
  63                 TermVocabulary vocabulary = null;
  64
  65                 if(termBase instanceof DefinedTermBase){
  66                         vocabulary = ((DefinedTermBase) termBase).getVocabulary();
  67                 }else if(termBase instanceof TermVocabulary){
  68                         vocabulary = (TermVocabulary) termBase;
  69                 }
  70
  71                 if(vocabulary == null){
  72                         return true;
  73                 }
  74
  75                 for(Marker vocabularyMarker : vocabulary.getMarkers()){
  76                         if(vocabularyMarker.getMarkerType().equals(MarkerType.MODIFIABLE())){
  77                                 return vocabularyMarker.getValue();
  78                         }
  79                 }
  80
  81                 return true;
  82         }
  83
  84 }