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

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