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/**
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* Copyright (C) 2009 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.editor.definedterm;
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import java.util.Collection;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.SortedSet;
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import org.eclipse.jface.viewers.ITreeContentProvider;
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import org.eclipse.jface.viewers.Viewer;
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import eu.etaxonomy.cdm.model.common.DefinedTermBase;
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import eu.etaxonomy.cdm.model.common.TermVocabulary;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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* @author l.morris
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* @date 8 Dec 2011
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*
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*/
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public class TermContentProvider implements ITreeContentProvider {
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IContentProvider#dispose()
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*/
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@Override
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public void dispose() {
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// TODO Auto-generated method stub
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
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*/
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@Override
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public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
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// TODO Auto-generated method stub
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
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*/
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@Override
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public Object[] getElements(Object inputElement) {
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Collection<TermVocabulary> inputElements = (Collection<TermVocabulary>) inputElement;
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return inputElements.toArray();
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
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*/
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@Override
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public Object[] getChildren(Object parentElement) {
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if(parentElement instanceof TermVocabulary){
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return getTopLevelElements((TermVocabulary)parentElement);
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} else if (parentElement instanceof DefinedTermBase) {
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Set<Object> includes = ((DefinedTermBase) parentElement).getIncludes();
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Set<Object> generalizationOfs = ((DefinedTermBase) parentElement).getGeneralizationOf();
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generalizationOfs.addAll(includes);
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return generalizationOfs.toArray();
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}
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return null;
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}
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/**
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*
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* @param vocabulary
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* @return An array of DefinedTermBase objects that do not have parents
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*
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* TODO: Needs to be implemented in cdmlib
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*/
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private Object[] getTopLevelElements(TermVocabulary vocabulary) {
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SortedSet<DefinedTermBase> terms = vocabulary.getTermsOrderedByLabels(CdmStore.getDefaultLanguage());
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Set<DefinedTermBase> topLevelTerms = new HashSet<DefinedTermBase>();
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for (DefinedTermBase term : terms){
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if (term.getPartOf() == null && term.getKindOf() == null){
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topLevelTerms.add(term);
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}
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}
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return topLevelTerms.toArray();
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
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*/
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@Override
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public Object getParent(Object element) {
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if(element instanceof DefinedTermBase){
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DefinedTermBase definedTermBase = (DefinedTermBase)element;
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if (definedTermBase.getPartOf() != null) {
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return definedTermBase.getPartOf();
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}else if (definedTermBase.getKindOf() != null) {
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return definedTermBase.getKindOf();
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} else {
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return definedTermBase.getVocabulary();
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}
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}
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return null;
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
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*/
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@Override
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public boolean hasChildren(Object element) {
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if (getChildren(element) != null){
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return getChildren(element).length > 0;
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}
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return false;
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}
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}
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