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/**
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*
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*/
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package eu.etaxonomy.taxeditor.editor.view.descriptive;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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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.api.service.ITermService;
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import eu.etaxonomy.cdm.model.common.Marker;
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import eu.etaxonomy.cdm.model.common.MarkerType;
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import eu.etaxonomy.cdm.model.description.DescriptionBase;
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import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
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import eu.etaxonomy.cdm.model.description.Feature;
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import eu.etaxonomy.cdm.model.description.FeatureTree;
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import eu.etaxonomy.cdm.model.description.IDescribable;
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import eu.etaxonomy.cdm.model.description.IndividualsAssociation;
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import eu.etaxonomy.taxeditor.editor.UsageTermCollection;
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import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
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import eu.etaxonomy.taxeditor.model.FeatureNodeContainerTree;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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import eu.etaxonomy.taxeditor.store.TermStore;
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/**
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* <p>DescriptiveContentProvider class.</p>
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*
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* @author p.ciardelli
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* @author n.hoffmann
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* @version $Id: $
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*/
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public class DescriptiveContentProvider implements ITreeContentProvider {
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protected static final Object[] NO_CHILDREN = new Object[0];
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protected Map<DescriptionBase<?>, FeatureNodeContainerTree> featureNodeContainerCache;
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private boolean showOnlyIndividualAssociations;
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public DescriptiveContentProvider(Map<DescriptionBase<?>, FeatureNodeContainerTree> featureNodeContainerCache) {
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this(featureNodeContainerCache, false);
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}
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/**
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* <p>Constructor for DescriptiveContentProvider.</p>
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*
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* @param featureNodeContainerCache a {@link java.util.Map} object.
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*/
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public DescriptiveContentProvider(Map<DescriptionBase<?>, FeatureNodeContainerTree> featureNodeContainerCache, boolean showOnlyIndividualAssociations) {
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this.featureNodeContainerCache = featureNodeContainerCache;
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this.showOnlyIndividualAssociations = showOnlyIndividualAssociations;
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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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/** {@inheritDoc} */
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@Override
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public Object[] getChildren(Object parentElement) {
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if (parentElement instanceof IDescribable<?>) {
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return getDescriptions((IDescribable<?>) parentElement).toArray();
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}
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else if (parentElement instanceof DescriptionBase<?>) {
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if ( ! ((DescriptionBase<?>) parentElement).isImageGallery()) {
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DescriptionBase<?> description = (DescriptionBase<?>) parentElement;
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FeatureNodeContainerTree containerTree = getContainerTreeForDesription(description);
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List<FeatureNodeContainer> children = containerTree.getRoot().getChildren();
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//filter out containers with no children
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List<FeatureNodeContainer> childrenWithChildren = new ArrayList<FeatureNodeContainer>();
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for (FeatureNodeContainer featureNodeContainer : children) {
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if(getChildren(featureNodeContainer).length>0){
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childrenWithChildren.add(featureNodeContainer);
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}
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}
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return childrenWithChildren.toArray();
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}
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}
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else if (parentElement instanceof FeatureNodeContainer){
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FeatureNodeContainer container = (FeatureNodeContainer) parentElement;
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if(container.isLeaf()){
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List<DescriptionElementBase> descriptionElements = container.getDescriptionElements();
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if(showOnlyIndividualAssociations){
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List<DescriptionElementBase> filteredDescriptionElements = new ArrayList<DescriptionElementBase>();
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for (DescriptionElementBase descriptionElement : descriptionElements) {
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if(descriptionElement instanceof IndividualsAssociation){
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filteredDescriptionElements.add(descriptionElement);
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}
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}
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descriptionElements = filteredDescriptionElements;
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}
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return descriptionElements.toArray();
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}else{
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return container.getChildren().toArray();
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}
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}
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return NO_CHILDREN;
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}
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private FeatureNodeContainerTree getContainerTreeForDesription(DescriptionBase<?> description){
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if(! featureNodeContainerCache.containsKey(description)){
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FeatureNodeContainerTree containerTree = new FeatureNodeContainerTree(description, getFeatureTree(description));
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featureNodeContainerCache.put(description, containerTree);
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}
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return featureNodeContainerCache.get(description);
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}
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/** {@inheritDoc} */
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@Override
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public boolean hasChildren(Object element) {
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if (element instanceof DescriptionBase<?>){
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DescriptionBase<?> description = (DescriptionBase<?>) element;
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FeatureNodeContainerTree containerTree = featureNodeContainerCache.get(description);
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if(containerTree != null && containerTree.getRoot() != null){
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return containerTree.getRoot().getChildren().size() != 0;
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}
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}
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return getChildren(element).length != 0;
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}
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/**
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* Retrieves the feature tree associated with the given description
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*
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* TODO as of now this is always the same thing because feature trees may not be associated
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* to descriptions yet.
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*
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* @param description
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* @return
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*/
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private FeatureTree getFeatureTree(DescriptionBase description){
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FeatureTree featureTree = null;
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// TODO change this to the feature tree associated with this taxon description
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if (description.hasStructuredData()){
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featureTree = PreferencesUtil.getDefaultFeatureTreeForStructuredDescription();
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}else{
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featureTree = PreferencesUtil.getDefaultFeatureTreeForTextualDescription();
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}
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// create a transient tree with all features if none was selected
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if(featureTree == null){
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featureTree = FeatureTree.NewInstance(TermStore.getTerms(Feature.class));
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}
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return featureTree;
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}
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/**
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* Get all descriptions associated with the given object
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* @param parentElement
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* @return
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*/
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protected List<DescriptionBase<?>> getDescriptions(IDescribable<?> parentElement) {
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Set<? extends DescriptionBase<?>> elementDescriptions = parentElement.getDescriptions();
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List<DescriptionBase<?>> resultDescriptions = new ArrayList<DescriptionBase<?>>();
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for(DescriptionBase<?> description : elementDescriptions){
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if(! description.isImageGallery()){
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MarkerType useMarkertype = (MarkerType) CdmStore.getService(ITermService.class).find(UsageTermCollection.uuidUseMarkerType);
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Set<Marker> descriptionMarkers = description.getMarkers();
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if(descriptionMarkers != null && !descriptionMarkers.isEmpty()) {
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for (Marker marker: descriptionMarkers) {
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if(!(marker.getMarkerType().equals(useMarkertype))) {
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resultDescriptions.add(description);
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}
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}
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}
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else {
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resultDescriptions.add(description);
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}
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}
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}
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return resultDescriptions;
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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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/** {@inheritDoc} */
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@Override
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public Object getParent(Object element) {
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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.IStructuredContentProvider#getElements(java.lang.Object)
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*/
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/** {@inheritDoc} */
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@Override
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public Object[] getElements(Object inputElement) {
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return getChildren(inputElement);
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}
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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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/**
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* <p>dispose</p>
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*/
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@Override
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public void dispose() {
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featureNodeContainerCache.clear();
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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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/** {@inheritDoc} */
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@Override
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public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {}
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public void toggleShowOnlyIndividualAssociations() {
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showOnlyIndividualAssociations = !showOnlyIndividualAssociations;
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}
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}
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