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package eu.etaxonomy.cdm.vaadin.container;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.Map;
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import com.vaadin.data.Item;
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import com.vaadin.data.util.HierarchicalContainer;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;
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import eu.etaxonomy.cdm.vaadin.util.CdmSpringContextHelper;
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public class TaxonNodeContainer extends HierarchicalContainer {
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private static final long serialVersionUID = 102401340698963360L;
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public static final String LABEL = "titleCache";
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private Map<Object, Object> itemCache = new HashMap<>();
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/**
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* Creates a new taxon node container
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* @param roots the root elements of the table
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*/
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public TaxonNodeContainer(Collection<UuidAndTitleCache<TaxonNode>> roots) {
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addContainerProperty(LABEL, String.class, "[no taxon]");
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for (UuidAndTitleCache<TaxonNode> root: roots) {
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addItem(root);
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addChildItems(root);
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Item addItem(Object itemId) {
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if(itemId instanceof UuidAndTitleCache){
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UuidAndTitleCache<TaxonNode> uuidAndTitleCache = (UuidAndTitleCache<TaxonNode>) itemId;
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Item item = super.addItem(itemId);
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item.getItemProperty(TaxonNodeContainer.LABEL).setValue(uuidAndTitleCache.getTitleCache());
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itemCache.put(((UuidAndTitleCache<TaxonNode>) itemId).getId(), false);
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return item;
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}
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return null;
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}
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/**
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* @param parent
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*/
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public void addChildItems(UuidAndTitleCache<TaxonNode> parent) {
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if(itemCache.get(parent.getId()).equals(Boolean.FALSE)){
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Collection<UuidAndTitleCache<TaxonNode>> children = CdmSpringContextHelper.getTaxonNodeService().listChildNodesAsUuidAndTitleCache(parent);
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setChildrenAllowed(parent, !children.isEmpty());
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for (UuidAndTitleCache<TaxonNode> child : children) {
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Item childItem = addItem(child);
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if(childItem!=null){
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setParent(child, parent);
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addChildItems(child);
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}
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/*
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Collection<UuidAndTitleCache<TaxonNode>> grandChildren = CdmSpringContextHelper.getTaxonNodeService().listChildNodesAsUuidAndTitleCache(child);
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setChildrenAllowed(child, !grandChildren.isEmpty());*/
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}
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itemCache.put(parent.getId(), true);
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}
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}
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}
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