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// $Id$
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/**
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* Copyright (C) 2011 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.cdm.hibernate.search;
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import org.apache.lucene.document.Document;
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import org.apache.lucene.document.Field;
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import org.apache.lucene.document.Field.Index;
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import org.apache.lucene.document.Field.Store;
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import org.hibernate.search.bridge.FieldBridge;
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import org.hibernate.search.bridge.LuceneOptions;
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import eu.etaxonomy.cdm.model.description.TaxonDescription;
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import eu.etaxonomy.cdm.model.description.TaxonNameDescription;
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import eu.etaxonomy.cdm.model.name.TaxonNameBase;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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/**
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* This class bridge is needed to overcome limitations in hibernate search with polymorphism on associations. See:
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* <ol>
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* <li>"Support runtime polymorphism on associations (instead of defining the indexed properties based on the returned type"
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* (https://hibernate.onjira.com/browse/HSEARCH-438)</li>
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* <li>https://forum.hibernate.org/search.php?keywords=indexembedded+subclass&terms=all
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* &author=&sc=1&sf=all&sk=t&sd=d&sr=posts&st=0&ch=300&t=0&submit=Search</li>
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*</ol>
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* DEVELOPER NOTE: the problem is in {@link org.hibernate.search.engine.DocumentBuilderContainedEntity#initializeClass()} which
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* is not taking subclasses into account, so the <code>taxon</code> field defined in {@link TaxonDescription} is not
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* registered in the <code>propertiesMetdata</code>
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*
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* @author Andreas Kohlbecker
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* @date Dec 19, 2011
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*
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*/
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public class DescriptionBaseClassBridge extends AbstractClassBridge {
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/*
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* (non-Javadoc)
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*
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* @see org.hibernate.search.bridge.FieldBridge#set(java.lang.String,
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* java.lang.Object, org.apache.lucene.document.Document,
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* org.hibernate.search.bridge.LuceneOptions)
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*/
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public void set(String name, Object entity, Document document, LuceneOptions luceneOptions) {
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if (entity instanceof TaxonDescription) {
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Taxon taxon = ((TaxonDescription)entity).getTaxon();
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if (taxon != null) {
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idFieldBridge.set(name + "taxon.id", taxon.getId(), document, idFieldOptions);
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Field titleCachefield = new Field(name + "taxon.titleCache", taxon.getTitleCache(), Store.YES, Index.ANALYZED,
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luceneOptions.getTermVector());
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document.add(titleCachefield);
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Field titleCacheSortfield = new Field(name + "taxon.titleCache__sort", taxon.getTitleCache(), sortFieldOptions.getStore(), sortFieldOptions.getIndex(),
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luceneOptions.getTermVector());
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document.add(titleCacheSortfield);
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Field uuidfield = new Field(name + "taxon.uuid", taxon.getUuid().toString(), Store.YES, Index.ANALYZED,
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luceneOptions.getTermVector());
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document.add(uuidfield);
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for(TaxonNode node : taxon.getTaxonNodes()){
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if(node.getClassification() != null){
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idFieldBridge.set(name + "taxon.taxonNodes.classification.id", node.getClassification().getId(), document, idFieldOptions);
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}
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}
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}
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}
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if (entity instanceof TaxonNameDescription) {
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TaxonNameBase taxonName = ((TaxonNameDescription) entity).getTaxonName();
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if (taxonName != null) {
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idFieldBridge.set(name + "taxonName.id", taxonName.getId(), document, idFieldOptions);
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}
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}
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}
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}
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