Revision b227bf36
Added by Ben Clark over 15 years ago
| cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/persistence/dao/hibernate/AlternativeSpellingSuggestionParser.java | ||
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import org.hibernate.search.store.DirectoryProvider; |
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import org.springframework.beans.factory.annotation.Autowired; |
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import org.springframework.orm.hibernate3.support.HibernateDaoSupport; |
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import org.springmodules.lucene.index.factory.IndexFactory; |
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import org.springmodules.lucene.index.factory.LuceneIndexWriter; |
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import eu.etaxonomy.cdm.model.common.CdmBase; |
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import eu.etaxonomy.cdm.persistence.dao.IAlternativeSpellingSuggestionParser; |
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public abstract class AlternativeSpellingSuggestionParser<T extends CdmBase> extends HibernateDaoSupport implements |
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IAlternativeSpellingSuggestionParser {
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IAlternativeSpellingSuggestionParser {
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private static Log log = LogFactory.getLog(AlternativeSpellingSuggestionParser.class); |
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private String defaultField; |
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protected IndexFactory indexFactory; |
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protected Directory directory; |
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private Class<T> type; |
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private Class<? extends T> indexedClasses[]; |
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public AlternativeSpellingSuggestionParser(Class<T> type) {
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this.type = type; |
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} |
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public void setIndexedClasses(Class<? extends T> indexedClasses[]) {
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this.indexedClasses = indexedClasses; |
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} |
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public abstract void setDirectory(Directory directory); |
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public abstract void setIndexFactory(IndexFactory indexFactory); |
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@Autowired |
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public void setHibernateSessionFactory(SessionFactory sessionFactory) {
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super.setSessionFactory(sessionFactory); |
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} |
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public void setDefaultField(String defaultField) {
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this.defaultField = defaultField; |
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} |
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Query query = querySuggester.parse(queryString); |
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return querySuggester.hasSuggestedQuery() ? query : null; |
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} |
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private class QuerySuggester extends QueryParser {
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private boolean suggestedQuery = false; |
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public QuerySuggester(String field, Analyzer analyzer) {
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// Copied from org.apache.lucene.queryParser.QueryParser |
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// replacing construction of TermQuery with call to getTermQuery() |
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// which finds close matches. |
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TokenStream source = getAnalyzer().tokenStream(field, new StringReader(queryText));
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TokenStream source = getAnalyzer().tokenStream(field, new StringReader(queryText));
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Vector v = new Vector(); |
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Token t; |
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return q; |
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} |
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} |
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private Term getTerm(String field, String queryText) throws ParseException {
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try {
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SpellChecker spellChecker = new SpellChecker(directory); |
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if (spellChecker.exist(queryText)) {
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return suggestedQuery; |
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} |
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} |
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public void refresh() {
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FullTextSession fullTextSession = Search.createFullTextSession(getSession()); |
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FullTextSession fullTextSession = Search.getFullTextSession(getSession()); |
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SearchFactory searchFactory = fullTextSession.getSearchFactory(); |
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DirectoryProvider directoryProvider = searchFactory.getDirectoryProviders(type)[0]; |
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ReaderProvider readerProvider = searchFactory.getReaderProvider(); |
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IndexReader indexReader = null; |
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LuceneIndexWriter indexWriter = null; |
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try {
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try {
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indexWriter = indexFactory.getIndexWriter(); |
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indexReader = readerProvider.openReader(directoryProvider); |
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log.debug("Creating new dictionary for words in " + defaultField + " docs " + indexReader.numDocs());
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Dictionary dictionary = new LuceneDictionary(indexReader, defaultField); |
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if(log.isDebugEnabled()) {
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Iterator iterator = dictionary.getWordsIterator(); |
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while(iterator.hasNext()) {
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log.debug("Indexing word " + iterator.next());
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} |
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} |
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SpellChecker spellChecker = new SpellChecker(directory); |
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spellChecker.indexDictionary(dictionary); |
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} catch (CorruptIndexException cie) {
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log.error("Spellings index is corrupted", cie);
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} finally {
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if (indexReader != null) {
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readerProvider.closeReader(indexReader); |
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} |
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if(indexWriter != null) {
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indexWriter.close(); |
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} |
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SpellChecker spellChecker = new SpellChecker(directory); |
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for(Class<? extends T> indexedClass : indexedClasses) {
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DirectoryProvider directoryProvider = searchFactory.getDirectoryProviders(indexedClass)[0]; |
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ReaderProvider readerProvider = searchFactory.getReaderProvider(); |
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IndexReader indexReader = null; |
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try {
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indexReader = readerProvider.openReader(directoryProvider); |
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log.debug("Creating new dictionary for words in " + defaultField + " docs " + indexReader.numDocs());
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Dictionary dictionary = new LuceneDictionary(indexReader, defaultField); |
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if(log.isDebugEnabled()) {
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Iterator iterator = dictionary.getWordsIterator(); |
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while(iterator.hasNext()) {
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log.debug("Indexing word " + iterator.next());
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} |
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} |
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spellChecker.indexDictionary(dictionary); |
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} catch (CorruptIndexException cie) {
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log.error("Spellings index is corrupted", cie);
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} finally {
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if (indexReader != null) {
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readerProvider.closeReader(indexReader); |
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} |
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} |
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} |
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} catch (IOException ioe) {
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}catch (IOException ioe) {
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log.error(ioe); |
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} |
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} |
Also available in: Unified diff
Minor problems discovered whilst refactoring CATE:
Corrections to User / Group / Authority impl
Changes due to upgrade of hibernate-search