Package org.apache.lucene.search

Examples of org.apache.lucene.search.Searcher

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    {
        IBasicResultSet result = new BasicResultSetImpl (false);

        try
        {
            Searcher searcher = new IndexSearcher(indexPath);

            Query query = QueryParser.parse(searchedText, TextContentIndexer.CONTENT_TEXT, analyzer);
            Hits hits = searcher.search (query);
            int noOfHits = hits.length();

            for (int i = 0; i < noOfHits; i++)
            {
                Document doc = hits.doc(i);
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    }
   
    private Set contains(String stringToFind) throws Exception
    {
        Set resultSet = new HashSet();
        Searcher searcher = new IndexSearcher (indexDb);
        Analyzer analyzer = new StandardAnalyzer();
       
        Query query = QueryParser.parse(stringToFind, "contents", analyzer);
       
        Hits hits = searcher.search(query);
       
        int noOfHits = hits.length();
        for (int i = 0; i < noOfHits; i++)
        {
            Document doc = hits.doc(i);
            String docId = doc.get(DOC_ID);
            resultSet.add(docId);
        }
        searcher.close();
        return resultSet;
    }
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    private void assertRecordCount( RepositoryContentIndex index, int expectedCount )
        throws Exception
    {
        Query query = new MatchAllDocsQuery();
        Searcher searcher = (Searcher) index.getSearchable();
        Hits hits = searcher.search( query );
        assertEquals( "Expected Record Count for " + index.getId(), expectedCount, hits.length() );
    }
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    IndexReader reader = IndexReader.open(index);

    if (normsField != null)
      reader = new OneNormsReader(reader, normsField);

    Searcher searcher = new IndexSearcher(reader);
    Analyzer analyzer = new StandardAnalyzer();

    BufferedReader in = null;
    if (queries != null) {
      in = new BufferedReader(new FileReader(queries));
    } else {
      in = new BufferedReader(new InputStreamReader(System.in, "UTF-8"));
    }

    while (true) {
      if (queries == null)                        // prompt the user
        System.out.print("Query: ");

      String line = in.readLine();

      if (line == null || line.length() == -1)
        break;

      Query query = QueryParser.parse(line, field, analyzer);
      System.out.println("Searching for: " + query.toString(field));

      Hits hits = searcher.search(query);
     
      if (repeat > 0) {                           // repeat & time as benchmark
        Date start = new Date();
        for (int i = 0; i < repeat; i++) {
          hits = searcher.search(query);
        }
        Date end = new Date();
        System.out.println("Time: "+(end.getTime()-start.getTime())+"ms");
      }
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        this.optimizeAfterUpdate = optimzeAfterUpdate;
        this.handlerFactory = handlerFactory;
       
        try
        {
            Searcher searcher = null;
            searcher = new IndexSearcher(rootIndexDir.getPath());
            searcher.close();
        }
        catch (Exception e)
        {
            if (rootIndexDir.exists())
            {
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    /* (non-Javadoc)
     * @see org.apache.jetspeed.search.SearchEngine#search(java.lang.String)
     */
    public SearchResults search(String queryString)
    {       
        Searcher searcher = null;
        Hits hits = null;
       
        try
        {
            searcher = new IndexSearcher(rootIndexDir.getPath());
        }
        catch (IOException e)
        {
            //logger.error("Failed to create index search using path " + rootDir.getPath());
            return null;
        }
       
        Analyzer analyzer = newAnalyzer();
       
        String[] searchFields = {ParsedObject.FIELDNAME_CONTENT, ParsedObject.FIELDNAME_DESCRIPTION, ParsedObject.FIELDNAME_FIELDS,
                           ParsedObject.FIELDNAME_KEY, ParsedObject.FIELDNAME_KEYWORDS, ParsedObject.FIELDNAME_LANGUAGE,
                           ParsedObject.FIELDNAME_SCORE, ParsedObject.FIELDNAME_TITLE, ParsedObject.FIELDNAME_TYPE,
                           ParsedObject.FIELDNAME_URL, ParsedObject.FIELDNAME_CLASSNAME};
                           
        Query query= null;
        try
        {
          String s[] = new String[searchFields.length];
          for(int i=0;i<s.length;i++)
            s[i] = queryString;
            query = MultiFieldQueryParser.parse(s, searchFields, analyzer);
//          Query query = QueryParser.parse(searchString, ParsedObject.FIELDNAME_CONTENT, analyzer);
        }
        catch (ParseException e)
        {
            List<ParsedObject> resultList = new ArrayList<ParsedObject>();
            SearchResults results = new SearchResultsImpl(resultList);
            return results;           
        }
       
        try
        {
            hits = searcher.search(query);
        }
        catch (IOException e)
        {
            List<ParsedObject> resultList = new ArrayList<ParsedObject>();
            SearchResults results = new SearchResultsImpl(resultList);
            return results;           
        }

        int hitNum = hits.length();
        List<ParsedObject> resultList = new ArrayList<ParsedObject>(hitNum);
        for(int i=0; i<hitNum; i++)
        {
            ParsedObject result = new BaseParsedObject();
            try
            {
              Document doc = hits.doc(i);
         
            addFieldsToParsedObject(doc, result);
           
            result.setScore(hits.score(i));
            Field type = doc.getField(ParsedObject.FIELDNAME_TYPE);
            if(type != null)
            {
                result.setType(type.stringValue());
            }
           
            Field key = doc.getField(ParsedObject.FIELDNAME_KEY);
            if(key != null)
            {
                result.setKey(key.stringValue());
            }
           
            Field description = doc.getField(ParsedObject.FIELDNAME_DESCRIPTION);
            if(description != null)
            {
                result.setDescription(description.stringValue());
            }
           
            Field title = doc.getField(ParsedObject.FIELDNAME_TITLE);
            if(title != null)
            {
                result.setTitle(title.stringValue());
            }
           
            Field content = doc.getField(ParsedObject.FIELDNAME_CONTENT);
            if(content != null)
            {
                result.setContent(content.stringValue());
            }
           
            Field language = doc.getField(ParsedObject.FIELDNAME_LANGUAGE);
            if (language != null)
            {
              result.setLanguage(language.stringValue());
            }
           
            Field classname = doc.getField(ParsedObject.FIELDNAME_CLASSNAME);
            if (classname != null)
            {
              result.setClassName(classname.stringValue());
            }
           
            Field url = doc.getField(ParsedObject.FIELDNAME_URL);
            if (url != null)
            {
                result.setURL(new URL(url.stringValue()));
            }
           
            Field[] keywords = doc.getFields(ParsedObject.FIELDNAME_KEYWORDS);
            if(keywords != null)
            {
              String[] keywordArray = new String[keywords.length];
             
              for(int j=0; j<keywords.length; j++)
              {
                Field keyword = keywords[j];
                keywordArray[j] = keyword.stringValue();
              }
             
              result.setKeywords(keywordArray);
            }
           
            resultList.add(i, result);
            }
            catch(IOException e)
            {
                //logger
            }
        }

        if (searcher != null)
        {
            try
            {
                searcher.close();
            }
            catch (IOException ioe)
            {
                //logger.error("Closing Searcher", ioe);
            }
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    private void assertRecordCount( RepositoryContentIndex index, int expectedCount )
        throws Exception
    {
        Query query = new MatchAllDocsQuery();
        Searcher searcher = (Searcher) index.getSearchable();
        Hits hits = searcher.search( query );
        assertEquals( "Expected Record Count for " + index.getId(), expectedCount, hits.length() );
    }
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    Path localDir = new Path(getUnitTestdir(getName()), "index_" +
      Integer.toString(new Random().nextInt()));
    this.fs.copyToLocalFile(new Path(INDEX_DIR), localDir);
    FileSystem localfs = FileSystem.getLocal(conf);
    Path [] indexDirs = localfs.listPaths(new Path [] {localDir});
    Searcher searcher = null;
    HScannerInterface scanner = null;
    try {
      if (indexDirs.length == 1) {
        searcher = new IndexSearcher((new File(indexDirs[0].
          toUri())).getAbsolutePath());
      } else if (indexDirs.length > 1) {
        Searchable[] searchers = new Searchable[indexDirs.length];
        for (int i = 0; i < indexDirs.length; i++) {
          searchers[i] = new IndexSearcher((new File(indexDirs[i].
            toUri()).getAbsolutePath()));
        }
        searcher = new MultiSearcher(searchers);
      } else {
        throw new IOException("no index directory found");
      }

      HTable table = new HTable(conf, new Text(TABLE_NAME));
      scanner = table.obtainScanner(columns, HConstants.EMPTY_START_ROW);

      HStoreKey key = new HStoreKey();
      TreeMap<Text, byte[]> results = new TreeMap<Text, byte[]>();

      IndexConfiguration indexConf = new IndexConfiguration();
      String content = conf.get("hbase.index.conf");
      if (content != null) {
        indexConf.addFromXML(content);
      }
      String rowkeyName = indexConf.getRowkeyName();

      int count = 0;
      while (scanner.next(key, results)) {
        String value = key.getRow().toString();
        LOG.debug("Scanned over " + key.getRow());
        Term term = new Term(rowkeyName, value);
        int hitCount = searcher.search(new TermQuery(term)).length();
        assertEquals("check row " + value, 1, hitCount);
        count++;
      }
      LOG.debug("Searcher.maxDoc: " + searcher.maxDoc());
      LOG.debug("IndexReader.numDocs: " + ((IndexSearcher)searcher).getIndexReader().numDocs());     
      int maxDoc = ((IndexSearcher)searcher).getIndexReader().numDocs();
      assertEquals("check number of rows", maxDoc, count);
    } finally {
      if (null != searcher)
        searcher.close();
      if (null != scanner)
        scanner.close();
    }
  }
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    IndexReader reader = IndexReader.open(FSDirectory.open(new File(index)), true); // only searching, so read-only=true

    if (normsField != null)
      reader = new OneNormsReader(reader, normsField);

    Searcher searcher = new IndexSearcher(reader);
    Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_CURRENT);

    BufferedReader in = null;
    if (queries != null) {
      in = new BufferedReader(new FileReader(queries));
    } else {
      in = new BufferedReader(new InputStreamReader(System.in, "UTF-8"));
    }
    QueryParser parser = new QueryParser(Version.LUCENE_CURRENT, field, analyzer);
    while (true) {
      if (queries == null)                        // prompt the user
        System.out.println("Enter query: ");

      String line = in.readLine();

      if (line == null || line.length() == -1)
        break;

      line = line.trim();
      if (line.length() == 0)
        break;
     
      Query query = parser.parse(line);
      System.out.println("Searching for: " + query.toString(field));

           
      if (repeat > 0) {                           // repeat & time as benchmark
        Date start = new Date();
        for (int i = 0; i < repeat; i++) {
          searcher.search(query, null, 100);
        }
        Date end = new Date();
        System.out.println("Time: "+(end.getTime()-start.getTime())+"ms");
      }
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    IndexReader reader = IndexReader.open(index);

    if (normsField != null)
      reader = new OneNormsReader(reader, normsField);

    Searcher searcher = new IndexSearcher(reader);
    Analyzer analyzer = new StandardAnalyzer();

    BufferedReader in = null;
    if (queries != null) {
      in = new BufferedReader(new FileReader(queries));
    } else {
      in = new BufferedReader(new InputStreamReader(System.in, "UTF-8"));
    }

    while (true) {
      if (queries == null)                        // prompt the user
        System.out.print("Query: ");

      String line = in.readLine();

      if (line == null || line.length() == -1)
        break;

      Query query = QueryParser.parse(line, field, analyzer);
      System.out.println("Searching for: " + query.toString(field));

      Hits hits = searcher.search(query);
     
      if (repeat > 0) {                           // repeat & time as benchmark
        Date start = new Date();
        for (int i = 0; i < repeat; i++) {
          hits = searcher.search(query);
        }
        Date end = new Date();
        System.out.println("Time: "+(end.getTime()-start.getTime())+"ms");
      }
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