Examples of org.apache.lucene.search.MultiSearcher

org.apache.lucene.search.MultiSearcher
apache.org/jira/browse/LUCENE-2756">LUCENE-2756).

    IndexReader reader2 = IndexReader.open(ramDir2, true);


    IndexSearcher searchers[] = new IndexSearcher[2];
    searchers[0] = new IndexSearcher(ramDir1, true);
    searchers[1] = new IndexSearcher(ramDir2, true);
    MultiSearcher multiSearcher = new MultiSearcher(searchers);
    QueryParser parser = new QueryParser(TEST_VERSION_CURRENT, FIELD_NAME, new StandardAnalyzer(TEST_VERSION_CURRENT));
    parser.setMultiTermRewriteMethod(MultiTermQuery.SCORING_BOOLEAN_QUERY_REWRITE);
    query = parser.parse("multi*");
    if (VERBOSE) System.out.println("Searching for: " + query.toString(FIELD_NAME));
    // at this point the multisearcher calls combine(query[])
    hits = multiSearcher.search(query, null, 1000);


    // query = QueryParser.parse("multi*", FIELD_NAME, new StandardAnalyzer(TEST_VERSION));
    Query expandedQueries[] = new Query[2];
    expandedQueries[0] = query.rewrite(reader1);
    expandedQueries[1] = query.rewrite(reader2);
    query = query.combine(expandedQueries);


    // create an instance of the highlighter with the tags used to surround
    // highlighted text
    Highlighter highlighter = new Highlighter(this, new QueryTermScorer(query));


    for (int i = 0; i < hits.totalHits; i++) {
      String text = multiSearcher.doc(hits.scoreDocs[i].doc).get(FIELD_NAME);
      TokenStream tokenStream = analyzer.tokenStream(FIELD_NAME, new StringReader(text));
      String highlightedText = highlighter.getBestFragment(tokenStream, text);
      if (VERBOSE) System.out.println(highlightedText);
    }
    assertTrue("Failed to find correct number of highlights " + numHighlights + " found",

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        CollectionUtils.transform( searchableList, searchableTransformer );


        Searchable searchables[] = new Searchable[searchableList.size()];
        searchableList.toArray( searchables );


        MultiSearcher searcher = null;


        try
        {
            // Create a multi-searcher for looking up the information.
            searcher = new MultiSearcher( searchables );


            // Perform the search.
            Hits hits = searcher.search( specificQuery );


            int hitCount = hits.length();


            // Now process the limits.
            results.setLimits( limits );
            results.setTotalHits( hitCount );


            int fetchCount = limits.getPageSize();
            int offset = ( limits.getSelectedPage() * limits.getPageSize() );


            if ( limits.getSelectedPage() == SearchResultLimits.ALL_PAGES )
            {
                fetchCount = hitCount;
                offset = 0;
            }


            // Goto offset.
            if ( offset < hitCount )
            {
                // only process if the offset is within the hit count.
                for ( int i = 0; i <= fetchCount; i++ )
                {
                    // Stop fetching if we are past the total # of available hits.
                    if ( offset + i >= hitCount )
                    {
                        break;
                    }


                    try
                    {
                        Document doc = hits.doc( offset + i );
                        LuceneRepositoryContentRecord record = converter.convert( doc );
                        results.addHit( record );
                    }
                    catch ( java.text.ParseException e )
                    {
                        getLogger().warn( "Unable to parse document into record: " + e.getMessage(), e );
                    }
                }
            }


        }
        catch ( IOException e )
        {
            getLogger().error( "Unable to setup multi-search: " + e.getMessage(), e );
        }
        finally
        {
            try
            {
                if ( searcher != null )
                {
                    searcher.close();
                }
            }
            catch ( IOException ie )
            {
                getLogger().error( "Unable to close index searcher: " + ie.getMessage(), ie );

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        List<Searchable> searchableList = toSearchables( indexes );


        Searchable searchables[] = new Searchable[searchableList.size()];
        searchableList.toArray( searchables );


        MultiSearcher searcher = null;


        try
        {
            // Create a multi-searcher for looking up the information.
            searcher = new MultiSearcher( searchables );


            // Perform the search.
            Hits hits = searcher.search( specificQuery );


            int hitCount = hits.length();


            // Now process the limits.
            results.setLimits( limits );
            results.setTotalHits( hitCount );


            int fetchCount = limits.getPageSize();
            int offset = ( limits.getSelectedPage() * limits.getPageSize() );


            if ( limits.getSelectedPage() == SearchResultLimits.ALL_PAGES )
            {
                fetchCount = hitCount;
                offset = 0;
            }


            // Goto offset.
            if ( offset < hitCount )
            {
                // only process if the offset is within the hit count.
                for ( int i = 0; i <= fetchCount; i++ )
                {
                    // Stop fetching if we are past the total # of available hits.
                    if ( offset + i >= hitCount )
                    {
                        break;
                    }


                    try
                    {
                        Document doc = hits.doc( offset + i );
                        LuceneRepositoryContentRecord record = converter.convert( doc );
                        results.addHit( record );
                    }
                    catch ( java.text.ParseException e )
                    {
                        getLogger().warn( "Unable to parse document into record: " + e.getMessage(), e );
                    }
                }
            }


        }
        catch ( IOException e )
        {
            getLogger().error( "Unable to setup multi-search: " + e.getMessage(), e );
        }
        finally
        {
            try
            {
                if ( searcher != null )
                {
                    searcher.close();
                }
            }
            catch ( IOException ie )
            {
                getLogger().error( "Unable to close index searcher: " + ie.getMessage(), ie );

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        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));

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        List<Searchable> searchableList = toSearchables( indexes );


        Searchable searchables[] = new Searchable[searchableList.size()];
        searchableList.toArray( searchables );


        MultiSearcher searcher = null;


        try
        {
            // Create a multi-searcher for looking up the information.
            searcher = new MultiSearcher( searchables );


            // Perform the search.
            Hits hits = null;
            if( filter != null )
            {
                hits = searcher.search( specificQuery, filter );
            }
            else
            {
                hits = searcher.search( specificQuery );
            }


            int hitCount = hits.length();


            // Now process the limits.
            results.setLimits( limits );
            results.setTotalHits( hitCount );


            int fetchCount = limits.getPageSize();
            int offset = ( limits.getSelectedPage() * limits.getPageSize() );


            if ( limits.getSelectedPage() == SearchResultLimits.ALL_PAGES )
            {
                fetchCount = hitCount;
                offset = 0;
            }


            // Goto offset.
            if ( offset < hitCount )
            {
                // only process if the offset is within the hit count.
                for ( int i = 0; i < fetchCount; i++ )
                {
                    // Stop fetching if we are past the total # of available hits.
                    if ( offset + i >= hitCount )
                    {
                        break;
                    }


                    try
                    {
                        Document doc = hits.doc( offset + i );
                        LuceneRepositoryContentRecord record = converter.convert( doc );
                        results.addHit( record );
                    }
                    catch ( java.text.ParseException e )
                    {
                        log.warn( "Unable to parse document into record: " + e.getMessage(), e );
                    }
                }
            }


        }
        catch ( IOException e )
        {
            log.error( "Unable to setup multi-search: " + e.getMessage(), e );
        }
        finally
        {
            try
            {
                if ( searcher != null )
                {
                    searcher.close();
                }
            }
            catch ( IOException ie )
            {
                log.error( "Unable to close index searcher: " + ie.getMessage(), ie );

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        List<Searchable> searchableList = toSearchables( indexes );


        Searchable searchables[] = new Searchable[searchableList.size()];
        searchableList.toArray( searchables );


        MultiSearcher searcher = null;


        try
        {
            // Create a multi-searcher for looking up the information.
            searcher = new MultiSearcher( searchables );


            // Perform the search.
            Hits hits = searcher.search( specificQuery );


            int hitCount = hits.length();


            // Now process the limits.
            results.setLimits( limits );
            results.setTotalHits( hitCount );


            int fetchCount = limits.getPageSize();
            int offset = ( limits.getSelectedPage() * limits.getPageSize() );


            if ( limits.getSelectedPage() == SearchResultLimits.ALL_PAGES )
            {
                fetchCount = hitCount;
                offset = 0;
            }


            // Goto offset.
            if ( offset < hitCount )
            {
                // only process if the offset is within the hit count.
                for ( int i = 0; i <= fetchCount; i++ )
                {
                    // Stop fetching if we are past the total # of available hits.
                    if ( offset + i >= hitCount )
                    {
                        break;
                    }


                    try
                    {
                        Document doc = hits.doc( offset + i );
                        LuceneRepositoryContentRecord record = converter.convert( doc );
                        results.addHit( record );
                    }
                    catch ( java.text.ParseException e )
                    {
                        log.error( e.getMessage() );
                    }
                }
            }


        }
        catch ( IOException e )
        {
            log.error( e.getMessage() );
        }
        finally
        {
            try
            {
                if ( searcher != null )
                {
                    searcher.close();
                }
            }
            catch ( IOException ie )
            {
                log.error( ie.getMessage() );

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        Searchable[] searchers = new Searchable[indexDirs.length];
        for (int i = 0; i < indexDirs.length; i++) {
          searchers[i] = new IndexSearcher((new File(indexDirs[i].getPath().
            toUri()).getAbsolutePath()));
        }
        searcher = new MultiSearcher(searchers);
      } else {
        throw new IOException("no index directory found");
      }


      HTable table = new HTable(conf, TABLE_NAME);

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        searchableList.toArray( searchables );


        try
        {
            // Create a multi-searcher for looking up the information.
            MultiSearcher searcher = new MultiSearcher( searchables );


            // Perform the search.
            Hits hits = searcher.search( specificQuery );


            int hitCount = hits.length();


            // Now process the limits.
            results.setLimits( limits );

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        searchableList.toArray( searchables );


        try
        {
            // Create a multi-searcher for looking up the information.
            MultiSearcher searcher = new MultiSearcher( searchables );


            // Perform the search.
            Hits hits = searcher.search( specificQuery );


            int hitCount = hits.length();


            // Now process the limits.
            results.setLimits( limits );

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        CollectionUtils.transform( searchableList, searchableTransformer );


        Searchable searchables[] = new Searchable[searchableList.size()];
        searchableList.toArray( searchables );


        MultiSearcher searcher = null;


        try
        {
            // Create a multi-searcher for looking up the information.
            searcher = new MultiSearcher( searchables );


            // Perform the search.
            Hits hits = searcher.search( specificQuery );


            int hitCount = hits.length();


            // Now process the limits.
            results.setLimits( limits );
            results.setTotalHits( hitCount );


            int fetchCount = limits.getPageSize();
            int offset = ( limits.getSelectedPage() * limits.getPageSize() );


            if ( limits.getSelectedPage() == SearchResultLimits.ALL_PAGES )
            {
                fetchCount = hitCount;
                offset = 0;
            }


            // Goto offset.
            if ( offset < hitCount )
            {
                // only process if the offset is within the hit count.
                for ( int i = 0; i <= fetchCount; i++ )
                {
                    // Stop fetching if we are past the total # of available hits.
                    if ( offset + i >= hitCount )
                    {
                        break;
                    }


                    try
                    {
                        Document doc = hits.doc( offset + i );
                        LuceneRepositoryContentRecord record = converter.convert( doc );
                        results.addHit( record );
                    }
                    catch ( java.text.ParseException e )
                    {
                        getLogger().warn( "Unable to parse document into record: " + e.getMessage(), e );
                    }
                }
            }


        }
        catch ( IOException e )
        {
            getLogger().error( "Unable to setup multi-search: " + e.getMessage(), e );
        }
        finally
        {
            try
            {
                if ( searcher != null )
                {
                    searcher.close();
                }
            }
            catch ( IOException ie )
            {
                getLogger().error( "Unable to close index searcher: " + ie.getMessage(), ie );

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