Examples of org.apache.lucene.facet.index.CategoryDocumentBuilder

org.apache.lucene.facet.index.CategoryDocumentBuilder
A utility class which allows attachment of {@link CategoryPath}s or {@link CategoryAttribute}s to a given document using a taxonomy.
Construction could be done with either a given {@link FacetIndexingParams} orthe default implementation {@link DefaultFacetIndexingParams}.
A CategoryDocumentBuilder can be reused by repeatedly setting the categories and building the document. Categories are provided either as {@link CategoryAttribute} elements through {@link #setCategories(Iterable)}, or as {@link CategoryPath} elements through{@link #setCategoryPaths(Iterable)}.
Note that both {@link #setCategories(Iterable)} and{@link #setCategoryPaths(Iterable)} return this{@link CategoryDocumentBuilder}, allowing the following pattern: {@code newCategoryDocumentBuilder(taxonomy, params).setCategories(categories).build(doc)}. @lucene.experimental

      // obtain the sample facets for current document
      List<CategoryPath> facetList = SimpleUtils.categoryPathArrayToList(SimpleUtils.categories[docNum]);


      // we do not alter indexing parameters!  
      // a category document builder will add the categories to a document once build() is called
      CategoryDocumentBuilder categoryDocBuilder = new CategoryDocumentBuilder(taxo).setCategoryPaths(facetList);


      // create a plain Lucene document and add some regular Lucene fields to it 
      Document doc = new Document();
      doc.add(new Field(SimpleUtils.TITLE, SimpleUtils.docTitles[docNum], Store.YES, Index.ANALYZED));
      doc.add(new Field(SimpleUtils.TEXT, SimpleUtils.docTexts[docNum], Store.NO, Index.ANALYZED));


      // invoke the category document builder for adding categories to the document and,
      // as required, to the taxonomy index 
      categoryDocBuilder.build(doc);


      // finally add the document to the index
      iw.addDocument(doc);


      nDocsAdded ++;

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      List<CategoryPath> facetList = SimpleUtils.categoryPathArrayToList(cPaths[docNum]);


      // we do not alter indexing parameters!
      // a category document builder will add the categories to a document
      // once build() is called
      CategoryDocumentBuilder categoryDocBuilder = new CategoryDocumentBuilder(
          taxo, iParams).setCategoryPaths(facetList);


      // create a plain Lucene document and add some regular Lucene fields
      // to it
      Document doc = new Document();
      doc.add(new Field(SimpleUtils.TITLE, docTitles[docNum], Store.YES, Index.ANALYZED));
      doc.add(new Field(SimpleUtils.TEXT, docTexts[docNum], Store.NO, Index.ANALYZED));


      // finally add the document to the index
      categoryDocBuilder.build(doc);
      iw.addDocument(doc);
      
      nDocsAdded++;
      nFacetsAdded += facetList.size();
    }

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      }


      // we do not alter indexing parameters!
      // a category document builder will add the categories to a document
      // once build() is called
      CategoryDocumentBuilder categoryDocBuilder = new EnhancementsDocumentBuilder(
          taxo, AssociationUtils.assocIndexingParams);
      categoryDocBuilder.setCategories(categoryContainer);


      // create a plain Lucene document and add some regular Lucene fields
      // to it
      Document doc = new Document();
      doc.add(new Field(SimpleUtils.TITLE, SimpleUtils.docTitles[docNum],
          Store.YES, Index.ANALYZED));
      doc.add(new Field(SimpleUtils.TEXT, SimpleUtils.docTexts[docNum],
          Store.NO, Index.ANALYZED));


      // invoke the category document builder for adding categories to the
      // document and,
      // as required, to the taxonomy index
      categoryDocBuilder.build(doc);


      // finally add the document to the index
      iw.addDocument(doc);


      nDocsAdded++;

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      CorruptIndexException {
    ArrayList<CategoryPath> cps = new ArrayList<CategoryPath>();
    CategoryPath cp = new CategoryPath(strings);
    cps.add(cp);
    Document d = new Document();
    new CategoryDocumentBuilder(tw, iParams).setCategoryPaths(cps).build(d);
    d.add(new Field("content", "alpha", Store.YES, Index.ANALYZED,
        TermVector.NO));
    iw.addDocument(d);
  }

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    TaxonomyWriter taxonomyWriter = new DirectoryTaxonomyWriter(taxoDir);
    IndexWriter iw = new IndexWriter(indexDir, new IndexWriterConfig(
        TEST_VERSION_CURRENT, new KeywordAnalyzer()));


    CategoryDocumentBuilder cdb = new CategoryDocumentBuilder(taxonomyWriter);
    Iterable<CategoryPath> cats = Arrays.asList(new CategoryPath("a"));
    for(int i = atLeast(2000); i > 0; --i) {
      Document doc = new Document();
      doc.add(new Field("f", "v", Store.NO, Index.NOT_ANALYZED_NO_NORMS));
      cdb.setCategoryPaths(cats);
      iw.addDocument(cdb.build(doc));
    }
    
    taxonomyWriter.close();
    iw.close();

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      throws CorruptIndexException, LockObtainFailedException, IOException {
    IndexWriterConfig iwc = newIndexWriterConfig(TEST_VERSION_CURRENT, new KeywordAnalyzer());
    IndexWriter w = new IndexWriter(indexDir, iwc);
    TaxonomyWriter tw = new DirectoryTaxonomyWriter(taxoDir);
    
    CategoryDocumentBuilder cdb = new CategoryDocumentBuilder(tw);
    ArrayList<CategoryPath> categoryPaths = new ArrayList<CategoryPath>(1);
    
    for (int i = 0; i < 100; i++) {
      categoryPaths.clear();
      categoryPaths.add(new CategoryPath("root",Integer.toString(i / 10), Integer.toString(i)));
      cdb.setCategoryPaths(categoryPaths);
      w.addDocument(cdb.build(new Document()));
    }
    IOUtils.close(tw, w);
  }

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      // obtain the sample facets for current document
      List<CategoryPath> facetList = Arrays.asList(SimpleUtils.categories[docNum]);


      // we do not alter indexing parameters!  
      // a category document builder will add the categories to a document once build() is called
      CategoryDocumentBuilder categoryDocBuilder = new CategoryDocumentBuilder(taxo).setCategoryPaths(facetList);


      // create a plain Lucene document and add some regular Lucene fields to it 
      Document doc = new Document();
      doc.add(new TextField(SimpleUtils.TITLE, SimpleUtils.docTitles[docNum], Field.Store.YES));
      doc.add(new TextField(SimpleUtils.TEXT, SimpleUtils.docTexts[docNum], Field.Store.NO));


      // invoke the category document builder for adding categories to the document and,
      // as required, to the taxonomy index 
      categoryDocBuilder.build(doc);


      // finally add the document to the index
      iw.addDocument(doc);


      nDocsAdded ++;

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      List<CategoryPath> facetList = Arrays.asList(cPaths[docNum]);


      // we do not alter indexing parameters!
      // a category document builder will add the categories to a document
      // once build() is called
      CategoryDocumentBuilder categoryDocBuilder = new CategoryDocumentBuilder(
          taxo, iParams).setCategoryPaths(facetList);


      // create a plain Lucene document and add some regular Lucene fields
      // to it
      Document doc = new Document();
      doc.add(new TextField(SimpleUtils.TITLE, docTitles[docNum], Field.Store.YES));
      doc.add(new TextField(SimpleUtils.TEXT, docTexts[docNum], Field.Store.NO));


      // finally add the document to the index
      categoryDocBuilder.build(doc);
      iw.addDocument(doc);
      
      nDocsAdded++;
      nFacetsAdded += facetList.size();
    }

View Full Code Here

      }


      // we do not alter indexing parameters!
      // a category document builder will add the categories to a document
      // once build() is called
      CategoryDocumentBuilder categoryDocBuilder = new EnhancementsDocumentBuilder(
          taxo, AssociationUtils.assocIndexingParams);
      categoryDocBuilder.setCategories(categoryContainer);


      // create a plain Lucene document and add some regular Lucene fields
      // to it
      Document doc = new Document();
      doc.add(new TextField(SimpleUtils.TITLE, SimpleUtils.docTitles[docNum], Field.Store.YES));
      doc.add(new TextField(SimpleUtils.TEXT, SimpleUtils.docTexts[docNum], Field.Store.NO));


      // invoke the category document builder for adding categories to the
      // document and,
      // as required, to the taxonomy index
      categoryDocBuilder.build(doc);


      // finally add the document to the index
      iw.addDocument(doc);


      nDocsAdded++;

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  /** utility Create a dummy document with specified categories and content */
  protected final void indexDoc(FacetIndexingParams iParams, RandomIndexWriter iw,
      TaxonomyWriter tw, String content, List<CategoryPath> categories) throws IOException,
      CorruptIndexException {
    Document d = new Document();
    CategoryDocumentBuilder builder = new CategoryDocumentBuilder(tw, iParams);
    builder.setCategoryPaths(categories);
    builder.build(d);
    d.add(new Field("content", content, Store.YES, Index.ANALYZED, TermVector.NO));
    iw.addDocument(d);
  }

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