Java TaxonomyReader.close方法代码示例

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User runs a query and counts facets. */
private List<FacetResult> facetsWithSearch() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

  FacetsCollector fc = new FacetsCollector();

  // MatchAllDocsQuery is for "browsing" (counts facets
  // for all non-deleted docs in the index); normally
  // you'd use a "normal" query:
  FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);

  // Retrieve results
  List<FacetResult> results = new ArrayList<FacetResult>();

  // Count both "Publish Date" and "Author" dimensions
  Facets facets = new FastTaxonomyFacetCounts(taxoReader, config, fc);
  results.add(facets.getTopChildren(10, "Author"));
  results.add(facets.getTopChildren(10, "Publish Date"));
  
  indexReader.close();
  taxoReader.close();
  
  return results;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User drills down on 'Publish Date/2010', and we
 *  return facets for 'Author' */
private FacetResult drillDown() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

  // Passing no baseQuery means we drill down on all
  // documents ("browse only"):
  DrillDownQuery q = new DrillDownQuery(config);

  // Now user drills down on Publish Date/2010:
  q.add("Publish Date", "2010");
  FacetsCollector fc = new FacetsCollector();
  FacetsCollector.search(searcher, q, 10, fc);

  // Retrieve results
  Facets facets = new FastTaxonomyFacetCounts(taxoReader, config, fc);
  FacetResult result = facets.getTopChildren(10, "Author");

  indexReader.close();
  taxoReader.close();
  
  return result;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User drills down on 'Publish Date/2010', and we
 *  return facets for both 'Publish Date' and 'Author',
 *  using DrillSideways. */
private List<FacetResult> drillSideways() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

  // Passing no baseQuery means we drill down on all
  // documents ("browse only"):
  DrillDownQuery q = new DrillDownQuery(config);

  // Now user drills down on Publish Date/2010:
  q.add("Publish Date", "2010");

  DrillSideways ds = new DrillSideways(searcher, config, taxoReader);
  DrillSidewaysResult result = ds.search(q, 10);

  // Retrieve results
  List<FacetResult> facets = result.facets.getAllDims(10);

  indexReader.close();
  taxoReader.close();
  
  return facets;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User runs a query and aggregates facets by summing their association values. */
private List<FacetResult> sumAssociations() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);
  
  FacetsCollector fc = new FacetsCollector();
  
  // MatchAllDocsQuery is for "browsing" (counts facets
  // for all non-deleted docs in the index); normally
  // you'd use a "normal" query:
  FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);
  
  Facets tags = new TaxonomyFacetSumIntAssociations("$tags", taxoReader, config, fc);
  Facets genre = new TaxonomyFacetSumFloatAssociations("$genre", taxoReader, config, fc);

  // Retrieve results
  List<FacetResult> results = new ArrayList<FacetResult>();
  results.add(tags.getTopChildren(10, "tags"));
  results.add(genre.getTopChildren(10, "genre"));

  indexReader.close();
  taxoReader.close();
  
  return results;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User drills down on 'tags/solr'. */
private FacetResult drillDown() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

  // Passing no baseQuery means we drill down on all
  // documents ("browse only"):
  DrillDownQuery q = new DrillDownQuery(config);

  // Now user drills down on Publish Date/2010:
  q.add("tags", "solr");
  FacetsCollector fc = new FacetsCollector();
  FacetsCollector.search(searcher, q, 10, fc);

  // Retrieve results
  Facets facets = new TaxonomyFacetSumFloatAssociations("$genre", taxoReader, config, fc);
  FacetResult result = facets.getTopChildren(10, "genre");

  indexReader.close();
  taxoReader.close();
  
  return result;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User runs a query and counts facets. */
private List<FacetResult> facetsWithSearch() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

  FacetsCollector fc = new FacetsCollector();

  // MatchAllDocsQuery is for "browsing" (counts facets
  // for all non-deleted docs in the index); normally
  // you'd use a "normal" query:
  FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);

  // Retrieve results
  List<FacetResult> results = new ArrayList<>();

  // Count both "Publish Date" and "Author" dimensions
  Facets facets = new FastTaxonomyFacetCounts(taxoReader, config, fc);
  results.add(facets.getTopChildren(10, "Author"));
  results.add(facets.getTopChildren(10, "Publish Date"));
  
  indexReader.close();
  taxoReader.close();
  
  return results;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User runs a query and aggregates facets by summing their association values. */
private List<FacetResult> sumAssociations() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);
  
  FacetsCollector fc = new FacetsCollector();
  
  // MatchAllDocsQuery is for "browsing" (counts facets
  // for all non-deleted docs in the index); normally
  // you'd use a "normal" query:
  FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);
  
  Facets tags = new TaxonomyFacetSumIntAssociations("$tags", taxoReader, config, fc);
  Facets genre = new TaxonomyFacetSumFloatAssociations("$genre", taxoReader, config, fc);

  // Retrieve results
  List<FacetResult> results = new ArrayList<>();
  results.add(tags.getTopChildren(10, "tags"));
  results.add(genre.getTopChildren(10, "genre"));

  indexReader.close();
  taxoReader.close();
  
  return results;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
@Test
public void testOpenIfChangedAndRefCount() throws Exception {
  Directory dir = new RAMDirectory(); // no need for random directories here

  DirectoryTaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(dir);
  taxoWriter.addCategory(new FacetLabel("a"));
  taxoWriter.commit();

  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(dir);
  assertEquals("wrong refCount", 1, taxoReader.getRefCount());

  taxoReader.incRef();
  assertEquals("wrong refCount", 2, taxoReader.getRefCount());

  taxoWriter.addCategory(new FacetLabel("a", "b"));
  taxoWriter.commit();
  TaxonomyReader newtr = TaxonomyReader.openIfChanged(taxoReader);
  assertNotNull(newtr);
  taxoReader.close();
  taxoReader = newtr;
  assertEquals("wrong refCount", 1, taxoReader.getRefCount());

  taxoWriter.close();
  taxoReader.close();
  dir.close();
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User runs a query and counts facets. */
private List<FacetResult> facetsWithSearch() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

    FacetsCollector fc = new FacetsCollector();

    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query:
    FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);

    // Retrieve results
    List<FacetResult> results = new ArrayList<FacetResult>();

    // Count both "Publish Date" and "Author" dimensions
    Facets facets = new FastTaxonomyFacetCounts(taxoReader, config, fc);
    results.add(facets.getTopChildren(10, "Author"));
    results.add(facets.getTopChildren(10, "Publish Date"));

    indexReader.close();
    taxoReader.close();

    return results;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User drills down on 'Publish Date/2010', and we
 *  return facets for 'Author' */
private FacetResult drillDown() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(config);

    // Now user drills down on Publish Date/2010:
    q.add("Publish Date", "2010");
    FacetsCollector fc = new FacetsCollector();
    FacetsCollector.search(searcher, q, 10, fc);

    // Retrieve results
    Facets facets = new FastTaxonomyFacetCounts(taxoReader, config, fc);
    FacetResult result = facets.getTopChildren(10, "Author");

    indexReader.close();
    taxoReader.close();

    return result;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User drills down on 'Publish Date/2010', and we
 *  return facets for both 'Publish Date' and 'Author',
 *  using DrillSideways. */
private List<FacetResult> drillSideways() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(config);

    // Now user drills down on Publish Date/2010:
    q.add("Publish Date", "2010");

    DrillSideways ds = new DrillSideways(searcher, config, taxoReader);
    DrillSidewaysResult result = ds.search(q, 10);

    // Retrieve results

    List<FacetResult> facets = result.facets.getAllDims(10);

    indexReader.close();
    taxoReader.close();

    return facets;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User drills down on 'Publish date/2010'. */
private List<FacetResult> drillDown() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

  // Now user drills down on Publish Date/2010:
  FacetSearchParams fsp = new FacetSearchParams(new CountFacetRequest(new CategoryPath("Author"), 10));
  DrillDownQuery q = new DrillDownQuery(fsp.indexingParams, new MatchAllDocsQuery());
  q.add(new CategoryPath("Publish Date/2010", '/'));
  FacetsCollector fc = FacetsCollector.create(fsp, searcher.getIndexReader(), taxoReader);
  searcher.search(q, fc);

  // Retrieve results
  List<FacetResult> facetResults = fc.getFacetResults();
  
  indexReader.close();
  taxoReader.close();
  
  return facetResults;
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
public static void main(String[] args) throws IOException {
  boolean printTree = false;
  String path = null;
  for(int i=0;i<args.length;i++) {
    if (args[i].equals("-printTree")) {
      printTree = true;
    } else {
      path = args[i];
    }
  }
  if (args.length != (printTree ? 2 : 1)) {
    System.out.println("\nUsage: java -classpath ... org.apache.lucene.facet.util.PrintTaxonomyStats [-printTree] /path/to/taxononmy/index\n");
    System.exit(1);
  }
  Directory dir = FSDirectory.open(new File(path));
  TaxonomyReader r = new DirectoryTaxonomyReader(dir);
  printStats(r, System.out, printTree);
  r.close();
  dir.close();
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
@Test
public void testOpenIfChangedAndRefCount() throws Exception {
  Directory dir = new RAMDirectory(); // no need for random directories here

  DirectoryTaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(dir);
  taxoWriter.addCategory(new CategoryPath("a"));
  taxoWriter.commit();

  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(dir);
  assertEquals("wrong refCount", 1, taxoReader.getRefCount());

  taxoReader.incRef();
  assertEquals("wrong refCount", 2, taxoReader.getRefCount());

  taxoWriter.addCategory(new CategoryPath("a", "b"));
  taxoWriter.commit();
  TaxonomyReader newtr = TaxonomyReader.openIfChanged(taxoReader);
  assertNotNull(newtr);
  taxoReader.close();
  taxoReader = newtr;
  assertEquals("wrong refCount", 1, taxoReader.getRefCount());

  taxoWriter.close();
  taxoReader.close();
  dir.close();
}
 

import org.apache.lucene.facet.taxonomy.TaxonomyReader; //导入方法依赖的package包/类
/** User runs a query and counts facets. */
private List<FacetResult> search() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

  FacetsCollector fc = new FacetsCollector();

  // MatchAllDocsQuery is for "browsing" (counts facets
  // for all non-deleted docs in the index); normally
  // you'd use a "normal" query:
  FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);

  // Retrieve results
  List<FacetResult> results = new ArrayList<FacetResult>();

  // Count both "Publish Date" and "Author" dimensions
  Facets author = new FastTaxonomyFacetCounts("author", taxoReader, config, fc);
  results.add(author.getTopChildren(10, "Author"));

  Facets pubDate = new FastTaxonomyFacetCounts("pubdate", taxoReader, config, fc);
  results.add(pubDate.getTopChildren(10, "Publish Date"));
  
  indexReader.close();
  taxoReader.close();
  
  return results;
}