FileDocCategorySizeDatePackage
TestParallelReader.javaAPI DocApache Lucene 1.96499Mon Feb 20 09:19:36 GMT 2006org.apache.lucene.index

TestParallelReader

public class TestParallelReader extends TestCase
Copyright 2005 The Apache Software Foundation Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Fields Summary
private Searcher
parallel
private Searcher
single
Constructors Summary
Methods Summary
private org.apache.lucene.store.DirectorygetDir1()

    Directory dir1 = new RAMDirectory();
    IndexWriter w1 = new IndexWriter(dir1, new StandardAnalyzer(), true);
    Document d1 = new Document();
    d1.add(new Field("f1", "v1", Field.Store.YES, Field.Index.TOKENIZED));
    d1.add(new Field("f2", "v1", Field.Store.YES, Field.Index.TOKENIZED));
    w1.addDocument(d1);
    Document d2 = new Document();
    d2.add(new Field("f1", "v2", Field.Store.YES, Field.Index.TOKENIZED));
    d2.add(new Field("f2", "v2", Field.Store.YES, Field.Index.TOKENIZED));
    w1.addDocument(d2);
    w1.close();
    return dir1;
private org.apache.lucene.store.DirectorygetDir2()

    Directory dir2 = new RAMDirectory();
    IndexWriter w2 = new IndexWriter(dir2, new StandardAnalyzer(), true);
    Document d3 = new Document();
    d3.add(new Field("f3", "v1", Field.Store.YES, Field.Index.TOKENIZED));
    d3.add(new Field("f4", "v1", Field.Store.YES, Field.Index.TOKENIZED));
    w2.addDocument(d3);
    Document d4 = new Document();
    d4.add(new Field("f3", "v2", Field.Store.YES, Field.Index.TOKENIZED));
    d4.add(new Field("f4", "v2", Field.Store.YES, Field.Index.TOKENIZED));
    w2.addDocument(d4);
    w2.close();
    return dir2;
private org.apache.lucene.search.Searcherparallel()

    Directory dir1 = getDir1();
    Directory dir2 = getDir2();
    ParallelReader pr = new ParallelReader();
    pr.add(IndexReader.open(dir1));
    pr.add(IndexReader.open(dir2));
    return new IndexSearcher(pr);
private voidqueryTest(org.apache.lucene.search.Query query)

    Hits parallelHits = parallel.search(query);
    Hits singleHits = single.search(query);
    assertEquals(parallelHits.length(), singleHits.length());
    for(int i = 0; i < parallelHits.length(); i++) {
      assertEquals(parallelHits.score(i), singleHits.score(i), 0.001f);
      Document docParallel = parallelHits.doc(i);
      Document docSingle = singleHits.doc(i);
      assertEquals(docParallel.get("f1"), docSingle.get("f1"));
      assertEquals(docParallel.get("f2"), docSingle.get("f2"));
      assertEquals(docParallel.get("f3"), docSingle.get("f3"));
      assertEquals(docParallel.get("f4"), docSingle.get("f4"));
    }
protected voidsetUp()

    single = single();
    parallel = parallel();
private org.apache.lucene.search.Searchersingle()

    Directory dir = new RAMDirectory();
    IndexWriter w = new IndexWriter(dir, new StandardAnalyzer(), true);
    Document d1 = new Document();
    d1.add(new Field("f1", "v1", Field.Store.YES, Field.Index.TOKENIZED));
    d1.add(new Field("f2", "v1", Field.Store.YES, Field.Index.TOKENIZED));
    d1.add(new Field("f3", "v1", Field.Store.YES, Field.Index.TOKENIZED));
    d1.add(new Field("f4", "v1", Field.Store.YES, Field.Index.TOKENIZED));
    w.addDocument(d1);
    Document d2 = new Document();
    d2.add(new Field("f1", "v2", Field.Store.YES, Field.Index.TOKENIZED));
    d2.add(new Field("f2", "v2", Field.Store.YES, Field.Index.TOKENIZED));
    d2.add(new Field("f3", "v2", Field.Store.YES, Field.Index.TOKENIZED));
    d2.add(new Field("f4", "v2", Field.Store.YES, Field.Index.TOKENIZED));
    w.addDocument(d2);
    w.close();

    return new IndexSearcher(dir);
public voidtestFieldNames()

    Directory dir1 = getDir1();
    Directory dir2 = getDir2();
    ParallelReader pr = new ParallelReader();
    pr.add(IndexReader.open(dir1));
    pr.add(IndexReader.open(dir2));
    Collection fieldNames = pr.getFieldNames(IndexReader.FieldOption.ALL);
    assertEquals(4, fieldNames.size());
    assertTrue(fieldNames.contains("f1"));
    assertTrue(fieldNames.contains("f2"));
    assertTrue(fieldNames.contains("f3"));
    assertTrue(fieldNames.contains("f4"));
public voidtestIncompatibleIndexes()

    // two documents:
    Directory dir1 = getDir1();

    // one document only:
    Directory dir2 = new RAMDirectory();
    IndexWriter w2 = new IndexWriter(dir2, new StandardAnalyzer(), true);
    Document d3 = new Document();
    d3.add(new Field("f3", "v1", Field.Store.YES, Field.Index.TOKENIZED));
    w2.addDocument(d3);
    w2.close();
    
    ParallelReader pr = new ParallelReader();
    pr.add(IndexReader.open(dir1));
    try {
      pr.add(IndexReader.open(dir2));
      fail("didn't get exptected exception: indexes don't have same number of documents");
    } catch (IllegalArgumentException e) {
      // expected exception
    }
public voidtestQueries()

    queryTest(new TermQuery(new Term("f1", "v1")));
    queryTest(new TermQuery(new Term("f1", "v2")));
    queryTest(new TermQuery(new Term("f2", "v1")));
    queryTest(new TermQuery(new Term("f2", "v2")));
    queryTest(new TermQuery(new Term("f3", "v1")));
    queryTest(new TermQuery(new Term("f3", "v2")));
    queryTest(new TermQuery(new Term("f4", "v1")));
    queryTest(new TermQuery(new Term("f4", "v2")));

    BooleanQuery bq1 = new BooleanQuery();
    bq1.add(new TermQuery(new Term("f1", "v1")), Occur.MUST);
    bq1.add(new TermQuery(new Term("f4", "v1")), Occur.MUST);
    queryTest(bq1);