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TestTermVectorsReader.javaAPI DocApache Lucene 2.2.07815Sat Jun 16 22:20:28 BST 2007org.apache.lucene.index

TestTermVectorsReader

public class TestTermVectorsReader extends TestCase
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You 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 TermVectorsWriter
writer
private String[]
testFields
private boolean[]
testFieldsStorePos
private boolean[]
testFieldsStoreOff
private String[]
testTerms
private int[]
positions
private TermVectorOffsetInfo[]
offsets
private RAMDirectory
dir
private String
seg
private FieldInfos
fieldInfos
Constructors Summary
public TestTermVectorsReader(String s)


     
    super(s);
Methods Summary
protected voidsetUp()

    for (int i = 0; i < testFields.length; i++) {
      fieldInfos.add(testFields[i], true, true, testFieldsStorePos[i], testFieldsStoreOff[i]);
    }
    
    for (int i = 0; i < testTerms.length; i++)
    {
      positions[i] = new int[3];
      for (int j = 0; j < positions[i].length; j++) {
        // poditions are always sorted in increasing order
        positions[i][j] = (int)(j * 10 + Math.random() * 10);
      }
      offsets[i] = new TermVectorOffsetInfo[3];
      for (int j = 0; j < offsets[i].length; j++){
        // ofsets are alway sorted in increasing order
        offsets[i][j] = new TermVectorOffsetInfo(j * 10, j * 10 + testTerms[i].length());
      }        
    }
    Arrays.sort(testTerms);
    for (int j = 0; j < 5; j++) {
      writer = new TermVectorsWriter(dir, seg, fieldInfos);
      writer.openDocument();

      for (int k = 0; k < testFields.length; k++) {
        writer.openField(testFields[k]);
        for (int i = 0; i < testTerms.length; i++) {
          writer.addTerm(testTerms[i], 3, positions[i], offsets[i]);      
        }
        writer.closeField();
      }
      writer.closeDocument();
      writer.close();
    }
protected voidtearDown()
public voidtest()

      //Check to see the files were created properly in setup
      assertTrue(writer.isDocumentOpen() == false);          
      assertTrue(dir.fileExists(seg + TermVectorsWriter.TVD_EXTENSION));
      assertTrue(dir.fileExists(seg + TermVectorsWriter.TVX_EXTENSION));
public voidtestBadParams()
Make sure exceptions and bad params are handled appropriately

    try {
      TermVectorsReader reader = new TermVectorsReader(dir, seg, fieldInfos);
      assertTrue(reader != null);
      //Bad document number, good field number
      reader.get(50, testFields[0]);
      fail();      
    } catch (IOException e) {
      // expected exception
    }
    try {
      TermVectorsReader reader = new TermVectorsReader(dir, seg, fieldInfos);
      assertTrue(reader != null);
      //Bad document number, no field
      reader.get(50);
      fail();      
    } catch (IOException e) {
      // expected exception
    }
    try {
      TermVectorsReader reader = new TermVectorsReader(dir, seg, fieldInfos);
      assertTrue(reader != null);
      //good document number, bad field number
      TermFreqVector vector = reader.get(0, "f50");
      assertTrue(vector == null);      
    } catch (IOException e) {
      fail();
    }
public voidtestOffsetReader()

    TermVectorsReader reader = new TermVectorsReader(dir, seg, fieldInfos);
    assertTrue(reader != null);
    TermPositionVector vector = (TermPositionVector)reader.get(0, testFields[0]);
    assertTrue(vector != null);
    String [] terms = vector.getTerms();
    assertTrue(terms != null);
    assertTrue(terms.length == testTerms.length);
    for (int i = 0; i < terms.length; i++) {
      String term = terms[i];
      //System.out.println("Term: " + term);
      assertTrue(term.equals(testTerms[i]));
      int [] positions = vector.getTermPositions(i);
      assertTrue(positions != null);
      assertTrue(positions.length == this.positions[i].length);
      for (int j = 0; j < positions.length; j++) {
        int position = positions[j];
        assertTrue(position == this.positions[i][j]);
      }
      TermVectorOffsetInfo [] offset = vector.getOffsets(i);
      assertTrue(offset != null);
      assertTrue(offset.length == this.offsets[i].length);
      for (int j = 0; j < offset.length; j++) {
        TermVectorOffsetInfo termVectorOffsetInfo = offset[j];
        assertTrue(termVectorOffsetInfo.equals(offsets[i][j]));
      }
    }
public voidtestPositionReader()

    TermVectorsReader reader = new TermVectorsReader(dir, seg, fieldInfos);
    assertTrue(reader != null);
    TermPositionVector vector;
    String [] terms;
    vector = (TermPositionVector)reader.get(0, testFields[0]);
    assertTrue(vector != null);      
    terms = vector.getTerms();
    assertTrue(terms != null);
    assertTrue(terms.length == testTerms.length);
    for (int i = 0; i < terms.length; i++) {
      String term = terms[i];
      //System.out.println("Term: " + term);
      assertTrue(term.equals(testTerms[i]));
      int [] positions = vector.getTermPositions(i);
      assertTrue(positions != null);
      assertTrue(positions.length == this.positions[i].length);
      for (int j = 0; j < positions.length; j++) {
        int position = positions[j];
        assertTrue(position == this.positions[i][j]);
      }
      TermVectorOffsetInfo [] offset = vector.getOffsets(i);
      assertTrue(offset != null);
      assertTrue(offset.length == this.offsets[i].length);
      for (int j = 0; j < offset.length; j++) {
        TermVectorOffsetInfo termVectorOffsetInfo = offset[j];
        assertTrue(termVectorOffsetInfo.equals(offsets[i][j]));
      }
    }
    
    TermFreqVector freqVector = reader.get(0, testFields[1]); //no pos, no offset
    assertTrue(freqVector != null);      
    assertTrue(freqVector instanceof TermPositionVector == false);
    terms = freqVector.getTerms();
    assertTrue(terms != null);
    assertTrue(terms.length == testTerms.length);
    for (int i = 0; i < terms.length; i++) {
      String term = terms[i];
      //System.out.println("Term: " + term);
      assertTrue(term.equals(testTerms[i]));        
    }
public voidtestReader()

    TermVectorsReader reader = new TermVectorsReader(dir, seg, fieldInfos);
    assertTrue(reader != null);
    TermFreqVector vector = reader.get(0, testFields[0]);
    assertTrue(vector != null);
    String [] terms = vector.getTerms();
    assertTrue(terms != null);
    assertTrue(terms.length == testTerms.length);
    for (int i = 0; i < terms.length; i++) {
      String term = terms[i];
      //System.out.println("Term: " + term);
      assertTrue(term.equals(testTerms[i]));
    }