package org.apache.lucene.facet.enhancements;
import java.io.IOException;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.Term;
import org.apache.lucene.store.Directory;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.facet.enhancements.EnhancementsPayloadIterator;
import org.apache.lucene.facet.enhancements.association.AssociationEnhancement;
import org.apache.lucene.facet.enhancements.params.EnhancementsIndexingParams;
import org.apache.lucene.facet.example.association.AssociationIndexer;
import org.apache.lucene.facet.example.association.AssociationUtils;
import org.apache.lucene.facet.search.DrillDown;
import org.apache.lucene.facet.taxonomy.CategoryPath;
/*
* 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.
*/
public class EnhancementsPayloadIteratorTest extends LuceneTestCase {
private static Directory indexDir;
private static Directory taxoDir;
private static EnhancementsIndexingParams indexingParams;
private static AssociationEnhancement associationEnhancement;
@BeforeClass
public static void buildAssociationIndex() throws Exception {
// create Directories for the search index and for the taxonomy index
indexDir = newDirectory();
taxoDir = newDirectory();
// index the sample documents
if (VERBOSE) {
System.out.println("index the sample documents...");
}
AssociationIndexer.index(indexDir, taxoDir);
indexingParams = AssociationUtils.assocIndexingParams;
associationEnhancement = (AssociationEnhancement) indexingParams
.getCategoryEnhancements().get(0);
}
@Test
public void testFullIterator() throws IOException {
IndexReader indexReader = DirectoryReader.open(indexDir);
Term term = DrillDown.term(indexingParams, new CategoryPath("tags", "lucene"));
EnhancementsPayloadIterator iterator = new EnhancementsPayloadIterator(
indexingParams.getCategoryEnhancements(), indexReader, term);
assertTrue("Unexpected failure of init()", iterator.init());
assertTrue("Missing instance of tags/lucene in doc 0", iterator.setdoc(0));
int assoc = (Integer) iterator.getCategoryData(associationEnhancement);
assertEquals("Unexpected association value for tags/lucene in doc 0", 3, assoc, 1E-5);
assertTrue("Missing instance of tags/lucene in doc 1", iterator.setdoc(1));
assoc = (Integer) iterator.getCategoryData(associationEnhancement);
assertEquals("Unexpected association value for tags/lucene in doc 1", 1, assoc, 1E-5);
indexReader.close();
}
@Test
public void testEmptyIterator() throws IOException {
IndexReader indexReader = DirectoryReader.open(indexDir);
Term term = DrillDown.term(indexingParams, new CategoryPath("root","a", "f2"));
EnhancementsPayloadIterator iterator = new EnhancementsPayloadIterator(
indexingParams.getCategoryEnhancements(), indexReader, term);
assertTrue("Unexpected failure of init()", iterator.init());
assertFalse("Unexpected payload for root/a/f2 in doc 0", iterator.setdoc(0));
assertFalse("Unexpected instance of root/a/f2 in doc 1", iterator.setdoc(1));
indexReader.close();
}
@Test
public void testPartialIterator() throws IOException {
IndexReader indexReader = DirectoryReader.open(indexDir);
Term term = DrillDown.term(indexingParams, new CategoryPath("genre","software"));
EnhancementsPayloadIterator iterator = new EnhancementsPayloadIterator(
indexingParams.getCategoryEnhancements(), indexReader, term);
assertTrue("Unexpected failure of init()", iterator.init());
assertFalse("Unexpected payload for genre/computing in doc 0", iterator.setdoc(0));
assertTrue("Missing instance of genre/computing in doc 1", iterator.setdoc(1));
float assoc = Float.intBitsToFloat((Integer) iterator
.getCategoryData(associationEnhancement));
assertEquals("Unexpected association value for genre/computing in doc 1", 0.34f, assoc, 0.001);
indexReader.close();
}
@AfterClass
public static void closeDirectories() throws IOException {
indexDir.close();
indexDir = null;
taxoDir.close();
taxoDir = null;
}
}