package org.apache.lucene.facet;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.Field.Index;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.document.Field.TermVector;
import org.apache.lucene.index.CorruptIndexException;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.RandomIndexWriter;
import org.apache.lucene.search.Collector;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.apache.lucene.search.TopScoreDocCollector;
import org.apache.lucene.store.Directory;
import org.apache.lucene.search.MultiCollector;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.facet.index.CategoryDocumentBuilder;
import org.apache.lucene.facet.index.params.DefaultFacetIndexingParams;
import org.apache.lucene.facet.index.params.FacetIndexingParams;
import org.apache.lucene.facet.search.FacetsCollector;
import org.apache.lucene.facet.search.params.CountFacetRequest;
import org.apache.lucene.facet.search.params.FacetRequest;
import org.apache.lucene.facet.search.params.FacetSearchParams;
import org.apache.lucene.facet.taxonomy.CategoryPath;
import org.apache.lucene.facet.taxonomy.TaxonomyReader;
import org.apache.lucene.facet.taxonomy.TaxonomyWriter;
import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader;
import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter;
/**
* 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 FacetTestUtils {
public static Directory[][] createIndexTaxonomyDirs(int number) throws IOException {
Directory[][] dirs = new Directory[number][2];
for (int i = 0; i < number; i++) {
dirs[i][0] = LuceneTestCase.newDirectory();
dirs[i][1] = LuceneTestCase.newDirectory();
}
return dirs;
}
public static IndexTaxonomyReaderPair[] createIndexTaxonomyReaderPair(
Directory[][] dirs) throws IOException {
IndexTaxonomyReaderPair[] pairs = new IndexTaxonomyReaderPair[dirs.length];
for (int i = 0; i < dirs.length; i++) {
IndexTaxonomyReaderPair pair = new IndexTaxonomyReaderPair();
pair.indexReader = IndexReader.open(dirs[i][0]);
pair.indexSearcher = new IndexSearcher(pair.indexReader);
pair.taxReader = new DirectoryTaxonomyReader(dirs[i][1]);
pairs[i] = pair;
}
return pairs;
}
public static IndexTaxonomyWriterPair[] createIndexTaxonomyWriterPair(
Directory[][] dirs) throws IOException {
IndexTaxonomyWriterPair[] pairs = new IndexTaxonomyWriterPair[dirs.length];
for (int i = 0; i < dirs.length; i++) {
IndexTaxonomyWriterPair pair = new IndexTaxonomyWriterPair();
pair.indexWriter = new IndexWriter(dirs[i][0], new IndexWriterConfig(
LuceneTestCase.TEST_VERSION_CURRENT, new StandardAnalyzer(
LuceneTestCase.TEST_VERSION_CURRENT)));
pair.taxWriter = new DirectoryTaxonomyWriter(dirs[i][1]);
pair.indexWriter.commit();
pair.taxWriter.commit();
pairs[i] = pair;
}
return pairs;
}
public static Collector[] search(IndexSearcher searcher,
TaxonomyReader taxonomyReader, DefaultFacetIndexingParams iParams,
int k, String... facetNames) throws IOException,
IllegalAccessException, InstantiationException {
Collector[] collectors = new Collector[2];
FacetSearchParams facetSearchParams = new FacetSearchParams(iParams);
Collection<FacetRequest> fRequests = new ArrayList<FacetRequest>();
for (String facetName : facetNames) {
CategoryPath cp = new CategoryPath(facetName);
FacetRequest fq = new CountFacetRequest(cp, k);
facetSearchParams.addFacetRequest(fq);
fRequests.add(fq);
}
TopScoreDocCollector topDocsCollector = TopScoreDocCollector.create(
searcher.getIndexReader().maxDoc(), true);
FacetsCollector facetsCollector = new FacetsCollector(
facetSearchParams, searcher.getIndexReader(), taxonomyReader);
Collector mColl = MultiCollector.wrap(topDocsCollector, facetsCollector);
collectors[0] = topDocsCollector;
collectors[1] = facetsCollector;
searcher.search(new MatchAllDocsQuery(), mColl);
return collectors;
}
public static void add(FacetIndexingParams iParams, RandomIndexWriter iw,
TaxonomyWriter tw, String... strings) throws IOException,
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);
}
public static class IndexTaxonomyReaderPair {
public IndexReader indexReader;
public TaxonomyReader taxReader;
public IndexSearcher indexSearcher;
public void close() throws IOException {
indexSearcher.close();
indexReader.close();
taxReader.close();
}
}
public static class IndexTaxonomyWriterPair {
public IndexWriter indexWriter;
public TaxonomyWriter taxWriter;
public void close() throws IOException {
indexWriter.close();
taxWriter.close();
}
public void commit() throws IOException {
indexWriter.commit();
taxWriter.commit();
}
}
}