package org.apache.lucene.facet.example.simple;
import java.util.List;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;
import org.apache.lucene.facet.example.ExampleResult;
import org.apache.lucene.facet.example.ExampleUtils;
import org.apache.lucene.facet.search.results.FacetResult;
import org.apache.lucene.facet.taxonomy.TaxonomyReader;
import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader;
/**
* 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.
*/
/**
* Driver for the simple sample.
*
* @lucene.experimental
*/
public class SimpleMain {
/**
* Driver for the simple sample.
* @throws Exception on error (no detailed exception handling here for sample simplicity
*/
public static void main(String[] args) throws Exception {
new SimpleMain().runSimple();
new SimpleMain().runDrillDown().getFacetResults();
ExampleUtils.log("DONE");
}
public ExampleResult runSimple() throws Exception {
// create Directories for the search index and for the taxonomy index
Directory indexDir = new RAMDirectory();
Directory taxoDir = new RAMDirectory();
// index the sample documents
ExampleUtils.log("index the sample documents...");
SimpleIndexer.index(indexDir, taxoDir);
// open readers
TaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
IndexReader indexReader = IndexReader.open(indexDir, true);
ExampleUtils.log("search the sample documents...");
List<FacetResult> facetRes = SimpleSearcher.searchWithFacets(indexReader, taxo);
// close readers
taxo.close();
indexReader.close();
ExampleResult res = new ExampleResult();
res.setFacetResults(facetRes);
return res;
}
public ExampleResult runDrillDown() throws Exception {
// create Directories for the search index and for the taxonomy index
Directory indexDir = new RAMDirectory();
Directory taxoDir = new RAMDirectory();
// index the sample documents
ExampleUtils.log("index the sample documents...");
SimpleIndexer.index(indexDir, taxoDir);
// open readers
TaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
IndexReader indexReader = IndexReader.open(indexDir, true);
ExampleUtils.log("search the sample documents...");
List<FacetResult> facetRes = SimpleSearcher.searchWithDrillDown(indexReader, taxo);
// close readers
taxo.close();
indexReader.close();
ExampleResult res = new ExampleResult();
res.setFacetResults(facetRes);
return res;
}
}