Java tutorial
/** * Copyright Andrey Prokopenko * * 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. */ package org.apache.solr.codecs.test; import org.apache.solr.codecs.onsql.ONSQLCodec; import org.apache.solr.codecs.onsql.ONSQLKVstoreHandler; import org.apache.solr.codecs.onsql.ONSQLWrapperDirectory; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.util.Properties; import oracle.kv.KVStore; import org.apache.lucene.analysis.standard.StandardAnalyzer; import org.apache.lucene.document.Document; import org.apache.lucene.index.DirectoryReader; import org.apache.lucene.index.IndexReader; import org.apache.lucene.index.IndexWriter; import org.apache.lucene.index.IndexWriterConfig; import org.apache.lucene.queryparser.classic.ParseException; import org.apache.lucene.queryparser.classic.QueryParser; import org.apache.lucene.search.IndexSearcher; import org.apache.lucene.search.Query; import org.apache.lucene.search.TotalHitCountCollector; import org.apache.lucene.store.Directory; import org.apache.lucene.store.FSDirectory; import org.apache.lucene.util.Version; public class testGetStoredFields { private static final String INDEX_ROOT_FOLDER = "C:\\work\\search_engine\\codec\\index-dir"; private static File plaintextDir; public static void main(String[] args) { try { testUtil.initPropsONSQL(); plaintextDir = assureDirectoryExists(new File(INDEX_ROOT_FOLDER)); getDoc("content", "fourth"); } catch (Throwable te) { te.printStackTrace(); } } private static File assureDirectoryExists(File dir) { if (!dir.exists()) { dir.mkdirs(); } return dir; } public static void getDoc(String searchField, String searchString) throws IOException, ParseException { System.out.println("Searching for '" + searchString + "'"); Directory luceneDir = new ONSQLWrapperDirectory(new File(INDEX_ROOT_FOLDER)); IndexReader indexReader = DirectoryReader.open(luceneDir); IndexSearcher indexSearcher = new IndexSearcher(indexReader); TotalHitCountCollector hitCountCollector = new TotalHitCountCollector(); StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_4_10_1); QueryParser queryParser = new QueryParser(Version.LUCENE_4_10_1, searchField, analyzer); Query query = queryParser.parse(searchString); indexSearcher.search(query, hitCountCollector); System.out.println("Word: " + searchString + "; Number of hits: " + hitCountCollector.getTotalHits()); System.out.println("maxdocs=" + indexReader.maxDoc()); org.apache.lucene.search.TopDocs docs = indexSearcher.search(query, 100); for (int i = 0; i < docs.scoreDocs.length; i++) { Document doc1 = indexReader.document(docs.scoreDocs[i].doc); System.out.println("title=" + doc1.get("title")); System.out.println("content=" + doc1.get("content")); System.out.println("global_bu_id=" + doc1.get("global_bu_id")); System.out.println("omega_order_num=" + doc1.get("omega_order_num")); System.out.println("------"); } luceneDir.close(); } }