retrievability.UserQueryIndex.java Source code

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Here is the source code for retrievability.UserQueryIndex.java

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package retrievability;

/**
 *
 * @author AYANAVA
 */

import java.net.*;
import java.io.*;
import java.util.Iterator;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.core.SimpleAnalyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.StringField;
import org.apache.lucene.index.CorruptIndexException;
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.index.Term;
import org.apache.lucene.queryparser.classic.QueryParser;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.search.TopScoreDocCollector;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.store.LockObtainFailedException;
import org.apache.lucene.util.Version;
import static org.apache.sis.internal.system.Semaphores.query;
import static retrievability.Try.indexDir;
import servelet.Jave_serv;

public class UserQueryIndex {

    static String query_entered;
    static String user_id;
    static String indexDir = "C:\\Users\\AYANAVA\\Documents\\NetBeansProjects\\delete\\";

    public static void indexing(String query, String user)
            throws Exception, CorruptIndexException, LockObtainFailedException, IOException {
        query_entered = query;
        user_id = user;
        System.out.println(query_entered + "\t" + user_id);

        Analyzer analyzer = new SimpleAnalyzer(Version.LUCENE_CURRENT);
        boolean recreateIndexIfExists = true;
        Directory index = FSDirectory.open(new File(indexDir));
        IndexWriterConfig iwConf = new IndexWriterConfig(Version.LUCENE_CURRENT, analyzer);
        iwConf.setOpenMode(IndexWriterConfig.OpenMode.CREATE_OR_APPEND);
        //File dir = new File(FILES_TO_INDEX_DIRECTORY);
        //File[] files = dir.listFiles();
        //for (File file : files) {

        IndexWriter indexWriter = new IndexWriter(index, iwConf);

        Document doc = new Document();

        doc.add(new Field("user_id", user_id, Field.Store.YES, Field.Index.ANALYZED));
        doc.add(new Field("search_query", query_entered, Field.Store.YES, Field.Index.ANALYZED));

        indexWriter.addDocument(doc);
        indexWriter.close();

    }

    public static void printing_indexes() throws Exception {

        ScoreDoc[] hits = null;
        TopDocs topDocs = null;

        System.out.println("Searching for --- ");
        Directory index = FSDirectory.open(new File(indexDir));
        IndexReader indexReader = IndexReader.open(index);
        IndexSearcher indexSearcher = new IndexSearcher(indexReader);
        //Searcher searcher=new Searcher();
        Query queryDocid = new TermQuery(new Term("user_id", "ayaisthebest"));
        //Analyzer analyzer = new SimpleAnalyzer(Version.LUCENE_CURRENT);
        //QueryParser queryParser = new QueryParser(Version.LUCENE_3_0, user_id, analyzer);

        TopScoreDocCollector collectorDocSearch = TopScoreDocCollector.create(100, true);

        indexSearcher.search(queryDocid, collectorDocSearch);
        topDocs = collectorDocSearch.topDocs();
        hits = topDocs.scoreDocs;
        System.out.println(hits.length);

        if (hits == null) {
            System.out.println("Nothing found");
            //return -1;
        } else {

            for (int i = 0; i < hits.length; i++) {
                System.out.println("printing ayaisthebest---" + hits[i]);
                int docId = hits[i].doc;
                Document d = indexSearcher.doc(docId);
                String prev_search = d.get("search_query");
                // do something with current hit
                System.err.println("docID:" + docId + d.get("search_query"));
                System.err.println("");

            }
            //return hits[0].doc;
        }
    }
}