io.datalayer.lucene.delete.LuceneDeleteTest.java Source code

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Here is the source code for io.datalayer.lucene.delete.LuceneDeleteTest.java

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package io.datalayer.lucene.delete;

import static io.datalayer.lucene.helper.AosField.ID;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import io.datalayer.lucene.helper.AosIndexUtil;

import java.io.IOException;

import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TopDocs;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LuceneDeleteTest {
    private static final Logger LOGGER = LoggerFactory.getLogger(LuceneDeleteTest.class);

    @Test
    public void testDelete() throws IOException {

        IndexWriter writer = AosIndexUtil.newIndexWithDocuments();

        Term term = new Term(ID, "1");
        Query query = new TermQuery(term);

        IndexReader reader = DirectoryReader.open(writer, true);
        IndexSearcher indexSearcher = new IndexSearcher(DirectoryReader.open(writer, true));

        TopDocs topDocs = indexSearcher.search(query, 1);
        LOGGER.info("" + topDocs.scoreDocs[0].doc);
        assertNotNull(reader.document(topDocs.scoreDocs[0].doc));

        LOGGER.info("Deleting documents containing " + term);
        writer.deleteDocuments(term);
        //        writer.deleteDocuments(query);
        writer.commit();

        indexSearcher = new IndexSearcher(DirectoryReader.open(writer, true));
        topDocs = indexSearcher.search(query, 1);
        assertEquals(0, topDocs.scoreDocs.length);

        reader.close();
        writer.close();

    }

}