aos.lucene.search.advanced.SecurityFilterTest.java Source code

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Here is the source code for aos.lucene.search.advanced.SecurityFilterTest.java

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package aos.lucene.search.advanced;

import junit.framework.TestCase;

import org.apache.lucene.analysis.WhitespaceAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.QueryWrapperFilter;
import org.apache.lucene.search.Filter;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;

import io.aos.lucene.util.TestUtil;

// From chapter 5
public class SecurityFilterTest extends TestCase {

    private IndexSearcher searcher;

    protected void setUp() throws Exception {
        Directory directory = new RAMDirectory();
        IndexWriter writer = new IndexWriter(directory, new WhitespaceAnalyzer(Version.LUCENE_46),
                IndexWriter.MaxFieldLength.UNLIMITED);

        Document document = new Document();
        document.add(new Field("owner", "elwood", Field.Store.YES, Field.Index.NOT_ANALYZED));
        document.add(new Field("keywords", "elwood's sensitive info", Field.Store.YES, Field.Index.ANALYZED));
        writer.addDocument(document);

        document = new Document();
        document.add(new Field("owner", "jake", Field.Store.YES, Field.Index.NOT_ANALYZED));
        document.add(new Field("keywords", "jake's sensitive info", Field.Store.YES, Field.Index.ANALYZED));
        writer.addDocument(document);

        writer.close();
        searcher = new IndexSearcher(directory);
    }
    /*
    #1 Elwood
    #2 Jake
    */

    public void testSecurityFilter() throws Exception {
        TermQuery query = new TermQuery( //#1
                new Term("keywords", "info")); //#1

        assertEquals("Both documents match", //#2
                2, //#2
                TestUtil.hitCount(searcher, query)); //#2

        Filter jakeFilter = new QueryWrapperFilter( //#3
                new TermQuery(new Term("owner", "jake"))); //#3

        TopDocs hits = searcher.search(query, jakeFilter, 10);
        assertEquals(1, hits.totalHits); //#4
        assertEquals("elwood is safe", //#4
                "jake's sensitive info", //#4
                searcher.doc(hits.scoreDocs[0].doc) //#4
                        .get("keywords")); //#4
    }
    /*
      #1 TermQuery for "info"
      #2 Returns documents containing "info"
      #3 Filter
      #4 Same TermQuery, constrained results
    */
}