com.mathworks.xzheng.advsearching.MultiFieldQueryParserTest.java Source code

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Here is the source code for com.mathworks.xzheng.advsearching.MultiFieldQueryParserTest.java

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package com.mathworks.xzheng.advsearching;

/**
 * Copyright Manning Publications Co.
 *
 * Licensed 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 lan      
*/

import junit.framework.TestCase;

import org.apache.lucene.analysis.core.SimpleAnalyzer;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.queryparser.classic.MultiFieldQueryParser;
import org.apache.lucene.search.BooleanClause;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.Version;

import com.mathworks.xzheng.common.TestUtil;

// From chapter 5
public class MultiFieldQueryParserTest extends TestCase {
    public void testDefaultOperator() throws Exception {
        Query query = new MultiFieldQueryParser(Version.LUCENE_46, new String[] { "title", "subject" },
                new SimpleAnalyzer(Version.LUCENE_46)).parse("development");

        Directory dir = TestUtil.getBookIndexDirectory();
        IndexSearcher searcher = new IndexSearcher(DirectoryReader.open(dir));
        TopDocs hits = searcher.search(query, 10);

        assertTrue(TestUtil.hitsIncludeTitle(searcher, hits, "Ant in Action"));

        assertTrue(TestUtil.hitsIncludeTitle( //A
                searcher, //A
                hits, //A
                "Extreme Programming Explained")); //A

        dir.close();
    }

    public void testSpecifiedOperator() throws Exception {
        Query query = MultiFieldQueryParser.parse(Version.LUCENE_46, "lucene", new String[] { "title", "subject" },
                new BooleanClause.Occur[] { BooleanClause.Occur.MUST, BooleanClause.Occur.MUST },
                new SimpleAnalyzer(Version.LUCENE_46));

        Directory dir = TestUtil.getBookIndexDirectory();
        IndexSearcher searcher = new IndexSearcher(DirectoryReader.open(dir));
        TopDocs hits = searcher.search(query, 10);

        assertTrue(TestUtil.hitsIncludeTitle(searcher, hits, "Lucene in Action, Second Edition"));
        assertEquals("one and only one", 1, hits.scoreDocs.length);

        dir.close();
    }

    /*
      #A Has development in the subject field
     */

}