Example usage for org.apache.lucene.search.spell SpellChecker getStringDistance

Introduction

In this page you can find the example usage for org.apache.lucene.search.spell SpellChecker getStringDistance.

Prototype

public StringDistance getStringDistance() 

Source Link

Document

Returns the StringDistance instance used by this SpellChecker instance.

Usage

From source file:org.apache.solr.spelling.IndexBasedSpellCheckerTest.java

License:Apache License

@Test
public void testAlternateDistance() throws Exception {
    TestSpellChecker checker = new TestSpellChecker();
    NamedList spellchecker = new NamedList();
    spellchecker.add("classname", IndexBasedSpellChecker.class.getName());

    File indexDir = new File(TEMP_DIR, "spellingIdx" + new Date().getTime());
    indexDir.mkdirs();//w  w w . j  a va  2  s .com
    spellchecker.add(AbstractLuceneSpellChecker.INDEX_DIR, indexDir.getAbsolutePath());
    spellchecker.add(AbstractLuceneSpellChecker.FIELD, "title");
    spellchecker.add(AbstractLuceneSpellChecker.SPELLCHECKER_ARG_NAME, spellchecker);
    spellchecker.add(AbstractLuceneSpellChecker.STRING_DISTANCE, JaroWinklerDistance.class.getName());
    SolrCore core = h.getCore();
    String dictName = checker.init(spellchecker, core);
    assertTrue(dictName + " is not equal to " + SolrSpellChecker.DEFAULT_DICTIONARY_NAME,
            dictName.equals(SolrSpellChecker.DEFAULT_DICTIONARY_NAME) == true);
    RefCounted<SolrIndexSearcher> holder = core.getSearcher();
    SolrIndexSearcher searcher = holder.get();
    try {
        checker.build(core, searcher);
        SpellChecker sc = checker.getSpellChecker();
        assertTrue("sc is null and it shouldn't be", sc != null);
        StringDistance sd = sc.getStringDistance();
        assertTrue("sd is null and it shouldn't be", sd != null);
        assertTrue("sd is not an instance of " + JaroWinklerDistance.class.getName(),
                sd instanceof JaroWinklerDistance);
    } finally {
        holder.decref();
    }
}

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