Package org.apache.lucene.queryParser.standard

Examples of org.apache.lucene.queryParser.standard.StandardQueryParser

The syntax for query strings is as follows (copied from the old QueryParser javadoc):

The text parser used by this helper is a {@link StandardSyntaxParser}.

The query node processor used by this helper is a {@link StandardQueryNodeProcessorPipeline}.

The builder used by this helper is a {@link StandardQueryTreeBuilder}.

@see StandardQueryParser @see StandardQueryConfigHandler @see StandardSyntaxParser @see StandardQueryNodeProcessorPipeline @see StandardQueryTreeBuilder

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  private static int multiToken = 0;

  public void testMultiAnalyzer() throws QueryNodeException {

    StandardQueryParser qp = new StandardQueryParser();
    qp.setAnalyzer(new MultiAnalyzer());

    // trivial, no multiple tokens:
    assertEquals("foo", qp.parse("foo", "").toString());
    assertEquals("foo", qp.parse("\"foo\"", "").toString());
    assertEquals("foo foobar", qp.parse("foo foobar", "").toString());
    assertEquals("\"foo foobar\"", qp.parse("\"foo foobar\"", "").toString());
    assertEquals("\"foo foobar blah\"", qp.parse("\"foo foobar blah\"", "")
        .toString());

    // two tokens at the same position:
    assertEquals("(multi multi2) foo", qp.parse("multi foo", "").toString());
    assertEquals("foo (multi multi2)", qp.parse("foo multi", "").toString());
    assertEquals("(multi multi2) (multi multi2)", qp.parse("multi multi", "")
        .toString());
    assertEquals("+(foo (multi multi2)) +(bar (multi multi2))", qp.parse(
        "+(foo multi) +(bar multi)", "").toString());
    assertEquals("+(foo (multi multi2)) field:\"bar (multi multi2)\"", qp
        .parse("+(foo multi) field:\"bar multi\"", "").toString());

    // phrases:
    assertEquals("\"(multi multi2) foo\"", qp.parse("\"multi foo\"", "")
        .toString());
    assertEquals("\"foo (multi multi2)\"", qp.parse("\"foo multi\"", "")
        .toString());
    assertEquals("\"foo (multi multi2) foobar (multi multi2)\"", qp.parse(
        "\"foo multi foobar multi\"", "").toString());

    // fields:
    assertEquals("(field:multi field:multi2) field:foo", qp.parse(
        "field:multi field:foo", "").toString());
    assertEquals("field:\"(multi multi2) foo\"", qp.parse(
        "field:\"multi foo\"", "").toString());

    // three tokens at one position:
    assertEquals("triplemulti multi3 multi2", qp.parse("triplemulti", "")
        .toString());
    assertEquals("foo (triplemulti multi3 multi2) foobar", qp.parse(
        "foo triplemulti foobar", "").toString());

    // phrase with non-default slop:
    assertEquals("\"(multi multi2) foo\"~10", qp.parse("\"multi foo\"~10", "")
        .toString());

    // phrase with non-default boost:
    assertEquals("\"(multi multi2) foo\"^2.0", qp.parse("\"multi foo\"^2", "")
        .toString());

    // phrase after changing default slop
    qp.setDefaultPhraseSlop(99);
    assertEquals("\"(multi multi2) foo\"~99 bar", qp.parse("\"multi foo\" bar",
        "").toString());
    assertEquals("\"(multi multi2) foo\"~99 \"foo bar\"~2", qp.parse(
        "\"multi foo\" \"foo bar\"~2", "").toString());
    qp.setDefaultPhraseSlop(0);

    // non-default operator:
    qp.setDefaultOperator(Operator.AND);
    assertEquals("+(multi multi2) +foo", qp.parse("multi foo", "").toString());

  }
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  // qp.parse("\"multi foo\" bar").toString());
  //   
  // }

  public void testPosIncrementAnalyzer() throws QueryNodeException {
    StandardQueryParser qp = new StandardQueryParser();
    qp.setAnalyzer(new PosIncrementAnalyzer());

    assertEquals("quick brown", qp.parse("the quick brown", "").toString());
    assertEquals("\"quick brown\"", qp.parse("\"the quick brown\"", "")
        .toString());
    assertEquals("quick brown fox", qp.parse("the quick brown fox", "")
        .toString());
    assertEquals("\"quick brown fox\"", qp.parse("\"the quick brown fox\"", "")
        .toString());
  }
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  private static int multiToken = 0;

  public void testMultiAnalyzer() throws QueryNodeException {

    StandardQueryParser qp = new StandardQueryParser();
    qp.setAnalyzer(new MultiAnalyzer());

    // trivial, no multiple tokens:
    assertEquals("foo", qp.parse("foo", "").toString());
    assertEquals("foo", qp.parse("\"foo\"", "").toString());
    assertEquals("foo foobar", qp.parse("foo foobar", "").toString());
    assertEquals("\"foo foobar\"", qp.parse("\"foo foobar\"", "").toString());
    assertEquals("\"foo foobar blah\"", qp.parse("\"foo foobar blah\"", "")
        .toString());

    // two tokens at the same position:
    assertEquals("(multi multi2) foo", qp.parse("multi foo", "").toString());
    assertEquals("foo (multi multi2)", qp.parse("foo multi", "").toString());
    assertEquals("(multi multi2) (multi multi2)", qp.parse("multi multi", "")
        .toString());
    assertEquals("+(foo (multi multi2)) +(bar (multi multi2))", qp.parse(
        "+(foo multi) +(bar multi)", "").toString());
    assertEquals("+(foo (multi multi2)) field:\"bar (multi multi2)\"", qp
        .parse("+(foo multi) field:\"bar multi\"", "").toString());

    // phrases:
    assertEquals("\"(multi multi2) foo\"", qp.parse("\"multi foo\"", "")
        .toString());
    assertEquals("\"foo (multi multi2)\"", qp.parse("\"foo multi\"", "")
        .toString());
    assertEquals("\"foo (multi multi2) foobar (multi multi2)\"", qp.parse(
        "\"foo multi foobar multi\"", "").toString());

    // fields:
    assertEquals("(field:multi field:multi2) field:foo", qp.parse(
        "field:multi field:foo", "").toString());
    assertEquals("field:\"(multi multi2) foo\"", qp.parse(
        "field:\"multi foo\"", "").toString());

    // three tokens at one position:
    assertEquals("triplemulti multi3 multi2", qp.parse("triplemulti", "")
        .toString());
    assertEquals("foo (triplemulti multi3 multi2) foobar", qp.parse(
        "foo triplemulti foobar", "").toString());

    // phrase with non-default slop:
    assertEquals("\"(multi multi2) foo\"~10", qp.parse("\"multi foo\"~10", "")
        .toString());

    // phrase with non-default boost:
    assertEquals("\"(multi multi2) foo\"^2.0", qp.parse("\"multi foo\"^2", "")
        .toString());

    // phrase after changing default slop
    qp.setDefaultPhraseSlop(99);
    assertEquals("\"(multi multi2) foo\"~99 bar", qp.parse("\"multi foo\" bar",
        "").toString());
    assertEquals("\"(multi multi2) foo\"~99 \"foo bar\"~2", qp.parse(
        "\"multi foo\" \"foo bar\"~2", "").toString());
    qp.setDefaultPhraseSlop(0);

    // non-default operator:
    qp.setDefaultOperator(Operator.AND);
    assertEquals("+(multi multi2) +foo", qp.parse("multi foo", "").toString());

  }
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  // qp.parse("\"multi foo\" bar").toString());
  //   
  // }

  public void testPosIncrementAnalyzer() throws QueryNodeException {
    StandardQueryParser qp = new StandardQueryParser();
    qp.setAnalyzer(new PosIncrementAnalyzer());

    assertEquals("quick brown", qp.parse("the quick brown", "").toString());
    assertEquals("\"quick brown\"", qp.parse("\"the quick brown\"", "")
        .toString());
    assertEquals("quick brown fox", qp.parse("the quick brown fox", "")
        .toString());
    assertEquals("\"quick brown fox\"", qp.parse("\"the quick brown fox\"", "")
        .toString());
  }
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  }

  public StandardQueryParser getParser(Analyzer a) throws Exception {
    if (a == null)
      a = new SimpleAnalyzer(TEST_VERSION_CURRENT);
    StandardQueryParser qp = new StandardQueryParser();
    qp.setAnalyzer(a);

    qp.setDefaultOperator(StandardQueryConfigHandler.Operator.OR);

    return qp;

  }
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  public Query getQuery(String query, Analyzer a) throws Exception {
    return getParser(a).parse(query, "field");
  }

  public Query getQueryAllowLeadingWildcard(String query, Analyzer a) throws Exception {
    StandardQueryParser parser = getParser(a);
    parser.setAllowLeadingWildcard(true);
    return parser.parse(query, "field");
  }
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    }
  }

  public void assertWildcardQueryEquals(String query, boolean lowercase,
      String result, boolean allowLeadingWildcard) throws Exception {
    StandardQueryParser qp = getParser(null);
    qp.setLowercaseExpandedTerms(lowercase);
    qp.setAllowLeadingWildcard(allowLeadingWildcard);
    Query q = qp.parse(query, "field");
    String s = q.toString("field");
    if (!s.equals(result)) {
      fail("WildcardQuery /" + query + "/ yielded /" + s + "/, expecting /"
          + result + "/");
    }
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    assertWildcardQueryEquals(query, lowercase, result, false);
  }

  public void assertWildcardQueryEquals(String query, String result)
      throws Exception {
    StandardQueryParser qp = getParser(null);
    Query q = qp.parse(query, "field");
    String s = q.toString("field");
    if (!s.equals(result)) {
      fail("WildcardQuery /" + query + "/ yielded /" + s + "/, expecting /"
          + result + "/");
    }
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  }

  public Query getQueryDOA(String query, Analyzer a) throws Exception {
    if (a == null)
      a = new SimpleAnalyzer(TEST_VERSION_CURRENT);
    StandardQueryParser qp = new StandardQueryParser();
    qp.setAnalyzer(a);
    qp.setDefaultOperator(Operator.AND);

    return qp.parse(query, "field");

  }
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          + "/");
    }
  }

  public void testConstantScoreAutoRewrite() throws Exception {
    StandardQueryParser qp = new StandardQueryParser(new MockAnalyzer(random, MockTokenizer.WHITESPACE, false));
    Query q = qp.parse("foo*bar", "field");
    assertTrue(q instanceof WildcardQuery);
    assertEquals(MultiTermQuery.CONSTANT_SCORE_AUTO_REWRITE_DEFAULT, ((MultiTermQuery) q).getRewriteMethod());

    q = qp.parse("foo*", "field");
    assertTrue(q instanceof PrefixQuery);
    assertEquals(MultiTermQuery.CONSTANT_SCORE_AUTO_REWRITE_DEFAULT, ((MultiTermQuery) q).getRewriteMethod());

    q = qp.parse("[a TO z]", "field");
    assertTrue(q instanceof TermRangeQuery);
    assertEquals(MultiTermQuery.CONSTANT_SCORE_AUTO_REWRITE_DEFAULT, ((MultiTermQuery) q).getRewriteMethod());
  }
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Related Classes of org.apache.lucene.queryParser.standard.StandardQueryParser

  • org.apache.lucene.queryParser.core.config.QueryConfigHandler
  • org.apache.lucene.queryParser.standard.builders.StandardQueryTreeBuilder
  • org.apache.lucene.queryParser.standard.config.AllowLeadingWildcardAttribute
  • org.apache.lucene.queryParser.standard.config.AnalyzerAttribute
  • org.apache.lucene.queryParser.standard.config.DateResolutionAttribute
  • org.apache.lucene.queryParser.standard.config.DefaultOperatorAttribute
  • org.apache.lucene.queryParser.standard.config.DefaultPhraseSlopAttribute
  • org.apache.lucene.queryParser.standard.config.FieldBoostMapAttribute
  • org.apache.lucene.queryParser.standard.config.FieldDateResolutionMapAttribute
  • org.apache.lucene.queryParser.standard.config.FuzzyAttribute
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