Package org.apache.nutch.searcher

Examples of org.apache.nutch.searcher.Query

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    } finally {
      in.close();
    }
   
    // Convert the query string into a proper Query
    Query query = Query.parse(queryBuf.toString(), conf);
    System.out.println("Summary: '" + s.getSummary(body.toString(), query) + "'");
  }
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  public void testURLQueryFilter() {
    Configuration conf = NutchConfiguration.create();
    URLQueryFilter urlQueryFilter = new URLQueryFilter();
    urlQueryFilter.setConf(conf);
    try {
      Query q = Query.parse("url:www.apache.org", conf);
      BooleanQuery result = new BooleanQuery();
      urlQueryFilter.filter(q, result);
    } catch (Exception e) {
      fail("Should not throw any exception!");
    }
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    }
  }

/** Parse a query. */
  final public Query parse(Configuration conf) throws ParseException {
  Query query = new Query(conf);
  ArrayList terms;
  Token token;
  String field;
  boolean stop;
  boolean prohibited;
    nonOpOrTerm();
    label_1:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case WORD:
      case ACRONYM:
      case SIGRAM:
      case PLUS:
      case MINUS:
      case QUOTE:
        ;
        break;
      default:
        jj_la1[0] = jj_gen;
        break label_1;
      }
      stop=true; prohibited=false; field = Clause.DEFAULT_FIELD;
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case PLUS:
      case MINUS:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case PLUS:
          jj_consume_token(PLUS);
              stop=false;
          break;
        case MINUS:
          jj_consume_token(MINUS);
                                        stop=false;prohibited=true;
          break;
        default:
          jj_la1[1] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
        break;
      default:
        jj_la1[2] = jj_gen;
        ;
      }
      if (jj_2_1(2147483647)) {
        token = jj_consume_token(WORD);
        jj_consume_token(COLON);
                             field = token.image;
      } else {
        ;
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case QUOTE:
        terms = phrase(field);
                           stop=false;
        break;
      case WORD:
      case ACRONYM:
      case SIGRAM:
        // quoted terms or
              terms = compound(field);
        break;
      default:
        jj_la1[3] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
      nonOpOrTerm();
      String[] array = (String[])terms.toArray(new String[terms.size()]);

      if (stop
          && field == Clause.DEFAULT_FIELD
          && terms.size()==1
          && isStopWord(array[0])) {
        // ignore stop words only when single, unadorned terms in default field
      } else {
        if (prohibited)
          query.addProhibitedPhrase(array, field);
        else
          query.addRequiredPhrase(array, field);
      }
    }
    {if (true) return query;}
    throw new Error("Missing return statement in function");
  }
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    }
  }

/** Parse a query. */
  final public Query parse() throws ParseException {
  Query query = new Query();
  ArrayList terms;
  Token token;
  String field;
  boolean stop;
  boolean prohibited;
    nonOpOrTerm();
    label_1:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case WORD:
      case ACRONYM:
      case SIGRAM:
      case PLUS:
      case MINUS:
      case QUOTE:
        ;
        break;
      default:
        jj_la1[0] = jj_gen;
        break label_1;
      }
      stop=true; prohibited=false; field = Clause.DEFAULT_FIELD;
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case PLUS:
      case MINUS:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case PLUS:
          jj_consume_token(PLUS);
              stop=false;
          break;
        case MINUS:
          jj_consume_token(MINUS);
                                        stop=false;prohibited=true;
          break;
        default:
          jj_la1[1] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
        break;
      default:
        jj_la1[2] = jj_gen;
        ;
      }
      if (jj_2_1(2147483647)) {
        token = jj_consume_token(WORD);
        jj_consume_token(COLON);
                             field = token.image;
      } else {
        ;
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case QUOTE:
        terms = phrase(field);
                           stop=false;
        break;
      case WORD:
      case ACRONYM:
      case SIGRAM:
        // quoted terms or
              terms = compound(field);
        break;
      default:
        jj_la1[3] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
      nonOpOrTerm();
      String[] array = (String[])terms.toArray(new String[terms.size()]);

      if (stop
          && field == Clause.DEFAULT_FIELD
          && terms.size()==1
          && isStopWord(array[0])) {
        // ignore stop words only when single, unadorned terms in default field
      } else {
        if (prohibited)
          query.addProhibitedPhrase(array, field);
        else
          query.addRequiredPhrase(array, field);
      }
    }
    {if (true) return query;}
    throw new Error("Missing return statement in function");
  }
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*/
public class TestQueryParser extends TestCase {

  public void assertQueryEquals(String query, String result) throws Exception {
    try {
      Query q = NutchAnalysis.parseQuery(query);
      String s = q.toString();
      if (!s.equals(result)) {
        fail("Query /" + query + "/ yielded /" + s + "/, expecting /" + result
            + "/");
      }
    } catch (Exception e) {
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    }
  }

/** Parse a query. */
  final public Query parse(Configuration conf) throws ParseException {
  Query query = new Query(conf);
  ArrayList<String> terms;
  Token token;
  String field;
  boolean stop;
  boolean prohibited;
    nonOpOrTerm();
    label_1:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case WORD:
      case ACRONYM:
      case SIGRAM:
      case PLUS:
      case MINUS:
      case QUOTE:
        ;
        break;
      default:
        jj_la1[0] = jj_gen;
        break label_1;
      }
      stop=true; prohibited=false; field = Clause.DEFAULT_FIELD;
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case PLUS:
      case MINUS:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case PLUS:
          jj_consume_token(PLUS);
              stop=false;
          break;
        case MINUS:
          jj_consume_token(MINUS);
                                        stop=false;prohibited=true;
          break;
        default:
          jj_la1[1] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
        break;
      default:
        jj_la1[2] = jj_gen;
        ;
      }
      if (jj_2_1(2147483647)) {
        token = jj_consume_token(WORD);
        jj_consume_token(COLON);
                             field = token.image;
      } else {
        ;
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case QUOTE:
        terms = phrase(field);
                           stop=false;
        break;
      case WORD:
      case ACRONYM:
      case SIGRAM:
        // quoted terms or
              terms = compound(field);
        break;
      default:
        jj_la1[3] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
      nonOpOrTerm();
      String[] array = terms.toArray(new String[terms.size()]);

      if (stop
          && field == Clause.DEFAULT_FIELD
          && terms.size()==1
          && isStopWord(array[0])) {
        // ignore stop words only when single, unadorned terms in default field
      } else {
        if (prohibited)
          query.addProhibitedPhrase(array, field);
        else
          query.addRequiredPhrase(array, field);
      }
    }
    {if (true) return query;}
    throw new Error("Missing return statement in function");
  }
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    } finally {
      in.close();
    }
   
    // Convert the query string into a proper Query
    Query query = Query.parse(queryBuf.toString(), conf);
    System.out.println("Summary: '" + s.getSummary(body.toString(), query) + "'");
  }
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  public void testURLQueryFilter() {
    Configuration conf = NutchConfiguration.create();
    URLQueryFilter urlQueryFilter = new URLQueryFilter();
    urlQueryFilter.setConf(conf);
    try {
      Query q = Query.parse("url:www.apache.org", conf);
      BooleanQuery result = new BooleanQuery();
      urlQueryFilter.filter(q, result);
    } catch (Exception e) {
      fail("Should not throw any exception!");
    }
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public class TestQueryParser extends TestCase {

  private static Configuration conf = NutchConfiguration.create();
  public void assertQueryEquals(String query, String result) throws Exception {
    try {
      Query q = NutchAnalysis.parseQuery(query, conf);
      String s = q.toString();
      if (!s.equals(result)) {
        fail("Query /" + query + "/ yielded /" + s + "/, expecting /" + result
            + "/");
      }
    } catch (Exception e) {
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Related Classes of org.apache.nutch.searcher.Query

  • org.apache.hadoop.conf.Configuration
  • org.apache.nutch.analysis.NutchAnalysis
  • org.apache.nutch.analysis.TestQueryParser
  • org.apache.nutch.keymatch.TestSimpleKeyMatcher
  • org.apache.nutch.keymatch.TestViewCountSorter
  • org.apache.nutch.searcher.NutchBean
  • org.apache.nutch.searcher.response.SearchServlet
  • org.apache.nutch.searcher.url.TestURLQueryFilter
  • org.apache.nutch.spell.SpellCheckerBean
  • org.apache.nutch.summary.basic.BasicSummarizer
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