Java BooleanClause.Occur方法代碼示例

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
public void testAnalyzeWildcard() {
    SimpleQueryParser.Settings settings = new SimpleQueryParser.Settings();
    settings.analyzeWildcard(true);
    Map<String, Float> weights = new HashMap<>();
    weights.put("field1", 1.0f);
    SimpleQueryParser parser = new MockSimpleQueryParser(new StandardAnalyzer(), weights, -1, settings);
    for (Operator op : Operator.values()) {
        BooleanClause.Occur defaultOp = op.toBooleanClauseOccur();
        parser.setDefaultOperator(defaultOp);
        Query query = parser.parse("first foo-bar-foobar* last");
        Query expectedQuery =
            new BooleanQuery.Builder()
                .add(new BooleanClause(new TermQuery(new Term("field1", "first")), defaultOp))
                .add(new BooleanQuery.Builder()
                    .add(new BooleanClause(new TermQuery(new Term("field1", "foo")), defaultOp))
                    .add(new BooleanClause(new TermQuery(new Term("field1", "bar")), defaultOp))
                    .add(new BooleanClause(new PrefixQuery(new Term("field1", "foobar")), defaultOp))
                    .build(), defaultOp)
                .add(new BooleanClause(new TermQuery(new Term("field1", "last")), defaultOp))
                .build();
        assertThat(query, equalTo(expectedQuery));
    }
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
private static BooleanClause.Occur getModifierValue(QueryNode node) {

    if (node instanceof ModifierQueryNode) {
      ModifierQueryNode mNode = ((ModifierQueryNode) node);
      Modifier modifier = mNode.getModifier();

      if (Modifier.MOD_NONE.equals(modifier)) {
        return BooleanClause.Occur.SHOULD;

      } else if (Modifier.MOD_NOT.equals(modifier)) {
        return BooleanClause.Occur.MUST_NOT;

      } else {
        return BooleanClause.Occur.MUST;
      }
    }

    return BooleanClause.Occur.SHOULD;

  }
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
/**
 * @deprecated Use {@link #parse(String[], String[], BooleanClause.Occur[], Analyzer)}
 */
@Deprecated
public static Query parse(Version matchVersion, String[] queries, String[] fields, BooleanClause.Occur[] flags,
    Analyzer analyzer) throws ParseException
{
  if (!(queries.length == fields.length && queries.length == flags.length))
    throw new IllegalArgumentException("queries, fields, and flags array have have different length");
  BooleanQuery bQuery = new BooleanQuery();
  for (int i = 0; i < fields.length; i++)
  {
    QueryParser qp = new QueryParser(matchVersion, fields[i], analyzer);
    Query q = qp.parse(queries[i]);
    if (q!=null && // q never null, just being defensive
        (!(q instanceof BooleanQuery) || ((BooleanQuery)q).getClauses().length>0)) {
      bQuery.add(q, flags[i]);
    }
  }
  return bQuery;
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
@Override
public Query getQuery(Element e) throws ParserException {
  BooleanQuery bq = new BooleanQuery(DOMUtils.getAttribute(e, "disableCoord", false));
  bq.setMinimumNumberShouldMatch(DOMUtils.getAttribute(e, "minimumNumberShouldMatch", 0));
  bq.setBoost(DOMUtils.getAttribute(e, "boost", 1.0f));

  NodeList nl = e.getChildNodes();
  for (int i = 0; i < nl.getLength(); i++) {
    Node node = nl.item(i);
    if (node.getNodeName().equals("Clause")) {
      Element clauseElem = (Element) node;
      BooleanClause.Occur occurs = getOccursValue(clauseElem);

      Element clauseQuery = DOMUtils.getFirstChildOrFail(clauseElem);
      Query q = factory.getQuery(clauseQuery);
      bq.add(new BooleanClause(q, occurs));
    }
  }

  return bq;
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
static BooleanClause.Occur getOccursValue(Element clauseElem) throws ParserException {
  String occs = clauseElem.getAttribute("occurs");
  BooleanClause.Occur occurs = BooleanClause.Occur.SHOULD;
  if ("must".equalsIgnoreCase(occs)) {
    occurs = BooleanClause.Occur.MUST;
  } else {
    if ("mustNot".equalsIgnoreCase(occs)) {
      occurs = BooleanClause.Occur.MUST_NOT;
    } else {
      if (("should".equalsIgnoreCase(occs)) || ("".equals(occs))) {
        occurs = BooleanClause.Occur.SHOULD;
      } else {
        if (occs != null) {
          throw new ParserException("Invalid value for \"occurs\" attribute of clause:" + occs);
        }
      }
    }
  }
  return occurs;

}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
private Query toBooleanQuery(SearchQuery.Boolean booleanQuery) {
  BooleanQuery.Builder builder = new BooleanQuery.Builder();
  final BooleanClause.Occur occur;
  switch(booleanQuery.getOp()) {
  case AND:
    occur = BooleanClause.Occur.MUST;
    break;
  case OR:
    occur = BooleanClause.Occur.SHOULD;
      break;
  default:
    throw new AssertionError("Unknown boolean operator: " + booleanQuery.getOp());
  }

  for(SearchQuery clause: booleanQuery.getClausesList()) {
    builder.add(toLuceneQuery(clause), occur);
  }
  return builder.build();
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
/**
 * 查詢索引
 * 
 * @param keywords
 * @return
 * @throws Exception
 */
public List<Document> searchIndex(Integer typeId, String keywords) throws Exception {
    // 1.init searcher
    Analyzer analyzer = new PaodingAnalyzer();
    IndexReader reader = IndexReader.open(typeId == appConfig.getGameTypeId() ? appConfig.getGameIndexDir()
            : appConfig.getSoftIndexDir());
    BooleanClause.Occur[] flags = new BooleanClause.Occur[] { BooleanClause.Occur.SHOULD,
            BooleanClause.Occur.SHOULD };
    Query query = MultiFieldQueryParser.parse(keywords, appConfig.getQueryFields(), flags, analyzer);
    query = query.rewrite(reader);

    // 2.search
    List<Document> docs = new ArrayList<Document>();
    Hits hits = (typeId == appConfig.getGameTypeId() ? gameSearcher.search(query, Sort.RELEVANCE) : softSearcher
            .search(query, Sort.RELEVANCE));// searcher.search(query,
                                            // Sort.RELEVANCE);
    for (int i = 0; i < hits.length(); i++) {
        docs.add(hits.doc(i));
    }

    // 3.return
    reader.close();
    return docs;
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
public void testAnalyzerWildcardWithSynonyms() {
    SimpleQueryParser.Settings settings = new SimpleQueryParser.Settings();
    settings.analyzeWildcard(true);
    Map<String, Float> weights = new HashMap<>();
    weights.put("field1", 1.0f);
    SimpleQueryParser parser = new MockSimpleQueryParser(new MockRepeatAnalyzer(), weights, -1, settings);

    for (Operator op : Operator.values()) {
        BooleanClause.Occur defaultOp = op.toBooleanClauseOccur();
        parser.setDefaultOperator(defaultOp);
        Query query = parser.parse("first foo-bar-foobar* last");

        Query expectedQuery = new BooleanQuery.Builder()
            .add(new BooleanClause(new SynonymQuery(new Term("field1", "first"),
                new Term("field1", "first")), defaultOp))
            .add(new BooleanQuery.Builder()
                .add(new BooleanClause(new SynonymQuery(new Term("field1", "foo"),
                    new Term("field1", "foo")), defaultOp))
                .add(new BooleanClause(new SynonymQuery(new Term("field1", "bar"),
                    new Term("field1", "bar")), defaultOp))
                .add(new BooleanQuery.Builder()
                    .add(new BooleanClause(new PrefixQuery(new Term("field1", "foobar")),
                        BooleanClause.Occur.SHOULD))
                    .add(new BooleanClause(new PrefixQuery(new Term("field1", "foobar")),
                        BooleanClause.Occur.SHOULD))
                    .setDisableCoord(true)
                    .build(), defaultOp)
                .build(), defaultOp)
            .add(new BooleanClause(new SynonymQuery(new Term("field1", "last"),
                new Term("field1", "last")), defaultOp))
            .build();
        assertThat(query, equalTo(expectedQuery));
    }
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
public void testToQueryWildcarQuery() throws Exception {
    assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
    for (Operator op : Operator.values()) {
        BooleanClause.Occur defaultOp = op.toBooleanClauseOccur();
        MapperQueryParser queryParser = new MapperQueryParser(createShardContext());
        QueryParserSettings settings = new QueryParserSettings("first foo-bar-foobar* last");
        settings.defaultField(STRING_FIELD_NAME);
        settings.fieldsAndWeights(Collections.emptyMap());
        settings.analyzeWildcard(true);
        settings.fuzziness(Fuzziness.AUTO);
        settings.rewriteMethod(MultiTermQuery.CONSTANT_SCORE_REWRITE);
        settings.defaultOperator(op.toQueryParserOperator());
        queryParser.reset(settings);
        Query query = queryParser.parse("first foo-bar-foobar* last");
        Query expectedQuery =
            new BooleanQuery.Builder()
                .add(new BooleanClause(new TermQuery(new Term(STRING_FIELD_NAME, "first")), defaultOp))
                .add(new BooleanQuery.Builder()
                    .add(new BooleanClause(new TermQuery(new Term(STRING_FIELD_NAME, "foo")), defaultOp))
                    .add(new BooleanClause(new TermQuery(new Term(STRING_FIELD_NAME, "bar")), defaultOp))
                    .add(new BooleanClause(new PrefixQuery(new Term(STRING_FIELD_NAME, "foobar")), defaultOp))
                    .build(), defaultOp)
                .add(new BooleanClause(new TermQuery(new Term(STRING_FIELD_NAME, "last")), defaultOp))
                .build();
        assertThat(query, Matchers.equalTo(expectedQuery));
    }
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
public void testToQueryWilcardQueryWithSynonyms() throws Exception {
    assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
    for (Operator op : Operator.values()) {
        BooleanClause.Occur defaultOp = op.toBooleanClauseOccur();
        MapperQueryParser queryParser = new MapperQueryParser(createShardContext());
        QueryParserSettings settings = new QueryParserSettings("first foo-bar-foobar* last");
        settings.defaultField(STRING_FIELD_NAME);
        settings.fieldsAndWeights(Collections.emptyMap());
        settings.analyzeWildcard(true);
        settings.fuzziness(Fuzziness.AUTO);
        settings.rewriteMethod(MultiTermQuery.CONSTANT_SCORE_REWRITE);
        settings.defaultOperator(op.toQueryParserOperator());
        settings.forceAnalyzer(new MockRepeatAnalyzer());
        queryParser.reset(settings);
        Query query = queryParser.parse("first foo-bar-foobar* last");

        Query expectedQuery = new BooleanQuery.Builder()
            .add(new BooleanClause(new SynonymQuery(new Term(STRING_FIELD_NAME, "first"),
                new Term(STRING_FIELD_NAME, "first")), defaultOp))
            .add(new BooleanQuery.Builder()
                .add(new BooleanClause(new SynonymQuery(new Term(STRING_FIELD_NAME, "foo"),
                    new Term(STRING_FIELD_NAME, "foo")), defaultOp))
                .add(new BooleanClause(new SynonymQuery(new Term(STRING_FIELD_NAME, "bar"),
                    new Term(STRING_FIELD_NAME, "bar")), defaultOp))
                .add(new BooleanQuery.Builder()
                    .add(new BooleanClause(new PrefixQuery(new Term(STRING_FIELD_NAME, "foobar")),
                        BooleanClause.Occur.SHOULD))
                    .add(new BooleanClause(new PrefixQuery(new Term(STRING_FIELD_NAME, "foobar")),
                        BooleanClause.Occur.SHOULD))
                    .setDisableCoord(true)
                    .build(), defaultOp)
                .build(), defaultOp)
            .add(new BooleanClause(new SynonymQuery(new Term(STRING_FIELD_NAME, "last"),
                new Term(STRING_FIELD_NAME, "last")), defaultOp))
            .build();
        assertThat(query, Matchers.equalTo(expectedQuery));
    }
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
private static List<BooleanClause> getBooleanClauses(List<QueryBuilder> queryBuilders, BooleanClause.Occur occur, QueryShardContext context) throws IOException {
    List<BooleanClause> clauses = new ArrayList<>();
    for (QueryBuilder query : queryBuilders) {
        Query innerQuery = query.toQuery(context);
        if (innerQuery != null) {
            clauses.add(new BooleanClause(innerQuery, occur));
        }
    }
    return clauses;
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
/**
 * Sets the implicit operator setting, which must be
 * either {@code SHOULD} or {@code MUST}.
 */
public void setDefaultOperator(BooleanClause.Occur operator) {
  if (operator != BooleanClause.Occur.SHOULD && operator != BooleanClause.Occur.MUST) {
    throw new IllegalArgumentException("invalid operator: only SHOULD or MUST are allowed");
  }
  this.defaultOperator = operator;
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
public void setOccur(BooleanClause.Occur occur) {
    this.occur = occur;
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
public BooleanClause.Occur operator() {
    return operator;
}
 

import org.apache.lucene.search.BooleanClause; //導入方法依賴的package包/類
/**
 * Parses a query, searching on the fields specified. Use this if you need to
 * specify certain fields as required, and others as prohibited.
 * <p>
 * 
 * Usage:
 * <pre class="prettyprint">
 * <code>
 * String[] query = {&quot;query1&quot;, &quot;query2&quot;, &quot;query3&quot;};
 * String[] fields = {&quot;filename&quot;, &quot;contents&quot;, &quot;description&quot;};
 * BooleanClause.Occur[] flags = {BooleanClause.Occur.SHOULD,
 *                BooleanClause.Occur.MUST,
 *                BooleanClause.Occur.MUST_NOT};
 * MultiFieldQueryParser.parse(query, fields, flags, analyzer);
 * </code>
 * </pre>
 *<p>
 * The code above would construct a query:
 * 
 * <pre>
 * <code>
 * (filename:query1) +(contents:query2) -(description:query3)
 * </code>
 * </pre>
 * 
 * @param queries
 *          Queries string to parse
 * @param fields
 *          Fields to search on
 * @param flags
 *          Flags describing the fields
 * @param analyzer
 *          Analyzer to use
 * @throws IllegalArgumentException
 *           if the length of the queries, fields, and flags array differ
 */
public static Query parse(String[] queries, String[] fields,
    BooleanClause.Occur[] flags, Analyzer analyzer) throws QueryNodeException {
  if (!(queries.length == fields.length && queries.length == flags.length))
    throw new IllegalArgumentException(
        "queries, fields, and flags array have have different length");
  BooleanQuery bQuery = new BooleanQuery();

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

  for (int i = 0; i < fields.length; i++) {
    Query q = qp.parse(queries[i], fields[i]);

    if (q != null && // q never null, just being defensive
        (!(q instanceof BooleanQuery) || ((BooleanQuery) q).getClauses().length > 0)) {
      bQuery.add(q, flags[i]);
    }
  }
  return bQuery;
}