+++ /dev/null
-package org.apache.lucene.queryParser.standard.processors;
-
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You 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 language governing permissions and
- * limitations under the License.
- */
-
-import java.util.List;
-
-import org.apache.lucene.queryParser.core.QueryNodeException;
-import org.apache.lucene.queryParser.core.config.QueryConfigHandler;
-import org.apache.lucene.queryParser.core.nodes.FieldQueryNode;
-import org.apache.lucene.queryParser.core.nodes.FuzzyQueryNode;
-import org.apache.lucene.queryParser.core.nodes.ParametricQueryNode;
-import org.apache.lucene.queryParser.core.nodes.QueryNode;
-import org.apache.lucene.queryParser.core.processors.QueryNodeProcessorImpl;
-import org.apache.lucene.queryParser.core.util.UnescapedCharSequence;
-import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler.ConfigurationKeys;
-import org.apache.lucene.queryParser.standard.nodes.WildcardQueryNode;
-
-/**
- * This processor verifies if
- * {@link ConfigurationKeys#LOWERCASE_EXPANDED_TERMS} is defined in the
- * {@link QueryConfigHandler}. If it is and the expanded terms should be
- * lower-cased, it looks for every {@link WildcardQueryNode},
- * {@link FuzzyQueryNode} and {@link ParametricQueryNode} and lower-case its
- * term. <br/>
- *
- * @see ConfigurationKeys#LOWERCASE_EXPANDED_TERMS
- */
-public class LowercaseExpandedTermsQueryNodeProcessor extends
- QueryNodeProcessorImpl {
-
- public LowercaseExpandedTermsQueryNodeProcessor() {
- // empty constructor
- }
-
- @Override
- public QueryNode process(QueryNode queryTree) throws QueryNodeException {
- Boolean lowercaseExpandedTerms = getQueryConfigHandler().get(ConfigurationKeys.LOWERCASE_EXPANDED_TERMS);
-
- if (lowercaseExpandedTerms != null && lowercaseExpandedTerms) {
- return super.process(queryTree);
- }
-
- return queryTree;
-
- }
-
- @Override
- protected QueryNode postProcessNode(QueryNode node) throws QueryNodeException {
-
- if (node instanceof WildcardQueryNode || node instanceof FuzzyQueryNode
- || node instanceof ParametricQueryNode) {
-
- FieldQueryNode fieldNode = (FieldQueryNode) node;
- fieldNode.setText(UnescapedCharSequence.toLowerCase(fieldNode.getText()));
- }
-
- return node;
-
- }
-
- @Override
- protected QueryNode preProcessNode(QueryNode node) throws QueryNodeException {
-
- return node;
-
- }
-
- @Override
- protected List<QueryNode> setChildrenOrder(List<QueryNode> children)
- throws QueryNodeException {
-
- return children;
-
- }
-
-}