+++ /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.text.NumberFormat;
-import java.text.ParseException;
-import java.util.List;
-
-import org.apache.lucene.messages.MessageImpl;
-import org.apache.lucene.queryParser.core.QueryNodeException;
-import org.apache.lucene.queryParser.core.QueryNodeParseException;
-import org.apache.lucene.queryParser.core.config.FieldConfig;
-import org.apache.lucene.queryParser.core.config.QueryConfigHandler;
-import org.apache.lucene.queryParser.core.messages.QueryParserMessages;
-import org.apache.lucene.queryParser.core.nodes.FieldQueryNode;
-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.standard.config.NumericConfig;
-import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler.ConfigurationKeys;
-import org.apache.lucene.queryParser.standard.nodes.NumericQueryNode;
-import org.apache.lucene.queryParser.standard.nodes.NumericRangeQueryNode;
-
-/**
- * This processor is used to convert {@link FieldQueryNode}s to
- * {@link NumericRangeQueryNode}s. It looks for
- * {@link ConfigurationKeys#NUMERIC_CONFIG} set in the {@link FieldConfig} of
- * every {@link FieldQueryNode} found. If
- * {@link ConfigurationKeys#NUMERIC_CONFIG} is found, it considers that
- * {@link FieldQueryNode} to be a numeric query and convert it to
- * {@link NumericRangeQueryNode} with upper and lower inclusive and lower and
- * upper equals to the value represented by the {@link FieldQueryNode} converted
- * to {@link Number}. It means that <b>field:1</b> is converted to <b>field:[1 TO
- * 1]</b>. <br/>
- * <br/>
- * Note that {@link ParametricQueryNode}s are ignored, even being a
- * {@link FieldQueryNode}.
- *
- * @see ConfigurationKeys#NUMERIC_CONFIG
- * @see FieldQueryNode
- * @see NumericConfig
- * @see NumericQueryNode
- */
-public class NumericQueryNodeProcessor extends QueryNodeProcessorImpl {
-
- /**
- * Constructs a {@link NumericQueryNodeProcessor} object.
- */
- public NumericQueryNodeProcessor() {
- // empty constructor
- }
-
- @Override
- protected QueryNode postProcessNode(QueryNode node) throws QueryNodeException {
-
- if (node instanceof FieldQueryNode
- && !(node instanceof ParametricQueryNode)) {
-
- QueryConfigHandler config = getQueryConfigHandler();
-
- if (config != null) {
- FieldQueryNode fieldNode = (FieldQueryNode) node;
- FieldConfig fieldConfig = config.getFieldConfig(fieldNode
- .getFieldAsString());
-
- if (fieldConfig != null) {
- NumericConfig numericConfig = fieldConfig
- .get(ConfigurationKeys.NUMERIC_CONFIG);
-
- if (numericConfig != null) {
-
- NumberFormat numberFormat = numericConfig.getNumberFormat();
- Number number;
-
- try {
- number = numberFormat.parse(fieldNode.getTextAsString());
-
- } catch (ParseException e) {
- throw new QueryNodeParseException(new MessageImpl(
- QueryParserMessages.COULD_NOT_PARSE_NUMBER, fieldNode
- .getTextAsString(), numberFormat.getClass()
- .getCanonicalName()), e);
- }
-
- switch (numericConfig.getType()) {
- case LONG:
- number = number.longValue();
- break;
- case INT:
- number = number.intValue();
- break;
- case DOUBLE:
- number = number.doubleValue();
- break;
- case FLOAT:
- number = number.floatValue();
- }
-
- NumericQueryNode lowerNode = new NumericQueryNode(fieldNode
- .getField(), number, numberFormat);
- NumericQueryNode upperNode = new NumericQueryNode(fieldNode
- .getField(), number, numberFormat);
-
- return new NumericRangeQueryNode(lowerNode, upperNode, true, true,
- numericConfig);
-
- }
-
- }
-
- }
-
- }
-
- return node;
-
- }
-
- @Override
- protected QueryNode preProcessNode(QueryNode node) throws QueryNodeException {
- return node;
- }
-
- @Override
- protected List<QueryNode> setChildrenOrder(List<QueryNode> children)
- throws QueryNodeException {
- return children;
- }
-
-}
fnp / pylucene.git / blobdiff