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package org.apache.lucene.queryParser.standard.processors;
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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import java.text.NumberFormat;
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import java.text.ParseException;
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import java.util.List;
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import org.apache.lucene.messages.MessageImpl;
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import org.apache.lucene.queryParser.core.QueryNodeException;
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import org.apache.lucene.queryParser.core.QueryNodeParseException;
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import org.apache.lucene.queryParser.core.config.FieldConfig;
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import org.apache.lucene.queryParser.core.config.QueryConfigHandler;
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import org.apache.lucene.queryParser.core.messages.QueryParserMessages;
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import org.apache.lucene.queryParser.core.nodes.FieldQueryNode;
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import org.apache.lucene.queryParser.core.nodes.ParametricQueryNode;
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import org.apache.lucene.queryParser.core.nodes.QueryNode;
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import org.apache.lucene.queryParser.core.processors.QueryNodeProcessorImpl;
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import org.apache.lucene.queryParser.standard.config.NumericConfig;
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import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler.ConfigurationKeys;
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import org.apache.lucene.queryParser.standard.nodes.NumericQueryNode;
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import org.apache.lucene.queryParser.standard.nodes.NumericRangeQueryNode;
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* This processor is used to convert {@link FieldQueryNode}s to
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* {@link NumericRangeQueryNode}s. It looks for
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* {@link ConfigurationKeys#NUMERIC_CONFIG} set in the {@link FieldConfig} of
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* every {@link FieldQueryNode} found. If
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* {@link ConfigurationKeys#NUMERIC_CONFIG} is found, it considers that
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* {@link FieldQueryNode} to be a numeric query and convert it to
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* {@link NumericRangeQueryNode} with upper and lower inclusive and lower and
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* upper equals to the value represented by the {@link FieldQueryNode} converted
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* to {@link Number}. It means that <b>field:1</b> is converted to <b>field:[1 TO
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* Note that {@link ParametricQueryNode}s are ignored, even being a
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* {@link FieldQueryNode}.
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* @see ConfigurationKeys#NUMERIC_CONFIG
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* @see NumericQueryNode
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public class NumericQueryNodeProcessor extends QueryNodeProcessorImpl {
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* Constructs a {@link NumericQueryNodeProcessor} object.
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public NumericQueryNodeProcessor() {
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protected QueryNode postProcessNode(QueryNode node) throws QueryNodeException {
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if (node instanceof FieldQueryNode
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&& !(node instanceof ParametricQueryNode)) {
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QueryConfigHandler config = getQueryConfigHandler();
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FieldQueryNode fieldNode = (FieldQueryNode) node;
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FieldConfig fieldConfig = config.getFieldConfig(fieldNode
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if (fieldConfig != null) {
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NumericConfig numericConfig = fieldConfig
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.get(ConfigurationKeys.NUMERIC_CONFIG);
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if (numericConfig != null) {
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NumberFormat numberFormat = numericConfig.getNumberFormat();
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number = numberFormat.parse(fieldNode.getTextAsString());
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} catch (ParseException e) {
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throw new QueryNodeParseException(new MessageImpl(
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QueryParserMessages.COULD_NOT_PARSE_NUMBER, fieldNode
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.getTextAsString(), numberFormat.getClass()
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.getCanonicalName()), e);
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switch (numericConfig.getType()) {
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number = number.longValue();
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number = number.intValue();
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number = number.doubleValue();
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number = number.floatValue();
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NumericQueryNode lowerNode = new NumericQueryNode(fieldNode
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.getField(), number, numberFormat);
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NumericQueryNode upperNode = new NumericQueryNode(fieldNode
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.getField(), number, numberFormat);
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return new NumericRangeQueryNode(lowerNode, upperNode, true, true,
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protected QueryNode preProcessNode(QueryNode node) throws QueryNodeException {
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protected List<QueryNode> setChildrenOrder(List<QueryNode> children)
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throws QueryNodeException {