package org.apache.lucene.queryparser.flexible.standard.nodes;
/*
* 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 org.apache.lucene.document.FieldType.NumericType;
import org.apache.lucene.queryparser.flexible.core.QueryNodeException;
import org.apache.lucene.queryparser.flexible.core.messages.QueryParserMessages;
import org.apache.lucene.queryparser.flexible.core.nodes.FieldQueryNode;
import org.apache.lucene.queryparser.flexible.messages.MessageImpl;
import org.apache.lucene.queryparser.flexible.standard.config.NumericConfig;
/**
* This query node represents a range query composed by {@link NumericQueryNode}
* bounds, which means the bound values are {@link Number}s.
*
* @see NumericQueryNode
* @see AbstractRangeQueryNode
*/
public class NumericRangeQueryNode extends
AbstractRangeQueryNode<NumericQueryNode> {
public NumericConfig numericConfig;
/**
* Constructs a {@link NumericRangeQueryNode} object using the given
* {@link NumericQueryNode} as its bounds and {@link NumericConfig}.
*
* @param lower the lower bound
* @param upper the upper bound
* @param lowerInclusive <code>true</code> if the lower bound is inclusive, otherwise, <code>false</code>
* @param upperInclusive <code>true</code> if the upper bound is inclusive, otherwise, <code>false</code>
* @param numericConfig the {@link NumericConfig} that represents associated with the upper and lower bounds
*
* @see #setBounds(NumericQueryNode, NumericQueryNode, boolean, boolean, NumericConfig)
*/
public NumericRangeQueryNode(NumericQueryNode lower, NumericQueryNode upper,
boolean lowerInclusive, boolean upperInclusive, NumericConfig numericConfig) throws QueryNodeException {
setBounds(lower, upper, lowerInclusive, upperInclusive, numericConfig);
}
private static NumericType getNumericDataType(Number number) throws QueryNodeException {
if (number instanceof Long) {
return NumericType.LONG;
} else if (number instanceof Integer) {
return NumericType.INT;
} else if (number instanceof Double) {
return NumericType.DOUBLE;
} else if (number instanceof Float) {
return NumericType.FLOAT;
} else {
throw new QueryNodeException(
new MessageImpl(
QueryParserMessages.NUMBER_CLASS_NOT_SUPPORTED_BY_NUMERIC_RANGE_QUERY,
number.getClass()));
}
}
/**
* Sets the upper and lower bounds of this range query node and the
* {@link NumericConfig} associated with these bounds.
*
* @param lower the lower bound
* @param upper the upper bound
* @param lowerInclusive <code>true</code> if the lower bound is inclusive, otherwise, <code>false</code>
* @param upperInclusive <code>true</code> if the upper bound is inclusive, otherwise, <code>false</code>
* @param numericConfig the {@link NumericConfig} that represents associated with the upper and lower bounds
*
*/
public void setBounds(NumericQueryNode lower, NumericQueryNode upper,
boolean lowerInclusive, boolean upperInclusive, NumericConfig numericConfig) throws QueryNodeException {
if (numericConfig == null) {
throw new IllegalArgumentException("numericConfig cannot be null!");
}
NumericType lowerNumberType, upperNumberType;
if (lower != null && lower.getValue() != null) {
lowerNumberType = getNumericDataType(lower.getValue());
} else {
lowerNumberType = null;
}
if (upper != null && upper.getValue() != null) {
upperNumberType = getNumericDataType(upper.getValue());
} else {
upperNumberType = null;
}
if (lowerNumberType != null
&& !lowerNumberType.equals(numericConfig.getType())) {
throw new IllegalArgumentException(
"lower value's type should be the same as numericConfig type: "
+ lowerNumberType + " != " + numericConfig.getType());
}
if (upperNumberType != null
&& !upperNumberType.equals(numericConfig.getType())) {
throw new IllegalArgumentException(
"upper value's type should be the same as numericConfig type: "
+ upperNumberType + " != " + numericConfig.getType());
}
super.setBounds(lower, upper, lowerInclusive, upperInclusive);
this.numericConfig = numericConfig;
}
/**
* Returns the {@link NumericConfig} associated with the lower and upper bounds.
*
* @return the {@link NumericConfig} associated with the lower and upper bounds
*/
public NumericConfig getNumericConfig() {
return this.numericConfig;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder("<numericRange lowerInclusive='");
sb.append(isLowerInclusive()).append("' upperInclusive='").append(
isUpperInclusive()).append(
"' precisionStep='" + numericConfig.getPrecisionStep()).append(
"' type='" + numericConfig.getType()).append("'>\n");
sb.append(getLowerBound()).append('\n');
sb.append(getUpperBound()).append('\n');
sb.append("</numericRange>");
return sb.toString();
}
}