| /** |
| * 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 |
| * <p/> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p/> |
| * 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. |
| */ |
| |
| package org.apache.atlas.catalog.query; |
| |
| import org.apache.atlas.catalog.definition.ResourceDefinition; |
| import org.apache.lucene.search.TermRangeQuery; |
| import org.apache.lucene.util.BytesRef; |
| |
| /** |
| * Query expression which evaluates whether a property value is within a range. |
| */ |
| //todo: for month and year which are expressed via a single digit, must ensure that |
| //todo: a leading '0' is provided. For example, "2016-1-5" must be converted to "2016-01-05". |
| //todo: Month and day values aren't currently validated. |
| public class TermRangeQueryExpression extends BaseQueryExpression { |
| private final BytesRef m_lowerTerm; |
| private final BytesRef m_upperTerm; |
| private final boolean m_lowerInclusive; |
| private final boolean m_upperInclusive; |
| |
| public TermRangeQueryExpression(TermRangeQuery query, ResourceDefinition resourceDefinition) { |
| super(query.getField(), null, resourceDefinition); |
| m_lowerTerm = query.getLowerTerm(); |
| m_upperTerm = query.getUpperTerm(); |
| m_lowerInclusive = query.includesLower(); |
| m_upperInclusive = query.includesUpper(); |
| } |
| |
| @Override |
| public boolean evaluate(Object value) { |
| BytesRef valueBytes = new BytesRef(String.valueOf(value)); |
| return compareLowerBound(valueBytes) && compareUpperBound(valueBytes); |
| } |
| |
| private boolean compareLowerBound(BytesRef valueBytes) { |
| return m_lowerTerm == null || (m_lowerInclusive ? valueBytes.compareTo(m_lowerTerm) > 0 : |
| valueBytes.compareTo(m_lowerTerm) >= 0); |
| } |
| |
| private boolean compareUpperBound(BytesRef valueBytes) { |
| return m_upperTerm == null || (m_upperInclusive ? valueBytes.compareTo(m_upperTerm) < 0 : |
| valueBytes.compareTo(m_upperTerm) <= 0); |
| } |
| |
| } |