| /* |
| * 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. |
| */ |
| |
| package org.apache.iotdb.tsfile.read.filter; |
| |
| import org.apache.iotdb.tsfile.file.metadata.IMetadata; |
| import org.apache.iotdb.tsfile.file.metadata.statistics.Statistics; |
| import org.apache.iotdb.tsfile.file.metadata.statistics.TimeStatistics; |
| |
| import java.io.Serializable; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Optional; |
| |
| public class FilterTestUtil { |
| |
| private FilterTestUtil() { |
| // util class |
| } |
| |
| public static IMetadata newMetadata(Statistics statistics) { |
| return new IMetadata() { |
| @Override |
| public Statistics getStatistics() { |
| return statistics; |
| } |
| |
| @Override |
| public Statistics getTimeStatistics() { |
| return statistics; |
| } |
| |
| @Override |
| public Optional<Statistics<? extends Serializable>> getMeasurementStatistics( |
| int measurementIndex) { |
| return Optional.ofNullable(statistics); |
| } |
| |
| @Override |
| public boolean hasNullValue(int measurementIndex) { |
| return false; |
| } |
| }; |
| } |
| |
| public static IMetadata newAlignedMetadata( |
| TimeStatistics timeStatistics, Statistics<? extends Serializable> valueStatistics) { |
| return new AlignedMetadata(timeStatistics, Collections.singletonList(valueStatistics)); |
| } |
| |
| private static class AlignedMetadata implements IMetadata { |
| |
| private final TimeStatistics timeStatistics; |
| private final List<Statistics<? extends Serializable>> statisticsList; |
| |
| public AlignedMetadata( |
| TimeStatistics timeStatistics, List<Statistics<? extends Serializable>> statisticsList) { |
| this.timeStatistics = timeStatistics; |
| this.statisticsList = statisticsList; |
| } |
| |
| @Override |
| public Statistics<? extends Serializable> getStatistics() { |
| if (statisticsList.size() == 1 && statisticsList.get(0) != null) { |
| return statisticsList.get(0); |
| } |
| return timeStatistics; |
| } |
| |
| @Override |
| public Statistics<? extends Serializable> getTimeStatistics() { |
| return timeStatistics; |
| } |
| |
| @Override |
| public Optional<Statistics<? extends Serializable>> getMeasurementStatistics( |
| int measurementIndex) { |
| return Optional.ofNullable(statisticsList.get(measurementIndex)); |
| } |
| |
| @Override |
| public boolean hasNullValue(int measurementIndex) { |
| long rowCount = getTimeStatistics().getCount(); |
| Optional<Statistics<? extends Serializable>> statistics = |
| getMeasurementStatistics(measurementIndex); |
| return statistics.map(stat -> stat.hasNullValue(rowCount)).orElse(true); |
| } |
| } |
| } |