| /* |
| * 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.reader; |
| |
| import org.apache.iotdb.tsfile.encoding.decoder.DeltaBinaryDecoder; |
| import org.apache.iotdb.tsfile.encoding.decoder.IntRleDecoder; |
| import org.apache.iotdb.tsfile.encoding.encoder.DeltaBinaryEncoder; |
| import org.apache.iotdb.tsfile.encoding.encoder.IntRleEncoder; |
| import org.apache.iotdb.tsfile.file.header.PageHeader; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| import org.apache.iotdb.tsfile.read.common.block.TsBlock; |
| import org.apache.iotdb.tsfile.read.filter.factory.TimeFilterApi; |
| import org.apache.iotdb.tsfile.read.filter.factory.ValueFilterApi; |
| import org.apache.iotdb.tsfile.read.reader.page.PageReader; |
| import org.apache.iotdb.tsfile.read.reader.series.PaginationController; |
| import org.apache.iotdb.tsfile.write.page.PageWriter; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| public class PageReaderPushDownTest { |
| |
| private static final PageHeader testPageHeader; |
| private static ByteBuffer testPageData; |
| |
| static { |
| PageWriter pageWriter = new PageWriter(); |
| pageWriter.setTimeEncoder(new DeltaBinaryEncoder.LongDeltaEncoder()); |
| pageWriter.setValueEncoder(new IntRleEncoder()); |
| pageWriter.initStatistics(TSDataType.INT32); |
| |
| for (int i = 0; i < 100; i++) { |
| pageWriter.write(i, i); |
| } |
| |
| testPageHeader = new PageHeader(0, 0, pageWriter.getStatistics()); |
| |
| testPageData = null; |
| try { |
| testPageData = ByteBuffer.wrap(pageWriter.getUncompressedBytes().array()); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| Assert.fail(e.getMessage()); |
| } |
| } |
| |
| private IPageReader generatePageReader() { |
| testPageData.position(0); |
| return new PageReader( |
| testPageHeader, |
| testPageData, |
| TSDataType.INT32, |
| new IntRleDecoder(), |
| new DeltaBinaryDecoder.LongDeltaDecoder()); |
| } |
| |
| @Test |
| public void testNullFilter() throws IOException { |
| IPageReader pageReader = generatePageReader(); |
| |
| TsBlock tsBlock = pageReader.getAllSatisfiedData(); |
| |
| Assert.assertEquals(100, tsBlock.getPositionCount()); |
| } |
| |
| @Test |
| public void testNullFilterAndLimitOffset() throws IOException { |
| IPageReader pageReader = generatePageReader(); |
| pageReader.setLimitOffset(new PaginationController(10, 10)); |
| |
| TsBlock tsBlock = pageReader.getAllSatisfiedData(); |
| |
| Assert.assertEquals(10, tsBlock.getPositionCount()); |
| Assert.assertEquals(10, tsBlock.getTimeByIndex(0)); |
| Assert.assertEquals(19, tsBlock.getTimeByIndex(9)); |
| } |
| |
| @Test |
| public void testFilterAllSatisfy() throws IOException { |
| IPageReader pageReader = generatePageReader(); |
| pageReader.addRecordFilter(TimeFilterApi.gtEq(0)); |
| |
| TsBlock tsBlock = pageReader.getAllSatisfiedData(); |
| |
| Assert.assertEquals(100, tsBlock.getPositionCount()); |
| } |
| |
| @Test |
| public void testFilterAllSatisfyAndLimitOffset() throws IOException { |
| IPageReader pageReader = generatePageReader(); |
| pageReader.addRecordFilter(TimeFilterApi.gtEq(0)); |
| pageReader.setLimitOffset(new PaginationController(10, 10)); |
| |
| TsBlock tsBlock = pageReader.getAllSatisfiedData(); |
| |
| Assert.assertEquals(10, tsBlock.getPositionCount()); |
| Assert.assertEquals(10, tsBlock.getTimeByIndex(0)); |
| Assert.assertEquals(19, tsBlock.getTimeByIndex(9)); |
| } |
| |
| @Test |
| public void testFilter() throws IOException { |
| IPageReader pageReader = generatePageReader(); |
| pageReader.addRecordFilter(TimeFilterApi.gtEq(50)); |
| pageReader.addRecordFilter(ValueFilterApi.lt(80)); |
| |
| TsBlock tsBlock = pageReader.getAllSatisfiedData(); |
| |
| Assert.assertEquals(30, tsBlock.getPositionCount()); |
| } |
| |
| @Test |
| public void testFilterAndLimitOffset() throws IOException { |
| IPageReader pageReader = generatePageReader(); |
| pageReader.addRecordFilter(TimeFilterApi.gtEq(50)); |
| pageReader.addRecordFilter(ValueFilterApi.lt(80)); |
| pageReader.setLimitOffset(new PaginationController(10, 10)); |
| |
| TsBlock tsBlock = pageReader.getAllSatisfiedData(); |
| |
| Assert.assertEquals(10, tsBlock.getPositionCount()); |
| Assert.assertEquals(60, tsBlock.getTimeByIndex(0)); |
| Assert.assertEquals(69, tsBlock.getTimeByIndex(9)); |
| } |
| } |