| /* |
| * 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; |
| |
| import org.apache.iotdb.tsfile.exception.filter.QueryFilterOptimizationException; |
| import org.apache.iotdb.tsfile.file.metadata.ChunkMetadata; |
| import org.apache.iotdb.tsfile.read.common.Path; |
| import org.apache.iotdb.tsfile.read.common.RowRecord; |
| import org.apache.iotdb.tsfile.read.common.TimeRange; |
| import org.apache.iotdb.tsfile.read.expression.ExpressionType; |
| import org.apache.iotdb.tsfile.read.expression.IExpression; |
| import org.apache.iotdb.tsfile.read.expression.QueryExpression; |
| import org.apache.iotdb.tsfile.read.expression.impl.BinaryExpression; |
| import org.apache.iotdb.tsfile.read.expression.impl.GlobalTimeExpression; |
| import org.apache.iotdb.tsfile.read.expression.impl.SingleSeriesExpression; |
| import org.apache.iotdb.tsfile.read.expression.util.ExpressionOptimizer; |
| import org.apache.iotdb.tsfile.read.filter.basic.Filter; |
| import org.apache.iotdb.tsfile.read.filter.factory.TimeFilterApi; |
| import org.apache.iotdb.tsfile.read.filter.factory.ValueFilterApi; |
| import org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet; |
| import org.apache.iotdb.tsfile.utils.TsFileGeneratorForTest; |
| |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /* |
| This test is designed for the TsFileExecutor's execute(queryExpression, params) function. |
| |
| The test target here is the logic of converting the query partition constraint to an additional time filter. |
| |
| Note that the correctness of the constructed additional time filter, which is guaranteed and tested in |
| IMetadataQuerierByFileImplTest and TimeRangeTest, is not the test focus here. |
| |
| */ |
| public class ReadInPartitionTest { |
| |
| private static final String FILE_PATH = TsFileGeneratorForTest.outputDataFile; |
| private static TsFileReader roTsFile = null; |
| private ArrayList<TimeRange> d1s6timeRangeList = new ArrayList<>(); |
| private ArrayList<TimeRange> d2s1timeRangeList = new ArrayList<>(); |
| private ArrayList<long[]> d1chunkGroupMetaDataOffsetList = new ArrayList<>(); |
| |
| @Before |
| public void before() throws IOException { |
| TsFileGeneratorForTest.generateFile(10000, 1024, 100); |
| TsFileSequenceReader reader = new TsFileSequenceReader(FILE_PATH); |
| roTsFile = new TsFileReader(reader); |
| |
| // Because the size of the generated chunkGroupMetaData may differ under |
| // different test environments, |
| // we get metadata from the real-time generated TsFile instead of using a fixed |
| // parameter setting. |
| List<ChunkMetadata> d1s6List = reader.getChunkMetadataList(new Path("d1", "s6", true)); |
| for (ChunkMetadata chunkMetaData : d1s6List) { |
| // get a series of [startTime, endTime] of d1.s6 from the chunkGroupMetaData of |
| // d1 |
| d1s6timeRangeList.add( |
| new TimeRange(chunkMetaData.getStartTime(), chunkMetaData.getEndTime())); |
| long[] startEndOffsets = new long[2]; |
| startEndOffsets[0] = chunkMetaData.getOffsetOfChunkHeader(); |
| startEndOffsets[1] = |
| chunkMetaData.getOffsetOfChunkHeader() |
| + chunkMetaData.getMeasurementUid().getBytes().length |
| + Long.BYTES |
| + Short.BYTES |
| + chunkMetaData.getStatistics().getSerializedSize(); |
| d1chunkGroupMetaDataOffsetList.add(startEndOffsets); |
| } |
| |
| List<ChunkMetadata> d2s1List = reader.getChunkMetadataList(new Path("d2", "s1", true)); |
| for (ChunkMetadata chunkMetaData : d2s1List) { |
| d2s1timeRangeList.add( |
| new TimeRange(chunkMetaData.getStartTime(), chunkMetaData.getEndTime())); |
| } |
| } |
| |
| @After |
| public void after() throws IOException { |
| roTsFile.close(); |
| TsFileGeneratorForTest.after(); |
| } |
| |
| @Test |
| public void test0() throws IOException { |
| ArrayList<Path> paths = new ArrayList<>(); |
| paths.add(new Path("d1", "s6", true)); |
| paths.add(new Path("d2", "s1", true)); |
| QueryExpression queryExpression = QueryExpression.create(paths, null); |
| |
| QueryDataSet queryDataSet = roTsFile.query(queryExpression, 0L, 0L); |
| |
| // test the transformed expression |
| Assert.assertNull(queryExpression.getExpression()); |
| |
| // test the equivalence of the query result |
| Assert.assertFalse(queryDataSet.hasNext()); |
| } |
| |
| @Test |
| public void test1() throws IOException, QueryFilterOptimizationException { |
| ArrayList<Path> paths = new ArrayList<>(); |
| paths.add(new Path("d1", "s6", true)); |
| paths.add(new Path("d2", "s1", true)); |
| QueryExpression queryExpression = QueryExpression.create(paths, null); |
| |
| QueryDataSet queryDataSet = |
| roTsFile.query( |
| queryExpression, |
| d1chunkGroupMetaDataOffsetList.get(0)[0], |
| d1chunkGroupMetaDataOffsetList.get(0)[1]); |
| // get the transformed expression |
| IExpression transformedExpression = queryExpression.getExpression(); |
| |
| // test the transformed expression |
| Assert.assertEquals(ExpressionType.GLOBAL_TIME, transformedExpression.getType()); |
| |
| IExpression expectedTimeExpression = d1s6timeRangeList.get(0).getExpression(); |
| String expected = |
| ExpressionOptimizer.getInstance() |
| .optimize(expectedTimeExpression, queryExpression.getSelectedSeries()) |
| .toString(); |
| Assert.assertEquals(expected, transformedExpression.toString()); |
| |
| // test the equivalence of the query result: |
| QueryDataSet queryDataSet_eq = roTsFile.query(queryExpression); |
| while (queryDataSet.hasNext() && queryDataSet_eq.hasNext()) { |
| RowRecord r = queryDataSet.next(); |
| RowRecord r2 = queryDataSet_eq.next(); |
| Assert.assertEquals(r2.toString(), r.toString()); |
| } |
| Assert.assertEquals(queryDataSet_eq.hasNext(), queryDataSet.hasNext()); |
| } |
| |
| @Test |
| public void test2() throws IOException, QueryFilterOptimizationException { |
| ArrayList<Path> paths = new ArrayList<>(); |
| paths.add(new Path("d1", "s6", true)); |
| paths.add(new Path("d2", "s1", true)); |
| IExpression expression = new GlobalTimeExpression(TimeFilterApi.gt(50L)); |
| QueryExpression queryExpression = QueryExpression.create(paths, expression); |
| |
| QueryDataSet queryDataSet = |
| roTsFile.query( |
| queryExpression, |
| d1chunkGroupMetaDataOffsetList.get(0)[0], |
| d1chunkGroupMetaDataOffsetList.get(0)[1]); |
| // get the transformed expression |
| IExpression transformedExpression = queryExpression.getExpression(); |
| |
| // test the transformed expression |
| Assert.assertEquals(ExpressionType.GLOBAL_TIME, transformedExpression.getType()); |
| |
| IExpression expectedTimeExpression = |
| BinaryExpression.and(expression, d1s6timeRangeList.get(0).getExpression()); |
| String expected = |
| ExpressionOptimizer.getInstance() |
| .optimize(expectedTimeExpression, queryExpression.getSelectedSeries()) |
| .toString(); |
| Assert.assertEquals(expected, transformedExpression.toString()); |
| |
| // test the equivalence of the query result: |
| QueryDataSet queryDataSet_eq = roTsFile.query(queryExpression); |
| while (queryDataSet.hasNext() && queryDataSet_eq.hasNext()) { |
| RowRecord r = queryDataSet.next(); |
| RowRecord r2 = queryDataSet_eq.next(); |
| Assert.assertEquals(r2.toString(), r.toString()); |
| } |
| Assert.assertEquals(queryDataSet_eq.hasNext(), queryDataSet.hasNext()); |
| } |
| |
| @Test |
| public void test3() throws IOException, QueryFilterOptimizationException { |
| ArrayList<Path> paths = new ArrayList<>(); |
| paths.add(new Path("d1", "s6", true)); |
| paths.add(new Path("d2", "s1", true)); |
| Filter filter = ValueFilterApi.gt(10L); |
| IExpression expression = new SingleSeriesExpression(new Path("d1", "s3", true), filter); |
| QueryExpression queryExpression = QueryExpression.create(paths, expression); |
| |
| QueryDataSet queryDataSet = |
| roTsFile.query( |
| queryExpression, |
| d1chunkGroupMetaDataOffsetList.get(0)[0], |
| d1chunkGroupMetaDataOffsetList.get(0)[1]); |
| // get the transformed expression |
| IExpression transformedExpression = queryExpression.getExpression(); |
| |
| // test the transformed expression |
| Assert.assertEquals(ExpressionType.SERIES, transformedExpression.getType()); |
| |
| IExpression expectedTimeExpression = |
| BinaryExpression.and(expression, d1s6timeRangeList.get(0).getExpression()); |
| String expected = |
| ExpressionOptimizer.getInstance() |
| .optimize(expectedTimeExpression, queryExpression.getSelectedSeries()) |
| .toString(); |
| Assert.assertEquals(expected, transformedExpression.toString()); |
| |
| // test the equivalence of the query result: |
| QueryDataSet queryDataSet_eq = roTsFile.query(queryExpression); |
| while (queryDataSet.hasNext() && queryDataSet_eq.hasNext()) { |
| RowRecord r = queryDataSet.next(); |
| RowRecord r2 = queryDataSet_eq.next(); |
| Assert.assertEquals(r2.toString(), r.toString()); |
| } |
| Assert.assertEquals(queryDataSet_eq.hasNext(), queryDataSet.hasNext()); |
| } |
| } |