| /* |
| * 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.common.conf.TSFileDescriptor; |
| import org.apache.iotdb.tsfile.constant.TestConstant; |
| import org.apache.iotdb.tsfile.exception.write.WriteProcessException; |
| import org.apache.iotdb.tsfile.file.metadata.ChunkMetadata; |
| import org.apache.iotdb.tsfile.read.TsFileSequenceReader; |
| import org.apache.iotdb.tsfile.read.common.Chunk; |
| import org.apache.iotdb.tsfile.read.common.Path; |
| import org.apache.iotdb.tsfile.read.reader.chunk.ChunkReader; |
| import org.apache.iotdb.tsfile.utils.FilePathUtils; |
| import org.apache.iotdb.tsfile.utils.TsFileGeneratorUtils; |
| |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| |
| import static org.apache.iotdb.tsfile.common.constant.TsFileConstant.PATH_SEPARATOR; |
| |
| public class ChunkReaderTest { |
| private final String testStorageGroup = TsFileGeneratorUtils.testStorageGroup; |
| private final File SEQ_DIRS = |
| new File( |
| TestConstant.BASE_OUTPUT_PATH |
| + "data" |
| + File.separator |
| + "sequence" |
| + File.separator |
| + testStorageGroup |
| + File.separator |
| + "0" |
| + File.separator |
| + "0"); |
| |
| private File file; |
| private final int oldMaxPointNumInPage = |
| TSFileDescriptor.getInstance().getConfig().getMaxNumberOfPointsInPage(); |
| private final int deviceNum = 5; |
| private final int measurementNum = 10; |
| |
| @Before |
| public void setUp() throws IOException, WriteProcessException { |
| TSFileDescriptor.getInstance().getConfig().setMaxNumberOfPointsInPage(100); |
| if (!SEQ_DIRS.exists()) { |
| Assert.assertTrue(SEQ_DIRS.mkdirs()); |
| } |
| String fileName = |
| System.currentTimeMillis() + FilePathUtils.FILE_NAME_SEPARATOR + "0-0-0.tsfile"; |
| String filePath = SEQ_DIRS.getPath() + File.separator + fileName; |
| file = |
| TsFileGeneratorUtils.generateNonAlignedTsFile( |
| filePath, deviceNum, measurementNum, 500, 0, 0, 0, 0); |
| } |
| |
| @After |
| public void tearDown() { |
| TSFileDescriptor.getInstance().getConfig().setMaxNumberOfPointsInPage(oldMaxPointNumInPage); |
| if (file.exists()) { |
| file.delete(); |
| } |
| if (SEQ_DIRS.exists()) { |
| SEQ_DIRS.delete(); |
| } |
| } |
| |
| @Test |
| public void testAccelerateQueryByTimestamp() throws IOException { |
| try (TsFileSequenceReader tsFileSequenceReader = new TsFileSequenceReader(file.getPath())) { |
| for (int i = 0; i < deviceNum; i++) { |
| for (int j = 0; j < measurementNum; j++) { |
| List<ChunkMetadata> chunkMetadataList = |
| tsFileSequenceReader.getChunkMetadataList( |
| new Path(testStorageGroup + PATH_SEPARATOR + "d" + i, "s" + j, true)); |
| for (ChunkMetadata chunkMetadata : chunkMetadataList) { |
| Chunk chunk = tsFileSequenceReader.readMemChunk(chunkMetadata); |
| ChunkReader chunkReader = new ChunkReader(chunk); |
| chunk = tsFileSequenceReader.readMemChunk(chunkMetadata); |
| ChunkReader chunkReaderByTimestamp = new ChunkReader(chunk, 301); |
| Assert.assertEquals(5, chunkReader.loadPageReaderList().size()); |
| Assert.assertEquals(2, chunkReaderByTimestamp.loadPageReaderList().size()); |
| } |
| } |
| } |
| } |
| } |
| } |