| /* |
| * 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.db.storageengine.dataregion.flush; |
| |
| import org.apache.iotdb.db.conf.IoTDBConfig; |
| import org.apache.iotdb.db.conf.IoTDBDescriptor; |
| import org.apache.iotdb.db.utils.EnvironmentUtils; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.tsfile.utils.FilePathUtils; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.util.Locale; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| public class CompressionRatioTest { |
| |
| private static final IoTDBConfig CONFIG = IoTDBDescriptor.getInstance().getConfig(); |
| |
| private CompressionRatio compressionRatio = CompressionRatio.getInstance(); |
| |
| private static final String directory = |
| FilePathUtils.regularizePath(CONFIG.getSystemDir()) + CompressionRatio.COMPRESSION_RATIO_DIR; |
| |
| @Before |
| public void setUp() throws Exception { |
| EnvironmentUtils.envSetUp(); |
| FileUtils.forceMkdir(new File(directory)); |
| compressionRatio.reset(); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| EnvironmentUtils.cleanEnv(); |
| } |
| |
| @Test |
| public void testCompressionRatio() throws IOException { |
| long totalMemorySize = 10; |
| long totalDiskSize = 5; |
| |
| for (int i = 0; i < 5; i++) { |
| this.compressionRatio.updateRatio(10, 5); |
| if (!new File( |
| directory, |
| String.format( |
| Locale.ENGLISH, |
| CompressionRatio.RATIO_FILE_PATH_FORMAT, |
| totalMemorySize, |
| totalDiskSize)) |
| .exists()) { |
| fail(); |
| } |
| assertEquals(2, this.compressionRatio.getRatio(), 0.1); |
| totalMemorySize += 10; |
| totalDiskSize += 5; |
| } |
| } |
| |
| @Test |
| public void testRestore() throws IOException { |
| Files.createFile( |
| new File( |
| directory, |
| String.format(Locale.ENGLISH, CompressionRatio.RATIO_FILE_PATH_FORMAT, 1000, 100)) |
| .toPath()); |
| Files.createFile( |
| new File( |
| directory, |
| String.format(Locale.ENGLISH, CompressionRatio.RATIO_FILE_PATH_FORMAT, 1000, 200)) |
| .toPath()); |
| Files.createFile( |
| new File( |
| directory, |
| String.format(Locale.ENGLISH, CompressionRatio.RATIO_FILE_PATH_FORMAT, 1000, 500)) |
| .toPath()); |
| |
| compressionRatio.restore(); |
| |
| // if multiple files exist in the system due to some exceptions, restore the file with the |
| // largest diskSize to the memory |
| assertEquals(2, compressionRatio.getRatio(), 0.1); |
| } |
| } |