| /* |
| * 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.pipe.resource; |
| |
| import org.apache.iotdb.commons.conf.IoTDBConstant; |
| import org.apache.iotdb.commons.utils.FileUtils; |
| import org.apache.iotdb.db.pipe.resource.wal.hardlink.PipeWALHardlinkResourceManager; |
| |
| 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.nio.file.Files; |
| |
| public class PipeWALHardlinkResourceManagerTest { |
| private static final String ROOT_DIR = "target" + File.separator + "PipeWALHolderTest"; |
| |
| private static final String WAL_DIR = ROOT_DIR + File.separator + IoTDBConstant.WAL_FOLDER_NAME; |
| |
| private static final String WAL_NAME = WAL_DIR + File.separator + "test.wal"; |
| |
| private PipeWALHardlinkResourceManager pipeWALHardlinkResourceManager; |
| |
| @Before |
| public void setUp() throws Exception { |
| pipeWALHardlinkResourceManager = new PipeWALHardlinkResourceManager(); |
| |
| createWAL(); |
| } |
| |
| private void createWAL() { |
| File file = new File(WAL_NAME); |
| if (file.exists()) { |
| boolean ignored = file.delete(); |
| } |
| |
| try { |
| file.getParentFile().mkdirs(); |
| file.createNewFile(); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| File pipeFolder = new File(ROOT_DIR); |
| if (pipeFolder.exists()) { |
| FileUtils.deleteFileOrDirectory(pipeFolder); |
| } |
| } |
| |
| @Test |
| public void testIncreaseTsfile() throws IOException { |
| File originWALFile = new File(WAL_NAME); |
| Assert.assertEquals(0, pipeWALHardlinkResourceManager.getFileReferenceCount(originWALFile)); |
| |
| File pipeWALFile = pipeWALHardlinkResourceManager.increaseFileReference(originWALFile); |
| Assert.assertEquals(1, pipeWALHardlinkResourceManager.getFileReferenceCount(pipeWALFile)); |
| Assert.assertTrue(Files.exists(originWALFile.toPath())); |
| Assert.assertTrue(Files.exists(pipeWALFile.toPath())); |
| |
| // test use hardlinkTsFile to increase reference counts |
| pipeWALHardlinkResourceManager.increaseFileReference(pipeWALFile); |
| Assert.assertEquals(2, pipeWALHardlinkResourceManager.getFileReferenceCount(pipeWALFile)); |
| Assert.assertTrue(Files.exists(originWALFile.toPath())); |
| Assert.assertTrue(Files.exists(pipeWALFile.toPath())); |
| } |
| |
| @Test |
| public void testDecreaseTsfile() throws IOException { |
| File originFile = new File(WAL_NAME); |
| |
| pipeWALHardlinkResourceManager.decreaseFileReference(originFile); |
| Assert.assertEquals(0, pipeWALHardlinkResourceManager.getFileReferenceCount(originFile)); |
| |
| File pipeWALFile = pipeWALHardlinkResourceManager.increaseFileReference(originFile); |
| Assert.assertEquals(1, pipeWALHardlinkResourceManager.getFileReferenceCount(pipeWALFile)); |
| Assert.assertTrue(Files.exists(pipeWALFile.toPath())); |
| Assert.assertTrue(Files.exists(pipeWALFile.toPath())); |
| |
| Assert.assertTrue(originFile.delete()); |
| Assert.assertFalse(Files.exists(originFile.toPath())); |
| |
| Assert.assertEquals(1, pipeWALHardlinkResourceManager.getFileReferenceCount(pipeWALFile)); |
| Assert.assertFalse(Files.exists(originFile.toPath())); |
| Assert.assertTrue(Files.exists(pipeWALFile.toPath())); |
| |
| pipeWALHardlinkResourceManager.decreaseFileReference(pipeWALFile); |
| Assert.assertEquals(0, pipeWALHardlinkResourceManager.getFileReferenceCount(pipeWALFile)); |
| Assert.assertFalse(Files.exists(originFile.toPath())); |
| Assert.assertFalse(Files.exists(pipeWALFile.toPath())); |
| } |
| } |