| /** |
| * 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.hadoop.yarn.server.nodemanager; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.ListIterator; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.CommonConfigurationKeys; |
| import org.apache.hadoop.fs.FileContext; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileUtil; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.permission.FsPermission; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.server.nodemanager.DirectoryCollection.DirsChangeListener; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestDirectoryCollection { |
| |
| private static final File testDir = new File("target", |
| TestDirectoryCollection.class.getName()).getAbsoluteFile(); |
| private static final File testFile = new File(testDir, "testfile"); |
| |
| private Configuration conf; |
| private FileContext localFs; |
| |
| @Before |
| public void setupForTests() throws IOException { |
| conf = new Configuration(); |
| localFs = FileContext.getLocalFSFileContext(conf); |
| testDir.mkdirs(); |
| testFile.createNewFile(); |
| } |
| |
| @After |
| public void teardown() { |
| FileUtil.fullyDelete(testDir); |
| } |
| |
| @Test |
| public void testConcurrentAccess() throws IOException { |
| // Initialize DirectoryCollection with a file instead of a directory |
| |
| String[] dirs = {testFile.getPath()}; |
| DirectoryCollection dc = |
| new DirectoryCollection(dirs, conf.getFloat( |
| YarnConfiguration.NM_MAX_PER_DISK_UTILIZATION_PERCENTAGE, |
| YarnConfiguration.DEFAULT_NM_MAX_PER_DISK_UTILIZATION_PERCENTAGE)); |
| |
| // Create an iterator before checkDirs is called to reliable test case |
| List<String> list = dc.getGoodDirs(); |
| ListIterator<String> li = list.listIterator(); |
| |
| // DiskErrorException will invalidate iterator of non-concurrent |
| // collections. ConcurrentModificationException will be thrown upon next |
| // use of the iterator. |
| Assert.assertTrue("checkDirs did not remove test file from directory list", |
| dc.checkDirs()); |
| |
| // Verify no ConcurrentModification is thrown |
| li.next(); |
| } |
| |
| @Test |
| public void testCreateDirectories() throws IOException { |
| |
| conf.set(CommonConfigurationKeys.FS_PERMISSIONS_UMASK_KEY, "077"); |
| |
| String dirA = new File(testDir, "dirA").getPath(); |
| String dirB = new File(dirA, "dirB").getPath(); |
| String dirC = new File(testDir, "dirC").getPath(); |
| Path pathC = new Path(dirC); |
| FsPermission permDirC = new FsPermission((short)0710); |
| |
| localFs.mkdir(pathC, null, true); |
| localFs.setPermission(pathC, permDirC); |
| |
| String[] dirs = { dirA, dirB, dirC }; |
| DirectoryCollection dc = |
| new DirectoryCollection(dirs, conf.getFloat( |
| YarnConfiguration.NM_MAX_PER_DISK_UTILIZATION_PERCENTAGE, |
| YarnConfiguration.DEFAULT_NM_MAX_PER_DISK_UTILIZATION_PERCENTAGE)); |
| FsPermission defaultPerm = FsPermission.getDefault() |
| .applyUMask(new FsPermission((short)FsPermission.DEFAULT_UMASK)); |
| boolean createResult = dc.createNonExistentDirs(localFs, defaultPerm); |
| Assert.assertTrue(createResult); |
| |
| FileStatus status = localFs.getFileStatus(new Path(dirA)); |
| Assert.assertEquals("local dir parent not created with proper permissions", |
| defaultPerm, status.getPermission()); |
| status = localFs.getFileStatus(new Path(dirB)); |
| Assert.assertEquals("local dir not created with proper permissions", |
| defaultPerm, status.getPermission()); |
| status = localFs.getFileStatus(pathC); |
| Assert.assertEquals("existing local directory permissions modified", |
| permDirC, status.getPermission()); |
| } |
| |
| @Test |
| public void testDiskSpaceUtilizationLimit() throws IOException { |
| |
| String dirA = new File(testDir, "dirA").getPath(); |
| String[] dirs = { dirA }; |
| DirectoryCollection dc = new DirectoryCollection(dirs, 0.0F); |
| dc.checkDirs(); |
| Assert.assertEquals(0, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertEquals(1, dc.getFailedDirs().size()); |
| Assert.assertEquals(1, dc.getFullDirs().size()); |
| Assert.assertNotNull(dc.getDirectoryErrorInfo(dirA)); |
| Assert.assertEquals(DirectoryCollection.DiskErrorCause.DISK_FULL, dc.getDirectoryErrorInfo(dirA).cause); |
| |
| // no good dirs |
| Assert.assertEquals(0, dc.getGoodDirsDiskUtilizationPercentage()); |
| |
| dc = new DirectoryCollection(dirs, 100.0F); |
| int utilizedSpacePerc = |
| (int) ((testDir.getTotalSpace() - testDir.getUsableSpace()) * 100 / |
| testDir.getTotalSpace()); |
| dc.checkDirs(); |
| Assert.assertEquals(1, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertEquals(0, dc.getFailedDirs().size()); |
| Assert.assertEquals(0, dc.getFullDirs().size()); |
| Assert.assertNull(dc.getDirectoryErrorInfo(dirA)); |
| |
| Assert.assertEquals(utilizedSpacePerc, |
| dc.getGoodDirsDiskUtilizationPercentage()); |
| |
| dc = new DirectoryCollection(dirs, testDir.getTotalSpace() / (1024 * 1024)); |
| dc.checkDirs(); |
| Assert.assertEquals(0, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertEquals(1, dc.getFailedDirs().size()); |
| Assert.assertEquals(1, dc.getFullDirs().size()); |
| Assert.assertNotNull(dc.getDirectoryErrorInfo(dirA)); |
| // no good dirs |
| Assert.assertEquals(0, dc.getGoodDirsDiskUtilizationPercentage()); |
| |
| dc = new DirectoryCollection(dirs, 100.0F, 100.0F, 0); |
| utilizedSpacePerc = |
| (int)((testDir.getTotalSpace() - testDir.getUsableSpace()) * 100 / |
| testDir.getTotalSpace()); |
| dc.checkDirs(); |
| Assert.assertEquals(1, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertEquals(0, dc.getFailedDirs().size()); |
| Assert.assertEquals(0, dc.getFullDirs().size()); |
| Assert.assertNull(dc.getDirectoryErrorInfo(dirA)); |
| |
| Assert.assertEquals(utilizedSpacePerc, |
| dc.getGoodDirsDiskUtilizationPercentage()); |
| } |
| |
| @Test |
| public void testDiskSpaceUtilizationThresholdEnabled() throws IOException { |
| |
| String dirA = new File(testDir, "dirA").getPath(); |
| String[] dirs = {dirA}; |
| DirectoryCollection dc = new DirectoryCollection(dirs, 0.0F); |
| |
| // Disable disk utilization threshold. |
| dc.setDiskUtilizationThresholdEnabled(false); |
| Assert.assertFalse(dc.getDiskUtilizationThresholdEnabled()); |
| |
| dc.checkDirs(); |
| Assert.assertEquals(1, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertEquals(0, dc.getFailedDirs().size()); |
| Assert.assertEquals(0, dc.getFullDirs().size()); |
| Assert.assertNull(dc.getDirectoryErrorInfo(dirA)); |
| |
| // Enable disk utilization threshold. |
| dc.setDiskUtilizationThresholdEnabled(true); |
| Assert.assertTrue(dc.getDiskUtilizationThresholdEnabled()); |
| |
| dc.checkDirs(); |
| Assert.assertEquals(0, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertEquals(1, dc.getFailedDirs().size()); |
| Assert.assertEquals(1, dc.getFullDirs().size()); |
| Assert.assertNotNull(dc.getDirectoryErrorInfo(dirA)); |
| Assert.assertEquals(DirectoryCollection.DiskErrorCause.DISK_FULL, |
| dc.getDirectoryErrorInfo(dirA).cause); |
| |
| // no good dirs |
| Assert.assertEquals(0, |
| dc.getGoodDirsDiskUtilizationPercentage()); |
| |
| dc = new DirectoryCollection(dirs, 100.0F); |
| int utilizedSpacePerc = |
| (int) ((testDir.getTotalSpace() - testDir.getUsableSpace()) * 100 / |
| testDir.getTotalSpace()); |
| dc.checkDirs(); |
| Assert.assertEquals(1, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertEquals(0, dc.getFailedDirs().size()); |
| Assert.assertEquals(0, dc.getFullDirs().size()); |
| Assert.assertNull(dc.getDirectoryErrorInfo(dirA)); |
| |
| Assert.assertEquals(utilizedSpacePerc, |
| dc.getGoodDirsDiskUtilizationPercentage()); |
| |
| dc = new DirectoryCollection(dirs, |
| testDir.getTotalSpace() / (1024 * 1024)); |
| |
| // Disable disk utilization threshold. |
| dc.setDiskUtilizationThresholdEnabled(false); |
| Assert.assertFalse(dc.getDiskUtilizationThresholdEnabled()); |
| |
| // Disable disk free space threshold. |
| dc.setDiskFreeSpaceThresholdEnabled(false); |
| Assert.assertFalse(dc.getDiskFreeSpaceThresholdEnabled()); |
| dc.checkDirs(); |
| |
| Assert.assertEquals(1, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertEquals(0, dc.getFailedDirs().size()); |
| Assert.assertEquals(0, dc.getFullDirs().size()); |
| Assert.assertNull(dc.getDirectoryErrorInfo(dirA)); |
| |
| dc = new DirectoryCollection(dirs, |
| testDir.getTotalSpace() / (1024 * 1024)); |
| |
| // Enable disk free space threshold. |
| dc.setDiskFreeSpaceThresholdEnabled(true); |
| Assert.assertTrue(dc.getDiskFreeSpaceThresholdEnabled()); |
| |
| dc.checkDirs(); |
| |
| Assert.assertEquals(0, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertEquals(1, dc.getFailedDirs().size()); |
| Assert.assertEquals(1, dc.getFullDirs().size()); |
| Assert.assertNotNull(dc.getDirectoryErrorInfo(dirA)); |
| // no good dirs |
| Assert.assertEquals(0, dc.getGoodDirsDiskUtilizationPercentage()); |
| |
| dc = new DirectoryCollection(dirs, 100.0F, 100.0F, 0); |
| utilizedSpacePerc = |
| (int)((testDir.getTotalSpace() - testDir.getUsableSpace()) * 100 / |
| testDir.getTotalSpace()); |
| dc.checkDirs(); |
| Assert.assertEquals(1, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertEquals(0, dc.getFailedDirs().size()); |
| Assert.assertEquals(0, dc.getFullDirs().size()); |
| Assert.assertNull(dc.getDirectoryErrorInfo(dirA)); |
| |
| Assert.assertEquals(utilizedSpacePerc, |
| dc.getGoodDirsDiskUtilizationPercentage()); |
| } |
| |
| @Test |
| public void testDiskLimitsCutoffSetters() throws IOException { |
| |
| String[] dirs = { "dir" }; |
| DirectoryCollection dc = new DirectoryCollection(dirs, 0.0F, 0.0F, 100); |
| float testValue = 57.5F; |
| float delta = 0.1F; |
| dc.setDiskUtilizationPercentageCutoff(testValue, 50.0F); |
| Assert.assertEquals(testValue, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(50.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| |
| testValue = -57.5F; |
| dc.setDiskUtilizationPercentageCutoff(testValue, testValue); |
| Assert.assertEquals(0.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(0.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| |
| testValue = 157.5F; |
| dc.setDiskUtilizationPercentageCutoff(testValue, testValue); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| |
| long lowSpaceValue = 57; |
| dc.setDiskUtilizationSpaceCutoff(lowSpaceValue); |
| Assert.assertEquals(lowSpaceValue, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(lowSpaceValue, dc.getDiskUtilizationSpaceCutoffHigh()); |
| long highSpaceValue = 73; |
| dc.setDiskUtilizationSpaceCutoff(lowSpaceValue, highSpaceValue); |
| Assert.assertEquals(lowSpaceValue, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(highSpaceValue, dc.getDiskUtilizationSpaceCutoffHigh()); |
| lowSpaceValue = -57; |
| dc.setDiskUtilizationSpaceCutoff(lowSpaceValue); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffHigh()); |
| dc.setDiskUtilizationSpaceCutoff(lowSpaceValue, highSpaceValue); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(highSpaceValue, dc.getDiskUtilizationSpaceCutoffHigh()); |
| highSpaceValue = -10; |
| dc.setDiskUtilizationSpaceCutoff(lowSpaceValue, highSpaceValue); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffHigh()); |
| lowSpaceValue = 33; |
| dc.setDiskUtilizationSpaceCutoff(lowSpaceValue, highSpaceValue); |
| Assert.assertEquals(lowSpaceValue, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(lowSpaceValue, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| } |
| |
| @Test |
| public void testFailedDisksBecomingGoodAgain() throws Exception { |
| |
| String dirA = new File(testDir, "dirA").getPath(); |
| String[] dirs = { dirA }; |
| DirectoryCollection dc = new DirectoryCollection(dirs, 0.0F); |
| dc.checkDirs(); |
| Assert.assertEquals(0, dc.getGoodDirs().size()); |
| Assert.assertEquals(1, dc.getFailedDirs().size()); |
| Assert.assertEquals(1, dc.getFullDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertNotNull(dc.getDirectoryErrorInfo(dirA)); |
| Assert.assertEquals(DirectoryCollection.DiskErrorCause.DISK_FULL, dc.getDirectoryErrorInfo(dirA).cause); |
| |
| dc.setDiskUtilizationPercentageCutoff(100.0F, 100.0F); |
| dc.checkDirs(); |
| Assert.assertEquals(1, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getFailedDirs().size()); |
| Assert.assertEquals(0, dc.getFullDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertNull(dc.getDirectoryErrorInfo(dirA)); |
| |
| conf.set(CommonConfigurationKeys.FS_PERMISSIONS_UMASK_KEY, "077"); |
| |
| String dirB = new File(testDir, "dirB").getPath(); |
| Path pathB = new Path(dirB); |
| FsPermission permDirB = new FsPermission((short) 0400); |
| |
| localFs.mkdir(pathB, null, true); |
| localFs.setPermission(pathB, permDirB); |
| |
| String[] dirs2 = { dirB }; |
| |
| dc = new DirectoryCollection(dirs2, 100.0F); |
| dc.checkDirs(); |
| Assert.assertEquals(0, dc.getGoodDirs().size()); |
| Assert.assertEquals(1, dc.getFailedDirs().size()); |
| Assert.assertEquals(0, dc.getFullDirs().size()); |
| Assert.assertEquals(1, dc.getErroredDirs().size()); |
| Assert.assertNotNull(dc.getDirectoryErrorInfo(dirB)); |
| Assert.assertEquals(DirectoryCollection.DiskErrorCause.OTHER, dc.getDirectoryErrorInfo(dirB).cause); |
| |
| permDirB = new FsPermission((short) 0700); |
| localFs.setPermission(pathB, permDirB); |
| dc.checkDirs(); |
| Assert.assertEquals(1, dc.getGoodDirs().size()); |
| Assert.assertEquals(0, dc.getFailedDirs().size()); |
| Assert.assertEquals(0, dc.getFullDirs().size()); |
| Assert.assertEquals(0, dc.getErroredDirs().size()); |
| Assert.assertNull(dc.getDirectoryErrorInfo(dirA)); |
| } |
| |
| @Test |
| public void testConstructors() { |
| |
| String[] dirs = { "dir" }; |
| float delta = 0.1F; |
| DirectoryCollection dc = new DirectoryCollection(dirs); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, 57.5F); |
| Assert.assertEquals(57.5F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(57.5F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, 57); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(57, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(57, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, 57, 73); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(57, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(73, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, 57, 33); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(57, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(57, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, 57, -33); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(57, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(57, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, -57, -33); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, -57, 33); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(33, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, 57.5F, 50.5F, 67); |
| Assert.assertEquals(57.5F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(50.5F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(67, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(67, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, -57.5F, -57.5F, -67); |
| Assert.assertEquals(0.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(0.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, 157.5F, 157.5F, -67); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(0, dc.getDiskUtilizationSpaceCutoffHigh()); |
| |
| dc = new DirectoryCollection(dirs, 157.5F, 157.5F, 5, 10); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffHigh(), |
| delta); |
| Assert.assertEquals(100.0F, dc.getDiskUtilizationPercentageCutoffLow(), |
| delta); |
| Assert.assertEquals(5, dc.getDiskUtilizationSpaceCutoffLow()); |
| Assert.assertEquals(10, dc.getDiskUtilizationSpaceCutoffHigh()); |
| } |
| |
| @Test |
| public void testDirsChangeListener() { |
| DirsChangeListenerTest listener1 = new DirsChangeListenerTest(); |
| DirsChangeListenerTest listener2 = new DirsChangeListenerTest(); |
| DirsChangeListenerTest listener3 = new DirsChangeListenerTest(); |
| |
| String dirA = new File(testDir, "dirA").getPath(); |
| String[] dirs = { dirA }; |
| DirectoryCollection dc = new DirectoryCollection(dirs, 0.0F); |
| Assert.assertEquals(1, dc.getGoodDirs().size()); |
| Assert.assertEquals(listener1.num, 0); |
| Assert.assertEquals(listener2.num, 0); |
| Assert.assertEquals(listener3.num, 0); |
| dc.registerDirsChangeListener(listener1); |
| dc.registerDirsChangeListener(listener2); |
| dc.registerDirsChangeListener(listener3); |
| Assert.assertEquals(listener1.num, 1); |
| Assert.assertEquals(listener2.num, 1); |
| Assert.assertEquals(listener3.num, 1); |
| |
| dc.deregisterDirsChangeListener(listener3); |
| dc.checkDirs(); |
| Assert.assertEquals(0, dc.getGoodDirs().size()); |
| Assert.assertEquals(listener1.num, 2); |
| Assert.assertEquals(listener2.num, 2); |
| Assert.assertEquals(listener3.num, 1); |
| |
| dc.deregisterDirsChangeListener(listener2); |
| dc.setDiskUtilizationPercentageCutoff(100.0F, 100.0F); |
| dc.checkDirs(); |
| Assert.assertEquals(1, dc.getGoodDirs().size()); |
| Assert.assertEquals(listener1.num, 3); |
| Assert.assertEquals(listener2.num, 2); |
| Assert.assertEquals(listener3.num, 1); |
| } |
| |
| static class DirsChangeListenerTest implements DirsChangeListener { |
| public int num = 0; |
| public DirsChangeListenerTest() { |
| } |
| @Override |
| public void onDirsChanged() { |
| num++; |
| } |
| } |
| } |