| /* |
| * 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.commons.vfs2.provider.tar; |
| |
| import java.io.File; |
| |
| import org.apache.commons.vfs2.FileObject; |
| import org.apache.commons.vfs2.FileSystemException; |
| import org.apache.commons.vfs2.FilesCache; |
| import org.apache.commons.vfs2.cache.WeakRefFilesCache; |
| import org.apache.commons.vfs2.impl.StandardFileSystemManager; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class TarFileSystemTestCase { |
| |
| @Test |
| public void testTarFileUseDefaultFilesCache() throws FileSystemException { |
| testUseWeakRefFilesCache("tar", "src/test/resources/test-data/test.tar", null); |
| } |
| |
| @Test |
| @SuppressWarnings("resource") // Managed by the file system, no need to close. |
| public void testTarFileUseWeakRefFilesCache() throws FileSystemException { |
| testUseWeakRefFilesCache("tar", "src/test/resources/test-data/test.tar", new WeakRefFilesCache()); |
| } |
| |
| @Test |
| public void testTbz2FileUseDefautlFilesCache() throws FileSystemException { |
| testUseWeakRefFilesCache("tbz2", "src/test/resources/test-data/test.tbz2", null); |
| } |
| |
| @Test |
| @SuppressWarnings("resource") // Managed by the file system, no need to close. |
| public void testTbz2FileUseWeakRefFilesCache() throws FileSystemException { |
| testUseWeakRefFilesCache("tbz2", "src/test/resources/test-data/test.tbz2", new WeakRefFilesCache()); |
| } |
| |
| @Test |
| public void testTgzFileUseDefaultFilesCache() throws FileSystemException { |
| testUseWeakRefFilesCache("tgz", "src/test/resources/test-data/test.tgz", null); |
| } |
| |
| @Test |
| @SuppressWarnings("resource") // Managed by the file system, no need to close. |
| public void testTgzFileUseWeakRefFilesCache() throws FileSystemException { |
| testUseWeakRefFilesCache("tgz", "src/test/resources/test-data/test.tgz", new WeakRefFilesCache()); |
| } |
| |
| /** |
| * Sets a file system's file cache to use WeakReference, and test resolve file after GC. |
| * |
| * @param filesCache TODO |
| */ |
| private void testUseWeakRefFilesCache(final String scheme, final String filePath, final FilesCache filesCache) |
| throws FileSystemException { |
| |
| final String fileUri = scheme + ":file:" + new File(filePath).getAbsolutePath(); |
| FileObject fileObject = null; |
| |
| try (final StandardFileSystemManager manager = new StandardFileSystemManager()) { |
| if (filesCache != null) { |
| manager.setFilesCache(filesCache); |
| } |
| manager.init(); |
| |
| int cnt = 0; |
| while (cnt < 100_000) { |
| cnt++; |
| |
| // resolve file, assert fileObject exist. clear fileObject to null and wait GC. |
| try { |
| fileObject = manager.resolveFile(fileUri); |
| Assert.assertTrue(fileObject.exists()); |
| } finally { |
| if (fileObject != null) { |
| fileObject.close(); |
| } |
| fileObject = null; |
| } |
| |
| // every 200 times suggest one gc |
| if (cnt % 200 == 0) { |
| System.gc(); |
| } |
| } |
| } |
| } |
| } |