| /* |
| * 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.lucene.store; |
| |
| |
| import java.io.IOException; |
| import java.nio.channels.SeekableByteChannel; |
| import java.nio.file.AccessDeniedException; |
| import java.nio.file.FileSystem; |
| import java.nio.file.Files; |
| import java.nio.file.OpenOption; |
| import java.nio.file.Path; |
| import java.nio.file.attribute.FileAttribute; |
| import java.util.Set; |
| |
| import org.apache.lucene.mockfile.FilterFileSystemProvider; |
| import org.apache.lucene.mockfile.FilterPath; |
| import org.apache.lucene.util.IOUtils; |
| import org.apache.lucene.util.TestUtil; |
| |
| /** Simple tests for NativeFSLockFactory */ |
| public class TestNativeFSLockFactory extends BaseLockFactoryTestCase { |
| |
| @Override |
| protected Directory getDirectory(Path path) throws IOException { |
| return newFSDirectory(path, NativeFSLockFactory.INSTANCE); |
| } |
| |
| /** Verify NativeFSLockFactory works correctly if the lock file exists */ |
| public void testLockFileExists() throws IOException { |
| Path tempDir = createTempDir(); |
| Path lockFile = tempDir.resolve("test.lock"); |
| Files.createFile(lockFile); |
| |
| Directory dir = getDirectory(tempDir); |
| Lock l = dir.obtainLock("test.lock"); |
| l.close(); |
| dir.close(); |
| } |
| |
| /** release the lock and test ensureValid fails */ |
| public void testInvalidateLock() throws IOException { |
| Directory dir = getDirectory(createTempDir()); |
| NativeFSLockFactory.NativeFSLock lock = (NativeFSLockFactory.NativeFSLock) dir.obtainLock("test.lock"); |
| lock.ensureValid(); |
| lock.lock.release(); |
| expectThrows(AlreadyClosedException.class, () -> { |
| lock.ensureValid(); |
| }); |
| |
| IOUtils.closeWhileHandlingException(lock); |
| dir.close(); |
| } |
| |
| /** close the channel and test ensureValid fails */ |
| public void testInvalidateChannel() throws IOException { |
| Directory dir = getDirectory(createTempDir()); |
| NativeFSLockFactory.NativeFSLock lock = (NativeFSLockFactory.NativeFSLock) dir.obtainLock("test.lock"); |
| lock.ensureValid(); |
| lock.channel.close(); |
| expectThrows(AlreadyClosedException.class, () -> { |
| lock.ensureValid(); |
| }); |
| |
| IOUtils.closeWhileHandlingException(lock); |
| dir.close(); |
| } |
| |
| /** delete the lockfile and test ensureValid fails */ |
| public void testDeleteLockFile() throws IOException { |
| try (Directory dir = getDirectory(createTempDir())) { |
| assumeFalse("we must be able to delete an open file", TestUtil.hasWindowsFS(dir)); |
| |
| Lock lock = dir.obtainLock("test.lock"); |
| lock.ensureValid(); |
| |
| dir.deleteFile("test.lock"); |
| |
| expectThrows(IOException.class, () -> { |
| lock.ensureValid(); |
| }); |
| |
| IOUtils.closeWhileHandlingException(lock); |
| } |
| } |
| |
| /** MockFileSystem that throws AccessDeniedException on creating test.lock */ |
| static class MockBadPermissionsFileSystem extends FilterFileSystemProvider { |
| public MockBadPermissionsFileSystem(FileSystem delegateInstance) { |
| super("mockbadpermissions://", delegateInstance); |
| } |
| |
| @Override |
| public SeekableByteChannel newByteChannel(Path path, Set<? extends OpenOption> options, FileAttribute<?>... attrs) throws IOException { |
| if (path.getFileName().toString().equals("test.lock")) { |
| throw new AccessDeniedException(path.toString(), null, "fake access denied"); |
| } |
| return super.newByteChannel(path, options, attrs); |
| } |
| } |
| |
| public void testBadPermissions() throws IOException { |
| // create a mock filesystem that will throw exc on creating test.lock |
| Path tmpDir = createTempDir(); |
| tmpDir = FilterPath.unwrap(tmpDir).toRealPath(); |
| FileSystem mock = new MockBadPermissionsFileSystem(tmpDir.getFileSystem()).getFileSystem(null); |
| Path mockPath = mock.getPath(tmpDir.toString()); |
| |
| // we should get an IOException (typically NoSuchFileException but no guarantee) with |
| // our fake AccessDenied added as suppressed. |
| Directory dir = getDirectory(mockPath.resolve("indexDir")); |
| IOException expected = expectThrows(IOException.class, () -> { |
| dir.obtainLock("test.lock"); |
| }); |
| AccessDeniedException suppressed = (AccessDeniedException) expected.getSuppressed()[0]; |
| assertTrue(suppressed.getMessage().contains("fake access denied")); |
| |
| dir.close(); |
| } |
| } |