| /** |
| * 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.fs; |
| |
| import java.io.DataInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.util.EnumSet; |
| |
| import org.apache.hadoop.fs.Options.CreateOpts; |
| import org.apache.hadoop.fs.Options.CreateOpts.BlockSize; |
| import org.apache.hadoop.fs.Options.Rename; |
| import org.apache.hadoop.fs.permission.FsPermission; |
| import org.apache.hadoop.io.IOUtils; |
| import org.apache.hadoop.security.AccessControlException; |
| import org.apache.hadoop.util.Progressable; |
| import org.junit.Assert; |
| |
| /** |
| * Helper class for unit tests. |
| */ |
| public final class FileSystemTestWrapper extends FSTestWrapper { |
| |
| private final FileSystem fs; |
| |
| public FileSystemTestWrapper(FileSystem fs) { |
| this(fs, null); |
| } |
| |
| public FileSystemTestWrapper(FileSystem fs, String rootDir) { |
| super(rootDir); |
| this.fs = fs; |
| } |
| |
| public FSTestWrapper getLocalFSWrapper() |
| throws IOException { |
| return new FileSystemTestWrapper(FileSystem.getLocal(fs.getConf())); |
| } |
| |
| public Path getDefaultWorkingDirectory() throws IOException { |
| return getTestRootPath("/user/" + System.getProperty("user.name")) |
| .makeQualified(fs.getUri(), |
| fs.getWorkingDirectory()); |
| } |
| |
| /* |
| * Create files with numBlocks blocks each with block size blockSize. |
| */ |
| public long createFile(Path path, int numBlocks, CreateOpts... options) |
| throws IOException { |
| BlockSize blockSizeOpt = CreateOpts.getOpt(CreateOpts.BlockSize.class, options); |
| long blockSize = blockSizeOpt != null ? blockSizeOpt.getValue() |
| : DEFAULT_BLOCK_SIZE; |
| FSDataOutputStream out = |
| create(path, EnumSet.of(CreateFlag.CREATE), options); |
| byte[] data = getFileData(numBlocks, blockSize); |
| out.write(data, 0, data.length); |
| out.close(); |
| return data.length; |
| } |
| |
| public long createFile(Path path, int numBlocks, int blockSize) |
| throws IOException { |
| return createFile(path, numBlocks, CreateOpts.blockSize(blockSize), |
| CreateOpts.createParent()); |
| } |
| |
| public long createFile(Path path) throws IOException { |
| return createFile(path, DEFAULT_NUM_BLOCKS, CreateOpts.createParent()); |
| } |
| |
| public long createFile(String name) throws IOException { |
| Path path = getTestRootPath(name); |
| return createFile(path); |
| } |
| |
| public long createFileNonRecursive(String name) throws IOException { |
| Path path = getTestRootPath(name); |
| return createFileNonRecursive(path); |
| } |
| |
| public long createFileNonRecursive(Path path) throws IOException { |
| return createFile(path, DEFAULT_NUM_BLOCKS, CreateOpts.donotCreateParent()); |
| } |
| |
| public void appendToFile(Path path, int numBlocks, CreateOpts... options) |
| throws IOException { |
| BlockSize blockSizeOpt = CreateOpts.getOpt(CreateOpts.BlockSize.class, options); |
| long blockSize = blockSizeOpt != null ? blockSizeOpt.getValue() |
| : DEFAULT_BLOCK_SIZE; |
| FSDataOutputStream out; |
| out = fs.append(path); |
| byte[] data = getFileData(numBlocks, blockSize); |
| out.write(data, 0, data.length); |
| out.close(); |
| } |
| |
| public boolean exists(Path p) throws IOException { |
| return fs.exists(p); |
| } |
| |
| public boolean isFile(Path p) throws IOException { |
| try { |
| return fs.getFileStatus(p).isFile(); |
| } catch (FileNotFoundException e) { |
| return false; |
| } |
| } |
| |
| public boolean isDir(Path p) throws IOException { |
| try { |
| return fs.getFileStatus(p).isDirectory(); |
| } catch (FileNotFoundException e) { |
| return false; |
| } |
| } |
| |
| public boolean isSymlink(Path p) throws IOException { |
| try { |
| return fs.getFileLinkStatus(p).isSymlink(); |
| } catch (FileNotFoundException e) { |
| return false; |
| } |
| } |
| |
| public void writeFile(Path path, byte b[]) throws IOException { |
| FSDataOutputStream out = |
| create(path,EnumSet.of(CreateFlag.CREATE), CreateOpts.createParent()); |
| out.write(b); |
| out.close(); |
| } |
| |
| public byte[] readFile(Path path, int len) throws IOException { |
| DataInputStream dis = fs.open(path); |
| byte[] buffer = new byte[len]; |
| IOUtils.readFully(dis, buffer, 0, len); |
| dis.close(); |
| return buffer; |
| } |
| |
| public FileStatus containsPath(Path path, FileStatus[] dirList) |
| throws IOException { |
| for(int i = 0; i < dirList.length; i ++) { |
| if (path.equals(dirList[i].getPath())) |
| return dirList[i]; |
| } |
| return null; |
| } |
| |
| public FileStatus containsPath(String path, FileStatus[] dirList) |
| throws IOException { |
| return containsPath(new Path(path), dirList); |
| } |
| |
| public void checkFileStatus(String path, fileType expectedType) |
| throws IOException { |
| FileStatus s = fs.getFileStatus(new Path(path)); |
| Assert.assertNotNull(s); |
| if (expectedType == fileType.isDir) { |
| Assert.assertTrue(s.isDirectory()); |
| } else if (expectedType == fileType.isFile) { |
| Assert.assertTrue(s.isFile()); |
| } else if (expectedType == fileType.isSymlink) { |
| Assert.assertTrue(s.isSymlink()); |
| } |
| Assert.assertEquals(fs.makeQualified(new Path(path)), s.getPath()); |
| } |
| |
| public void checkFileLinkStatus(String path, fileType expectedType) |
| throws IOException { |
| FileStatus s = fs.getFileLinkStatus(new Path(path)); |
| Assert.assertNotNull(s); |
| if (expectedType == fileType.isDir) { |
| Assert.assertTrue(s.isDirectory()); |
| } else if (expectedType == fileType.isFile) { |
| Assert.assertTrue(s.isFile()); |
| } else if (expectedType == fileType.isSymlink) { |
| Assert.assertTrue(s.isSymlink()); |
| } |
| Assert.assertEquals(fs.makeQualified(new Path(path)), s.getPath()); |
| } |
| |
| // |
| // FileContext wrappers |
| // |
| |
| @Override |
| public Path makeQualified(Path path) { |
| return fs.makeQualified(path); |
| } |
| |
| @SuppressWarnings("deprecation") |
| @Override |
| public void mkdir(Path dir, FsPermission permission, boolean createParent) |
| throws AccessControlException, FileAlreadyExistsException, |
| FileNotFoundException, ParentNotDirectoryException, |
| UnsupportedFileSystemException, IOException { |
| fs.primitiveMkdir(dir, permission, createParent); |
| } |
| |
| @Override |
| public boolean delete(Path f, boolean recursive) |
| throws AccessControlException, FileNotFoundException, |
| UnsupportedFileSystemException, IOException { |
| return fs.delete(f, recursive); |
| } |
| |
| @Override |
| public FileStatus getFileLinkStatus(Path f) throws AccessControlException, |
| FileNotFoundException, UnsupportedFileSystemException, IOException { |
| return fs.getFileLinkStatus(f); |
| } |
| |
| @Override |
| public void createSymlink(Path target, Path link, boolean createParent) |
| throws AccessControlException, FileAlreadyExistsException, |
| FileNotFoundException, ParentNotDirectoryException, |
| UnsupportedFileSystemException, IOException { |
| fs.createSymlink(target, link, createParent); |
| } |
| |
| @Override |
| public void setWorkingDirectory(Path newWDir) throws IOException { |
| fs.setWorkingDirectory(newWDir); |
| } |
| |
| @Override |
| public Path getWorkingDirectory() { |
| return fs.getWorkingDirectory(); |
| } |
| |
| @Override |
| public FileStatus getFileStatus(Path f) throws AccessControlException, |
| FileNotFoundException, UnsupportedFileSystemException, IOException { |
| return fs.getFileStatus(f); |
| } |
| |
| @Override |
| public FSDataOutputStream create(Path f, EnumSet<CreateFlag> createFlag, |
| CreateOpts... opts) throws AccessControlException, |
| FileAlreadyExistsException, FileNotFoundException, |
| ParentNotDirectoryException, UnsupportedFileSystemException, IOException { |
| |
| // Need to translate the FileContext-style options into FileSystem-style |
| |
| // Permissions with umask |
| CreateOpts.Perms permOpt = CreateOpts.getOpt( |
| CreateOpts.Perms.class, opts); |
| FsPermission umask = FsPermission.getUMask(fs.getConf()); |
| FsPermission permission = (permOpt != null) ? permOpt.getValue() |
| : FsPermission.getFileDefault().applyUMask(umask); |
| permission = permission.applyUMask(umask); |
| // Overwrite |
| boolean overwrite = createFlag.contains(CreateFlag.OVERWRITE); |
| // bufferSize |
| int bufferSize = fs.getConf().getInt( |
| CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_KEY, |
| CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_DEFAULT); |
| CreateOpts.BufferSize bufOpt = CreateOpts.getOpt( |
| CreateOpts.BufferSize.class, opts); |
| bufferSize = (bufOpt != null) ? bufOpt.getValue() : bufferSize; |
| // replication |
| short replication = fs.getDefaultReplication(f); |
| CreateOpts.ReplicationFactor repOpt = |
| CreateOpts.getOpt(CreateOpts.ReplicationFactor.class, opts); |
| replication = (repOpt != null) ? repOpt.getValue() : replication; |
| // blockSize |
| long blockSize = fs.getDefaultBlockSize(f); |
| CreateOpts.BlockSize blockOpt = CreateOpts.getOpt( |
| CreateOpts.BlockSize.class, opts); |
| blockSize = (blockOpt != null) ? blockOpt.getValue() : blockSize; |
| // Progressable |
| Progressable progress = null; |
| CreateOpts.Progress progressOpt = CreateOpts.getOpt( |
| CreateOpts.Progress.class, opts); |
| progress = (progressOpt != null) ? progressOpt.getValue() : progress; |
| return fs.create(f, permission, overwrite, bufferSize, replication, |
| blockSize, progress); |
| } |
| |
| @Override |
| public FSDataInputStream open(Path f) throws AccessControlException, |
| FileNotFoundException, UnsupportedFileSystemException, IOException { |
| return fs.open(f); |
| } |
| |
| @Override |
| public Path getLinkTarget(Path f) throws AccessControlException, |
| FileNotFoundException, UnsupportedFileSystemException, IOException { |
| return fs.getLinkTarget(f); |
| } |
| |
| @Override |
| public boolean setReplication(final Path f, final short replication) |
| throws AccessControlException, FileNotFoundException, |
| IOException { |
| return fs.setReplication(f, replication); |
| } |
| |
| @SuppressWarnings("deprecation") |
| @Override |
| public void rename(Path src, Path dst, Rename... options) |
| throws AccessControlException, FileAlreadyExistsException, |
| FileNotFoundException, ParentNotDirectoryException, |
| UnsupportedFileSystemException, IOException { |
| fs.rename(src, dst, options); |
| } |
| |
| @Override |
| public BlockLocation[] getFileBlockLocations(Path f, long start, long len) |
| throws AccessControlException, FileNotFoundException, |
| UnsupportedFileSystemException, IOException { |
| return fs.getFileBlockLocations(f, start, len); |
| } |
| |
| @Override |
| public FileChecksum getFileChecksum(Path f) throws AccessControlException, |
| FileNotFoundException, IOException { |
| return fs.getFileChecksum(f); |
| } |
| |
| @Override |
| public RemoteIterator<FileStatus> listStatusIterator(Path f) |
| throws AccessControlException, FileNotFoundException, |
| UnsupportedFileSystemException, IOException { |
| return fs.listStatusIterator(f); |
| } |
| |
| @Override |
| public void setPermission(final Path f, final FsPermission permission) |
| throws AccessControlException, FileNotFoundException, |
| UnsupportedFileSystemException, IOException { |
| fs.setPermission(f, permission); |
| } |
| |
| @Override |
| public void setOwner(final Path f, final String username, |
| final String groupname) throws AccessControlException, |
| UnsupportedFileSystemException, FileNotFoundException, |
| IOException { |
| fs.setOwner(f, username, groupname); |
| } |
| |
| @Override |
| public void setTimes(Path f, long mtime, long atime) |
| throws AccessControlException, FileNotFoundException, |
| UnsupportedFileSystemException, IOException { |
| fs.setTimes(f, mtime, atime); |
| } |
| |
| @Override |
| public FileStatus[] listStatus(Path f) throws AccessControlException, |
| FileNotFoundException, UnsupportedFileSystemException, IOException { |
| return fs.listStatus(f); |
| } |
| |
| @Override |
| public FileStatus[] globStatus(Path pathPattern, PathFilter filter) |
| throws IOException { |
| return fs.globStatus(pathPattern, filter); |
| } |
| } |