| /** |
| * 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.IOException; |
| import java.io.FileNotFoundException; |
| 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.junit.Assert; |
| |
| /** |
| * Helper class for unit tests. |
| */ |
| public final class FileContextTestWrapper extends FSTestWrapper { |
| |
| private final FileContext fc; |
| |
| public FileContextTestWrapper(FileContext context) { |
| this(context, null); |
| } |
| |
| public FileContextTestWrapper(FileContext context, String rootDir) { |
| super(rootDir); |
| this.fc = context; |
| } |
| |
| public FSTestWrapper getLocalFSWrapper() |
| throws UnsupportedFileSystemException { |
| return new FileContextTestWrapper(FileContext.getLocalFSFileContext()); |
| } |
| |
| public Path getDefaultWorkingDirectory() throws IOException { |
| return getTestRootPath("/user/" + System.getProperty("user.name")) |
| .makeQualified(fc.getDefaultFileSystem().getUri(), |
| fc.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 = |
| fc.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 = fc.create(path, EnumSet.of(CreateFlag.APPEND)); |
| byte[] data = getFileData(numBlocks, blockSize); |
| out.write(data, 0, data.length); |
| out.close(); |
| } |
| |
| public boolean exists(Path p) throws IOException { |
| return fc.util().exists(p); |
| } |
| |
| public boolean isFile(Path p) throws IOException { |
| try { |
| return fc.getFileStatus(p).isFile(); |
| } catch (FileNotFoundException e) { |
| return false; |
| } |
| } |
| |
| public boolean isDir(Path p) throws IOException { |
| try { |
| return fc.getFileStatus(p).isDirectory(); |
| } catch (FileNotFoundException e) { |
| return false; |
| } |
| } |
| |
| public boolean isSymlink(Path p) throws IOException { |
| try { |
| return fc.getFileLinkStatus(p).isSymlink(); |
| } catch (FileNotFoundException e) { |
| return false; |
| } |
| } |
| |
| public void writeFile(Path path, byte b[]) throws IOException { |
| FSDataOutputStream out = |
| fc.create(path,EnumSet.of(CreateFlag.CREATE), CreateOpts.createParent()); |
| out.write(b); |
| out.close(); |
| } |
| |
| public byte[] readFile(Path path, int len) throws IOException { |
| DataInputStream dis = fc.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 = fc.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(fc.makeQualified(new Path(path)), s.getPath()); |
| } |
| |
| public void checkFileLinkStatus(String path, fileType expectedType) |
| throws IOException { |
| FileStatus s = fc.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(fc.makeQualified(new Path(path)), s.getPath()); |
| } |
| |
| // |
| // FileContext wrappers |
| // |
| |
| @Override |
| public Path makeQualified(Path path) { |
| return fc.makeQualified(path); |
| } |
| |
| @Override |
| public void mkdir(Path dir, FsPermission permission, boolean createParent) |
| throws AccessControlException, FileAlreadyExistsException, |
| FileNotFoundException, ParentNotDirectoryException, |
| UnsupportedFileSystemException, IOException { |
| fc.mkdir(dir, permission, createParent); |
| } |
| |
| @Override |
| public boolean delete(Path f, boolean recursive) |
| throws AccessControlException, FileNotFoundException, |
| UnsupportedFileSystemException, IOException { |
| return fc.delete(f, recursive); |
| } |
| |
| @Override |
| public FileStatus getFileLinkStatus(Path f) throws AccessControlException, |
| FileNotFoundException, UnsupportedFileSystemException, IOException { |
| return fc.getFileLinkStatus(f); |
| } |
| |
| @Override |
| public void createSymlink(Path target, Path link, boolean createParent) |
| throws AccessControlException, FileAlreadyExistsException, |
| FileNotFoundException, ParentNotDirectoryException, |
| UnsupportedFileSystemException, IOException { |
| fc.createSymlink(target, link, createParent); |
| } |
| |
| @Override |
| public void setWorkingDirectory(Path newWDir) throws IOException { |
| fc.setWorkingDirectory(newWDir); |
| } |
| |
| @Override |
| public Path getWorkingDirectory() { |
| return fc.getWorkingDirectory(); |
| } |
| |
| @Override |
| public FileStatus getFileStatus(Path f) throws AccessControlException, |
| FileNotFoundException, UnsupportedFileSystemException, IOException { |
| return fc.getFileStatus(f); |
| } |
| |
| @Override |
| public FSDataOutputStream create(Path f, EnumSet<CreateFlag> createFlag, |
| CreateOpts... opts) throws AccessControlException, |
| FileAlreadyExistsException, FileNotFoundException, |
| ParentNotDirectoryException, UnsupportedFileSystemException, IOException { |
| return fc.create(f, createFlag, opts); |
| } |
| |
| @Override |
| public FSDataInputStream open(Path f) throws AccessControlException, |
| FileNotFoundException, UnsupportedFileSystemException, IOException { |
| return fc.open(f); |
| } |
| |
| @Override |
| public boolean setReplication(final Path f, final short replication) |
| throws AccessControlException, FileNotFoundException, |
| IOException { |
| return fc.setReplication(f, replication); |
| } |
| |
| @Override |
| public Path getLinkTarget(Path f) throws AccessControlException, |
| FileNotFoundException, UnsupportedFileSystemException, IOException { |
| return fc.getLinkTarget(f); |
| } |
| |
| @Override |
| public void rename(Path src, Path dst, Rename... options) |
| throws AccessControlException, FileAlreadyExistsException, |
| FileNotFoundException, ParentNotDirectoryException, |
| UnsupportedFileSystemException, IOException { |
| fc.rename(src, dst, options); |
| } |
| |
| @Override |
| public BlockLocation[] getFileBlockLocations(Path f, long start, long len) |
| throws AccessControlException, FileNotFoundException, |
| UnsupportedFileSystemException, IOException { |
| return fc.getFileBlockLocations(f, start, len); |
| } |
| |
| @Override |
| public FileChecksum getFileChecksum(Path f) throws AccessControlException, |
| FileNotFoundException, IOException { |
| return fc.getFileChecksum(f); |
| } |
| |
| @Override |
| public RemoteIterator<FileStatus> listStatusIterator(Path f) |
| throws AccessControlException, FileNotFoundException, |
| UnsupportedFileSystemException, IOException { |
| return fc.listStatus(f); |
| } |
| |
| @Override |
| public void setPermission(final Path f, final FsPermission permission) |
| throws AccessControlException, FileNotFoundException, |
| UnsupportedFileSystemException, IOException { |
| fc.setPermission(f, permission); |
| } |
| |
| @Override |
| public void setOwner(final Path f, final String username, |
| final String groupname) throws AccessControlException, |
| UnsupportedFileSystemException, FileNotFoundException, |
| IOException { |
| fc.setOwner(f, username, groupname); |
| } |
| |
| @Override |
| public void setTimes(Path f, long mtime, long atime) |
| throws AccessControlException, FileNotFoundException, |
| UnsupportedFileSystemException, IOException { |
| fc.setTimes(f, mtime, atime); |
| } |
| |
| @Override |
| public FileStatus[] listStatus(Path f) throws AccessControlException, |
| FileNotFoundException, UnsupportedFileSystemException, IOException { |
| return fc.util().listStatus(f); |
| } |
| |
| @Override |
| public FileStatus[] globStatus(Path pathPattern, PathFilter filter) |
| throws IOException { |
| return fc.util().globStatus(pathPattern, filter); |
| } |
| } |