| /** |
| * 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 static org.junit.Assert.*; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataInput; |
| import java.io.DataInputStream; |
| import java.io.DataOutput; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.junit.Test; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.permission.FsPermission; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class TestFileStatus { |
| |
| private static final Logger LOG = |
| LoggerFactory.getLogger(TestFileStatus.class); |
| |
| /** Values for creating {@link FileStatus} in some tests */ |
| static final int LENGTH = 1; |
| static final int REPLICATION = 2; |
| static final long BLKSIZE = 3; |
| static final long MTIME = 4; |
| static final long ATIME = 5; |
| static final String OWNER = "owner"; |
| static final String GROUP = "group"; |
| static final FsPermission PERMISSION = FsPermission.valueOf("-rw-rw-rw-"); |
| static final Path PATH = new Path("path"); |
| |
| /** |
| * Check that the write and readField methods work correctly. |
| */ |
| @Test |
| public void testFileStatusWritable() throws Exception { |
| FileStatus[] tests = { |
| new FileStatus(1,false,5,3,4,5,null,"","",new Path("/a/b")), |
| new FileStatus(0,false,1,2,3,new Path("/")), |
| new FileStatus(1,false,5,3,4,5,null,"","",new Path("/a/b")) |
| }; |
| |
| LOG.info("Writing FileStatuses to a ByteArrayOutputStream"); |
| // Writing input list to ByteArrayOutputStream |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| DataOutput out = new DataOutputStream(baos); |
| for (FileStatus fs : tests) { |
| fs.write(out); |
| } |
| |
| LOG.info("Creating ByteArrayInputStream object"); |
| DataInput in = |
| new DataInputStream(new ByteArrayInputStream(baos.toByteArray())); |
| |
| |
| LOG.info("Testing if read objects are equal to written ones"); |
| FileStatus dest = new FileStatus(); |
| int iterator = 0; |
| for (FileStatus fs : tests) { |
| dest.readFields(in); |
| assertEquals("Different FileStatuses in iteration " + iterator, |
| dest, fs); |
| iterator++; |
| } |
| } |
| |
| /** |
| * Check that the full parameter constructor works correctly. |
| */ |
| @Test |
| public void constructorFull() throws IOException { |
| boolean isdir = false; |
| Path symlink = new Path("symlink"); |
| FileStatus fileStatus = new FileStatus(LENGTH, isdir, REPLICATION, BLKSIZE, |
| MTIME, ATIME, PERMISSION, OWNER, GROUP, symlink, PATH); |
| |
| validateAccessors(fileStatus, LENGTH, isdir, REPLICATION, BLKSIZE, MTIME, |
| ATIME, PERMISSION, OWNER, GROUP, symlink, PATH); |
| } |
| |
| /** |
| * Check that the non-symlink constructor works correctly. |
| */ |
| @Test |
| public void constructorNoSymlink() throws IOException { |
| boolean isdir = true; |
| FileStatus fileStatus = new FileStatus(LENGTH, isdir, REPLICATION, BLKSIZE, |
| MTIME, ATIME, PERMISSION, OWNER, GROUP, PATH); |
| validateAccessors(fileStatus, LENGTH, isdir, REPLICATION, BLKSIZE, MTIME, |
| ATIME, PERMISSION, OWNER, GROUP, null, PATH); |
| } |
| |
| /** |
| * Check that the constructor without owner, group and permissions works |
| * correctly. |
| */ |
| @Test |
| public void constructorNoOwner() throws IOException { |
| boolean isdir = true; |
| FileStatus fileStatus = new FileStatus(LENGTH, isdir, |
| REPLICATION, BLKSIZE, MTIME, PATH); |
| validateAccessors(fileStatus, LENGTH, isdir, REPLICATION, BLKSIZE, MTIME, |
| 0, FsPermission.getDirDefault(), "", "", null, PATH); |
| } |
| |
| /** |
| * Check that the no parameter constructor works correctly. |
| */ |
| @Test |
| public void constructorBlank() throws IOException { |
| FileStatus fileStatus = new FileStatus(); |
| validateAccessors(fileStatus, 0, false, 0, 0, 0, |
| 0, FsPermission.getFileDefault(), "", "", null, null); |
| } |
| |
| /** |
| * Check that FileStatus are equal if their paths are equal. |
| */ |
| @Test |
| public void testEquals() { |
| Path path = new Path("path"); |
| FileStatus fileStatus1 = new FileStatus(1, true, 1, 1, 1, 1, |
| FsPermission.valueOf("-rw-rw-rw-"), "one", "one", null, path); |
| FileStatus fileStatus2 = new FileStatus(2, true, 2, 2, 2, 2, |
| FsPermission.valueOf("---x--x--x"), "two", "two", null, path); |
| assertEquals(fileStatus1, fileStatus2); |
| } |
| |
| /** |
| * Check that FileStatus are not equal if their paths are not equal. |
| */ |
| @Test |
| public void testNotEquals() { |
| Path path1 = new Path("path1"); |
| Path path2 = new Path("path2"); |
| FileStatus fileStatus1 = new FileStatus(1, true, 1, 1, 1, 1, |
| FsPermission.valueOf("-rw-rw-rw-"), "one", "one", null, path1); |
| FileStatus fileStatus2 = new FileStatus(1, true, 1, 1, 1, 1, |
| FsPermission.valueOf("-rw-rw-rw-"), "one", "one", null, path2); |
| assertFalse(fileStatus1.equals(fileStatus2)); |
| assertFalse(fileStatus2.equals(fileStatus1)); |
| } |
| |
| /** |
| * Check that toString produces the expected output for a file. |
| */ |
| @Test |
| public void toStringFile() throws IOException { |
| boolean isdir = false; |
| FileStatus fileStatus = new FileStatus(LENGTH, isdir, REPLICATION, BLKSIZE, |
| MTIME, ATIME, PERMISSION, OWNER, GROUP, null, PATH); |
| validateToString(fileStatus); |
| } |
| |
| /** |
| * Check that toString produces the expected output for a directory. |
| */ |
| @Test |
| public void toStringDir() throws IOException { |
| FileStatus fileStatus = new FileStatus(LENGTH, true, REPLICATION, BLKSIZE, |
| MTIME, ATIME, PERMISSION, OWNER, GROUP, null, PATH); |
| validateToString(fileStatus); |
| } |
| |
| @Test |
| public void testCompareTo() throws IOException { |
| Path path1 = new Path("path1"); |
| Path path2 = new Path("path2"); |
| FileStatus fileStatus1 = |
| new FileStatus(1, true, 1, 1, 1, 1, FsPermission.valueOf("-rw-rw-rw-"), |
| "one", "one", null, path1); |
| FileStatus fileStatus2 = |
| new FileStatus(1, true, 1, 1, 1, 1, FsPermission.valueOf("-rw-rw-rw-"), |
| "one", "one", null, path2); |
| assertTrue(fileStatus1.compareTo(fileStatus2) < 0); |
| assertTrue(fileStatus2.compareTo(fileStatus1) > 0); |
| |
| List<FileStatus> statList = new ArrayList<>(); |
| statList.add(fileStatus1); |
| statList.add(fileStatus2); |
| assertTrue(Collections.binarySearch(statList, fileStatus1) > -1); |
| } |
| |
| /** |
| * Check that toString produces the expected output for a symlink. |
| */ |
| @Test |
| public void toStringSymlink() throws IOException { |
| boolean isdir = false; |
| Path symlink = new Path("symlink"); |
| FileStatus fileStatus = new FileStatus(LENGTH, isdir, REPLICATION, BLKSIZE, |
| MTIME, ATIME, PERMISSION, OWNER, GROUP, symlink, PATH); |
| validateToString(fileStatus); |
| } |
| |
| /** |
| * Validate the accessors for FileStatus. |
| * @param fileStatus FileStatus to checked |
| * @param length expected length |
| * @param isdir expected isDirectory |
| * @param replication expected replication |
| * @param blocksize expected blocksize |
| * @param mtime expected modification time |
| * @param atime expected access time |
| * @param permission expected permission |
| * @param owner expected owner |
| * @param group expected group |
| * @param symlink expected symlink |
| * @param path expected path |
| */ |
| private void validateAccessors(FileStatus fileStatus, |
| long length, boolean isdir, int replication, long blocksize, long mtime, |
| long atime, FsPermission permission, String owner, String group, |
| Path symlink, Path path) throws IOException { |
| |
| assertEquals(length, fileStatus.getLen()); |
| assertEquals(isdir, fileStatus.isDirectory()); |
| assertEquals(replication, fileStatus.getReplication()); |
| assertEquals(blocksize, fileStatus.getBlockSize()); |
| assertEquals(mtime, fileStatus.getModificationTime()); |
| assertEquals(atime, fileStatus.getAccessTime()); |
| assertEquals(permission, fileStatus.getPermission()); |
| assertEquals(owner, fileStatus.getOwner()); |
| assertEquals(group, fileStatus.getGroup()); |
| if(symlink == null) { |
| assertFalse(fileStatus.isSymlink()); |
| } else { |
| assertTrue(fileStatus.isSymlink()); |
| assertEquals(symlink, fileStatus.getSymlink()); |
| } |
| assertEquals(path, fileStatus.getPath()); |
| } |
| |
| /** |
| * Validates the toString method for FileStatus. |
| * @param fileStatus FileStatus to be validated |
| */ |
| private void validateToString(FileStatus fileStatus) throws IOException { |
| StringBuilder expected = new StringBuilder(); |
| expected.append("FileStatus{"); |
| expected.append("path=").append(fileStatus.getPath()).append("; "); |
| expected.append("isDirectory=").append(fileStatus.isDirectory()).append("; "); |
| if(!fileStatus.isDirectory()) { |
| expected.append("length=").append(fileStatus.getLen()).append("; "); |
| expected.append("replication=").append(fileStatus.getReplication()).append("; "); |
| expected.append("blocksize=").append(fileStatus.getBlockSize()).append("; "); |
| } |
| expected.append("modification_time=").append(fileStatus.getModificationTime()).append("; "); |
| expected.append("access_time=").append(fileStatus.getAccessTime()).append("; "); |
| expected.append("owner=").append(fileStatus.getOwner()).append("; "); |
| expected.append("group=").append(fileStatus.getGroup()).append("; "); |
| expected.append("permission=").append(fileStatus.getPermission()).append("; "); |
| if(fileStatus.isSymlink()) { |
| expected.append("isSymlink=").append(true).append("; "); |
| expected.append("symlink=").append(fileStatus.getSymlink()).append("}"); |
| } else { |
| expected.append("isSymlink=").append(false).append("}"); |
| } |
| |
| assertEquals(expected.toString(), fileStatus.toString()); |
| } |
| } |