| /* |
| * 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.distributedlog.fs; |
| |
| import static com.google.common.base.Charsets.UTF_8; |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.InputStreamReader; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.hadoop.fs.FSDataInputStream; |
| import org.apache.hadoop.fs.FSDataOutputStream; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.Path; |
| import org.junit.Test; |
| |
| /** |
| * Integration test for {@link DLFileSystem}. |
| */ |
| @Slf4j |
| public class TestDLFileSystem extends TestDLFSBase { |
| |
| @Test(expected = FileNotFoundException.class) |
| public void testOpenFileNotFound() throws Exception { |
| Path path = new Path("not-found-file"); |
| fs.open(path, 1024); |
| } |
| |
| @Test |
| public void testBasicIO() throws Exception { |
| Path path = new Path("/path/to/" + runtime.getMethodName()); |
| |
| assertFalse(fs.exists(path)); |
| |
| try (FSDataOutputStream out = fs.create(path)) { |
| for (int i = 0; i < 100; i++) { |
| out.writeBytes("line-" + i + "\n"); |
| } |
| out.flush(); |
| } |
| assertTrue(fs.exists(path)); |
| |
| File tempFile = new File("/tmp/" + runtime.getMethodName()); |
| tempFile.delete(); |
| Path localDst = new Path(tempFile.getPath()); |
| // copy the file |
| fs.copyToLocalFile(path, localDst); |
| // copy the file to dest |
| fs.copyFromLocalFile(localDst, new Path(runtime.getMethodName() + "-copied")); |
| |
| // rename |
| Path dstPath = new Path(runtime.getMethodName() + "-renamed"); |
| fs.rename(path, dstPath); |
| assertFalse(fs.exists(path)); |
| assertTrue(fs.exists(dstPath)); |
| |
| try (BufferedReader reader = new BufferedReader(new InputStreamReader(fs.open(dstPath, 1134)))) { |
| int lineno = 0; |
| String line; |
| while ((line = reader.readLine()) != null) { |
| assertEquals("line-" + lineno, line); |
| ++lineno; |
| } |
| assertEquals(100, lineno); |
| } |
| |
| |
| // delete the file |
| fs.delete(dstPath, false); |
| assertFalse(fs.exists(dstPath)); |
| } |
| |
| @Test |
| public void testListStatuses() throws Exception { |
| Path parentPath = new Path("/path/to/" + runtime.getMethodName()); |
| assertFalse(fs.exists(parentPath)); |
| try (FSDataOutputStream parentOut = fs.create(parentPath)) { |
| parentOut.writeBytes("parent"); |
| parentOut.flush(); |
| } |
| assertTrue(fs.exists(parentPath)); |
| |
| int numLogs = 3; |
| for (int i = 0; i < numLogs; i++) { |
| Path path = new Path("/path/to/" + runtime.getMethodName() |
| + "/" + runtime.getMethodName() + "-" + i); |
| assertFalse(fs.exists(path)); |
| try (FSDataOutputStream out = fs.create(path)) { |
| out.writeBytes("line"); |
| out.flush(); |
| } |
| assertTrue(fs.exists(path)); |
| } |
| FileStatus[] files = fs.listStatus(new Path("/path/to/" + runtime.getMethodName())); |
| |
| assertEquals(3, files.length); |
| for (int i = 0; i < numLogs; i++) { |
| FileStatus file = files[i]; |
| assertEquals(4, file.getLen()); |
| assertFalse(file.isDirectory()); |
| assertEquals(3, file.getReplication()); |
| assertEquals(0L, file.getModificationTime()); |
| assertEquals( |
| new Path("/path/to/" + runtime.getMethodName() + "/" + runtime.getMethodName() + "-" + i), |
| file.getPath()); |
| } |
| } |
| |
| @Test |
| public void testMkDirs() throws Exception { |
| Path path = new Path("/path/to/" + runtime.getMethodName()); |
| assertFalse(fs.exists(path)); |
| assertTrue(fs.mkdirs(path)); |
| assertTrue(fs.exists(path)); |
| assertTrue(fs.mkdirs(path)); |
| } |
| |
| @Test(expected = UnsupportedOperationException.class) |
| public void testTruncation() throws Exception { |
| Path path = new Path("/path/to/" + runtime.getMethodName()); |
| fs.truncate(path, 10); |
| } |
| |
| @Test |
| public void testDeleteRecursive() throws Exception { |
| int numLogs = 3; |
| for (int i = 0; i < numLogs; i++) { |
| Path path = new Path("/path/to/" + runtime.getMethodName() |
| + "/" + runtime.getMethodName() + "-" + i); |
| assertFalse(fs.exists(path)); |
| try (FSDataOutputStream out = fs.create(path)) { |
| out.writeBytes("line"); |
| out.flush(); |
| } |
| assertTrue(fs.exists(path)); |
| } |
| |
| fs.delete(new Path("/path/to/" + runtime.getMethodName()), true); |
| FileStatus[] files = fs.listStatus(new Path("/path/to/" + runtime.getMethodName())); |
| assertEquals(0, files.length); |
| } |
| |
| @Test |
| public void testCreateOverwrite() throws Exception { |
| Path path = new Path("/path/to/" + runtime.getMethodName()); |
| assertFalse(fs.exists(path)); |
| byte[] originData = "original".getBytes(UTF_8); |
| try (FSDataOutputStream out = fs.create(path)) { |
| out.write(originData); |
| out.flush(); |
| } |
| |
| try (FSDataInputStream in = fs.open(path, 1024)) { |
| assertEquals(originData.length, in.available()); |
| byte[] readData = new byte[originData.length]; |
| assertEquals(originData.length, in.read(readData)); |
| assertArrayEquals(originData, readData); |
| } |
| |
| byte[] overwrittenData = "overwritten".getBytes(UTF_8); |
| try (FSDataOutputStream out = fs.create(path, true)) { |
| out.write(overwrittenData); |
| out.flush(); |
| } |
| |
| try (FSDataInputStream in = fs.open(path, 1024)) { |
| assertEquals(overwrittenData.length, in.available()); |
| byte[] readData = new byte[overwrittenData.length]; |
| assertEquals(overwrittenData.length, in.read(readData)); |
| assertArrayEquals(overwrittenData, readData); |
| } |
| } |
| |
| @Test |
| public void testAppend() throws Exception { |
| Path path = new Path("/path/to/" + runtime.getMethodName()); |
| assertFalse(fs.exists(path)); |
| byte[] originData = "original".getBytes(UTF_8); |
| try (FSDataOutputStream out = fs.create(path)) { |
| out.write(originData); |
| out.flush(); |
| } |
| |
| try (FSDataInputStream in = fs.open(path, 1024)) { |
| assertEquals(originData.length, in.available()); |
| byte[] readData = new byte[originData.length]; |
| assertEquals(originData.length, in.read(readData)); |
| assertArrayEquals(originData, readData); |
| } |
| |
| byte[] appendData = "append".getBytes(UTF_8); |
| try (FSDataOutputStream out = fs.append(path, 1024)) { |
| out.write(appendData); |
| out.flush(); |
| } |
| |
| try (FSDataInputStream in = fs.open(path, 1024)) { |
| assertEquals(originData.length + appendData.length, in.available()); |
| byte[] readData = new byte[originData.length]; |
| assertEquals(originData.length, in.read(readData)); |
| assertArrayEquals(originData, readData); |
| readData = new byte[appendData.length]; |
| assertEquals(appendData.length, in.read(readData)); |
| assertArrayEquals(appendData, readData); |
| } |
| } |
| |
| } |