| /** |
| * 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.io.nativeio; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| |
| import org.junit.Assert; |
| import org.junit.Assume; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.apache.commons.lang.SystemUtils; |
| import org.apache.hadoop.fs.FileUtil; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class TestSharedFileDescriptorFactory { |
| static final Logger LOG = |
| LoggerFactory.getLogger(TestSharedFileDescriptorFactory.class); |
| |
| private static final File TEST_BASE = GenericTestUtils.getTestDir(); |
| |
| @Before |
| public void setup() throws Exception { |
| Assume.assumeTrue(null == |
| SharedFileDescriptorFactory.getLoadingFailureReason()); |
| } |
| |
| @Test(timeout=10000) |
| public void testReadAndWrite() throws Exception { |
| File path = new File(TEST_BASE, "testReadAndWrite"); |
| path.mkdirs(); |
| SharedFileDescriptorFactory factory = |
| SharedFileDescriptorFactory.create("woot_", |
| new String[] { path.getAbsolutePath() }); |
| FileInputStream inStream = |
| factory.createDescriptor("testReadAndWrite", 4096); |
| FileOutputStream outStream = new FileOutputStream(inStream.getFD()); |
| outStream.write(101); |
| inStream.getChannel().position(0); |
| Assert.assertEquals(101, inStream.read()); |
| inStream.close(); |
| outStream.close(); |
| FileUtil.fullyDelete(path); |
| } |
| |
| static private void createTempFile(String path) throws Exception { |
| FileOutputStream fos = new FileOutputStream(path); |
| fos.write(101); |
| fos.close(); |
| } |
| |
| @Test(timeout=10000) |
| public void testCleanupRemainders() throws Exception { |
| Assume.assumeTrue(NativeIO.isAvailable()); |
| Assume.assumeTrue(SystemUtils.IS_OS_UNIX); |
| File path = new File(TEST_BASE, "testCleanupRemainders"); |
| path.mkdirs(); |
| String remainder1 = path.getAbsolutePath() + |
| Path.SEPARATOR + "woot2_remainder1"; |
| String remainder2 = path.getAbsolutePath() + |
| Path.SEPARATOR + "woot2_remainder2"; |
| createTempFile(remainder1); |
| createTempFile(remainder2); |
| SharedFileDescriptorFactory.create("woot2_", |
| new String[] { path.getAbsolutePath() }); |
| // creating the SharedFileDescriptorFactory should have removed |
| // the remainders |
| Assert.assertFalse(new File(remainder1).exists()); |
| Assert.assertFalse(new File(remainder2).exists()); |
| FileUtil.fullyDelete(path); |
| } |
| |
| @Test(timeout=60000) |
| public void testDirectoryFallbacks() throws Exception { |
| File nonExistentPath = new File(TEST_BASE, "nonexistent"); |
| File permissionDeniedPath = new File("/"); |
| File goodPath = new File(TEST_BASE, "testDirectoryFallbacks"); |
| goodPath.mkdirs(); |
| try { |
| SharedFileDescriptorFactory.create("shm_", |
| new String[] { nonExistentPath.getAbsolutePath(), |
| permissionDeniedPath.getAbsolutePath() }); |
| Assert.fail(); |
| } catch (IOException e) { |
| } |
| SharedFileDescriptorFactory factory = |
| SharedFileDescriptorFactory.create("shm_", |
| new String[] { nonExistentPath.getAbsolutePath(), |
| permissionDeniedPath.getAbsolutePath(), |
| goodPath.getAbsolutePath() } ); |
| Assert.assertEquals(goodPath.getAbsolutePath(), factory.getPath()); |
| FileUtil.fullyDelete(goodPath); |
| } |
| } |