| /* |
| * 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.flink.core.fs; |
| |
| import org.apache.flink.core.fs.FileSystem.WriteMode; |
| import org.apache.flink.core.fs.local.LocalFileSystem; |
| |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * Tests for the {@link EntropyInjector}. |
| */ |
| public class EntropyInjectorTest { |
| |
| @ClassRule |
| public static final TemporaryFolder TMP_FOLDER = new TemporaryFolder(); |
| |
| @Test |
| public void testEmptyPath() throws Exception { |
| EntropyInjectingFileSystem efs = new TestEntropyInjectingFs("test", "ignored"); |
| Path path = new Path("hdfs://localhost:12345"); |
| |
| assertEquals(path, EntropyInjector.resolveEntropy(path, efs, true)); |
| assertEquals(path, EntropyInjector.resolveEntropy(path, efs, false)); |
| } |
| |
| @Test |
| public void testFullUriNonMatching() throws Exception { |
| EntropyInjectingFileSystem efs = new TestEntropyInjectingFs("_entropy_key_", "ignored"); |
| Path path = new Path("s3://hugo@myawesomehost:55522/path/to/the/file"); |
| |
| assertEquals(path, EntropyInjector.resolveEntropy(path, efs, true)); |
| assertEquals(path, EntropyInjector.resolveEntropy(path, efs, false)); |
| } |
| |
| @Test |
| public void testFullUriMatching() throws Exception { |
| EntropyInjectingFileSystem efs = new TestEntropyInjectingFs("s0mek3y", "12345678"); |
| Path path = new Path("s3://hugo@myawesomehost:55522/path/s0mek3y/the/file"); |
| |
| assertEquals(new Path("s3://hugo@myawesomehost:55522/path/12345678/the/file"), EntropyInjector.resolveEntropy(path, efs, true)); |
| assertEquals(new Path("s3://hugo@myawesomehost:55522/path/the/file"), EntropyInjector.resolveEntropy(path, efs, false)); |
| } |
| |
| @Test |
| public void testPathOnlyNonMatching() throws Exception { |
| EntropyInjectingFileSystem efs = new TestEntropyInjectingFs("_entropy_key_", "ignored"); |
| Path path = new Path("/path/file"); |
| |
| assertEquals(path, EntropyInjector.resolveEntropy(path, efs, true)); |
| assertEquals(path, EntropyInjector.resolveEntropy(path, efs, false)); |
| } |
| |
| @Test |
| public void testPathOnlyMatching() throws Exception { |
| EntropyInjectingFileSystem efs = new TestEntropyInjectingFs("_entropy_key_", "xyzz"); |
| Path path = new Path("/path/_entropy_key_/file"); |
| |
| assertEquals(new Path("/path/xyzz/file"), EntropyInjector.resolveEntropy(path, efs, true)); |
| assertEquals(new Path("/path/file"), EntropyInjector.resolveEntropy(path, efs, false)); |
| } |
| |
| @Test |
| public void testEntropyNotFullSegment() throws Exception { |
| EntropyInjectingFileSystem efs = new TestEntropyInjectingFs("_entropy_key_", "pqr"); |
| Path path = new Path("s3://myhost:122/entropy-_entropy_key_-suffix/file"); |
| |
| assertEquals(new Path("s3://myhost:122/entropy-pqr-suffix/file"), EntropyInjector.resolveEntropy(path, efs, true)); |
| assertEquals(new Path("s3://myhost:122/entropy--suffix/file"), EntropyInjector.resolveEntropy(path, efs, false)); |
| } |
| |
| @Test |
| public void testCreateEntropyAwarePlainFs() throws Exception { |
| File folder = TMP_FOLDER.newFolder(); |
| Path path = new Path(Path.fromLocalFile(folder), "_entropy_/file"); |
| |
| OutputStreamAndPath out = EntropyInjector.createEntropyAware( |
| LocalFileSystem.getSharedInstance(), path, WriteMode.NO_OVERWRITE); |
| |
| out.stream().close(); |
| |
| assertEquals(path, out.path()); |
| assertTrue(new File (new File(folder, "_entropy_"), "file").exists()); |
| } |
| |
| @Test |
| public void testCreateEntropyAwareEntropyFs() throws Exception { |
| File folder = TMP_FOLDER.newFolder(); |
| Path path = new Path(Path.fromLocalFile(folder), "_entropy_/file"); |
| Path pathWithEntropy = new Path(Path.fromLocalFile(folder), "test-entropy/file"); |
| |
| FileSystem fs = new TestEntropyInjectingFs("_entropy_", "test-entropy"); |
| |
| OutputStreamAndPath out = EntropyInjector.createEntropyAware(fs, path, WriteMode.NO_OVERWRITE); |
| |
| out.stream().close(); |
| |
| assertEquals(new Path(Path.fromLocalFile(folder), "test-entropy/file"), out.path()); |
| assertTrue(new File (new File(folder, "test-entropy"), "file").exists()); |
| } |
| |
| @Test |
| public void testWithSafetyNet() throws Exception { |
| final String entropyKey = "__ekey__"; |
| final String entropyValue = "abc"; |
| |
| final File folder = TMP_FOLDER.newFolder(); |
| |
| final Path path = new Path(Path.fromLocalFile(folder), entropyKey + "/path/"); |
| final Path pathWithEntropy = new Path(Path.fromLocalFile(folder), entropyValue + "/path/"); |
| |
| TestEntropyInjectingFs efs = new TestEntropyInjectingFs(entropyKey, entropyValue); |
| |
| FSDataOutputStream out; |
| |
| FileSystemSafetyNet.initializeSafetyNetForThread(); |
| FileSystem fs = FileSystemSafetyNet.wrapWithSafetyNetWhenActivated(efs); |
| try { |
| OutputStreamAndPath streamAndPath = EntropyInjector.createEntropyAware( |
| fs, path, WriteMode.NO_OVERWRITE); |
| |
| out = streamAndPath.stream(); |
| |
| assertEquals(pathWithEntropy, streamAndPath.path()); |
| } |
| finally { |
| FileSystemSafetyNet.closeSafetyNetAndGuardedResourcesForThread(); |
| } |
| |
| // check that the safety net closed the stream |
| try { |
| out.write(42); |
| out.flush(); |
| fail("stream should be already close and hence fail with an exception"); |
| } catch (IOException ignored) {} |
| } |
| |
| // ------------------------------------------------------------------------ |
| |
| private static final class TestEntropyInjectingFs extends LocalFileSystem implements EntropyInjectingFileSystem { |
| |
| private final String key; |
| |
| private final String entropy; |
| |
| TestEntropyInjectingFs(String key, String entropy) { |
| this.key = key; |
| this.entropy = entropy; |
| } |
| |
| @Override |
| public String getEntropyInjectionKey() { |
| return key; |
| } |
| |
| @Override |
| public String generateEntropy() { |
| return entropy; |
| } |
| } |
| } |