| /** |
| * 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.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.junit.Assert; |
| import static org.junit.Assert.*; |
| import org.junit.Test; |
| |
| public class TestHarFileSystem { |
| @Test |
| public void testHarUri() { |
| final Configuration conf = new Configuration(); |
| checkInvalidPath("har://hdfs-/foo.har", conf); |
| checkInvalidPath("har://hdfs/foo.har", conf); |
| checkInvalidPath("har://-hdfs/foo.har", conf); |
| checkInvalidPath("har://-/foo.har", conf); |
| } |
| |
| static void checkInvalidPath(String s, Configuration conf) { |
| System.out.println("\ncheckInvalidPath: " + s); |
| final Path p = new Path(s); |
| try { |
| p.getFileSystem(conf); |
| Assert.fail(p + " is an invalid path."); |
| } catch (IOException e) { |
| System.out.println("GOOD: Got an exception."); |
| e.printStackTrace(System.out); |
| } |
| } |
| |
| @Test |
| public void testFileChecksum() { |
| final Path p = new Path("har://file-localhost/foo.har/file1"); |
| final HarFileSystem harfs = new HarFileSystem(); |
| Assert.assertEquals(null, harfs.getFileChecksum(p)); |
| } |
| |
| /** |
| * Test how block location offsets and lengths are fixed. |
| */ |
| @Test |
| public void testFixBlockLocations() { |
| // do some tests where start == 0 |
| { |
| // case 1: range starts before current har block and ends after |
| BlockLocation[] b = { new BlockLocation(null, null, 10, 10) }; |
| HarFileSystem.fixBlockLocations(b, 0, 20, 5); |
| assertEquals(b[0].getOffset(), 5); |
| assertEquals(b[0].getLength(), 10); |
| } |
| { |
| // case 2: range starts in current har block and ends after |
| BlockLocation[] b = { new BlockLocation(null, null, 10, 10) }; |
| HarFileSystem.fixBlockLocations(b, 0, 20, 15); |
| assertEquals(b[0].getOffset(), 0); |
| assertEquals(b[0].getLength(), 5); |
| } |
| { |
| // case 3: range starts before current har block and ends in |
| // current har block |
| BlockLocation[] b = { new BlockLocation(null, null, 10, 10) }; |
| HarFileSystem.fixBlockLocations(b, 0, 10, 5); |
| assertEquals(b[0].getOffset(), 5); |
| assertEquals(b[0].getLength(), 5); |
| } |
| { |
| // case 4: range starts and ends in current har block |
| BlockLocation[] b = { new BlockLocation(null, null, 10, 10) }; |
| HarFileSystem.fixBlockLocations(b, 0, 6, 12); |
| assertEquals(b[0].getOffset(), 0); |
| assertEquals(b[0].getLength(), 6); |
| } |
| |
| // now try a range where start == 3 |
| { |
| // case 5: range starts before current har block and ends after |
| BlockLocation[] b = { new BlockLocation(null, null, 10, 10) }; |
| HarFileSystem.fixBlockLocations(b, 3, 20, 5); |
| assertEquals(b[0].getOffset(), 5); |
| assertEquals(b[0].getLength(), 10); |
| } |
| { |
| // case 6: range starts in current har block and ends after |
| BlockLocation[] b = { new BlockLocation(null, null, 10, 10) }; |
| HarFileSystem.fixBlockLocations(b, 3, 20, 15); |
| assertEquals(b[0].getOffset(), 3); |
| assertEquals(b[0].getLength(), 2); |
| } |
| { |
| // case 7: range starts before current har block and ends in |
| // current har block |
| BlockLocation[] b = { new BlockLocation(null, null, 10, 10) }; |
| HarFileSystem.fixBlockLocations(b, 3, 7, 5); |
| assertEquals(b[0].getOffset(), 5); |
| assertEquals(b[0].getLength(), 5); |
| } |
| { |
| // case 8: range starts and ends in current har block |
| BlockLocation[] b = { new BlockLocation(null, null, 10, 10) }; |
| HarFileSystem.fixBlockLocations(b, 3, 3, 12); |
| assertEquals(b[0].getOffset(), 3); |
| assertEquals(b[0].getLength(), 3); |
| } |
| |
| // test case from JIRA MAPREDUCE-1752 |
| { |
| BlockLocation[] b = { new BlockLocation(null, null, 512, 512), |
| new BlockLocation(null, null, 1024, 512) }; |
| HarFileSystem.fixBlockLocations(b, 0, 512, 896); |
| assertEquals(b[0].getOffset(), 0); |
| assertEquals(b[0].getLength(), 128); |
| assertEquals(b[1].getOffset(), 128); |
| assertEquals(b[1].getLength(), 384); |
| } |
| |
| } |
| } |