| /* |
| * 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.swift; |
| |
| import org.apache.hadoop.fs.BlockLocation; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.swift.http.SwiftProtocolConstants; |
| import org.apache.hadoop.fs.swift.util.SwiftTestUtils; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| |
| /** |
| * Test block location logic. |
| * The endpoint may or may not be location-aware |
| */ |
| public class TestSwiftFileSystemBlockLocation extends SwiftFileSystemBaseTest { |
| |
| |
| @Test(timeout = SWIFT_TEST_TIMEOUT) |
| public void testLocateSingleFileBlocks() throws Throwable { |
| describe("verify that a file returns 1+ blocks"); |
| FileStatus fileStatus = createFileAndGetStatus(); |
| BlockLocation[] locations = |
| getFs().getFileBlockLocations(fileStatus, 0, 1); |
| assertNotEqual("No block locations supplied for " + fileStatus, 0, |
| locations.length); |
| for (BlockLocation location : locations) { |
| assertLocationValid(location); |
| } |
| } |
| |
| private void assertLocationValid(BlockLocation location) throws |
| IOException { |
| LOG.info(location); |
| String[] hosts = location.getHosts(); |
| String[] names = location.getNames(); |
| assertNotEqual("No hosts supplied for " + location, 0, hosts.length); |
| //for every host, there's a name. |
| assertEquals("Unequal names and hosts in " + location, |
| hosts.length, names.length); |
| assertEquals(SwiftProtocolConstants.BLOCK_LOCATION, |
| location.getNames()[0]); |
| assertEquals(SwiftProtocolConstants.TOPOLOGY_PATH, |
| location.getTopologyPaths()[0]); |
| } |
| |
| private FileStatus createFileAndGetStatus() throws IOException { |
| Path path = path("/test/locatedFile"); |
| createFile(path); |
| return fs.getFileStatus(path); |
| } |
| |
| @Test(timeout = SWIFT_TEST_TIMEOUT) |
| public void testLocateNullStatus() throws Throwable { |
| describe("verify that a null filestatus maps to a null location array"); |
| BlockLocation[] locations = |
| getFs().getFileBlockLocations((FileStatus) null, 0, 1); |
| assertNull(locations); |
| } |
| |
| @Test(timeout = SWIFT_TEST_TIMEOUT) |
| public void testLocateNegativeSeek() throws Throwable { |
| describe("verify that a negative offset is illegal"); |
| try { |
| BlockLocation[] locations = |
| getFs().getFileBlockLocations(createFileAndGetStatus(), |
| -1, |
| 1); |
| fail("Expected an exception, got " + locations.length + " locations"); |
| } catch (IllegalArgumentException e) { |
| //expected |
| } |
| } |
| |
| @Test(timeout = SWIFT_TEST_TIMEOUT) |
| public void testLocateNegativeLen() throws Throwable { |
| describe("verify that a negative length is illegal"); |
| try { |
| BlockLocation[] locations = |
| getFs().getFileBlockLocations(createFileAndGetStatus(), |
| 0, |
| -1); |
| fail("Expected an exception, got " + locations.length + " locations"); |
| } catch (IllegalArgumentException e) { |
| //expected |
| } |
| } |
| |
| |
| @Test(timeout = SWIFT_TEST_TIMEOUT) |
| public void testLocateOutOfRangeLen() throws Throwable { |
| describe("overshooting the length is legal, as long as the" + |
| " origin location is valid"); |
| |
| BlockLocation[] locations = |
| getFs().getFileBlockLocations(createFileAndGetStatus(), |
| 0, |
| data.length + 100); |
| assertNotNull(locations); |
| assertTrue(locations.length > 0); |
| } |
| |
| @Test(timeout = SWIFT_TEST_TIMEOUT) |
| public void testLocateOutOfRangeSrc() throws Throwable { |
| describe("Seeking out of the file length returns an empty array"); |
| |
| BlockLocation[] locations = |
| getFs().getFileBlockLocations(createFileAndGetStatus(), |
| data.length + 100, |
| 1); |
| assertEmptyBlockLocations(locations); |
| } |
| |
| private void assertEmptyBlockLocations(BlockLocation[] locations) { |
| assertNotNull(locations); |
| if (locations.length!=0) { |
| fail("non empty locations[] with first entry of " + locations[0]); |
| } |
| } |
| |
| @Test(timeout = SWIFT_TEST_TIMEOUT) |
| public void testLocateDirectory() throws Throwable { |
| describe("verify that locating a directory is an error"); |
| createFile(path("/test/filename")); |
| FileStatus status = fs.getFileStatus(path("/test")); |
| LOG.info("Filesystem is " + fs + "; target is " + status); |
| SwiftTestUtils.assertIsDirectory(status); |
| BlockLocation[] locations; |
| locations = getFs().getFileBlockLocations(status, |
| 0, |
| 1); |
| assertEmptyBlockLocations(locations); |
| } |
| |
| |
| @Test(timeout = SWIFT_TEST_TIMEOUT) |
| public void testLocateRootDirectory() throws Throwable { |
| describe("verify that locating the root directory is an error"); |
| FileStatus status = fs.getFileStatus(path("/")); |
| SwiftTestUtils.assertIsDirectory(status); |
| BlockLocation[] locations; |
| locations = getFs().getFileBlockLocations(status, |
| 0, |
| 1); |
| assertEmptyBlockLocations(locations); |
| } |
| |
| |
| } |