| /** |
| * 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.examples.terasort; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.mapred.HadoopTestCase; |
| import org.apache.hadoop.util.ToolRunner; |
| |
| public class TestTeraSort extends HadoopTestCase { |
| |
| public TestTeraSort() |
| throws IOException { |
| super(CLUSTER_MR, DFS_FS, 1, 1); |
| } |
| |
| protected void tearDown() throws Exception { |
| getFileSystem().delete(new Path(TEST_DIR), true); |
| super.tearDown(); |
| } |
| |
| // Input/Output paths for sort |
| private static final String TEST_DIR = |
| new File(System.getProperty("test.build.data", "/tmp"), "terasort") |
| .getAbsolutePath(); |
| private static final Path SORT_INPUT_PATH = new Path(TEST_DIR, "sortin"); |
| private static final Path SORT_OUTPUT_PATH = new Path(TEST_DIR, "sortout"); |
| private static final Path TERA_OUTPUT_PATH = new Path(TEST_DIR, "validate"); |
| private static final String NUM_ROWS = "100"; |
| |
| private void runTeraGen(Configuration conf, Path sortInput) |
| throws Exception { |
| String[] genArgs = {NUM_ROWS, sortInput.toString()}; |
| |
| // Run TeraGen |
| assertEquals(ToolRunner.run(conf, new TeraGen(), genArgs), 0); |
| } |
| |
| private void runTeraSort(Configuration conf, |
| Path sortInput, Path sortOutput) throws Exception { |
| |
| // Setup command-line arguments to 'sort' |
| String[] sortArgs = {sortInput.toString(), sortOutput.toString()}; |
| |
| // Run Sort |
| assertEquals(ToolRunner.run(conf, new TeraSort(), sortArgs), 0); |
| } |
| |
| private void runTeraValidator(Configuration job, |
| Path sortOutput, Path valOutput) |
| throws Exception { |
| String[] svArgs = {sortOutput.toString(), valOutput.toString()}; |
| |
| // Run Tera-Validator |
| assertEquals(ToolRunner.run(job, new TeraValidate(), svArgs), 0); |
| } |
| |
| public void testTeraSort() throws Exception { |
| // Run TeraGen to generate input for 'terasort' |
| runTeraGen(createJobConf(), SORT_INPUT_PATH); |
| |
| // Run terasort |
| runTeraSort(createJobConf(), SORT_INPUT_PATH, SORT_OUTPUT_PATH); |
| |
| // Run tera-validator to check if sort worked correctly |
| runTeraValidator(createJobConf(), SORT_OUTPUT_PATH, |
| TERA_OUTPUT_PATH); |
| } |
| |
| } |