| /** |
| * 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.mnemonic.mapreduce; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Random; |
| |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.NullWritable; |
| import org.apache.hadoop.mapred.JobConf; |
| import org.apache.hadoop.mapreduce.InputFormat; |
| import org.apache.hadoop.mapreduce.OutputFormat; |
| import org.apache.hadoop.mapreduce.RecordReader; |
| import org.apache.hadoop.mapreduce.RecordWriter; |
| import org.apache.hadoop.mapreduce.TaskAttemptContext; |
| import org.apache.hadoop.mapreduce.TaskAttemptID; |
| import org.apache.hadoop.mapreduce.TaskType; |
| import org.apache.hadoop.mapreduce.lib.input.FileSplit; |
| import org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl; |
| import org.apache.mnemonic.DurableType; |
| import org.apache.mnemonic.Utils; |
| import org.apache.mnemonic.hadoop.MneConfigHelper; |
| import org.apache.mnemonic.hadoop.mapreduce.MneInputFormat; |
| import org.apache.mnemonic.hadoop.mapreduce.MneMapreduceRecordWriter; |
| import org.apache.mnemonic.hadoop.mapreduce.MneOutputFormat; |
| import org.testng.AssertJUnit; |
| import org.testng.annotations.AfterClass; |
| import org.testng.annotations.BeforeClass; |
| import org.testng.annotations.Test; |
| |
| public class MneMapreduceIOTest { |
| private Path m_workdir; |
| private JobConf m_conf; |
| private FileSystem m_fs; |
| private Random m_rand; |
| private TaskAttemptID m_taid; |
| private TaskAttemptContext m_tacontext; |
| private long m_reccnt = 500000L; |
| private long m_sumage = 0L; |
| |
| @BeforeClass |
| public void setUp() throws IOException { |
| m_workdir = new Path( |
| System.getProperty("test.tmp.dir", "target" + File.separator + "test" + File.separator + "tmp")); |
| m_conf = new JobConf(); |
| m_rand = Utils.createRandom(); |
| |
| try { |
| m_fs = FileSystem.getLocal(m_conf).getRaw(); |
| m_fs.delete(m_workdir, true); |
| m_fs.mkdirs(m_workdir); |
| } catch (IOException e) { |
| throw new IllegalStateException("bad fs init", e); |
| } |
| |
| m_taid = new TaskAttemptID("jt", 0, TaskType.MAP, 0, 0); |
| m_tacontext = new TaskAttemptContextImpl(m_conf, m_taid); |
| |
| m_conf.set("mapreduce.output.fileoutputformat.outputdir", m_workdir.toString()); |
| |
| MneConfigHelper.setInputMemServiceName(m_conf, "pmalloc"); |
| MneConfigHelper.setInputSlotKeyId(m_conf, 3L); |
| MneConfigHelper.setInputDurableTypes(m_conf, new DurableType[] {DurableType.DURABLE}); |
| MneConfigHelper.setInputEntityFactoryProxies(m_conf, new Class<?>[] {PersonListEFProxy.class}); |
| MneConfigHelper.setOutputMemServiceName(m_conf, "pmalloc"); |
| MneConfigHelper.setOutputSlotKeyId(m_conf, 3L); |
| MneConfigHelper.setOutputMemPoolSize(m_conf, 1024L * 1024 * 1024 * 4); |
| MneConfigHelper.setOutputDurableTypes(m_conf, new DurableType[] {DurableType.DURABLE}); |
| MneConfigHelper.setOutputEntityFactoryProxies(m_conf, new Class<?>[] {PersonListEFProxy.class}); |
| |
| } |
| |
| @AfterClass |
| public void tearDown() { |
| |
| } |
| |
| @Test(enabled = true) |
| public void testWritePersonData() throws Exception { |
| NullWritable nada = NullWritable.get(); |
| OutputFormat<NullWritable, Person<Long>> outputFormat = new MneOutputFormat<Person<Long>>(); |
| RecordWriter<NullWritable, Person<Long>> writer = outputFormat.getRecordWriter(m_tacontext); |
| Person<Long> person = null; |
| for (int i = 0; i < m_reccnt; ++i) { |
| person = ((MneMapreduceRecordWriter<Person<Long>>) writer).newDurableObjectRecord(); |
| person.setAge((short) m_rand.nextInt(50)); |
| person.setName(String.format("Name: [%s]", Utils.genRandomString()), true); |
| m_sumage += person.getAge(); |
| writer.write(nada, person); |
| } |
| writer.close(m_tacontext); |
| } |
| |
| @Test(enabled = true, dependsOnMethods = { "testWritePersonData" }) |
| public void testReadPersonData() throws Exception { |
| long sumage = 0L; |
| long reccnt = 0L; |
| File folder = new File(m_workdir.toString()); |
| File[] listfiles = folder.listFiles(); |
| for (int idx = 0; idx < listfiles.length; ++idx) { |
| if (listfiles[idx].isFile() |
| && listfiles[idx].getName().endsWith(MneConfigHelper.FILE_EXTENSION)) { |
| System.out.println(String.format("Verifying : %s", listfiles[idx].getName())); |
| FileSplit split = new FileSplit( |
| new Path(m_workdir, listfiles[idx].getName()), 0, 0L, new String[0]); |
| InputFormat<NullWritable, Person<Long>> inputFormat = new MneInputFormat<Person<Long>>(); |
| RecordReader<NullWritable, Person<Long>> reader = inputFormat.createRecordReader( |
| split, m_tacontext); |
| Person<Long> person = null; |
| while (reader.nextKeyValue()) { |
| person = reader.getCurrentValue(); |
| AssertJUnit.assertTrue(person.getAge() < 51); |
| sumage += person.getAge(); |
| ++reccnt; |
| } |
| reader.close(); |
| } |
| } |
| AssertJUnit.assertEquals(m_sumage, sumage); |
| AssertJUnit.assertEquals(m_reccnt, reccnt); |
| System.out.println(String.format("The sum of ages is %d", sumage)); |
| } |
| } |