MAPREDUCE-4907. Ammendment, forgot to svn add testcase in original commit

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1431510 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Alejandro Abdelnur 2013-01-10 17:27:58 +00:00
parent 2bd35d8de3
commit d7c48409e3
1 changed files with 114 additions and 0 deletions

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@ -0,0 +1,114 @@
/**
* 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.mapreduce.filecache;
import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.SequenceFile;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.SequenceFile.CompressionType;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class TestClientDistributedCacheManager {
private static final Log LOG = LogFactory.getLog(
TestClientDistributedCacheManager.class);
private static final String TEST_ROOT_DIR =
new File(System.getProperty("test.build.data", "/tmp")).toURI()
.toString().replace(' ', '+');
private FileSystem fs;
private Path firstCacheFile;
private Path secondCacheFile;
private Configuration conf;
@Before
public void setup() throws IOException {
conf = new Configuration();
fs = FileSystem.get(conf);
firstCacheFile = new Path(TEST_ROOT_DIR, "firstcachefile");
secondCacheFile = new Path(TEST_ROOT_DIR, "secondcachefile");
createTempFile(firstCacheFile, conf);
createTempFile(secondCacheFile, conf);
}
@After
public void tearDown() throws IOException {
if (!fs.delete(firstCacheFile, false)) {
LOG.warn("Failed to delete firstcachefile");
}
if (!fs.delete(secondCacheFile, false)) {
LOG.warn("Failed to delete secondcachefile");
}
}
@Test
public void testDetermineTimestamps() throws IOException {
Job job = Job.getInstance(conf);
job.addCacheFile(firstCacheFile.toUri());
job.addCacheFile(secondCacheFile.toUri());
Configuration jobConf = job.getConfiguration();
Map<URI, FileStatus> statCache = new HashMap<URI, FileStatus>();
ClientDistributedCacheManager.determineTimestamps(jobConf, statCache);
FileStatus firstStatus = statCache.get(firstCacheFile.toUri());
FileStatus secondStatus = statCache.get(secondCacheFile.toUri());
Assert.assertNotNull(firstStatus);
Assert.assertNotNull(secondStatus);
Assert.assertEquals(2, statCache.size());
String expected = firstStatus.getModificationTime() + ","
+ secondStatus.getModificationTime();
Assert.assertEquals(expected, jobConf.get(MRJobConfig.CACHE_FILE_TIMESTAMPS));
}
@SuppressWarnings("deprecation")
void createTempFile(Path p, Configuration conf) throws IOException {
SequenceFile.Writer writer = null;
try {
writer = SequenceFile.createWriter(fs, conf, p,
Text.class, Text.class,
CompressionType.NONE);
writer.append(new Text("text"), new Text("moretext"));
} catch(Exception e) {
throw new IOException(e.getLocalizedMessage());
} finally {
if (writer != null) {
writer.close();
}
writer = null;
}
LOG.info("created: " + p);
}
}