/**
* 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.tools;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.io.SequenceFile;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.tools.util.TestDistCpUtils;
import org.apache.hadoop.security.Credentials;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Map;
public class TestFileBasedCopyListing {
private static final Log LOG = LogFactory.getLog(TestFileBasedCopyListing.class);
private static final Credentials CREDENTIALS = new Credentials();
private static final Configuration config = new Configuration();
private static MiniDFSCluster cluster;
private static FileSystem fs;
@BeforeClass
public static void create() throws IOException {
cluster = new MiniDFSCluster.Builder(config).numDataNodes(1).format(true)
.build();
fs = cluster.getFileSystem();
buildExpectedValuesMap();
}
@AfterClass
public static void destroy() {
if (cluster != null) {
cluster.shutdown();
}
}
private static Map<String, String> map = new HashMap<String, String>();
private static void buildExpectedValuesMap() {
map.put("/file1", "/tmp/singlefile1/file1");
map.put("/file2", "/tmp/singlefile2/file2");
map.put("/file3", "/tmp/multifile/file3");
map.put("/file4", "/tmp/multifile/file4");
map.put("/file5", "/tmp/multifile/file5");
map.put("/multifile/file3", "/tmp/multifile/file3");
map.put("/multifile/file4", "/tmp/multifile/file4");
map.put("/multifile/file5", "/tmp/multifile/file5");
map.put("/Ufile3", "/tmp/Umultifile/Ufile3");
map.put("/Ufile4", "/tmp/Umultifile/Ufile4");
map.put("/Ufile5", "/tmp/Umultifile/Ufile5");
map.put("/dir1", "/tmp/singledir/dir1");
map.put("/singledir/dir1", "/tmp/singledir/dir1");
map.put("/dir2", "/tmp/singledir/dir2");
map.put("/singledir/dir2", "/tmp/singledir/dir2");
map.put("/Udir1", "/tmp/Usingledir/Udir1");
map.put("/Udir2", "/tmp/Usingledir/Udir2");
map.put("/dir2/file6", "/tmp/singledir/dir2/file6");
map.put("/singledir/dir2/file6", "/tmp/singledir/dir2/file6");
map.put("/file7", "/tmp/singledir1/dir3/file7");
map.put("/file8", "/tmp/singledir1/dir3/file8");
map.put("/file9", "/tmp/singledir1/dir3/file9");
map.put("/dir3/file7", "/tmp/singledir1/dir3/file7");
map.put("/dir3/file8", "/tmp/singledir1/dir3/file8");
map.put("/dir3/file9", "/tmp/singledir1/dir3/file9");
map.put("/Ufile7", "/tmp/Usingledir1/Udir3/Ufile7");
map.put("/Ufile8", "/tmp/Usingledir1/Udir3/Ufile8");
map.put("/Ufile9", "/tmp/Usingledir1/Udir3/Ufile9");
}
@Test
public void testSingleFileMissingTarget() {
caseSingleFileMissingTarget(false);
caseSingleFileMissingTarget(true);
}
private void caseSingleFileMissingTarget(boolean sync) {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/singlefile1/file1");
createFiles("/tmp/singlefile1/file1");
runTest(listFile, target, sync);
checkResult(listFile, 0);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testSingleFileTargetFile() {
caseSingleFileTargetFile(false);
caseSingleFileTargetFile(true);
}
private void caseSingleFileTargetFile(boolean sync) {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/singlefile1/file1");
createFiles("/tmp/singlefile1/file1", target.toString());
runTest(listFile, target, sync);
checkResult(listFile, 0);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testSingleFileTargetDir() {
caseSingleFileTargetDir(false);
caseSingleFileTargetDir(true);
}
private void caseSingleFileTargetDir(boolean sync) {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/singlefile2/file2");
createFiles("/tmp/singlefile2/file2");
mkdirs(target.toString());
runTest(listFile, target, sync);
checkResult(listFile, 1);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testSingleDirTargetMissing() {
caseSingleDirTargetMissing(false);
caseSingleDirTargetMissing(true);
}
private void caseSingleDirTargetMissing(boolean sync) {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/singledir");
mkdirs("/tmp/singledir/dir1");
runTest(listFile, target, sync);
checkResult(listFile, 1);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testSingleDirTargetPresent() {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/singledir");
mkdirs("/tmp/singledir/dir1");
mkdirs(target.toString());
runTest(listFile, target);
checkResult(listFile, 1);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testUpdateSingleDirTargetPresent() {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/Usingledir");
mkdirs("/tmp/Usingledir/Udir1");
mkdirs(target.toString());
runTest(listFile, target, true);
checkResult(listFile, 1);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testMultiFileTargetPresent() {
caseMultiFileTargetPresent(false);
caseMultiFileTargetPresent(true);
}
private void caseMultiFileTargetPresent(boolean sync) {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/multifile/file3", "/tmp/multifile/file4", "/tmp/multifile/file5");
createFiles("/tmp/multifile/file3", "/tmp/multifile/file4", "/tmp/multifile/file5");
mkdirs(target.toString());
runTest(listFile, target, sync);
checkResult(listFile, 3);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testMultiFileTargetMissing() {
caseMultiFileTargetMissing(false);
caseMultiFileTargetMissing(true);
}
private void caseMultiFileTargetMissing(boolean sync) {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/multifile/file3", "/tmp/multifile/file4", "/tmp/multifile/file5");
createFiles("/tmp/multifile/file3", "/tmp/multifile/file4", "/tmp/multifile/file5");
runTest(listFile, target, sync);
checkResult(listFile, 3);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testMultiDirTargetPresent() {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/multifile", "/tmp/singledir");
createFiles("/tmp/multifile/file3", "/tmp/multifile/file4", "/tmp/multifile/file5");
mkdirs(target.toString(), "/tmp/singledir/dir1");
runTest(listFile, target);
checkResult(listFile, 4);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testUpdateMultiDirTargetPresent() {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/Umultifile", "/tmp/Usingledir");
createFiles("/tmp/Umultifile/Ufile3", "/tmp/Umultifile/Ufile4", "/tmp/Umultifile/Ufile5");
mkdirs(target.toString(), "/tmp/Usingledir/Udir1");
runTest(listFile, target, true);
checkResult(listFile, 4);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testMultiDirTargetMissing() {
caseMultiDirTargetMissing(false);
caseMultiDirTargetMissing(true);
}
private void caseMultiDirTargetMissing(boolean sync) {
try {
Path listFile = new Path("/tmp/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/multifile", "/tmp/singledir");
createFiles("/tmp/multifile/file3", "/tmp/multifile/file4", "/tmp/multifile/file5");
mkdirs("/tmp/singledir/dir1");
runTest(listFile, target, sync);
checkResult(listFile, 4);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
}
}
@Test
public void testGlobTargetMissingSingleLevel() {
caseGlobTargetMissingSingleLevel(false);
caseGlobTargetMissingSingleLevel(true);
}
private void caseGlobTargetMissingSingleLevel(boolean sync) {
try {
Path listFile = new Path("/tmp1/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/*");
createFiles("/tmp/multifile/file3", "/tmp/multifile/file4", "/tmp/multifile/file5");
createFiles("/tmp/singledir/dir2/file6");
runTest(listFile, target, sync);
checkResult(listFile, 5);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
TestDistCpUtils.delete(fs, "/tmp1");
}
}
@Test
public void testGlobTargetMissingMultiLevel() {
caseGlobTargetMissingMultiLevel(false);
caseGlobTargetMissingMultiLevel(true);
}
private void caseGlobTargetMissingMultiLevel(boolean sync) {
try {
Path listFile = new Path("/tmp1/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/*/*");
createFiles("/tmp/multifile/file3", "/tmp/multifile/file4", "/tmp/multifile/file5");
createFiles("/tmp/singledir1/dir3/file7", "/tmp/singledir1/dir3/file8",
"/tmp/singledir1/dir3/file9");
runTest(listFile, target, sync);
checkResult(listFile, 6);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
TestDistCpUtils.delete(fs, "/tmp1");
}
}
@Test
public void testGlobTargetDirMultiLevel() {
try {
Path listFile = new Path("/tmp1/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/*/*");
createFiles("/tmp/multifile/file3", "/tmp/multifile/file4", "/tmp/multifile/file5");
createFiles("/tmp/singledir1/dir3/file7", "/tmp/singledir1/dir3/file8",
"/tmp/singledir1/dir3/file9");
mkdirs(target.toString());
runTest(listFile, target);
checkResult(listFile, 6);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
TestDistCpUtils.delete(fs, "/tmp1");
}
}
@Test
public void testUpdateGlobTargetDirMultiLevel() {
try {
Path listFile = new Path("/tmp1/listing");
Path target = new Path("/tmp/target");
addEntries(listFile, "/tmp/*/*");
createFiles("/tmp/Umultifile/Ufile3", "/tmp/Umultifile/Ufile4", "/tmp/Umultifile/Ufile5");
createFiles("/tmp/Usingledir1/Udir3/Ufile7", "/tmp/Usingledir1/Udir3/Ufile8",
"/tmp/Usingledir1/Udir3/Ufile9");
mkdirs(target.toString());
runTest(listFile, target, true);
checkResult(listFile, 6);
} catch (IOException e) {
LOG.error("Exception encountered while testing build listing", e);
Assert.fail("build listing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp");
TestDistCpUtils.delete(fs, "/tmp1");
}
}
private void addEntries(Path listFile, String... entries) throws IOException {
OutputStream out = fs.create(listFile);
try {
for (String entry : entries){
out.write(entry.getBytes());
out.write("\n".getBytes());
}
} finally {
out.close();
}
}
private void createFiles(String... entries) throws IOException {
for (String entry : entries){
OutputStream out = fs.create(new Path(entry));
try {
out.write(entry.getBytes());
out.write("\n".getBytes());
} finally {
out.close();
}
}
}
private void mkdirs(String... entries) throws IOException {
for (String entry : entries){
fs.mkdirs(new Path(entry));
}
}
private void runTest(Path listFile, Path target) throws IOException {
runTest(listFile, target, true);
}
private void runTest(Path listFile, Path target, boolean sync) throws IOException {
CopyListing listing = new FileBasedCopyListing(config, CREDENTIALS);
DistCpOptions options = new DistCpOptions(listFile, target);
options.setSyncFolder(sync);
listing.buildListing(listFile, options);
}
private void checkResult(Path listFile, int count) throws IOException {
if (count == 0) {
return;
}
int recCount = 0;
SequenceFile.Reader reader = new SequenceFile.Reader(config,
SequenceFile.Reader.file(listFile));
try {
Text relPath = new Text();
FileStatus fileStatus = new FileStatus();
while (reader.next(relPath, fileStatus)) {
Assert.assertEquals(fileStatus.getPath().toUri().getPath(), map.get(relPath.toString()));
recCount++;
}
} finally {
IOUtils.closeStream(reader);
}
Assert.assertEquals(recCount, count);
}
}