/**
* 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.hadoop.fs.viewfs.*;
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.tools.util.TestDistCpUtils;
import org.apache.hadoop.fs.FsConstants;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URI;
import java.net.URISyntaxException;
public class TestDistCpViewFs {
private static final Log LOG = LogFactory.getLog(TestDistCpViewFs.class);
private static FileSystem fs;
private static Path listFile;
private static Path target;
private static String root;
private static Configuration getConf() throws URISyntaxException {
Configuration conf = new Configuration();
conf.set("mapred.job.tracker", "local");
conf.set("fs.default.name", "file:///");
return conf;
}
@BeforeClass
public static void setup() throws URISyntaxException{
try {
Path fswd = FileSystem.get(getConf()).getWorkingDirectory();
Configuration vConf = ViewFileSystemTestSetup.createConfig(false);
ConfigUtil.addLink(vConf, "/usr", new URI(fswd.toString()));
fs = FileSystem.get(FsConstants.VIEWFS_URI, vConf);
fs.setWorkingDirectory(new Path("/usr"));
listFile = new Path("target/tmp/listing").makeQualified(fs.getUri(),
fs.getWorkingDirectory());
target = new Path("target/tmp/target").makeQualified(fs.getUri(),
fs.getWorkingDirectory());
root = new Path("target/tmp").makeQualified(fs.getUri(),
fs.getWorkingDirectory()).toString();
TestDistCpUtils.delete(fs, root);
} catch (IOException e) {
LOG.error("Exception encountered ", e);
}
}
@Test
public void testSingleFileMissingTarget() {
caseSingleFileMissingTarget(false);
caseSingleFileMissingTarget(true);
}
private void caseSingleFileMissingTarget(boolean sync) {
try {
addEntries(listFile, "singlefile1/file1");
createFiles("singlefile1/file1");
runTest(listFile, target, sync);
checkResult(target, 1);
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testSingleFileTargetFile() {
caseSingleFileTargetFile(false);
caseSingleFileTargetFile(true);
}
private void caseSingleFileTargetFile(boolean sync) {
try {
addEntries(listFile, "singlefile1/file1");
createFiles("singlefile1/file1", target.toString());
runTest(listFile, target, sync);
checkResult(target, 1);
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testSingleFileTargetDir() {
caseSingleFileTargetDir(false);
caseSingleFileTargetDir(true);
}
private void caseSingleFileTargetDir(boolean sync) {
try {
addEntries(listFile, "singlefile2/file2");
createFiles("singlefile2/file2");
mkdirs(target.toString());
runTest(listFile, target, sync);
checkResult(target, 1, "file2");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testSingleDirTargetMissing() {
caseSingleDirTargetMissing(false);
caseSingleDirTargetMissing(true);
}
private void caseSingleDirTargetMissing(boolean sync) {
try {
addEntries(listFile, "singledir");
mkdirs(root + "/singledir/dir1");
runTest(listFile, target, sync);
checkResult(target, 1, "dir1");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testSingleDirTargetPresent() {
try {
addEntries(listFile, "singledir");
mkdirs(root + "/singledir/dir1");
mkdirs(target.toString());
runTest(listFile, target, false);
checkResult(target, 1, "singledir/dir1");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testUpdateSingleDirTargetPresent() {
try {
addEntries(listFile, "Usingledir");
mkdirs(root + "/Usingledir/Udir1");
mkdirs(target.toString());
runTest(listFile, target, true);
checkResult(target, 1, "Udir1");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testMultiFileTargetPresent() {
caseMultiFileTargetPresent(false);
caseMultiFileTargetPresent(true);
}
private void caseMultiFileTargetPresent(boolean sync) {
try {
addEntries(listFile, "multifile/file3", "multifile/file4", "multifile/file5");
createFiles("multifile/file3", "multifile/file4", "multifile/file5");
mkdirs(target.toString());
runTest(listFile, target, sync);
checkResult(target, 3, "file3", "file4", "file5");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testMultiFileTargetMissing() {
caseMultiFileTargetMissing(false);
caseMultiFileTargetMissing(true);
}
private void caseMultiFileTargetMissing(boolean sync) {
try {
addEntries(listFile, "multifile/file3", "multifile/file4", "multifile/file5");
createFiles("multifile/file3", "multifile/file4", "multifile/file5");
runTest(listFile, target, sync);
checkResult(target, 3, "file3", "file4", "file5");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testMultiDirTargetPresent() {
try {
addEntries(listFile, "multifile", "singledir");
createFiles("multifile/file3", "multifile/file4", "multifile/file5");
mkdirs(target.toString(), root + "/singledir/dir1");
runTest(listFile, target, false);
checkResult(target, 2, "multifile/file3", "multifile/file4", "multifile/file5", "singledir/dir1");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testUpdateMultiDirTargetPresent() {
try {
addEntries(listFile, "Umultifile", "Usingledir");
createFiles("Umultifile/Ufile3", "Umultifile/Ufile4", "Umultifile/Ufile5");
mkdirs(target.toString(), root + "/Usingledir/Udir1");
runTest(listFile, target, true);
checkResult(target, 4, "Ufile3", "Ufile4", "Ufile5", "Udir1");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testMultiDirTargetMissing() {
try {
addEntries(listFile, "multifile", "singledir");
createFiles("multifile/file3", "multifile/file4", "multifile/file5");
mkdirs(root + "/singledir/dir1");
runTest(listFile, target, false);
checkResult(target, 2, "multifile/file3", "multifile/file4",
"multifile/file5", "singledir/dir1");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testUpdateMultiDirTargetMissing() {
try {
addEntries(listFile, "multifile", "singledir");
createFiles("multifile/file3", "multifile/file4", "multifile/file5");
mkdirs(root + "/singledir/dir1");
runTest(listFile, target, true);
checkResult(target, 4, "file3", "file4", "file5", "dir1");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
}
}
@Test
public void testGlobTargetMissingSingleLevel() {
try {
Path listFile = new Path("target/tmp1/listing").makeQualified(fs.getUri(),
fs.getWorkingDirectory());
addEntries(listFile, "*");
createFiles("multifile/file3", "multifile/file4", "multifile/file5");
createFiles("singledir/dir2/file6");
runTest(listFile, target, false);
checkResult(target, 2, "multifile/file3", "multifile/file4", "multifile/file5",
"singledir/dir2/file6");
} catch (IOException e) {
LOG.error("Exception encountered while testing distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
TestDistCpUtils.delete(fs, "target/tmp1");
}
}
@Test
public void testUpdateGlobTargetMissingSingleLevel() {
try {
Path listFile = new Path("target/tmp1/listing").makeQualified(fs.getUri(),
fs.getWorkingDirectory());
addEntries(listFile, "*");
createFiles("multifile/file3", "multifile/file4", "multifile/file5");
createFiles("singledir/dir2/file6");
runTest(listFile, target, true);
checkResult(target, 4, "file3", "file4", "file5", "dir2/file6");
} catch (IOException e) {
LOG.error("Exception encountered while running distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
TestDistCpUtils.delete(fs, "target/tmp1");
}
}
@Test
public void testGlobTargetMissingMultiLevel() {
try {
Path listFile = new Path("target/tmp1/listing").makeQualified(fs.getUri(),
fs.getWorkingDirectory());
addEntries(listFile, "*/*");
createFiles("multifile/file3", "multifile/file4", "multifile/file5");
createFiles("singledir1/dir3/file7", "singledir1/dir3/file8",
"singledir1/dir3/file9");
runTest(listFile, target, false);
checkResult(target, 4, "file3", "file4", "file5",
"dir3/file7", "dir3/file8", "dir3/file9");
} catch (IOException e) {
LOG.error("Exception encountered while running distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
TestDistCpUtils.delete(fs, "target/tmp1");
}
}
@Test
public void testUpdateGlobTargetMissingMultiLevel() {
try {
Path listFile = new Path("target/tmp1/listing").makeQualified(fs.getUri(),
fs.getWorkingDirectory());
addEntries(listFile, "*/*");
createFiles("multifile/file3", "multifile/file4", "multifile/file5");
createFiles("singledir1/dir3/file7", "singledir1/dir3/file8",
"singledir1/dir3/file9");
runTest(listFile, target, true);
checkResult(target, 6, "file3", "file4", "file5",
"file7", "file8", "file9");
} catch (IOException e) {
LOG.error("Exception encountered while running distcp", e);
Assert.fail("distcp failure");
} finally {
TestDistCpUtils.delete(fs, root);
TestDistCpUtils.delete(fs, "target/tmp1");
}
}
private void addEntries(Path listFile, String... entries) throws IOException {
OutputStream out = fs.create(listFile);
try {
for (String entry : entries){
out.write((root + "/" + entry).getBytes());
out.write("\n".getBytes());
}
} finally {
out.close();
}
}
private void createFiles(String... entries) throws IOException {
String e;
for (String entry : entries){
if ((new Path(entry)).isAbsolute())
{
e = entry;
}
else
{
e = root + "/" + entry;
}
OutputStream out = fs.create(new Path(e));
try {
out.write((e).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, boolean sync) throws IOException {
DistCpOptions options = new DistCpOptions(listFile, target);
options.setSyncFolder(sync);
try {
new DistCp(getConf(), options).execute();
} catch (Exception e) {
LOG.error("Exception encountered ", e);
throw new IOException(e);
}
}
private void checkResult(Path target, int count, String... relPaths) throws IOException {
Assert.assertEquals(count, fs.listStatus(target).length);
if (relPaths == null || relPaths.length == 0) {
Assert.assertTrue(target.toString(), fs.exists(target));
return;
}
for (String relPath : relPaths) {
Assert.assertTrue(new Path(target, relPath).toString(), fs.exists(new Path(target, relPath)));
}
}
}