/**
* 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.fs.viewfs;
import java.io.IOException;
import java.net.URISyntaxException;
import javax.security.auth.login.LoginException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FileSystemTestHelper;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
/**
* Make sure that ViewFileSystem works when the root of an FS is mounted to a
* ViewFileSystem mount point.
*/
public class TestViewFileSystemAtHdfsRoot extends ViewFileSystemBaseTest {
private static MiniDFSCluster cluster;
private static final Configuration CONF = new Configuration();
private static FileSystem fHdfs;
@Override
protected FileSystemTestHelper createFileSystemHelper() {
return new FileSystemTestHelper("/tmp/TestViewFileSystemAtHdfsRoot");
}
@BeforeClass
public static void clusterSetupAtBegining() throws IOException,
LoginException, URISyntaxException {
SupportsBlocks = true;
CONF.setBoolean(
DFSConfigKeys.DFS_NAMENODE_DELEGATION_TOKEN_ALWAYS_USE_KEY, true);
cluster = new MiniDFSCluster.Builder(CONF)
.numDataNodes(2)
.build();
cluster.waitClusterUp();
fHdfs = cluster.getFileSystem();
}
@AfterClass
public static void clusterShutdownAtEnd() throws Exception {
if (cluster != null) {
cluster.shutdown();
}
}
@Override
@Before
public void setUp() throws Exception {
fsTarget = fHdfs;
super.setUp();
}
/**
* Override this so that we don't set the targetTestRoot to any path under the
* root of the FS, and so that we don't try to delete the test dir, but rather
* only its contents.
*/
@Override
void initializeTargetTestRoot() throws IOException {
targetTestRoot = fHdfs.makeQualified(new Path("/"));
for (FileStatus status : fHdfs.listStatus(targetTestRoot)) {
fHdfs.delete(status.getPath(), true);
}
}
@Override
int getExpectedDelegationTokenCount() {
return 1; // all point to the same fs so 1 unique token
}
@Override
int getExpectedDelegationTokenCountWithCredentials() {
return 1;
}
}