/**
* 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.fs.FileContext;
import org.apache.hadoop.fs.FileContextTestHelper;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.RemoteIterator;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.HdfsConfiguration;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
/**
* Make sure that ViewFs works when the root of an FS is mounted to a ViewFs
* mount point.
*/
public class TestViewFsAtHdfsRoot extends ViewFsBaseTest {
private static MiniDFSCluster cluster;
private static HdfsConfiguration CONF = new HdfsConfiguration();
private static FileContext fc;
@Override
protected FileContextTestHelper createFileContextHelper() {
return new FileContextTestHelper("/tmp/TestViewFsAtHdfsRoot");
}
@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();
fc = FileContext.getFileContext(cluster.getURI(0), CONF);
}
@AfterClass
public static void ClusterShutdownAtEnd() throws Exception {
cluster.shutdown();
}
@Override
@Before
public void setUp() throws Exception {
// create the test root on local_fs
fcTarget = fc;
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 = fc.makeQualified(new Path("/"));
RemoteIterator<FileStatus> dirContents = fc.listStatus(targetTestRoot);
while (dirContents.hasNext()) {
fc.delete(dirContents.next().getPath(), true);
}
}
/**
* This overrides the default implementation since hdfs does have delegation
* tokens.
*/
@Override
int getExpectedDelegationTokenCount() {
return 8;
}
}