/**
* 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.URI;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FileSystemTestHelper;
import org.apache.hadoop.fs.FsConstants;
import org.apache.hadoop.fs.LocalFileSystem;
import org.apache.hadoop.fs.Path;
import org.junit.*;
import static org.junit.Assert.*;
/**
* Verify that viewfs propagates certain methods to the underlying fs
*/
public class TestViewFileSystemDelegation { //extends ViewFileSystemTestSetup {
static Configuration conf;
static FileSystem viewFs;
static FakeFileSystem fs1;
static FakeFileSystem fs2;
@BeforeClass
public static void setup() throws Exception {
conf = ViewFileSystemTestSetup.createConfig();
fs1 = setupFileSystem(new URI("fs1:/"), FakeFileSystem.class);
fs2 = setupFileSystem(new URI("fs2:/"), FakeFileSystem.class);
viewFs = FileSystem.get(FsConstants.VIEWFS_URI, conf);
}
static FakeFileSystem setupFileSystem(URI uri, Class clazz)
throws Exception {
String scheme = uri.getScheme();
conf.set("fs."+scheme+".impl", clazz.getName());
FakeFileSystem fs = (FakeFileSystem)FileSystem.get(uri, conf);
assertEquals(uri, fs.getUri());
Path targetPath = new FileSystemTestHelper().getAbsoluteTestRootPath(fs);
ConfigUtil.addLink(conf, "/mounts/"+scheme, targetPath.toUri());
return fs;
}
@Test
public void testSanity() {
assertEquals("fs1:/", fs1.getUri().toString());
assertEquals("fs2:/", fs2.getUri().toString());
}
@Test
public void testVerifyChecksum() throws Exception {
checkVerifyChecksum(false);
checkVerifyChecksum(true);
}
void checkVerifyChecksum(boolean flag) {
viewFs.setVerifyChecksum(flag);
assertEquals(flag, fs1.getVerifyChecksum());
assertEquals(flag, fs2.getVerifyChecksum());
}
static class FakeFileSystem extends LocalFileSystem {
boolean verifyChecksum = true;
URI uri;
@Override
public void initialize(URI uri, Configuration conf) throws IOException {
super.initialize(uri, conf);
this.uri = uri;
}
@Override
public URI getUri() {
return uri;
}
@Override
public void setVerifyChecksum(boolean verifyChecksum) {
this.verifyChecksum = verifyChecksum;
}
public boolean getVerifyChecksum(){
return verifyChecksum;
}
}
}