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HadoopShims.java
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HadoopShims.java
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/**
* 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.oozie.hadoop.utils;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import java.io.IOException;
import java.net.URI;
public class HadoopShims {
FileSystem fs;
public HadoopShims(FileSystem fs) {
this.fs = fs;
}
public static boolean isSymlinkSupported() {
return true;
}
public Path getSymLinkTarget(Path p) throws IOException {
try {
//getSymlink doesn't work with fragment name, need to remove fragment before calling getSymlink
Path tempPath = new URI(p.toString()).getFragment() == null ? p : new Path(new URI(p.toString()).getPath());
return fs.getFileLinkStatus(tempPath).getSymlink();
}
catch (java.net.URISyntaxException e) {
throw new IOException(e);
}
}
public boolean isSymlink(Path p) throws IOException {
try {
//isSymlink doesn't work with fragment name, need to remove fragment before checking for symlink
Path tempPath = new URI(p.toString()).getFragment() == null ? p : new Path(new URI(p.toString()).getPath());
return fs.getFileLinkStatus(tempPath).isSymlink();
}
catch (java.net.URISyntaxException e) {
throw new IOException(e);
}
}
public void createSymlink(Path target, Path link, boolean createParent) throws IOException {
fs.createSymlink(target, link, createParent);
}
public static boolean isYARN() {
return true;
}
}