@Override
public void copyFromFileSystem(final String hdfsPath, final File localPath) {
if (isRunningAsUser()) {
super.copyFromFileSystem(hdfsPath, localPath);
return;
}
UserGroupInformation uig = getCurrentUserGroup();
try {
// if(true) throw new UnsupportedOperationException("Uncomment when using version
// 1.0.*");
uig.doAs(
new PrivilegedExceptionAction<Void>() {
public Void run() throws Exception {
FileSystem fileSystem = getDFS();
Path src = new Path(hdfsPath);
Path dst = new Path(localPath.getAbsolutePath());
fileSystem.copyToLocalFile(src, dst);
return null;
}
});
} catch (Exception e) {
throw new RuntimeException(
"Failed to copyFromFileSystem because "
+ e.getMessage()
+ " exception of class "
+ e.getClass(),
e);
}
}
