public static Path getLocalCache(URI cache, Configuration conf,
                                   Path baseDir, boolean isArchive,
                                   long confFileStamp, Path currentWorkDir,
                                   MRAsyncDiskService asyncDiskService)
  throws IOException {
    return getLocalCache(cache, conf,
                         baseDir, null, isArchive,
                         confFileStamp, currentWorkDir,
                         asyncDiskService);
  }
public static Path getLocalCache ( URI cache , Configuration conf , Path baseDir , boolean isArchive , long confFileStamp , Path currentWorkDir , MRAsyncDiskService asyncDiskService ) throws IOException { return getLocalCache ( cache , conf , baseDir , null , isArchive , confFileStamp , currentWorkDir , asyncDiskService ) ; }
Get the locally cached file or archive; it could either be
previously cached (and valid) or copy it from the {@link FileSystem} now.

@param cache the cache to be localized, this should be specified as
new URI(hdfs://hostname:port/absolute_path_to_file#LINKNAME). If no schema
or hostname:port is provided the file is assumed to be in the filesystem
being used in the Configuration
@param conf The Confguration file which contains the filesystem
@param baseDir The base cache Dir where you wnat to localize the files/archives
@param isArchive if the cache is an archive or a file. In case it is an
archive with a .zip or .jar or .tar or .tgz or .tar.gz extension it will
be unzipped/unjarred/untarred automatically
and the directory where the archive is unzipped/unjarred/untarred
is returned as the Path.
In case of a file, the path to the file is returned
@param confFileStamp this is the hdfs file modification timestamp to verify that the
file to be cached hasn't changed since the job started
@param currentWorkDir this is the directory where you would want to create symlinks
for the locally cached files/archives
@return the path to directory where the archives are unjarred in case of archives,
the path to the file where the file is copied locally
@throws IOException