if ("gz".equalsIgnoreCase(FilenameUtils.getExtension(name))) {
is = new GZIPInputStream(is);
name = FilenameUtils.removeExtension(name);
log.debug(" - from GZIP Archive");
} else if ("bz2".equalsIgnoreCase(FilenameUtils.getExtension(name))) {
is = new BZip2CompressorInputStream(is,
true); //use true as 2nd param (see http://s.apache.org/QbK)
name = FilenameUtils.removeExtension(name);
log.debug(" - from BZip2 Archive");
}// TODO: No Zip Files inside Zip Files supported :o( ^^
Lang format = RDFLanguages.filenameToLang(name);