String ext;
            if (outputExtension == null) {
                if (StringUtil.isNotBlank(extention)) {
                    ext = "." + extention;
                } else {
                    ext = extention;
                }
            } else {
                ext = outputExtension;
            }

        }
    }

    /**
     * Gets the extractor for the specified file extension.
     *
     * @param ext the file extension
     * @return the extractor for the extension, or null if not found
     */
    private Extractor getExtractor(final String ext) {
        return extractorMap.get(ext);
    }

    /**
     * Gets the output extension for the specified input extension.
     *

				"application/vnd.cendio.thinlinc.clientconf",
				"application/vnd.chemdraw+xml",
				"application/vnd.chipnuts.karaoke-mmd",
				"application/vnd.cinderella",
				"application/vnd.cirpack.isdn-ext",
				"application/vnd.claymore",
				"application/vnd.clonk.c4group",
				"application/vnd.commerce-battelle",
				"application/vnd.commonspace",
				"application/vnd.contact.cmsg",
				"application/vnd.cosmocaller",

    <glob pattern="*.edm"/>
  </mime-type>
  <mime-type type="application/vnd.novadigm.edx">
    <glob pattern="*.edx"/>
  </mime-type>
  <mime-type type="application/vnd.novadigm.ext">
    <glob pattern="*.ext"/>
  </mime-type>

  <!-- =================================================================== -->
  <!-- Open Document Format for Office Applications (OpenDocument) v1.0    -->