public void writePrefixMap() {
   ShortFormProvider sfp = getShortFormProvider();
   if (!(sfp instanceof ManchesterOWLSyntaxPrefixNameShortFormProvider)) {
     return;
   }
   ManchesterOWLSyntaxPrefixNameShortFormProvider prov =
       (ManchesterOWLSyntaxPrefixNameShortFormProvider) sfp;
   Map<String, String> prefixMap = new HashMap<String, String>();
   for (String prefixName : prov.getPrefixManager().getPrefixName2PrefixMap().keySet()) {
     String prefix = prov.getPrefixManager().getPrefix(prefixName);
     prefixMap.put(prefixName, prefix);
     write(PREFIX.toString());
     write(": ");
     write(prefixName);
     write(" ");
     writeFullURI(prefix);
     writeNewLine();
   }
   if (!prefixMap.isEmpty()) {
     writeNewLine();
     writeNewLine();
   }
 }
 @Override
 public String getHelpContextId() {
   return PREFIX.concat("adapter_hbasethrift");
 }