private static final void addNamespaceParameterTo(
     ProcessorDefinition<?> procDef, String namespace) {
   if (procDef instanceof ToDefinition) {
     ToDefinition toDef = (ToDefinition) procDef;
     String old_uri = toDef.getUri();
     String new_uri = addNamespaceParameter(old_uri, namespace);
     toDef.setUri(new_uri);
     setEndpointUri(toDef.getEndpoint(), namespace);
   }
   for (ProcessorDefinition<?> procDefChild : procDef.getOutputs()) {
     addNamespaceParameterTo(procDefChild, namespace);
   }
 }