code: @Override
  	public Response getCommandInstructions( String appName, String commandName ) {
  
  		this.logger.fine("Request: get instructions from " + commandName + " in the " + appName + " application.");
  		Response response;
  		try {
  			Application app = this.manager.applicationMngr().findApplicationByName( appName );
  			String res;
  			if( app == null )
  				response = Response.status( Status.NOT_FOUND ).build();
  			else if( Utils.isEmptyOrWhitespaces( res = this.manager.commandsMngr().getCommandInstructions( app, commandName )))
  				response = Response.status( Status.NO_CONTENT ).build();
  			else
  				response = Response.ok( res ).build();
  
  		} catch( IOException e ) {
  			response = RestServicesUtils.handleError(
  					Status.INTERNAL_SERVER_ERROR,
  					new RestError( ErrorCode.REST_UNDETAILED_ERROR, e ),
  					lang( this.manager )).build();
  		}
  
  		return response;
  	}
docs: /*
  (non-Javadoc)
  @see net.roboconf.dm.rest.services.internal.resources.IApplicationResource
  #getCommandInstructions(java.lang.String, java.lang.String)