code: @Override
  	public Response getCommandHistoryNumberOfPages( String applicationName, int itemsPerPage ) {
  
  		this.logger.fine("Request: get the number of pages for commands history.");
  		int number = this.manager.commandsMngr().getHistoryNumberOfPages( itemsPerPage, applicationName );
  		return Response.ok( String.valueOf( number )).build();
  	}
docs: /*
  (non-Javadoc)
  @see net.roboconf.dm.rest.services.internal.resources.IHistoryResource
  #getCommandHistoryNumberOfPages(java.lang.String, int)