docs: public void execute(@Param("pipelineId") Long pipelineId, Context context, Navigator nav) throws Exception {
          Channel channel = channelService.findByPipelineId(pipelineId);
          if (channel.getStatus().isStart()) {
              nav.redirectTo(WebConstant.ERROR_FORBIDDEN_Link);
              return;
          }
  
          Pipeline pipeline = pipelineService.findById(pipelineId);
          context.put("pipeline", pipeline);
          context.put("nodes", nodeService.listAll());
      }