agent/handlers/v2/task_container_stats_handler.go
func TaskContainerStatsHandler(state dockerstate.TaskEngineState, statsEngine stats.Engine) func(http.ResponseWriter, *http.Request) {
	return func(w http.ResponseWriter, r *http.Request) {
		taskARN, err := getTaskARNByRequest(r, state)
		if err != nil {
			errResponseJSON, _ := json.Marshal(
				fmt.Sprintf("Unable to get task arn from request: %s", err.Error()))
			utils.WriteJSONToResponse(w, http.StatusBadRequest, errResponseJSON, utils.RequestTypeTaskStats)
			return
		}
		if containerID, ok := utils.GetMuxValueFromRequest(r, statsContainerIDMuxName); ok {
			seelog.Infof("V2 task/container stats handler: writing response for container '%s'", containerID)
			WriteContainerStatsResponse(w, taskARN, containerID, statsEngine)
			return
		}

		seelog.Infof("V2 task/container stats handler: writing response for task '%s'", taskARN)
		WriteTaskStatsResponse(w, taskARN, state, statsEngine)
	}
}
func TaskContainerStatsHandler(state dockerstate.TaskEngineState, statsEngine stats.Engine) func(http.ResponseWriter, *http.Request) {
	return func(w http.ResponseWriter, r *http.Request) {
		taskARN, err := getTaskARNByRequest(r, state)
		if err != nil {
			errResponseJSON, _ := json.Marshal(
				fmt.Sprintf("Unable to get task arn from request: %s", err.Error()))
			utils.WriteJSONToResponse(w, http.StatusBadRequest, errResponseJSON, utils.RequestTypeTaskStats)
			return
		}
		if containerID, ok := utils.GetMuxValueFromRequest(r, statsContainerIDMuxName); ok {
			seelog.Infof("V2 task/container stats handler: writing response for container '%s'", containerID)
			WriteContainerStatsResponse(w, taskARN, containerID, statsEngine)
			return
		}

		seelog.Infof("V2 task/container stats handler: writing response for task '%s'", taskARN)
		WriteTaskStatsResponse(w, taskARN, state, statsEngine)
	}
}
// TaskContainerStatsHandler returns the handler method for handling task and container stats requests.