sparrow/services/timer-service/internal/executer.go

package internal

import (
	"sparrow/pkg/rpcs"
	"sparrow/pkg/rule"
	"sparrow/pkg/server"
	"time"
)

// TaskExecutor 任务执行器，用来执行具体的任务动作
type TaskExecutor struct {
	Actions []*rule.TaskAction
}

func NewTaskExecutor(actions []*rule.TaskAction) *TaskExecutor {
	return &TaskExecutor{
		Actions: actions,
	}
}

func (a *TaskExecutor) Do() error {
	for _, action := range a.Actions {
		switch action.ActionExecutor {
		case "delay":
			return a.doDelayTask(action.EntityId, action.SubEntityId, action.ExecutorProperty)
		case "device_issue":
			return a.doDeviceIssueTask(action.EntityId, action.SubEntityId, action.ExecutorProperty)
		}
	}
	return nil
}

func (a *TaskExecutor) doDeviceIssueTask(entityId, subEntityId string, action *rule.TaskExecutorProperty) error {
	// 调用设备接入服务
	rpchost, err := getAccessRPCHost(entityId)
	if err != nil {
		return err
	}
	args := rpcs.ArgsSendCommand{
		DeviceId:  entityId,
		SubDevice: subEntityId,
		Cmd:       action.FunctionCode,
		Params:    action.FunctionValue,
	}
	reply := &rpcs.ReplyEmptyResult{}
	server.Log.Debugf("do Device Issue task args:%v", args)
	return server.RPCCallByHost(rpchost, "Access.SendCommand", args, reply)
}

// 执行延时任务
func (a *TaskExecutor) doDelayTask(entityId, subEntityId string, action *rule.TaskExecutorProperty) error {
	time.Sleep(time.Duration(action.DelaySeconds) * time.Second)
	return a.doDeviceIssueTask(entityId, subEntityId, action)
}

func getAccessRPCHost(deviceid string) (string, error) {
	args := rpcs.ArgsGetDeviceOnlineStatus{
		Id: deviceid,
	}
	reply := &rpcs.ReplyGetDeviceOnlineStatus{}
	err := server.RPCCallByName(nil, rpcs.DeviceManagerName, "DeviceManager.GetDeviceOnlineStatus", args, reply)
	if err != nil {
		return "", err
	}

	return reply.AccessRPCHost, nil
}