GtDataStore/app/cmd/events/internal/logic/handler/vars.go

package handler

import (
	"GtDataStore/app/cmd/events/internal/logic/job"
	"GtDataStore/app/model"
	"context"
	"metawant.greentech.com.cn/gaoyagang/gt-common/rabbitMQ"
	"time"
)

const (
	EVENT_NOTIFY      = "EVENT_NOTIFY"
	EVENT_SINGLE_ITEM = "SINGLE_ITEM_EVENT" // 单点位值事件
	EVENT_MULTI_ITEM  = "MULTI_ITEM_EVENT"  // 多点位值事件

	EVTNE_NOTIFY_KEY_FORMAT = "EVENT:NOFITY:%d:%s" // 事件通知通道 %d: 项目名称 %s: 事件名称
)

type (
	// 事件信息
	eventInfo struct {
		ProjectId  int64     // 项目ID
		DeviceCode string    // 设备位号
		Item       string    // 点位名称
		EventId    int64     // 事件ID
		EventName  string    // 事件名称
		OldValue   string    // 点位旧值
		NewValue   string    // 新值
		Time       time.Time // 新值时间
		MsgTime    time.Time // 消息时间
	}

	EventBindCache struct {
		Expire time.Time
		Data   []model.DcEventBind
	}

	EventBindCacheMap map[string]EventBindCache
)

var (
	eventChan chan eventInfo
	producter *rabbitMQ.Producter

	EventIntervalTable = map[string]time.Duration{
		EVENT_SINGLE_ITEM: 2 * time.Second,
		EVENT_MULTI_ITEM:  60 * time.Second,
	}

	EventHandlerTable = map[string]func(ctx context.Context, task *job.Task, technologyName string) error{
		EVENT_SINGLE_ITEM: EventSingle,
		EVENT_MULTI_ITEM:  EventMulti,
	}

	eventBindCacheTable = EventBindCacheMap{
		EVENT_SINGLE_ITEM: EventBindCache{},
		EVENT_MULTI_ITEM:  EventBindCache{},
	}
)

func (t EventBindCacheMap) GetCache(technologyName string) []model.DcEventBind {
	if cache, ok := t[technologyName]; ok {
		if time.Now().After(cache.Expire) {
			t[technologyName] = EventBindCache{}
			return nil
		}
		return cache.Data
	} else {
		return nil
	}
}

func (t EventBindCacheMap) SetCache(technologyName string, data []model.DcEventBind, expire time.Time) {
	t[technologyName] = EventBindCache{
		Expire: expire,
		Data:   data,
	}
}

func init() {
	eventChan = make(chan eventInfo, 50)
}