实现基本的监控图表

internal/db/models/node_value_dao.go

@@ -0,0 +1,91 @@
+package models
+
+import (
+	"github.com/TeaOSLab/EdgeAPI/internal/errors"
+	"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/iwind/TeaGo/Tea"
+	"github.com/iwind/TeaGo/dbs"
+	"github.com/iwind/TeaGo/maps"
+	timeutil "github.com/iwind/TeaGo/utils/time"
+	"time"
+)
+
+type NodeValueDAO dbs.DAO
+
+func NewNodeValueDAO() *NodeValueDAO {
+	return dbs.NewDAO(&NodeValueDAO{
+		DAOObject: dbs.DAOObject{
+			DB:     Tea.Env,
+			Table:  "edgeNodeValues",
+			Model:  new(NodeValue),
+			PkName: "id",
+		},
+	}).(*NodeValueDAO)
+}
+
+var SharedNodeValueDAO *NodeValueDAO
+
+func init() {
+	dbs.OnReady(func() {
+		SharedNodeValueDAO = NewNodeValueDAO()
+	})
+}
+
+// CreateValue 创建值
+func (this *NodeValueDAO) CreateValue(tx *dbs.Tx, role NodeRole, nodeId int64, item string, valueJSON []byte, createdAt int64) error {
+	day := timeutil.FormatTime("Ymd", createdAt)
+	hour := timeutil.FormatTime("YmdH", createdAt)
+	minute := timeutil.FormatTime("YmdHi", createdAt)
+
+	return this.Query(tx).
+		InsertOrUpdateQuickly(maps.Map{
+			"role":      role,
+			"nodeId":    nodeId,
+			"item":      item,
+			"value":     valueJSON,
+			"createdAt": createdAt,
+			"day":       day,
+			"hour":      hour,
+			"minute":    minute,
+		}, maps.Map{
+			"value": valueJSON,
+		})
+}
+
+// DeleteExpiredValues 清除数据
+func (this *NodeValueDAO) DeleteExpiredValues(tx *dbs.Tx) error {
+	// 删除N天之前的所有数据
+	expiredDays := 100
+	day := timeutil.Format("Ymd", time.Now().AddDate(0, 0, -expiredDays))
+	_, err := this.Query(tx).
+		Where("day<:day").
+		Param("day", day).
+		Delete()
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// ListValues 列出最近的的数据
+func (this *NodeValueDAO) ListValues(tx *dbs.Tx, role string, nodeId int64, item string, timeRange nodeconfigs.NodeValueRange) (result []*NodeValue, err error) {
+	query := this.Query(tx).
+		Attr("role", role).
+		Attr("nodeId", nodeId).
+		Attr("item", item)
+
+	switch timeRange {
+	// TODO 支持更多的时间范围
+	case nodeconfigs.NodeValueRangeMinute:
+		fromMinute := timeutil.FormatTime("YmdHi", time.Now().Unix()-3600) // 一个小时之前的
+		query.Gte("minute", fromMinute)
+	default:
+		err = errors.New("invalid 'range' value: '" + timeRange + "'")
+		return
+	}
+
+	_, err = query.Slice(&result).
+		FindAll()
+	return
+}