81 lines
1.8 KiB
Go
81 lines
1.8 KiB
Go
package engine
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import (
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"context"
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"time"
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)
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// Engine 是所有存储引擎必须实现的基础接口
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type Engine interface {
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// 基本生命周期
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Open() error
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Close() error
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// 数据操作
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WritePoint(ctx context.Context, point DataPoint) error
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WriteBatch(ctx context.Context, points []DataPoint) error
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// 查询操作
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Query(ctx context.Context, query Query) (QueryResult, error)
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// 管理操作
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Flush() error
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Compact() error
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// 监控
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Stats() EngineStats
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// 能力查询
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Capabilities() EngineCapabilities
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}
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// PersistentEngine 提供持久化功能
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type PersistentEngine interface {
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Engine
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Backup(path string) error
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Restore(path string) error
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}
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// ReplicatedEngine 提供复制功能
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type ReplicatedEngine interface {
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Engine
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AddReplica(addr string) error
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RemoveReplica(addr string) error
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}
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// DataPoint 表示一个时间序列数据点
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type DataPoint struct {
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DeviceID string `json:"device_id"`
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MetricCode string `json:"metric_code"`
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Labels map[string]string `json:"labels"`
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Value float64 `json:"value"`
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Timestamp int64 `json:"timestamp"`
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}
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// SeriesID 生成数据点的序列ID
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func (p *DataPoint) SeriesID() string {
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// 简单实现，实际可能需要更复杂的ID生成逻辑
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return p.DeviceID + ":" + p.MetricCode
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}
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// EngineStats 包含引擎的统计信息
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type EngineStats struct {
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PointsCount int64
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SeriesCount int64
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MemoryUsage int64
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LastWriteTime time.Time
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LastCompactTime time.Time
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WriteLatency time.Duration
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QueryLatency time.Duration
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// 其他统计信息...
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}
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// EngineCapabilities 描述引擎支持的功能
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type EngineCapabilities struct {
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SupportsCompression bool
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SupportsPersistence bool
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SupportsReplication bool
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MaxConcurrentWrites int
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// 其他能力指标...
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}
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