Documentation
¶
Overview ¶
Package propagator provides metadata propagation implementation for gorp framework. Supports prefix-based filtering and constant metadata injection. Used for HTTP/gRPC cross-boundary metadata propagation.
传播器包提供元数据传播实现，用于 gorp 框架。 支持前缀过滤和常量元数据注入。 用于 HTTP/gRPC 跨边界元数据传播。
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type DefaultPropagator ¶
type DefaultPropagator struct {
// contains filtered or unexported fields
}
DefaultPropagator implements MetadataPropagator with prefix filtering. Core logic: Filter keys by prefix, inject constant metadata, propagate client/server metadata.
DefaultPropagator 实现带前缀过滤的 MetadataPropagator。 核心逻辑：按前缀过滤键、注入常量元数据、传播客户端/服务端元数据。
func NewDefaultPropagator ¶
func NewDefaultPropagator(prefix []string, constant map[string]string) *DefaultPropagator
NewDefaultPropagator creates a propagator with prefix and constant metadata. Core logic: Set default prefix if empty, initialize constant map.
NewDefaultPropagator 创建带前缀和常量元数据的传播器。 核心逻辑：若前缀为空则设置默认值、初始化常量 map。
func (*DefaultPropagator) Extract ¶
func (p *DefaultPropagator) Extract(ctx context.Context, carrier transportcontract.MetadataCarrier) context.Context
Extract extracts metadata from carrier into context for incoming request. Core logic: Extract keys matching prefix, create server context with metadata.
Extract 从 carrier 提取元数据到 context，用于 incoming 请求。 核心逻辑：提取匹配前缀的键、创建携带元数据的 server context。
func (*DefaultPropagator) Inject ¶
func (p *DefaultPropagator) Inject(ctx context.Context, carrier transportcontract.MetadataCarrier)
Inject injects metadata into carrier for outgoing request. Core logic: Inject constant metadata, then client/server metadata matching prefix.
Inject 将元数据注入 carrier，用于 outgoing 请求。 核心逻辑：注入常量元数据、然后注入匹配前缀的客户端/服务端元数据。
type NoopPropagator ¶
type NoopPropagator struct{}
NoopPropagator is a no-op implementation of MetadataPropagator. Used when metadata propagation is disabled.
NoopPropagator 是 MetadataPropagator 的空实现。 用于禁用元数据传播的场景。
func NewNoopPropagator ¶
func NewNoopPropagator() *NoopPropagator
NewNoopPropagator creates a no-op propagator.
NewNoopPropagator 创建空传播器。
func (*NoopPropagator) Extract ¶
func (p *NoopPropagator) Extract(ctx context.Context, carrier transportcontract.MetadataCarrier) context.Context
Extract returns original context unchanged.
Extract 返回原始 context 不做修改。
func (*NoopPropagator) Inject ¶
func (p *NoopPropagator) Inject(ctx context.Context, carrier transportcontract.MetadataCarrier)
Inject does nothing (no-op).
Inject 无操作。
Source Files