keys

package
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Published: Feb 1, 2023 License: Apache-2.0, Apache-2.0 Imports: 6 Imported by: 0

Documentation

Overview

Package keys provides functionality required to build RLS request keys.

Index

Constants

This section is empty.

Variables

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Functions

This section is empty.

Types

type BuilderMap

type BuilderMap map[string]builder

BuilderMap maps from request path to the key builder for that path.

func MakeBuilderMap

func MakeBuilderMap(cfg *rlspb.RouteLookupConfig) (BuilderMap, error)

MakeBuilderMap parses the provided RouteLookupConfig proto and returns a map from paths to key builders.

func (BuilderMap) Equal

func (bm BuilderMap) Equal(am BuilderMap) bool

Equal reports whether bm and am represent equivalent BuilderMaps.

func (BuilderMap) RLSKey

func (bm BuilderMap) RLSKey(md metadata.MD, host, path string) KeyMap

RLSKey builds the RLS keys to be used for the given request, identified by the request path and the request headers stored in metadata.

type KeyMap

type KeyMap struct {
	// Map is the representation of an RLS key as a Go map. This is used when
	// an actual RLS request is to be sent out on the wire, since the
	// RouteLookupRequest proto expects a Go map.
	Map map[string]string
	// Str is the representation of an RLS key as a string, sorted by keys.
	// Since the RLS keys are part of the cache key in the request cache
	// maintained by the RLS balancer, and Go maps cannot be used as keys for
	// Go maps (the cache is implemented as a map), we need a stringified
	// version of it.
	Str string
}

KeyMap represents the RLS keys to be used for a request.

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