Documentation ¶
Index ¶
- Variables
- func RegisterRouteLookupServiceServer(s grpc.ServiceRegistrar, srv RouteLookupServiceServer)
- type GrpcKeyBuilder
- func (*GrpcKeyBuilder) Descriptor() ([]byte, []int)deprecated
- func (x *GrpcKeyBuilder) GetHeaders() []*NameMatcher
- func (x *GrpcKeyBuilder) GetNames() []*GrpcKeyBuilder_Name
- func (*GrpcKeyBuilder) ProtoMessage()
- func (x *GrpcKeyBuilder) ProtoReflect() protoreflect.Message
- func (x *GrpcKeyBuilder) Reset()
- func (x *GrpcKeyBuilder) String() string
- type GrpcKeyBuilder_Name
- func (*GrpcKeyBuilder_Name) Descriptor() ([]byte, []int)deprecated
- func (x *GrpcKeyBuilder_Name) GetMethod() string
- func (x *GrpcKeyBuilder_Name) GetService() string
- func (*GrpcKeyBuilder_Name) ProtoMessage()
- func (x *GrpcKeyBuilder_Name) ProtoReflect() protoreflect.Message
- func (x *GrpcKeyBuilder_Name) Reset()
- func (x *GrpcKeyBuilder_Name) String() string
- type HttpKeyBuilder
- func (*HttpKeyBuilder) Descriptor() ([]byte, []int)deprecated
- func (x *HttpKeyBuilder) GetHeaders() []*NameMatcher
- func (x *HttpKeyBuilder) GetHostPatterns() []string
- func (x *HttpKeyBuilder) GetPathPatterns() []string
- func (x *HttpKeyBuilder) GetQueryParameters() []*NameMatcher
- func (*HttpKeyBuilder) ProtoMessage()
- func (x *HttpKeyBuilder) ProtoReflect() protoreflect.Message
- func (x *HttpKeyBuilder) Reset()
- func (x *HttpKeyBuilder) String() string
- type NameMatcher
- func (*NameMatcher) Descriptor() ([]byte, []int)deprecated
- func (x *NameMatcher) GetKey() string
- func (x *NameMatcher) GetNames() []string
- func (x *NameMatcher) GetRequiredMatch() bool
- func (*NameMatcher) ProtoMessage()
- func (x *NameMatcher) ProtoReflect() protoreflect.Message
- func (x *NameMatcher) Reset()
- func (x *NameMatcher) String() string
- type RouteLookupConfig
- func (*RouteLookupConfig) Descriptor() ([]byte, []int)deprecated
- func (x *RouteLookupConfig) GetCacheSizeBytes() int64
- func (x *RouteLookupConfig) GetDefaultTarget() string
- func (x *RouteLookupConfig) GetGrpcKeybuilders() []*GrpcKeyBuilder
- func (x *RouteLookupConfig) GetHttpKeybuilders() []*HttpKeyBuilder
- func (x *RouteLookupConfig) GetLookupService() string
- func (x *RouteLookupConfig) GetLookupServiceTimeout() *duration.Duration
- func (x *RouteLookupConfig) GetMaxAge() *duration.Duration
- func (x *RouteLookupConfig) GetStaleAge() *duration.Duration
- func (x *RouteLookupConfig) GetValidTargets() []string
- func (*RouteLookupConfig) ProtoMessage()
- func (x *RouteLookupConfig) ProtoReflect() protoreflect.Message
- func (x *RouteLookupConfig) Reset()
- func (x *RouteLookupConfig) String() string
- type RouteLookupRequest
- func (*RouteLookupRequest) Descriptor() ([]byte, []int)deprecated
- func (x *RouteLookupRequest) GetKeyMap() map[string]string
- func (x *RouteLookupRequest) GetPath() string
- func (x *RouteLookupRequest) GetServer() string
- func (x *RouteLookupRequest) GetTargetType() string
- func (*RouteLookupRequest) ProtoMessage()
- func (x *RouteLookupRequest) ProtoReflect() protoreflect.Message
- func (x *RouteLookupRequest) Reset()
- func (x *RouteLookupRequest) String() string
- type RouteLookupResponse
- func (*RouteLookupResponse) Descriptor() ([]byte, []int)deprecated
- func (x *RouteLookupResponse) GetHeaderData() string
- func (x *RouteLookupResponse) GetTargets() []string
- func (*RouteLookupResponse) ProtoMessage()
- func (x *RouteLookupResponse) ProtoReflect() protoreflect.Message
- func (x *RouteLookupResponse) Reset()
- func (x *RouteLookupResponse) String() string
- type RouteLookupServiceClient
- type RouteLookupServiceServer
- type UnimplementedRouteLookupServiceServer
- type UnsafeRouteLookupServiceServer
Constants ¶
This section is empty.
Variables ¶
var File_grpc_lookup_v1_rls_config_proto protoreflect.FileDescriptor
var File_grpc_lookup_v1_rls_proto protoreflect.FileDescriptor
Functions ¶
func RegisterRouteLookupServiceServer ¶
func RegisterRouteLookupServiceServer(s grpc.ServiceRegistrar, srv RouteLookupServiceServer)
Types ¶
type GrpcKeyBuilder ¶
type GrpcKeyBuilder struct { Names []*GrpcKeyBuilder_Name `protobuf:"bytes,1,rep,name=names,proto3" json:"names,omitempty"` // Extract keys from all listed headers. // For gRPC, it is an error to specify "required_match" on the NameMatcher // protos. Headers []*NameMatcher `protobuf:"bytes,2,rep,name=headers,proto3" json:"headers,omitempty"` // contains filtered or unexported fields }
A GrpcKeyBuilder applies to a given gRPC service, name, and headers.
func (*GrpcKeyBuilder) Descriptor
deprecated
func (*GrpcKeyBuilder) Descriptor() ([]byte, []int)
Deprecated: Use GrpcKeyBuilder.ProtoReflect.Descriptor instead.
func (*GrpcKeyBuilder) GetHeaders ¶
func (x *GrpcKeyBuilder) GetHeaders() []*NameMatcher
func (*GrpcKeyBuilder) GetNames ¶
func (x *GrpcKeyBuilder) GetNames() []*GrpcKeyBuilder_Name
func (*GrpcKeyBuilder) ProtoMessage ¶
func (*GrpcKeyBuilder) ProtoMessage()
func (*GrpcKeyBuilder) ProtoReflect ¶
func (x *GrpcKeyBuilder) ProtoReflect() protoreflect.Message
func (*GrpcKeyBuilder) Reset ¶
func (x *GrpcKeyBuilder) Reset()
func (*GrpcKeyBuilder) String ¶
func (x *GrpcKeyBuilder) String() string
type GrpcKeyBuilder_Name ¶
type GrpcKeyBuilder_Name struct { Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"` Method string `protobuf:"bytes,2,opt,name=method,proto3" json:"method,omitempty"` // contains filtered or unexported fields }
To match, one of the given Name fields must match; the service and method fields are specified as fixed strings. The service name is required and includes the proto package name. The method name may be omitted, in which case any method on the given service is matched.
func (*GrpcKeyBuilder_Name) Descriptor
deprecated
func (*GrpcKeyBuilder_Name) Descriptor() ([]byte, []int)
Deprecated: Use GrpcKeyBuilder_Name.ProtoReflect.Descriptor instead.
func (*GrpcKeyBuilder_Name) GetMethod ¶
func (x *GrpcKeyBuilder_Name) GetMethod() string
func (*GrpcKeyBuilder_Name) GetService ¶
func (x *GrpcKeyBuilder_Name) GetService() string
func (*GrpcKeyBuilder_Name) ProtoMessage ¶
func (*GrpcKeyBuilder_Name) ProtoMessage()
func (*GrpcKeyBuilder_Name) ProtoReflect ¶
func (x *GrpcKeyBuilder_Name) ProtoReflect() protoreflect.Message
func (*GrpcKeyBuilder_Name) Reset ¶
func (x *GrpcKeyBuilder_Name) Reset()
func (*GrpcKeyBuilder_Name) String ¶
func (x *GrpcKeyBuilder_Name) String() string
type HttpKeyBuilder ¶
type HttpKeyBuilder struct { // host_pattern is an ordered list of host template patterns for the desired // value. If any host_pattern values are specified, then at least one must // match, and the last one wins and sets any specified variables. A host // consists of labels separated by dots. Each label is matched against the // label in the pattern as follows: // - "*": Matches any single label. // - "**": Matches zero or more labels (first or last part of host only). // - "{<name>=...}": One or more label capture, where "..." can be any // template that does not include a capture. // - "{<name>}": A single label capture. Identical to {<name>=*}. // // Examples: // - "example.com": Only applies to the exact host example.com. // - "*.example.com": Matches subdomains of example.com. // - "**.example.com": matches example.com, and all levels of subdomains. // - "{project}.example.com": Extracts the third level subdomain. // - "{project=**}.example.com": Extracts the third level+ subdomains. // - "{project=**}": Extracts the entire host. HostPatterns []string `protobuf:"bytes,1,rep,name=host_patterns,json=hostPatterns,proto3" json:"host_patterns,omitempty"` // path_pattern is an ordered list of path template patterns for the desired // value. If any path_pattern values are specified, then at least one must // match, and the last one wins and sets any specified variables. A path // consists of segments separated by slashes. Each segment is matched against // the segment in the pattern as follows: // - "*": Matches any single segment. // - "**": Matches zero or more segments (first or last part of path only). // - "{<name>=...}": One or more segment capture, where "..." can be any // template that does not include a capture. // - "{<name>}": A single segment capture. Identical to {<name>=*}. // A custom method may also be specified by appending ":" and the custom // method name or "*" to indicate any custom method (including no custom // method). For example, "/*/projects/{project_id}/**:*" extracts // `{project_id}` for any version, resource and custom method that includes // it. By default, any custom method will be matched. // // Examples: // - "/v1/{name=messages/*}": extracts a name like "messages/12345". // - "/v1/messages/{message_id}": extracts a message_id like "12345". // - "/v1/users/{user_id}/messages/{message_id}": extracts two key values. PathPatterns []string `protobuf:"bytes,2,rep,name=path_patterns,json=pathPatterns,proto3" json:"path_patterns,omitempty"` // List of query parameter names to try to match. // For example: ["parent", "name", "resource.name"] // We extract all the specified query_parameters (case-sensitively). If any // are marked as "required_match" and are not present, this keybuilder fails // to match. If a given parameter appears multiple times (?foo=a&foo=b) we // will report it as a comma-separated string (foo=a,b). QueryParameters []*NameMatcher `protobuf:"bytes,3,rep,name=query_parameters,json=queryParameters,proto3" json:"query_parameters,omitempty"` // List of headers to try to match. // We extract all the specified header values (case-insensitively). If any // are marked as "required_match" and are not present, this keybuilder fails // to match. If a given header appears multiple times in the request we will // report it as a comma-separated string, in standard HTTP fashion. Headers []*NameMatcher `protobuf:"bytes,4,rep,name=headers,proto3" json:"headers,omitempty"` // contains filtered or unexported fields }
An HttpKeyBuilder applies to a given HTTP URL and headers.
Path and host patterns use the matching syntax from gRPC transcoding to extract named key/value pairs from the path and host components of the URL: https://github.com/googleapis/googleapis/blob/master/google/api/http.proto
It is invalid to specify the same key name in multiple places in a pattern.
For a service where the project id can be expressed either as a subdomain or in the path, separate HttpKeyBuilders must be used:
host_pattern: 'example.com' path_pattern: '/{id}/{object}/**' host_pattern: '{id}.example.com' path_pattern: '/{object}/**'
If the host is exactly 'example.com', the first path segment will be used as the id and the second segment as the object. If the host has a subdomain, the subdomain will be used as the id and the first segment as the object. If neither pattern matches, no keys will be extracted.
func (*HttpKeyBuilder) Descriptor
deprecated
func (*HttpKeyBuilder) Descriptor() ([]byte, []int)
Deprecated: Use HttpKeyBuilder.ProtoReflect.Descriptor instead.
func (*HttpKeyBuilder) GetHeaders ¶
func (x *HttpKeyBuilder) GetHeaders() []*NameMatcher
func (*HttpKeyBuilder) GetHostPatterns ¶
func (x *HttpKeyBuilder) GetHostPatterns() []string
func (*HttpKeyBuilder) GetPathPatterns ¶
func (x *HttpKeyBuilder) GetPathPatterns() []string
func (*HttpKeyBuilder) GetQueryParameters ¶
func (x *HttpKeyBuilder) GetQueryParameters() []*NameMatcher
func (*HttpKeyBuilder) ProtoMessage ¶
func (*HttpKeyBuilder) ProtoMessage()
func (*HttpKeyBuilder) ProtoReflect ¶
func (x *HttpKeyBuilder) ProtoReflect() protoreflect.Message
func (*HttpKeyBuilder) Reset ¶
func (x *HttpKeyBuilder) Reset()
func (*HttpKeyBuilder) String ¶
func (x *HttpKeyBuilder) String() string
type NameMatcher ¶
type NameMatcher struct { // The name that will be used in the RLS key_map to refer to this value. Key string `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"` // Ordered list of names (headers or query parameter names) that can supply // this value; the first one with a non-empty value is used. Names []string `protobuf:"bytes,2,rep,name=names,proto3" json:"names,omitempty"` // If true, make this extraction required; the key builder will not match // if no value is found. RequiredMatch bool `protobuf:"varint,3,opt,name=required_match,json=requiredMatch,proto3" json:"required_match,omitempty"` // contains filtered or unexported fields }
Extract a key based on a given name (e.g. header name or query parameter name). The name must match one of the names listed in the "name" field. If the "required_match" field is true, one of the specified names must be present for the keybuilder to match.
func (*NameMatcher) Descriptor
deprecated
func (*NameMatcher) Descriptor() ([]byte, []int)
Deprecated: Use NameMatcher.ProtoReflect.Descriptor instead.
func (*NameMatcher) GetKey ¶
func (x *NameMatcher) GetKey() string
func (*NameMatcher) GetNames ¶
func (x *NameMatcher) GetNames() []string
func (*NameMatcher) GetRequiredMatch ¶
func (x *NameMatcher) GetRequiredMatch() bool
func (*NameMatcher) ProtoMessage ¶
func (*NameMatcher) ProtoMessage()
func (*NameMatcher) ProtoReflect ¶
func (x *NameMatcher) ProtoReflect() protoreflect.Message
func (*NameMatcher) Reset ¶
func (x *NameMatcher) Reset()
func (*NameMatcher) String ¶
func (x *NameMatcher) String() string
type RouteLookupConfig ¶
type RouteLookupConfig struct { // Ordered specifications for constructing keys for HTTP requests. Last // match wins. If no HttpKeyBuilder matches, an empty key_map will be sent to // the lookup service; it should likely reply with a global default route // and raise an alert. HttpKeybuilders []*HttpKeyBuilder `protobuf:"bytes,1,rep,name=http_keybuilders,json=httpKeybuilders,proto3" json:"http_keybuilders,omitempty"` // Unordered specifications for constructing keys for gRPC requests. All // GrpcKeyBuilders on this list must have unique "name" fields so that the // client is free to prebuild a hash map keyed by name. If no GrpcKeyBuilder // matches, an empty key_map will be sent to the lookup service; it should // likely reply with a global default route and raise an alert. GrpcKeybuilders []*GrpcKeyBuilder `protobuf:"bytes,2,rep,name=grpc_keybuilders,json=grpcKeybuilders,proto3" json:"grpc_keybuilders,omitempty"` // The name of the lookup service as a gRPC URI. Typically, this will be // a subdomain of the target, such as "lookup.datastore.googleapis.com". LookupService string `protobuf:"bytes,3,opt,name=lookup_service,json=lookupService,proto3" json:"lookup_service,omitempty"` // Configure a timeout value for lookup service requests. // Defaults to 10 seconds if not specified. LookupServiceTimeout *duration.Duration `protobuf:"bytes,4,opt,name=lookup_service_timeout,json=lookupServiceTimeout,proto3" json:"lookup_service_timeout,omitempty"` // How long are responses valid for (like HTTP Cache-Control). // If omitted or zero, the longest valid cache time is used. // This value is clamped to 5 minutes to avoid unflushable bad responses. MaxAge *duration.Duration `protobuf:"bytes,5,opt,name=max_age,json=maxAge,proto3" json:"max_age,omitempty"` // After a response has been in the client cache for this amount of time // and is re-requested, start an asynchronous RPC to re-validate it. // This value should be less than max_age by at least the length of a // typical RTT to the Route Lookup Service to fully mask the RTT latency. // If omitted, keys are only re-requested after they have expired. StaleAge *duration.Duration `protobuf:"bytes,6,opt,name=stale_age,json=staleAge,proto3" json:"stale_age,omitempty"` // Rough indicator of amount of memory to use for the client cache. Some of // the data structure overhead is not accounted for, so actual memory consumed // will be somewhat greater than this value. If this field is omitted or set // to zero, a client default will be used. The value may be capped to a lower // amount based on client configuration. CacheSizeBytes int64 `protobuf:"varint,7,opt,name=cache_size_bytes,json=cacheSizeBytes,proto3" json:"cache_size_bytes,omitempty"` // This is a list of all the possible targets that can be returned by the // lookup service. If a target not on this list is returned, it will be // treated the same as an unhealthy target. ValidTargets []string `protobuf:"bytes,8,rep,name=valid_targets,json=validTargets,proto3" json:"valid_targets,omitempty"` // This value provides a default target to use if needed. If set, it will be // used if RLS returns an error, times out, or returns an invalid response. // Note that requests can be routed only to a subdomain of the original // target, e.g. "us_east_1.cloudbigtable.googleapis.com". DefaultTarget string `protobuf:"bytes,9,opt,name=default_target,json=defaultTarget,proto3" json:"default_target,omitempty"` // contains filtered or unexported fields }
func (*RouteLookupConfig) Descriptor
deprecated
func (*RouteLookupConfig) Descriptor() ([]byte, []int)
Deprecated: Use RouteLookupConfig.ProtoReflect.Descriptor instead.
func (*RouteLookupConfig) GetCacheSizeBytes ¶
func (x *RouteLookupConfig) GetCacheSizeBytes() int64
func (*RouteLookupConfig) GetDefaultTarget ¶
func (x *RouteLookupConfig) GetDefaultTarget() string
func (*RouteLookupConfig) GetGrpcKeybuilders ¶
func (x *RouteLookupConfig) GetGrpcKeybuilders() []*GrpcKeyBuilder
func (*RouteLookupConfig) GetHttpKeybuilders ¶
func (x *RouteLookupConfig) GetHttpKeybuilders() []*HttpKeyBuilder
func (*RouteLookupConfig) GetLookupService ¶
func (x *RouteLookupConfig) GetLookupService() string
func (*RouteLookupConfig) GetLookupServiceTimeout ¶
func (x *RouteLookupConfig) GetLookupServiceTimeout() *duration.Duration
func (*RouteLookupConfig) GetMaxAge ¶
func (x *RouteLookupConfig) GetMaxAge() *duration.Duration
func (*RouteLookupConfig) GetStaleAge ¶
func (x *RouteLookupConfig) GetStaleAge() *duration.Duration
func (*RouteLookupConfig) GetValidTargets ¶
func (x *RouteLookupConfig) GetValidTargets() []string
func (*RouteLookupConfig) ProtoMessage ¶
func (*RouteLookupConfig) ProtoMessage()
func (*RouteLookupConfig) ProtoReflect ¶
func (x *RouteLookupConfig) ProtoReflect() protoreflect.Message
func (*RouteLookupConfig) Reset ¶
func (x *RouteLookupConfig) Reset()
func (*RouteLookupConfig) String ¶
func (x *RouteLookupConfig) String() string
type RouteLookupRequest ¶
type RouteLookupRequest struct { // Full host name of the target server, e.g. firestore.googleapis.com. // Only set for gRPC requests; HTTP requests must use key_map explicitly. Server string `protobuf:"bytes,1,opt,name=server,proto3" json:"server,omitempty"` // Full path of the request, i.e. "/service/method". // Only set for gRPC requests; HTTP requests must use key_map explicitly. Path string `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"` // Target type allows the client to specify what kind of target format it // would like from RLS to allow it to find the regional server, e.g. "grpc". TargetType string `protobuf:"bytes,3,opt,name=target_type,json=targetType,proto3" json:"target_type,omitempty"` // Map of key values extracted via key builders for the gRPC or HTTP request. KeyMap map[string]string `` /* 167-byte string literal not displayed */ // contains filtered or unexported fields }
func (*RouteLookupRequest) Descriptor
deprecated
func (*RouteLookupRequest) Descriptor() ([]byte, []int)
Deprecated: Use RouteLookupRequest.ProtoReflect.Descriptor instead.
func (*RouteLookupRequest) GetKeyMap ¶
func (x *RouteLookupRequest) GetKeyMap() map[string]string
func (*RouteLookupRequest) GetPath ¶
func (x *RouteLookupRequest) GetPath() string
func (*RouteLookupRequest) GetServer ¶
func (x *RouteLookupRequest) GetServer() string
func (*RouteLookupRequest) GetTargetType ¶
func (x *RouteLookupRequest) GetTargetType() string
func (*RouteLookupRequest) ProtoMessage ¶
func (*RouteLookupRequest) ProtoMessage()
func (*RouteLookupRequest) ProtoReflect ¶
func (x *RouteLookupRequest) ProtoReflect() protoreflect.Message
func (*RouteLookupRequest) Reset ¶
func (x *RouteLookupRequest) Reset()
func (*RouteLookupRequest) String ¶
func (x *RouteLookupRequest) String() string
type RouteLookupResponse ¶
type RouteLookupResponse struct { // Prioritized list (best one first) of addressable entities to use // for routing, using syntax requested by the request target_type. // The targets will be tried in order until a healthy one is found. Targets []string `protobuf:"bytes,3,rep,name=targets,proto3" json:"targets,omitempty"` // Optional header value to pass along to AFE in the X-Google-RLS-Data header. // Cached with "target" and sent with all requests that match the request key. // Allows the RLS to pass its work product to the eventual target. HeaderData string `protobuf:"bytes,2,opt,name=header_data,json=headerData,proto3" json:"header_data,omitempty"` // contains filtered or unexported fields }
func (*RouteLookupResponse) Descriptor
deprecated
func (*RouteLookupResponse) Descriptor() ([]byte, []int)
Deprecated: Use RouteLookupResponse.ProtoReflect.Descriptor instead.
func (*RouteLookupResponse) GetHeaderData ¶
func (x *RouteLookupResponse) GetHeaderData() string
func (*RouteLookupResponse) GetTargets ¶
func (x *RouteLookupResponse) GetTargets() []string
func (*RouteLookupResponse) ProtoMessage ¶
func (*RouteLookupResponse) ProtoMessage()
func (*RouteLookupResponse) ProtoReflect ¶
func (x *RouteLookupResponse) ProtoReflect() protoreflect.Message
func (*RouteLookupResponse) Reset ¶
func (x *RouteLookupResponse) Reset()
func (*RouteLookupResponse) String ¶
func (x *RouteLookupResponse) String() string
type RouteLookupServiceClient ¶
type RouteLookupServiceClient interface { // Lookup returns a target for a single key. RouteLookup(ctx context.Context, in *RouteLookupRequest, opts ...grpc.CallOption) (*RouteLookupResponse, error) }
RouteLookupServiceClient is the client API for RouteLookupService service.
For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
func NewRouteLookupServiceClient ¶
func NewRouteLookupServiceClient(cc grpc.ClientConnInterface) RouteLookupServiceClient
type RouteLookupServiceServer ¶
type RouteLookupServiceServer interface { // Lookup returns a target for a single key. RouteLookup(context.Context, *RouteLookupRequest) (*RouteLookupResponse, error) // contains filtered or unexported methods }
RouteLookupServiceServer is the server API for RouteLookupService service. All implementations must embed UnimplementedRouteLookupServiceServer for forward compatibility
type UnimplementedRouteLookupServiceServer ¶
type UnimplementedRouteLookupServiceServer struct { }
UnimplementedRouteLookupServiceServer must be embedded to have forward compatible implementations.
func (UnimplementedRouteLookupServiceServer) RouteLookup ¶
func (UnimplementedRouteLookupServiceServer) RouteLookup(context.Context, *RouteLookupRequest) (*RouteLookupResponse, error)
type UnsafeRouteLookupServiceServer ¶
type UnsafeRouteLookupServiceServer interface {
// contains filtered or unexported methods
}
UnsafeRouteLookupServiceServer may be embedded to opt out of forward compatibility for this service. Use of this interface is not recommended, as added methods to RouteLookupServiceServer will result in compilation errors.