org.springframework.messaging.rsocket

Interface RSocketRequester

public interface RSocketRequester

A thin wrapper around a sending RSocket with a fluent API accepting and returning higher level Objects for input and for output, along with methods to prepare routing and other metadata.

Since:

5.2

Author:

Rossen Stoyanchev, Brian Clozel

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	RSocketRequester.Builder Builder to create a requester by connecting to a server.
static interface	RSocketRequester.MetadataSpec<S extends RSocketRequester.MetadataSpec<S>> Spec for providing additional composite metadata entries.
static interface	RSocketRequester.RequestSpec Spec to declare the input for an RSocket request.
static interface	RSocketRequester.RetrieveSpec Spec to declare the expected output for an RSocket request.

Method Summary

Modifier and Type	Method and Description
static RSocketRequester.Builder	builder() Obtain a builder to create a client RSocketRequester by connecting to an RSocket server.
org.springframework.util.MimeType	dataMimeType() Return the data MimeType selected for the underlying RSocket at connection time.
RSocketRequester.RequestSpec	metadata(Object metadata, org.springframework.util.MimeType mimeType) Begin to specify a new request with the given metadata value, which can be a concrete value or any producer of a single value that can be adapted to a Publisher via ReactiveAdapterRegistry.
org.springframework.util.MimeType	metadataMimeType() Return the metadata MimeType selected for the underlying RSocket at connection time.
RSocketRequester.RequestSpec	route(String route, Object... routeVars) Begin to specify a new request with the given route to a remote handler.
io.rsocket.RSocket	rsocket() Return the underlying RSocket if the requester was created with a "live" RSocket via wrap(RSocket, MimeType, MimeType, RSocketStrategies) or via one of the (deprecated) connect methods on the RSocketRequester builder, or otherwise return null.
io.rsocket.core.RSocketClient	rsocketClient() Return the underlying RSocketClient used to make requests with.
static RSocketRequester	wrap(io.rsocket.RSocket rsocket, org.springframework.util.MimeType dataMimeType, org.springframework.util.MimeType metadataMimeType, RSocketStrategies strategies) Wrap an existing RSocket.

Method Detail

rsocketClient

io.rsocket.core.RSocketClient rsocketClient()

Return the underlying RSocketClient used to make requests with.

Since:

5.3

rsocket

@Nullable
io.rsocket.RSocket rsocket()

Return the underlying RSocket if the requester was created with a "live" RSocket via wrap(RSocket, MimeType, MimeType, RSocketStrategies) or via one of the (deprecated) connect methods on the RSocketRequester builder, or otherwise return null.

dataMimeType

org.springframework.util.MimeType dataMimeType()

Return the data MimeType selected for the underlying RSocket at connection time. On the client side this is configured via RSocketRequester.Builder.dataMimeType(MimeType) while on the server side it's obtained from the ConnectionSetupPayload.

metadataMimeType

org.springframework.util.MimeType metadataMimeType()

Return the metadata MimeType selected for the underlying RSocket at connection time. On the client side this is configured via RSocketRequester.Builder.metadataMimeType(MimeType) while on the server side it's obtained from the ConnectionSetupPayload.

route

RSocketRequester.RequestSpec route(String route,
                                   Object... routeVars)

Begin to specify a new request with the given route to a remote handler.

The route can be a template with placeholders, e.g. "flight.{code}" in which case the supplied route variables are formatted via toString() and expanded into the template. If a formatted variable contains a "." it is replaced with the escape sequence "%2E" to avoid treating it as separator by the responder .

If the connection is set to use composite metadata, the route is encoded as "message/x.rsocket.routing.v0". Otherwise the route is encoded according to the mime type for the connection.

Parameters:

route - the route expressing a remote handler mapping

routeVars - variables to be expanded into the route template

Returns:

a spec for further defining and executing the request

metadata

RSocketRequester.RequestSpec metadata(Object metadata,
                                      @Nullable
                                      org.springframework.util.MimeType mimeType)

Begin to specify a new request with the given metadata value, which can be a concrete value or any producer of a single value that can be adapted to a Publisher via ReactiveAdapterRegistry.

Parameters:

metadata - the metadata value to encode

mimeType - the mime type that describes the metadata; This is required for connection using composite metadata. Otherwise the value is encoded according to the mime type for the connection and this argument may be left as null.

builder

static RSocketRequester.Builder builder()

Obtain a builder to create a client RSocketRequester by connecting to an RSocket server.

wrap

static RSocketRequester wrap(io.rsocket.RSocket rsocket,
                             org.springframework.util.MimeType dataMimeType,
                             org.springframework.util.MimeType metadataMimeType,
                             RSocketStrategies strategies)

Wrap an existing RSocket. Typically for internal framework use, to wrap the remote RSocket in a client or server responder, but it can also be used to wrap any RSocket.