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RSocket: Add support for RoutingMetadata

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Related to https://github.com/spring-projects/spring-framework/issues/23137

The metadata in Spring Messaging for RSockets now supports any
arbitrary objects for setup payload, including composition.

* Switch the `ClientRSocketConnector` to fully delegate to the
`RSocketRequester.Builder` inheriting possible metadata encoding/decoding
in the target `RSocketRequester` implementation
* Turn off a default `dataMimeType` from the `MimeTypeUtils.TEXT_PLAIN`
to the `null` by default relying on the encoder/decoder logic in the
target RSocket wrappers
* Expose more delegating options in the `ClientRSocketConnector`, like
`setupRouteVars`,  `setupMetadata`
This commit is contained in:
Artem Bilan
2019-09-03 14:22:36 -04:00
parent fd7e7dbaf3
commit 444c1f9913
5 changed files with 92 additions and 69 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
spring-integration-rsocket/src/main/java/org/springframework/integration/rsocket/AbstractRSocketConnector.java
View File

@@ -53,7 +53,7 @@ public abstract class AbstractRSocketConnector
protected final IntegrationRSocketMessageHandler rSocketMessageHandler; // NOSONAR - final
private MimeType dataMimeType = MimeTypeUtils.TEXT_PLAIN;
private MimeType dataMimeType;
private MimeType metadataMimeType =
MimeTypeUtils.parseMimeType(WellKnownMimeType.MESSAGE_RSOCKET_COMPOSITE_METADATA.toString());

123
spring-integration-rsocket/src/main/java/org/springframework/integration/rsocket/ClientRSocketConnector.java
View File

@@ -17,19 +17,18 @@
package org.springframework.integration.rsocket;
import java.net.URI;
import java.util.function.Consumer;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.Map;
import org.springframework.messaging.rsocket.ClientRSocketFactoryConfigurer;
import org.springframework.messaging.rsocket.RSocketRequester;
import org.springframework.util.Assert;
import org.springframework.util.MimeType;
import io.rsocket.Payload;
import io.rsocket.RSocket;
import io.rsocket.RSocketFactory;
import io.rsocket.transport.ClientTransport;
import io.rsocket.transport.netty.client.TcpClientTransport;
import io.rsocket.transport.netty.client.WebsocketClientTransport;
import io.rsocket.util.DefaultPayload;
import io.rsocket.util.EmptyPayload;
import reactor.core.Disposable;
import reactor.core.publisher.Mono;
@@ -40,22 +39,26 @@ import reactor.core.publisher.Mono;
*
* @since 5.2
*
* @see RSocketFactory.ClientRSocketFactory
* @see io.rsocket.RSocketFactory.ClientRSocketFactory
* @see RSocketRequester
*/
public class ClientRSocketConnector extends AbstractRSocketConnector {
private final ClientTransport clientTransport;
private Consumer<RSocketFactory.ClientRSocketFactory> factoryConfigurer = (clientRSocketFactory) -> { };
private final Map<Object, MimeType> setupMetadata = new LinkedHashMap<>(4);
private String connectRoute;
private ClientRSocketFactoryConfigurer factoryConfigurer = (clientRSocketFactory) -> { };
private String connectData = "";
private Object setupData;
private String setupRoute;
private Object[] setupRouteVars = new Object[0];
private boolean autoConnect;
private Mono<RSocket> rsocketMono;
private Mono<RSocketRequester> rsocketRequesterMono;
/**
* Instantiate a connector based on the {@link TcpClientTransport}.
@@ -79,6 +82,7 @@ public class ClientRSocketConnector extends AbstractRSocketConnector {
/**
* Instantiate a connector based on the provided {@link ClientTransport}.
* @param clientTransport the {@link ClientTransport} to use.
* @see RSocketRequester.Builder#connect(ClientTransport)
*/
public ClientRSocketConnector(ClientTransport clientTransport) {
super(new IntegrationRSocketMessageHandler());
@@ -87,47 +91,83 @@ public class ClientRSocketConnector extends AbstractRSocketConnector {
}
/**
* Specify a {@link Consumer} for configuring a {@link RSocketFactory.ClientRSocketFactory}.
* @param factoryConfigurer the {@link Consumer} to configure the {@link RSocketFactory.ClientRSocketFactory}.
* Callback to configure the {@code ClientRSocketFactory} directly.
* Note: this class adds extra {@link ClientRSocketFactoryConfigurer} to the
* target {@link RSocketRequester} to populate a reference to an internal
* {@link IntegrationRSocketMessageHandler#responder()}.
* This overrides possible external
* {@link io.rsocket.RSocketFactory.ClientRSocketFactory#acceptor(io.rsocket.SocketAcceptor)}
* @param factoryConfigurer the {@link ClientRSocketFactoryConfigurer} to
* configure the {@link io.rsocket.RSocketFactory.ClientRSocketFactory}.
* @see RSocketRequester.Builder#rsocketFactory(ClientRSocketFactoryConfigurer)
*/
public void setFactoryConfigurer(Consumer<RSocketFactory.ClientRSocketFactory> factoryConfigurer) {
public void setFactoryConfigurer(ClientRSocketFactoryConfigurer factoryConfigurer) {
Assert.notNull(factoryConfigurer, "'factoryConfigurer' must not be null");
this.factoryConfigurer = factoryConfigurer;
}
/**
* Configure a route for server RSocket endpoint.
* @param connectRoute the route to connect to.
* Set the route for the setup payload.
* @param setupRoute the route to connect to.
* @see RSocketRequester.Builder#setupRoute(String, Object...)
*/
public void setConnectRoute(String connectRoute) {
this.connectRoute = connectRoute;
public void setSetupRoute(String setupRoute) {
Assert.notNull(setupRoute, "'setupRoute' must not be null");
this.setupRoute = setupRoute;
}
/**
* Configure a data for connect.
* Defaults to empty string.
* @param connectData the data for connect frame.
* Set the variables for route template to expand with.
* @param setupRouteVars the route to connect to.
* @see RSocketRequester.Builder#setupRoute(String, Object...)
*/
public void setConnectData(String connectData) {
Assert.notNull(connectData, "'connectData' must not be null");
this.connectData = connectData;
public void setSetupRouteVariables(Object... setupRouteVars) {
Assert.notNull(setupRouteVars, "'setupRouteVars' must not be null");
this.setupRouteVars = Arrays.copyOf(setupRouteVars, setupRouteVars.length);
}
/**
* Add metadata to the setup payload. Composite metadata must be
* in use if this is called more than once or in addition to
* {@link #setSetupRoute(String)}.
* @param setupMetadata the map of metadata to use.
* @see RSocketRequester.Builder#setupMetadata(Object, MimeType)
*/
public void setSetupMetadata(Map<Object, MimeType> setupMetadata) {
Assert.notNull(setupMetadata, "'setupMetadata' must not be null");
this.setupMetadata.clear();
this.setupMetadata.putAll(setupMetadata);
}
/**
* Set the data for the setup payload.
* @param setupData the data for connect frame.
* @see RSocketRequester.Builder#setupData(Object)
*/
public void setSetupData(Object setupData) {
Assert.notNull(setupData, "'setupData' must not be null");
this.setupData = setupData;
}
@Override
public void afterPropertiesSet() {
super.afterPropertiesSet();
RSocketFactory.ClientRSocketFactory clientFactory =
RSocketFactory.connect()
.dataMimeType(getDataMimeType().toString())
.metadataMimeType(getMetadataMimeType().toString());
this.factoryConfigurer.accept(clientFactory);
clientFactory.acceptor(this.rSocketMessageHandler.responder());
Payload connectPayload = EmptyPayload.INSTANCE;
if (this.connectRoute != null) {
connectPayload = DefaultPayload.create(this.connectData, this.connectRoute);
}
clientFactory.setupPayload(connectPayload);
this.rsocketMono = clientFactory.transport(this.clientTransport).start().cache();
RSocketRequester.Builder rsocketRequesterBuilder =
RSocketRequester.builder()
.dataMimeType(getDataMimeType())
.metadataMimeType(getMetadataMimeType())
.rsocketStrategies(getRSocketStrategies())
.setupData(this.setupData)
.setupRoute(this.setupRoute, this.setupRouteVars)
.rsocketFactory(this.factoryConfigurer)
.rsocketFactory((rsocketFactory) ->
rsocketFactory.acceptor(this.rSocketMessageHandler.responder()));
this.setupMetadata.forEach(rsocketRequesterBuilder::setupMetadata);
this.rsocketRequesterMono =
rsocketRequesterBuilder
.connect(this.clientTransport)
.cache();
}
@Override
@@ -144,7 +184,8 @@ public class ClientRSocketConnector extends AbstractRSocketConnector {
@Override
public void destroy() {
this.rsocketMono
this.rsocketRequesterMono
.map(RSocketRequester::rsocket)
.doOnNext(Disposable::dispose)
.subscribe();
}
@@ -153,15 +194,11 @@ public class ClientRSocketConnector extends AbstractRSocketConnector {
* Perform subscription into the RSocket server for incoming requests.
*/
public void connect() {
this.rsocketMono.subscribe();
this.rsocketRequesterMono.subscribe();
}
public Mono<RSocketRequester> getRSocketRequester() {
return this.rsocketMono
.map((rsocket) ->
RSocketRequester
.wrap(rsocket, getDataMimeType(), getMetadataMimeType(), getRSocketStrategies()))
.cache();
return this.rsocketRequesterMono;
}
}