Upgrade to Rsocket 1.0-RC7; fix deprecations

* Fix RSocket docs according new functionality

**Cherry-pick to 5.2.x**

build.gradle

@@ -89,14 +89,14 @@ ext {
 	reactorVersion = 'Dysprosium-SR6'
 	resilience4jVersion = '1.3.1'
 	romeToolsVersion = '1.12.2'
-	rsocketVersion = '1.0.0-RC6'
+	rsocketVersion = '1.0.0-RC7'
 	servletApiVersion = '4.0.1'
 	smackVersion = '4.3.4'
 	springAmqpVersion = project.hasProperty('springAmqpVersion') ? project.springAmqpVersion : '2.2.5.RELEASE'
 	springDataVersion = project.hasProperty('springDataVersion') ? project.springDataVersion : 'Neumann-RC1'
 	springSecurityVersion = project.hasProperty('springSecurityVersion') ? project.springSecurityVersion : '5.3.1.RELEASE'
 	springRetryVersion = '1.2.5.RELEASE'
-	springVersion = project.hasProperty('springVersion') ? project.springVersion : '5.2.5.RELEASE'
+	springVersion = project.hasProperty('springVersion') ? project.springVersion : '5.2.6.RELEASE'
 	springWsVersion = '3.0.8.RELEASE'
 	tomcatVersion = "9.0.33"
 	xstreamVersion = '1.4.11.1'

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 the original author or authors.
+ * Copyright 2019-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,11 +21,12 @@ import java.util.Arrays;
 import java.util.LinkedHashMap;
 import java.util.Map;
 
-import org.springframework.messaging.rsocket.ClientRSocketFactoryConfigurer;
+import org.springframework.messaging.rsocket.RSocketConnectorConfigurer;
 import org.springframework.messaging.rsocket.RSocketRequester;
 import org.springframework.util.Assert;
 import org.springframework.util.MimeType;
 
+import io.rsocket.core.RSocketConnector;
 import io.rsocket.transport.ClientTransport;
 import io.rsocket.transport.netty.client.TcpClientTransport;
 import io.rsocket.transport.netty.client.WebsocketClientTransport;
@@ -48,7 +49,7 @@ public class ClientRSocketConnector extends AbstractRSocketConnector {
 
 	private final Map<Object, MimeType> setupMetadata = new LinkedHashMap<>(4);
 
-	private ClientRSocketFactoryConfigurer factoryConfigurer = (clientRSocketFactory) -> { };
+	private RSocketConnectorConfigurer connectorConfigurer = (connector) -> { };
 
 	private Object setupData;
 
@@ -92,18 +93,40 @@ public class ClientRSocketConnector extends AbstractRSocketConnector {
 
 	/**
 	 * Callback to configure the {@code ClientRSocketFactory} directly.
-	 * Note: this class adds extra {@link ClientRSocketFactoryConfigurer} to the
+	 * Note: this class adds extra {@link org.springframework.messaging.rsocket.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
+	 * @param factoryConfigurer the {@link org.springframework.messaging.rsocket.ClientRSocketFactoryConfigurer} to
 	 *  configure the {@link io.rsocket.RSocketFactory.ClientRSocketFactory}.
-	 * @see RSocketRequester.Builder#rsocketFactory(ClientRSocketFactoryConfigurer)
+	 * @see RSocketRequester.Builder#rsocketFactory(org.springframework.messaging.rsocket.ClientRSocketFactoryConfigurer)
+	 * @deprecated since 5.2.6 in favor of {@link #setConnectorConfigurer(RSocketConnectorConfigurer)}
 	 */
-	public void setFactoryConfigurer(ClientRSocketFactoryConfigurer factoryConfigurer) {
+	@Deprecated
+	public void setFactoryConfigurer(
+			org.springframework.messaging.rsocket.ClientRSocketFactoryConfigurer factoryConfigurer) {
+
 		Assert.notNull(factoryConfigurer, "'factoryConfigurer' must not be null");
-		this.factoryConfigurer = factoryConfigurer;
+		setConnectorConfigurer((connector) ->
+				factoryConfigurer.configure(new io.rsocket.RSocketFactory.ClientRSocketFactory(connector)));
+	}
+
+	/**
+	 * Callback to configure the {@code ClientRSocketFactory} directly.
+	 * Note: this class adds extra {@link RSocketConnectorConfigurer} to the
+	 * target {@link RSocketRequester} to populate a reference to an internal
+	 * {@link IntegrationRSocketMessageHandler#responder()}.
+	 * This overrides possible external
+	 * {@link RSocketConnector#acceptor(io.rsocket.SocketAcceptor)}
+	 * @param connectorConfigurer the {@link RSocketConnectorConfigurer} to
+	 *  configure the {@link RSocketConnector}.
+	 * @since 5.2.6
+	 * @see RSocketRequester.Builder#rsocketConnector(RSocketConnectorConfigurer)
+	 */
+	public void setConnectorConfigurer(RSocketConnectorConfigurer connectorConfigurer) {
+		Assert.notNull(connectorConfigurer, "'connectorConfigurer' must not be null");
+		this.connectorConfigurer = connectorConfigurer;
 	}
 
 	/**
@@ -160,9 +183,9 @@ public class ClientRSocketConnector extends AbstractRSocketConnector {
 						.rsocketStrategies(getRSocketStrategies())
 						.setupData(this.setupData)
 						.setupRoute(this.setupRoute, this.setupRouteVars)
-						.rsocketFactory(this.factoryConfigurer)
-						.rsocketFactory((rsocketFactory) ->
-								rsocketFactory.acceptor(this.rSocketMessageHandler.responder()))
+						.rsocketConnector(this.connectorConfigurer)
+						.rsocketConnector((connector) ->
+								connector.acceptor(this.rSocketMessageHandler.responder()))
 						.apply((builder) -> this.setupMetadata.forEach(builder::setupMetadata))
 						.connect(this.clientTransport)
 						.cache();

spring-integration-rsocket/src/main/java/org/springframework/integration/rsocket/ServerRSocketConnector.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 the original author or authors.
+ * Copyright 2019-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,7 +31,8 @@ import org.springframework.messaging.rsocket.RSocketStrategies;
 import org.springframework.util.Assert;
 import org.springframework.util.MimeType;
 
-import io.rsocket.RSocketFactory;
+import io.rsocket.core.RSocketConnector;
+import io.rsocket.core.RSocketServer;
 import io.rsocket.transport.ServerTransport;
 import io.rsocket.transport.netty.server.CloseableChannel;
 import io.rsocket.transport.netty.server.TcpServerTransport;
@@ -47,13 +48,13 @@ import reactor.netty.http.server.HttpServer;
  *
  * @since 5.2
  *
- * @see RSocketFactory.ServerRSocketFactory
+ * @see RSocketConnector
  */
 public class ServerRSocketConnector extends AbstractRSocketConnector implements ApplicationEventPublisherAware {
 
 	private final ServerTransport<CloseableChannel> serverTransport;
 
-	private Consumer<RSocketFactory.ServerRSocketFactory> factoryConfigurer = (serverRSocketFactory) -> { };
+	private Consumer<RSocketServer> serverConfigurer = (rsocketServer) -> { };
 
 	private Mono<CloseableChannel> serverMono;
 
@@ -104,12 +105,24 @@ public class ServerRSocketConnector extends AbstractRSocketConnector implements
 	}
 
 	/**
-	 * Provide a {@link Consumer} to configure the {@link RSocketFactory.ServerRSocketFactory}.
-	 * @param factoryConfigurer the {@link Consumer} to configure the {@link RSocketFactory.ServerRSocketFactory}.
+	 * Provide a {@link Consumer} to configure the {@link io.rsocket.RSocketFactory.ServerRSocketFactory}.
+	 * @param factoryConfigurer the {@link Consumer} to configure the {@link io.rsocket.RSocketFactory.ServerRSocketFactory}.
+	 * @deprecated since 5.2.6 in favor of {@link #setServerConfigurer(Consumer)}
 	 */
-	public void setFactoryConfigurer(Consumer<RSocketFactory.ServerRSocketFactory> factoryConfigurer) {
+	@Deprecated
+	public void setFactoryConfigurer(Consumer<io.rsocket.RSocketFactory.ServerRSocketFactory> factoryConfigurer) {
 		Assert.notNull(factoryConfigurer, "'factoryConfigurer' must not be null");
-		this.factoryConfigurer = factoryConfigurer;
+		setServerConfigurer((server) ->
+				factoryConfigurer.accept(new io.rsocket.RSocketFactory.ServerRSocketFactory(server)));
+	}
+
+	/**
+	 * Provide a {@link Consumer} to configure the {@link RSocketServer}.
+	 * @param serverConfigurer the {@link Consumer} to configure the {@link RSocketServer}.
+	 * @since 5.2.6
+	 */
+	public void setServerConfigurer(Consumer<RSocketServer> serverConfigurer) {
+		this.serverConfigurer = serverConfigurer;
 	}
 
 	/**
@@ -164,14 +177,13 @@ public class ServerRSocketConnector extends AbstractRSocketConnector implements
 	public void afterPropertiesSet() {
 		if (this.serverTransport != null) {
 			super.afterPropertiesSet();
-			RSocketFactory.ServerRSocketFactory serverFactory = RSocketFactory.receive();
-			this.factoryConfigurer.accept(serverFactory);
+			RSocketServer rsocketServer = RSocketServer.create();
+			this.serverConfigurer.accept(rsocketServer);
 
 			this.serverMono =
-					serverFactory
+					rsocketServer
 							.acceptor(serverRSocketMessageHandler().responder())
-							.transport(this.serverTransport)
-							.start()
+							.bind(this.serverTransport)
 							.cache();
 		}
 	}

spring-integration-rsocket/src/test/java/org/springframework/integration/rsocket/inbound/RSocketInboundGatewayIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 the original author or authors.
+ * Copyright 2019-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -44,7 +44,7 @@ import org.springframework.messaging.rsocket.RSocketRequester;
 import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 
-import io.rsocket.RSocketFactory;
+import io.rsocket.core.RSocketServer;
 import io.rsocket.frame.decoder.PayloadDecoder;
 import io.rsocket.transport.netty.server.CloseableChannel;
 import io.rsocket.transport.netty.server.TcpServerTransport;
@@ -185,11 +185,10 @@ public class RSocketInboundGatewayIntegrationTests {
 
 		@Bean
 		public CloseableChannel rsocketServer() {
-			return RSocketFactory.receive()
-					.frameDecoder(PayloadDecoder.ZERO_COPY)
+			return RSocketServer.create()
+					.payloadDecoder(PayloadDecoder.ZERO_COPY)
 					.acceptor(serverRSocketMessageHandler().responder())
-					.transport(TcpServerTransport.create("localhost", 0))
-					.start()
+					.bind(TcpServerTransport.create("localhost", 0))
 					.block();
 		}
 

spring-integration-rsocket/src/test/java/org/springframework/integration/rsocket/outbound/RSocketOutboundGatewayIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 the original author or authors.
+ * Copyright 2019-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -59,7 +59,7 @@ import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 
 import io.rsocket.RSocket;
-import io.rsocket.RSocketFactory;
+import io.rsocket.core.RSocketServer;
 import io.rsocket.frame.decoder.PayloadDecoder;
 import io.rsocket.transport.netty.server.CloseableChannel;
 import io.rsocket.transport.netty.server.TcpServerTransport;
@@ -112,11 +112,10 @@ public class RSocketOutboundGatewayIntegrationTests {
 	@BeforeAll
 	static void setup() {
 		serverContext = new AnnotationConfigApplicationContext(ServerConfig.class);
-		server = RSocketFactory.receive()
-				.frameDecoder(PayloadDecoder.ZERO_COPY)
+		server = RSocketServer.create()
+				.payloadDecoder(PayloadDecoder.ZERO_COPY)
 				.acceptor(serverContext.getBean(RSocketMessageHandler.class).responder())
-				.transport(TcpServerTransport.create("localhost", 0))
-				.start()
+				.bind(TcpServerTransport.create("localhost", 0))
 				.block();
 
 		serverController = serverContext.getBean(TestController.class);
@@ -453,8 +452,8 @@ public class RSocketOutboundGatewayIntegrationTests {
 				.extracting(Message::getPayload)
 				.isInstanceOf(MessageHandlingException.class)
 				.satisfies((ex) -> assertThat((Exception) ex)
-						.hasMessageContaining("io.rsocket.exceptions.ApplicationErrorException: " +
-								"No handler for destination 'invalid'"));
+						.hasMessageContaining(
+								"ApplicationErrorException (0x201): No handler for destination 'invalid'"));
 
 		disposable.dispose();
 	}
@@ -501,7 +500,9 @@ public class RSocketOutboundGatewayIntegrationTests {
 		public RSocket rsocketForServerRequests() {
 			return RSocketRequester.builder()
 					.setupRoute("clientConnect")
-					.rsocketFactory(RSocketMessageHandler.clientResponder(RSocketStrategies.create(), controller()))
+					.rsocketConnector(connector ->
+							connector.acceptor(
+									RSocketMessageHandler.responder(RSocketStrategies.create(), controller())))
 					.connectTcp("localhost", server.address().getPort())
 					.block()
 					.rsocket();

src/reference/asciidoc/rsocket.adoc

@@ -30,7 +30,7 @@ Before starting an integration flow processing via channel adapters, we need to
 For this purpose, Spring Integration RSocket support provides the `ServerRSocketConnector` and `ClientRSocketConnector` implementations of the `AbstractRSocketConnector`.
 
 The `ServerRSocketConnector` exposes a listener on the host and port according to provided `io.rsocket.transport.ServerTransport` for accepting connections from clients.
-An internal `RSocketFactory.ServerRSocketFactory` instance can be customized with the `setFactoryConfigurer()`, as well as other options that can be configured, e.g. `RSocketStrategies` and `MimeType` for payload data and headers metadata.
+An internal `RSocketServer` instance can be customized with the `setServerConfigurer()`, as well as other options that can be configured, e.g. `RSocketStrategies` and `MimeType` for payload data and headers metadata.
 When a `setupRoute` is provided from the client requester (see `ClientRSocketConnector` below), a connected client is stored as a `RSocketRequester` under the key determined by the `clientRSocketKeyStrategy` `BiFunction<Map<String, Object>, DataBuffer, Object>`.
 By default a connect data is used for the key as a converted value to string with UTF-8 charset.
 Such an `RSocketRequester` registry can be used in the application logic to determine a particular client connection for interaction with it, or for publishing the same message to all connected clients.
@@ -58,7 +58,7 @@ public ServerRSocketConnector serverRSocketConnector() {
     ServerRSocketConnector serverRSocketConnector = new ServerRSocketConnector("localhost", 0);
     serverRSocketConnector.setRSocketStrategies(rsocketStrategies());
     serverRSocketConnector.setMetadataMimeType(new MimeType("message", "x.rsocket.routing.v0"));
-    serverRSocketConnector.setFactoryConfigurer((factory) -> factory.frameDecoder(PayloadDecoder.ZERO_COPY));
+    serverRSocketConnector.setServerConfigurer((server) -> server.payloadDecoder(PayloadDecoder.ZERO_COPY));
     serverRSocketConnector.setClientRSocketKeyStrategy((headers, data) -> ""
                                     + headers.get(DestinationPatternsMessageCondition.LOOKUP_DESTINATION_HEADER));
     return serverRSocketConnector;
@@ -80,7 +80,7 @@ In addition the `ServerRSocketMessageHandler` can be configured with a `messageM
 This can be useful in mixed configurations, when classic `@MessageMapping` methods are present in the same application along with RSocket channel adapters and an externally configured RSocket server is present in the application.
 
 The `ClientRSocketConnector` serves as a holder for `RSocketRequester` based on the `RSocket` connected via the provided `ClientTransport`.
-The `RSocketFactory.ClientRSocketFactory` can be customized with the provided `ClientRSocketFactoryConfigurer`.
+The `RSocketConnector` can be customized with the provided `RSocketConnectorConfigurer`.
 The `setupRoute` (with optional templates variables) and `setupData` with metadata can be also configured on this component.
 
 A typical client configuration might look like this: