Configure RouteMatcher at the RSocketStrategies level

After a change in Spring Framework (see
spring-projects/spring-framework#23314), the `RouteMatcher` to be used
with the RSocket infrastructure is configured on the `RSocketStrategies`
directly.

This commit moves the auto-configuration of the
`PathPatternRouteMatcher` from the message handling parts to the RSocket
strategy one.

Closes gh-17571

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/rsocket/RSocketMessagingAutoConfiguration.java

@@ -28,8 +28,6 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.messaging.rsocket.RSocketRequester;
 import org.springframework.messaging.rsocket.RSocketStrategies;
 import org.springframework.messaging.rsocket.annotation.support.RSocketMessageHandler;
-import org.springframework.util.ClassUtils;
-import org.springframework.web.util.pattern.PathPatternRouteMatcher;
 
 /**
  * {@link EnableAutoConfiguration Auto-configuration} for Spring RSocket support in Spring
@@ -43,16 +41,11 @@ import org.springframework.web.util.pattern.PathPatternRouteMatcher;
 @AutoConfigureAfter(RSocketStrategiesAutoConfiguration.class)
 public class RSocketMessagingAutoConfiguration {
 
-	private static final String PATHPATTERN_ROUTEMATCHER_CLASS = "org.springframework.web.util.pattern.PathPatternRouteMatcher";
-
 	@Bean
 	@ConditionalOnMissingBean
 	public RSocketMessageHandler messageHandler(RSocketStrategies rSocketStrategies) {
 		RSocketMessageHandler messageHandler = new RSocketMessageHandler();
 		messageHandler.setRSocketStrategies(rSocketStrategies);
-		if (ClassUtils.isPresent(PATHPATTERN_ROUTEMATCHER_CLASS, null)) {
-			messageHandler.setRouteMatcher(new PathPatternRouteMatcher());
-		}
 		return messageHandler;
 	}
 

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/rsocket/RSocketStrategiesAutoConfiguration.java

@@ -39,6 +39,8 @@ import org.springframework.http.codec.json.Jackson2JsonDecoder;
 import org.springframework.http.codec.json.Jackson2JsonEncoder;
 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 import org.springframework.messaging.rsocket.RSocketStrategies;
+import org.springframework.util.ClassUtils;
+import org.springframework.web.util.pattern.PathPatternRouteMatcher;
 
 /**
  * {@link EnableAutoConfiguration Auto-configuration} for {@link RSocketStrategies}.
@@ -51,10 +53,15 @@ import org.springframework.messaging.rsocket.RSocketStrategies;
 @AutoConfigureAfter(JacksonAutoConfiguration.class)
 public class RSocketStrategiesAutoConfiguration {
 
+	private static final String PATHPATTERN_ROUTEMATCHER_CLASS = "org.springframework.web.util.pattern.PathPatternRouteMatcher";
+
 	@Bean
 	@ConditionalOnMissingBean
 	public RSocketStrategies rSocketStrategies(ObjectProvider<RSocketStrategiesCustomizer> customizers) {
 		RSocketStrategies.Builder builder = RSocketStrategies.builder();
+		if (ClassUtils.isPresent(PATHPATTERN_ROUTEMATCHER_CLASS, null)) {
+			builder.routeMatcher(new PathPatternRouteMatcher());
+		}
 		customizers.orderedStream().forEach((customizer) -> customizer.customize(builder));
 		return builder.build();
 	}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/rsocket/RSocketMessagingAutoConfigurationTests.java

@@ -26,7 +26,6 @@ import org.springframework.core.codec.CharSequenceEncoder;
 import org.springframework.core.codec.StringDecoder;
 import org.springframework.messaging.rsocket.RSocketStrategies;
 import org.springframework.messaging.rsocket.annotation.support.RSocketMessageHandler;
-import org.springframework.web.util.pattern.PathPatternRouteMatcher;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -43,11 +42,7 @@ class RSocketMessagingAutoConfigurationTests {
 
 	@Test
 	void shouldCreateDefaultBeans() {
-		this.contextRunner.run((context) -> {
-			assertThat(context).getBeans(RSocketMessageHandler.class).hasSize(1);
-			assertThat(context.getBean(RSocketMessageHandler.class).getRouteMatcher())
-					.isInstanceOf(PathPatternRouteMatcher.class);
-		});
+		this.contextRunner.run((context) -> assertThat(context).getBeans(RSocketMessageHandler.class).hasSize(1));
 	}
 
 	@Test

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/rsocket/RSocketStrategiesAutoConfigurationTests.java

@@ -33,6 +33,7 @@ import org.springframework.http.codec.cbor.Jackson2CborEncoder;
 import org.springframework.http.codec.json.Jackson2JsonDecoder;
 import org.springframework.http.codec.json.Jackson2JsonEncoder;
 import org.springframework.messaging.rsocket.RSocketStrategies;
+import org.springframework.web.util.pattern.PathPatternRouteMatcher;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.Mockito.mock;
@@ -56,6 +57,7 @@ class RSocketStrategiesAutoConfigurationTests {
 					.hasAtLeastOneElementOfType(Jackson2JsonDecoder.class);
 			assertThat(strategies.encoders()).hasAtLeastOneElementOfType(Jackson2CborEncoder.class)
 					.hasAtLeastOneElementOfType(Jackson2JsonEncoder.class);
+			assertThat(strategies.routeMatcher()).isInstanceOf(PathPatternRouteMatcher.class);
 		});
 	}