Polish "Add actuator endpoint for exposing the Spring Integration graph"

Closes gh-12331

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/asciidoc/endpoints/integrationgraph.adoc

@@ -1,7 +1,8 @@
 [[integrationgraph]]
 = Spring Integration graph (`integrationgraph`)
 
-The `integrationgraph` endpoint exposes a graph containing all Spring Integration components.
+The `integrationgraph` endpoint exposes a graph containing all Spring Integration
+components.
 
 
 
@@ -22,16 +23,18 @@ include::{snippets}integrationgraph/graph/http-response.adoc[]
 [[integrationgraph-retrieving-response-structure]]
 === Response Structure
 
-The response contains all Spring Integration components used within the application, as well as the links between them.
-More information about the structure can be found in the https://docs.spring.io/spring-integration/reference/html/system-management-chapter.html#integration-graph[subchapter] for the integration graph in the reference documentation of Spring Integration.
+The response contains all Spring Integration components used within the application, as
+well as the links between them. More information about the structure can be found in the
+https://docs.spring.io/spring-integration/reference/html/system-management-chapter.html#integration-graph[reference
+documentation].
 
 
 
 [[integrationgraph-rebuilding]]
 == Rebuilding the Spring Integration graph
 
-To rebuild the exposed graph, make a `POST` request to
-`/actuator/integrationgraph`, as shown in the following curl-based example:
+To rebuild the exposed graph, make a `POST` request to `/actuator/integrationgraph`, as
+shown in the following curl-based example:
 
 include::{snippets}integrationgraph/rebuild/curl-request.adoc[]
 

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/integration/IntegrationGraphEndpointAutoConfiguration.java

@@ -18,26 +18,31 @@ package org.springframework.boot.actuate.autoconfigure.integration;
 
 import org.springframework.boot.actuate.autoconfigure.endpoint.condition.ConditionalOnEnabledEndpoint;
 import org.springframework.boot.actuate.integration.IntegrationGraphEndpoint;
+import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.integration.support.channel.HeaderChannelRegistry;
 import org.springframework.integration.support.management.graph.IntegrationGraphServer;
 
 /**
  * {@link EnableAutoConfiguration Auto-configuration} for the {@link IntegrationGraphEndpoint}.
  *
  * @author Tim Ysewyn
+ * @author Stephane Nicoll
  * @since 2.1.0
  */
 @Configuration
 @ConditionalOnClass(IntegrationGraphServer.class)
+@ConditionalOnBean(HeaderChannelRegistry.class)
+@AutoConfigureAfter(IntegrationAutoConfiguration.class)
 public class IntegrationGraphEndpointAutoConfiguration {
 
 	@Bean
-	@ConditionalOnBean(IntegrationGraphServer.class)
 	@ConditionalOnMissingBean
 	@ConditionalOnEnabledEndpoint
 	public IntegrationGraphEndpoint integrationGraphEndpoint(
@@ -45,5 +50,12 @@ public class IntegrationGraphEndpointAutoConfiguration {
 		return new IntegrationGraphEndpoint(integrationGraphServer);
 	}
 
+	@Bean
+	@ConditionalOnMissingBean
+	@ConditionalOnEnabledEndpoint(endpoint = IntegrationGraphEndpoint.class)
+	public IntegrationGraphServer integrationGraphServer() {
+		return new IntegrationGraphServer();
+	}
+
 }
 

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/endpoint/web/documentation/IntegrationGraphEndpointDocumentationTests.java

@@ -45,7 +45,8 @@ public class IntegrationGraphEndpointDocumentationTests extends MockMvcEndpointD
 
 	@Test
 	public void rebuild() throws Exception {
-		this.mockMvc.perform(post("/actuator/integrationgraph")).andExpect(status().isNoContent())
+		this.mockMvc.perform(post("/actuator/integrationgraph")).andExpect(status()
+				.isNoContent())
 				.andDo(MockMvcRestDocumentation.document("integrationgraph/rebuild"));
 	}
 

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/integration/IntegrationGraphEndpointAutoConfigurationTests.java

@@ -20,9 +20,9 @@ import org.junit.Test;
 
 import org.springframework.boot.actuate.integration.IntegrationGraphEndpoint;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration;
+import org.springframework.boot.autoconfigure.jmx.JmxAutoConfiguration;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
 import org.springframework.integration.support.management.graph.IntegrationGraphServer;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -31,38 +31,40 @@ import static org.assertj.core.api.Assertions.assertThat;
  * Tests for {@link IntegrationGraphEndpointAutoConfiguration}.
  *
  * @author Tim Ysewyn
+ * @author Stephane Nicoll
  */
 public class IntegrationGraphEndpointAutoConfigurationTests {
 
-	private final ApplicationContextRunner contextRunnerWithoutIntegrationGraph = new ApplicationContextRunner()
-			.withConfiguration(AutoConfigurations.of(IntegrationGraphEndpointAutoConfiguration.class));
-
-	private final ApplicationContextRunner contextRunnerWithIntegrationGraph = new ApplicationContextRunner()
-			.withConfiguration(AutoConfigurations.of(IntegrationGraphEndpointAutoConfiguration.class))
-			.withUserConfiguration(TestConfiguration.class);
+	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
+			.withConfiguration(AutoConfigurations.of(JmxAutoConfiguration.class,
+					IntegrationAutoConfiguration.class,
+					IntegrationGraphEndpointAutoConfiguration.class));
 
 	@Test
-	public void runShouldNotHaveEndpointBean() {
-		this.contextRunnerWithoutIntegrationGraph.run((context) -> assertThat(context).doesNotHaveBean(IntegrationGraphEndpoint.class));
-		this.contextRunnerWithoutIntegrationGraph.withPropertyValues("management.endpoint.integrationgraph.enabled:true")
-				.run((context) -> assertThat(context).doesNotHaveBean(IntegrationGraphEndpoint.class));
-		this.contextRunnerWithIntegrationGraph.run((context) -> assertThat(context).doesNotHaveBean(IntegrationGraphEndpoint.class));
+	public void runShouldHaveEndpointBean() {
+		this.contextRunner.run((context) -> assertThat(context)
+				.hasSingleBean(IntegrationGraphEndpoint.class));
 	}
 
 	@Test
-	public void runWhenEnabledPropertyIsTrueShouldHaveEndpointBean() {
-		this.contextRunnerWithIntegrationGraph.withPropertyValues("management.endpoint.integrationgraph.enabled:true")
-				.run((context) -> assertThat(context).hasSingleBean(IntegrationGraphEndpoint.class));
+	public void runWhenEnabledPropertyIsFalseShouldNotHaveEndpointBean() {
+		this.contextRunner
+				.withPropertyValues("management.endpoint.integrationgraph.enabled:false")
+				.run((context) -> {
+					assertThat(context).doesNotHaveBean(IntegrationGraphEndpoint.class);
+					assertThat(context).doesNotHaveBean(IntegrationGraphServer.class);
+				});
 	}
 
-	@Configuration
-	public static class TestConfiguration {
-
-		@Bean
-		public IntegrationGraphServer integrationGraphServer() {
-			return new IntegrationGraphServer();
-		}
-
+	@Test
+	public void runWhenSpringIntegrationIsNotEnabledShouldNotHaveEndpointBean() {
+		ApplicationContextRunner noSiRunner = new ApplicationContextRunner()
+				.withConfiguration(AutoConfigurations.of(
+						IntegrationGraphEndpointAutoConfiguration.class));
+		noSiRunner.run((context) -> {
+			assertThat(context).doesNotHaveBean(IntegrationGraphEndpoint.class);
+			assertThat(context).doesNotHaveBean(IntegrationGraphServer.class);
+		});
 	}
 
 }

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/integration/IntegrationGraphEndpoint.java

@@ -28,31 +28,28 @@ import org.springframework.integration.support.management.graph.IntegrationGraph
  * @author Tim Ysewyn
  * @since 2.1.0
  */
-@Endpoint(id = "integrationgraph", enableByDefault = false)
+@Endpoint(id = "integrationgraph")
 public class IntegrationGraphEndpoint {
 
-	private final IntegrationGraphServer integrationGraphServer;
+	private final IntegrationGraphServer graphServer;
 
 	/**
-	 * Creates a new {@code IntegrationGraphEndpoint} that exposes a graph containing all the
-	 * Spring Integration components in the given {@code integrationGraphServer}.
-	 *
-	 * @param integrationGraphServer the integration graph server
-	 * @see IntegrationGraphServer
+	 * Create a new {@code IntegrationGraphEndpoint} that exposes a graph containing all
+	 * the Spring Integration components in the given {@link IntegrationGraphServer}.
+	 * @param graphServer the integration graph server
 	 */
-	public IntegrationGraphEndpoint(IntegrationGraphServer integrationGraphServer) {
-		this.integrationGraphServer = integrationGraphServer;
+	public IntegrationGraphEndpoint(IntegrationGraphServer graphServer) {
+		this.graphServer = graphServer;
 	}
 
 	@ReadOperation
 	public Graph graph() {
-		return this.integrationGraphServer.getGraph();
+		return this.graphServer.getGraph();
 	}
 
-
 	@WriteOperation
 	public void rebuild() {
-		this.integrationGraphServer.rebuild();
+		this.graphServer.rebuild();
 	}
 
 }

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/integration/package-info.java

@@ -15,6 +15,6 @@
  */
 
 /**
- * Actuator support relating to Spring Integration.
+ * Actuator support for Spring Integration.
  */
 package org.springframework.boot.actuate.integration;

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/integration/IntegrationGraphEndpointTests.java

@@ -49,21 +49,18 @@ public class IntegrationGraphEndpointTests {
 	}
 
 	@Test
-	public void shouldReturnGraph() {
+	public void readOperationShouldReturnGraph() {
 		Graph mockedGraph = mock(Graph.class);
 		when(this.integrationGraphServer.getGraph()).thenReturn(mockedGraph);
 
 		Graph graph = this.integrationGraphEndpoint.graph();
-
 		verify(this.integrationGraphServer).getGraph();
-
 		assertThat(graph).isEqualTo(mockedGraph);
 	}
 
 	@Test
-	public void shouldRebuildGraph() {
+	public void writeOperationShouldRebuildGraph() {
 		this.integrationGraphEndpoint.rebuild();
-
 		verify(this.integrationGraphServer).rebuild();
 	}
 

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/integration/IntegrationGraphEndpointWebIntegrationTests.java

@@ -41,7 +41,7 @@ public class IntegrationGraphEndpointWebIntegrationTests {
 	public void graph() {
 		client.get().uri("/actuator/integrationgraph").accept(MediaType.APPLICATION_JSON).exchange()
 				.expectStatus().isOk().expectBody()
-				.jsonPath("contentDescriptor.providerVersion").isEqualTo("5.0.3.RELEASE")
+				.jsonPath("contentDescriptor.providerVersion").isNotEmpty()
 				.jsonPath("contentDescriptor.providerFormatVersion").isEqualTo(1.0f)
 				.jsonPath("contentDescriptor.provider").isEqualTo("spring-integration");
 	}

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/integration/IntegrationAutoConfiguration.java

@@ -43,7 +43,6 @@ import org.springframework.integration.jdbc.store.JdbcMessageStore;
 import org.springframework.integration.jmx.config.EnableIntegrationMBeanExport;
 import org.springframework.integration.monitor.IntegrationMBeanExporter;
 import org.springframework.integration.support.management.IntegrationManagementConfigurer;
-import org.springframework.integration.support.management.graph.IntegrationGraphServer;
 import org.springframework.util.StringUtils;
 
 /**
@@ -55,7 +54,6 @@ import org.springframework.util.StringUtils;
  * @author Stephane Nicoll
  * @author Vedran Pavic
  * @author Madhura Bhave
- * @author Tim Ysewyn
  * @since 1.1.0
  */
 @Configuration
@@ -71,12 +69,6 @@ public class IntegrationAutoConfiguration {
 	@EnableIntegration
 	protected static class IntegrationConfiguration {
 
-		@Bean
-		@ConditionalOnMissingBean
-		public IntegrationGraphServer integrationGraphServer() {
-			return new IntegrationGraphServer();
-		}
-
 	}
 
 	/**

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/integration/IntegrationAutoConfigurationTests.java

@@ -42,7 +42,6 @@ import org.springframework.integration.gateway.RequestReplyExchanger;
 import org.springframework.integration.handler.MessageProcessor;
 import org.springframework.integration.support.channel.HeaderChannelRegistry;
 import org.springframework.integration.support.management.IntegrationManagementConfigurer;
-import org.springframework.integration.support.management.graph.IntegrationGraphServer;
 import org.springframework.jdbc.BadSqlGrammarException;
 import org.springframework.jdbc.core.JdbcOperations;
 import org.springframework.jmx.export.MBeanExporter;
@@ -56,7 +55,6 @@ import static org.mockito.Mockito.mock;
  * @author Artem Bilan
  * @author Stephane Nicoll
  * @author Vedran Pavic
- * @author Tim Ysewyn
  */
 public class IntegrationAutoConfigurationTests {
 
@@ -70,7 +68,6 @@ public class IntegrationAutoConfigurationTests {
 	@Test
 	public void integrationIsAvailable() {
 		this.contextRunner.run((context) -> {
-			assertThat(context).hasSingleBean(IntegrationGraphServer.class);
 			assertThat(context).hasSingleBean(TestGateway.class);
 			assertThat(context)
 					.hasSingleBean(IntegrationComponentScanAutoConfiguration.class);

spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc

@@ -106,8 +106,8 @@ exchanges).
 |Yes
 
 |`integrationgraph`
-|Exposes the Spring Integration graph.
-|No
+|Shows the Spring Integration graph.
+|Yes
 
 |`loggers`
 |Shows and modifies the configuration of loggers in the application.