Added metaDataUri to AppRegistrationResource

Added metaDataUri to AppRegistrationResource
Added test for presence of metaDataUri

Fixes spring-attic#6092

Fix AppRegistryDocumentation and StreamDefinitionsDocumentation for changed resource.

Adds metaDataUri to AppRegistryDocumentation and StreamDefinitionsDocumentation

Polish: Add test to register app without metadata

Author: Corneil du Plessis

spring-cloud-dataflow-classic-docs/src/test/java/org/springframework/cloud/dataflow/server/rest/documentation/AppRegistryDocumentation.java

@@ -176,6 +176,7 @@ void getSingleApplication() throws Exception {
 										fieldWithPath("label").description("The label name of the application"),
 										fieldWithPath("type").description("The type of the application. One of " + Arrays.asList(ApplicationType.values())),
 										fieldWithPath("uri").description("The uri of the application"),
+										fieldWithPath("metaDataUri").description("The uri of the application metadata").optional(),
 										fieldWithPath("version").description("The version of the application"),
 										fieldWithPath("versions").description("All the registered versions of the application"),
 										fieldWithPath("defaultVersion").description("If true, the application is the default version"),

spring-cloud-dataflow-classic-docs/src/test/java/org/springframework/cloud/dataflow/server/rest/documentation/StreamDefinitionsDocumentation.java

@@ -164,6 +164,7 @@ void getStreamApplications() throws Exception {
 								fieldWithPath("[].type").description("The type of the application. One of " + Arrays
 										.asList(ApplicationType.values())),
 								fieldWithPath("[].uri").description("The uri of the application"),
+								fieldWithPath("[].metaDataUri").description("The uri of the application metadata"),
 								fieldWithPath("[].version").description("The version of the application"),
 								fieldWithPath("[].defaultVersion").description("If true, the application is the default version"),
 								fieldWithPath("[].versions").description("All the registered versions of the application"),

spring-cloud-dataflow-rest-resource/src/main/java/org/springframework/cloud/dataflow/rest/resource/AppRegistrationResource.java

@@ -47,6 +47,10 @@ public class AppRegistrationResource extends RepresentationModel<AppRegistration
 	 */
 	private String uri;
 
+	/**
+	 * URI for app metaData
+	 */
+	private String metaDataUri;
 	/**
 	 * App version.
 	 */
@@ -74,7 +78,7 @@ protected AppRegistrationResource() {
 	}
 
 	public AppRegistrationResource(String name, String type, String uri) {
-		this(name, type, null, uri, false);
+		this(name, type, null, uri, null, false);
 	}
 
 	/**
@@ -86,11 +90,12 @@ public AppRegistrationResource(String name, String type, String uri) {
 	 * @param uri uri for app resource
 	 * @param defaultVersion is this application selected to the be default version in DSL
 	 */
-	public AppRegistrationResource(String name, String type, String version, String uri, Boolean defaultVersion) {
+	public AppRegistrationResource(String name, String type, String version, String uri, String metaDataUri, Boolean defaultVersion) {
 		this.name = name;
 		this.type = type;
 		this.version = version;
 		this.uri = uri;
+		this.metaDataUri = metaDataUri;
 		this.defaultVersion = defaultVersion;
 	}
 
@@ -101,14 +106,16 @@ public AppRegistrationResource(String name, String type, String version, String
 	 * @param type app type
 	 * @param version app version
 	 * @param uri uri for app resource
+	 * @param metaDataUri uri for app metadata
 	 * @param defaultVersion is this application selected to the be default version in DSL
 	 * @param versions all the registered versions of this application
 	 */
-	public AppRegistrationResource(String name, String type, String version, String uri, Boolean defaultVersion, Set<String> versions) {
+	public AppRegistrationResource(String name, String type, String version, String uri, String metaDataUri, Boolean defaultVersion, Set<String> versions) {
 		this.name = name;
 		this.type = type;
 		this.version = version;
 		this.uri = uri;
+		this.metaDataUri = metaDataUri;
 		this.defaultVersion = defaultVersion;
 		this.versions = versions;
 	}
@@ -120,15 +127,17 @@ public AppRegistrationResource(String name, String type, String version, String
 	 * @param type app type
 	 * @param version app version
 	 * @param uri uri for app resource
+	 * @param metaDataUri uri for app metadata
 	 * @param defaultVersion is this application selected to the be default version in DSL
 	 * @param versions all the registered versions of this application
 	 * @param label the label name of the application
 	 */
-	public AppRegistrationResource(String name, String type, String version, String uri, Boolean defaultVersion, Set<String> versions, String label) {
+	public AppRegistrationResource(String name, String type, String version, String uri, String metaDataUri, Boolean defaultVersion, Set<String> versions, String label) {
 		this.name = name;
 		this.type = type;
 		this.version = version;
 		this.uri = uri;
+		this.metaDataUri = metaDataUri;
 		this.defaultVersion = defaultVersion;
 		this.versions = versions;
 		this.label = label;
@@ -184,6 +193,10 @@ public void setLabel(String label) {
 		this.label = label;
 	}
 
+	public String getMetaDataUri() {
+		return metaDataUri;
+	}
+
 	/**
 	 * Dedicated subclass to workaround type erasure.
 	 */

spring-cloud-dataflow-rest-resource/src/main/java/org/springframework/cloud/dataflow/rest/resource/DetailedAppRegistrationResource.java

@@ -78,7 +78,7 @@ protected DetailedAppRegistrationResource() {
 	 * @param isDefault is this the default app
 	 */
 	public DetailedAppRegistrationResource(String name, String type, String version, String coordinates,  Boolean isDefault) {
-		super(name, type, version, coordinates, isDefault);
+		super(name, type, version, coordinates, null, isDefault);
 	}
 
 	/**
@@ -89,7 +89,7 @@ public DetailedAppRegistrationResource(String name, String type, String version,
 	 * data
 	 */
 	public DetailedAppRegistrationResource(AppRegistrationResource resource) {
-		super(resource.getName(), resource.getType(), resource.getVersion(), resource.getUri(), resource.getDefaultVersion());
+		super(resource.getName(), resource.getType(), resource.getVersion(), resource.getUri(), resource.getMetaDataUri(), resource.getDefaultVersion());
 	}
 
 	/**

spring-cloud-dataflow-server-core/src/main/java/org/springframework/cloud/dataflow/server/controller/assembler/DefaultAppRegistrationAssembler.java

@@ -44,12 +44,14 @@ protected R instantiateModel(AppRegistration registration) {
 						registration.getType().name(),
 						registration.getVersion(),
 						registration.getUri().toString(),
+						registration.getMetadataUri() != null ? registration.getMetadataUri().toString() : null,
 						registration.isDefaultVersion()
 				) : new AppRegistrationResource(
 						registration.getName(),
 						registration.getType().name(),
 						registration.getVersion(),
 						registration.getUri().toString(),
+						registration.getMetadataUri() != null ? registration.getMetadataUri().toString() : null,
 						registration.isDefaultVersion(),
 						registration.getVersions()
 				);

spring-cloud-dataflow-server-core/src/test/java/org/springframework/cloud/dataflow/server/controller/AppRegistryControllerTests.java

@@ -123,18 +123,36 @@ void registerVersionedApp() throws Exception {
 		assertThat(this.appRegistryService.find("log1", ApplicationType.sink).getUri()).hasToString("maven://org.springframework.cloud.stream.app:log-sink-rabbit:1.2.0.RELEASE");
 	}
 
+	@Test
+	void findRegisteredAppNoMetadata() throws Exception {
+		// given
+		mockMvc.perform(
+			post("/apps/sink/log1/3.0.0")
+				.queryParam("bootVersion", "3")
+				.param("uri", "maven://org.springframework.cloud.stream.app:log-sink-rabbit:3.0.0")
+				.accept(MediaType.APPLICATION_JSON)
+		).andExpect(status().isCreated());
+		// when
+		AppRegistration registration = this.appRegistryService.find("log1", ApplicationType.sink);
+		// then
+		assertThat(registration.getUri()).hasToString("maven://org.springframework.cloud.stream.app:log-sink-rabbit:3.0.0");
+	}
+
 	@Test
 	void findRegisteredApp() throws Exception {
 		// given
 		mockMvc.perform(
 				post("/apps/sink/log1/3.0.0")
 						.queryParam("bootVersion", "3")
-						.param("uri", "maven://org.springframework.cloud.stream.app:log-sink-rabbit:3.0.0").accept(MediaType.APPLICATION_JSON)
+						.param("uri", "maven://org.springframework.cloud.stream.app:log-sink-rabbit:3.0.0")
+						.param("metadata-uri", "maven://org.springframework.cloud.stream.app:log-sink-rabbit:jar:metadata:3.0.0")
+						.accept(MediaType.APPLICATION_JSON)
 				).andExpect(status().isCreated());
 		// when
 		AppRegistration registration = this.appRegistryService.find("log1", ApplicationType.sink);
 		// then
 		assertThat(registration.getUri()).hasToString("maven://org.springframework.cloud.stream.app:log-sink-rabbit:3.0.0");
+		assertThat(registration.getMetadataUri()).hasToString("maven://org.springframework.cloud.stream.app:log-sink-rabbit:jar:metadata:3.0.0");
 	}
 
 	@Test