Add task thin executions by name and fix missing docs.

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

@@ -115,14 +115,14 @@ void index() throws Exception {
 				linkWithRel("tasks/executions/external").description("Returns Task execution by external id"),
 				linkWithRel("tasks/executions/current").description("Provides the current count of running tasks"),
 				linkWithRel("tasks/thinexecutions").description("Returns thin Task executions"),
+				linkWithRel("tasks/thinexecutions/name").description("Returns thin Task executions for a given task name"),
 				linkWithRel("tasks/info/executions").description("Provides the task executions info"),
 				linkWithRel("tasks/schedules").description("Provides schedule information of tasks"),
 				linkWithRel("tasks/schedules/instances").description("Provides schedule information of a specific task	"),
 				linkWithRel("tasks/executions/name").description("Returns all task executions for a given Task name"),
 				linkWithRel("tasks/executions/execution").description("Provides details for a specific task execution"),
 				linkWithRel("tasks/platforms").description("Provides platform accounts for launching tasks.  The results can be filtered to show the platforms that support scheduling by adding a request parameter of 'schedulesEnabled=true"),
 				linkWithRel("tasks/logs").description("Retrieve the task application log"),
-				linkWithRel("tasks/thinexecutions").description("Returns thin Task executions"),
 
 				linkWithRel("streams/definitions").description("Exposes the Streams resource"),
 				linkWithRel("streams/definitions/definition").description("Handle a specific Stream definition"),
@@ -221,14 +221,15 @@ void index() throws Exception {
 
 						fieldWithPath("_links.tasks/thinexecutions.href").description("Link to the tasks/thinexecutions"),
 
+						fieldWithPath("_links.tasks/thinexecutions/name.href").description("Link to the tasks/thinexecutions/name"),
+						fieldWithPath("_links.tasks/thinexecutions/name.templated").description("Link to the tasks/thinexecutions/name is templated"),
+
 						fieldWithPath("_links.tasks/info/executions.href").description("Link to the tasks/info/executions"),
 						fieldWithPath("_links.tasks/info/executions.templated").type(JsonFieldType.BOOLEAN).optional().description("Link tasks/info is templated"),
 
 						fieldWithPath("_links.tasks/logs.href").description("Link to the tasks/logs"),
 						fieldWithPath("_links.tasks/logs.templated").type(JsonFieldType.BOOLEAN).optional().description("Link tasks/logs is templated"),
 
-						fieldWithPath("_links.tasks/thinexecutions.href").description("Link to the tasks/thinexecutions"),
-
 						fieldWithPath("_links.tasks/schedules.href").description("Link to the tasks/executions/schedules"),
 						fieldWithPath("_links.tasks/schedules/instances.href").description("Link to the tasks/schedules/instances"),
 						fieldWithPath("_links.tasks/schedules/instances.templated").type(JsonFieldType.BOOLEAN).optional().description("Link tasks/schedules/instances is templated"),

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

@@ -312,9 +312,9 @@ void listTaskThinExecutions() throws Exception {
 	}
 
 	@Test
-	void listTaskExecutionsByName() throws Exception {
+	void listTaskThinExecutionsByName() throws Exception {
 		this.mockMvc.perform(
-						get("/tasks/executions")
+						get("/tasks/thinexecutions")
 								.queryParam("name", "taskB")
 								.queryParam("page", "0")
 								.queryParam("size", "10")
@@ -328,11 +328,33 @@ void listTaskExecutionsByName() throws Exception {
 								parameterWithName("name")
 										.description("The name associated with the task execution")),
 						responseFields(
-								subsectionWithPath("_embedded.taskExecutionResourceList")
-										.description("Contains a collection of Task Executions/"),
+							subsectionWithPath("_embedded.taskExecutionThinResourceList")
+								.description("Contains a collection of thin Task Executions/"),
 								subsectionWithPath("_links.self").description("Link to the task execution resource"),
 								subsectionWithPath("page").description("Pagination properties"))));
 	}
+	@Test
+	void listTaskExecutionsByName() throws Exception {
+		this.mockMvc.perform(
+				get("/tasks/executions")
+					.queryParam("name", "taskB")
+					.queryParam("page", "0")
+					.queryParam("size", "10")
+			)
+			.andExpect(status().isOk()).andDo(this.documentationHandler.document(
+				queryParameters(
+					parameterWithName("page")
+						.description("The zero-based page number (optional)"),
+					parameterWithName("size")
+						.description("The requested page size (optional)"),
+					parameterWithName("name")
+						.description("The name associated with the task execution")),
+				responseFields(
+					subsectionWithPath("_embedded.taskExecutionResourceList")
+						.description("Contains a collection of Task Executions/"),
+					subsectionWithPath("_links.self").description("Link to the task execution resource"),
+					subsectionWithPath("page").description("Pagination properties"))));
+	}
 
 	@Test
 	void stopTask() throws Exception {

spring-cloud-dataflow-docs/src/main/asciidoc/api-guide.adoc

@@ -2067,6 +2067,85 @@ include::{snippets}/task-executions-documentation/list-task-executions-by-name/c
 include::{snippets}/task-executions-documentation/list-task-executions-by-name/http-response.adoc[]
 
 
+[[api-guide-resources-task-thin-executions-list]]
+==== List All Task Thin Executions
+
+The task executions endpoint lets you list all task executions with only top-level data.
+The following topics provide more details:
+
+* <<api-guide-resources-task-thin-executions-list-request-structure>>
+* <<api-guide-resources-task-thin-executions-list-request-parameters>>
+* <<api-guide-resources-task-thin-executions-list-example-request>>
+* <<api-guide-resources-task-thin-executions-list-response-structure>>
+
+
+
+[[api-guide-resources-task-thin-executions-list-request-structure]]
+===== Request Structure
+
+include::{snippets}/task-executions-documentation/list-task-thin-executions/http-request.adoc[]
+
+
+
+[[api-guide-resources-task-thin-executions-list-request-parameters]]
+===== Request Parameters
+
+include::{snippets}/task-executions-documentation/list-task-thin-executions/request-parameters.adoc[]
+
+
+
+[[api-guide-resources-task-thin-executions-list-example-request]]
+===== Example Request
+
+include::{snippets}/task-executions-documentation/list-task-thin-executions/curl-request.adoc[]
+
+
+
+[[api-guide-resources-task-thin-executions-list-response-structure]]
+===== Response Structure
+
+include::{snippets}/task-executions-documentation/list-task-thin-executions/http-response.adoc[]
+
+
+
+[[api-guide-resources-task-thin-executions-list-by-name]]
+==== List All Task Thin Executions With a Specified Task Name
+
+The task thin executions endpoint lets you list task executions with a specified task name.
+The following topics provide more details:
+
+* <<api-guide-resources-task-thin-executions-list-by-name-request-structure>>
+* <<api-guide-resources-task-thin-executions-list-by-name-request-parameters>>
+* <<api-guide-resources-task-thin-executions-list-by-name-example-request>>
+* <<api-guide-resources-task-thin-executions-list-by-name-response-structure>>
+
+
+
+[[api-guide-resources-task-thin-executions-list-by-name-request-structure]]
+===== Request Structure
+
+include::{snippets}/task-executions-documentation/list-task-thin-executions-by-name/http-request.adoc[]
+
+
+
+[[api-guide-resources-task-thin-executions-list-by-name-request-parameters]]
+===== Request Parameters
+
+include::{snippets}/task-executions-documentation/list-task-thin-executions-by-name/request-parameters.adoc[]
+
+
+
+[[api-guide-resources-task-thin-executions-list-by-name-example-request]]
+===== Example Request
+
+include::{snippets}/task-executions-documentation/list-task-thin-executions-by-name/curl-request.adoc[]
+
+
+
+[[api-guide-resources-task-thin-executions-list-by-name-response-structure]]
+===== Response Structure
+
+include::{snippets}/task-executions-documentation/list-task-thin-executions-by-name/http-response.adoc[]
 
 [[api-guide-resources-task-executions-detail]]
 ==== Task Execution Detail

spring-cloud-dataflow-docs/src/main/asciidoc/configuration.adoc

@@ -661,6 +661,7 @@ spring:
             - DELETE /tasks/executions/*             => hasRole('ROLE_DESTROY')
 
             - GET    /tasks/thinexecutions           => hasRole('ROLE_VIEW')
+			- GET    /tasks/thinexecutions/*         => hasRole('ROLE_VIEW')
 
             # Task Schedules
 

spring-cloud-dataflow-rest-client/src/main/java/org/springframework/cloud/dataflow/rest/client/TaskOperations.java

@@ -113,6 +113,12 @@ public interface TaskOperations {
 	 */
 	PagedModel<TaskExecutionThinResource> thinExecutionList();
 
+	/**
+	 * List task executions filtered by task name.
+	 * @return the page of task executions for the given task name.
+	 */
+	PagedModel<TaskExecutionThinResource> thinExecutionListByTaskName(String taskName);
+
 	/**
 	 * List task executions known to the system filtered by task name.
 	 *

spring-cloud-dataflow-rest-client/src/main/java/org/springframework/cloud/dataflow/rest/client/TaskTemplate.java

@@ -71,6 +71,8 @@ public class TaskTemplate implements TaskOperations {
 
 	private static final String THIN_EXECUTIONS_RELATION = "tasks/thinexecutions";
 
+	private static final String THIN_EXECUTIONS_BY_NAME_RELATION = "tasks/thinexecutions/name";
+
 	private static final String EXECUTIONS_CURRENT_RELATION = "tasks/executions/current";
 
 	private static final String EXECUTION_RELATION = "tasks/executions/execution";
@@ -97,6 +99,8 @@ public class TaskTemplate implements TaskOperations {
 
 	private final Link thinExecutionsLink;
 
+	private final Link thinExecutionsByNameLink;
+
 	private final Link executionLink;
 
 	private final Link executionLaunchLink;
@@ -160,6 +164,12 @@ public class TaskTemplate implements TaskOperations {
 		} else {
 			this.thinExecutionsLink = null;
 		}
+		if(resources.getLink(THIN_EXECUTIONS_BY_NAME_RELATION).isPresent()) {
+			this.thinExecutionsByNameLink = resources.getLink(THIN_EXECUTIONS_BY_NAME_RELATION).get();
+		} else {
+			this.thinExecutionsByNameLink = null;
+		}
+
 		if(resources.getLink(EXECUTION_LAUNCH_RELATION).isPresent()) {
 			this.executionLaunchLink = resources.getLink(EXECUTION_LAUNCH_RELATION).get();
 		} else {
@@ -275,6 +285,15 @@ public PagedModel<TaskExecutionThinResource> thinExecutionList() {
 		}
 	}
 
+	@Override
+	public PagedModel<TaskExecutionThinResource> thinExecutionListByTaskName(String taskName) {
+		if(thinExecutionsByNameLink != null) {
+			return restTemplate.getForObject(thinExecutionsByNameLink.expand(taskName).getHref(), TaskExecutionThinResource.Page.class);
+		} else {
+			return restTemplate.getForObject(executionByNameLink.expand(taskName).getHref(), TaskExecutionThinResource.Page.class);
+		}
+	}
+
 	@Override
 	public TaskExecutionResource.Page executionListByTaskName(String taskName) {
 		return restTemplate.getForObject(executionByNameLink.expand(taskName).getHref(),

spring-cloud-dataflow-server-core/src/main/java/org/springframework/cloud/dataflow/server/config/DataFlowControllerAutoConfiguration.java

@@ -286,8 +286,8 @@ public TaskExecutionController taskExecutionController(
 		}
 
 		@Bean
-		public TaskExecutionThinController taskExecutionThinController(DataflowTaskExplorer taskExplorer) {
-			return new TaskExecutionThinController(taskExplorer);
+		public TaskExecutionThinController taskExecutionThinController(DataflowTaskExplorer taskExplorer, TaskDefinitionRepository taskDefinitionRepository) {
+			return new TaskExecutionThinController(taskExplorer, taskDefinitionRepository);
 		}
 
 		@Bean

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

@@ -155,6 +155,7 @@ public RootResource info() {
 			root.add(linkTo(methodOn(TasksInfoController.class).getInfo(null, null, null)).withRel("tasks/info/executions"));
 			root.add(linkTo(methodOn(TaskLogsController.class).getLog(null, null)).withRel("tasks/logs"));
 			root.add(linkTo(methodOn(TaskExecutionThinController.class).listTasks(null, null)).withRel("tasks/thinexecutions"));
+			root.add(linkTo(methodOn(TaskExecutionThinController.class).retrieveTasksByName(null,null, null)).withRel("tasks/thinexecutions/name"));
 
 			if (featuresProperties.isSchedulesEnabled()) {
 				root.add(entityLinks.linkToCollectionResource(ScheduleInfoResource.class).withRel("tasks/schedules"));

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

@@ -185,9 +185,11 @@ public PagedModel<TaskExecutionResource> retrieveTasksByName(
 			Pageable pageable,
 			PagedResourcesAssembler<TaskJobExecutionRel> assembler
 	) {
+		long tasks = this.taskDefinitionRepository.countByTaskName(taskName);
+		if(tasks == 0) {
+			throw new NoSuchTaskDefinitionException(taskName);
+		}
 		validatePageable(pageable);
-		this.taskDefinitionRepository.findById(taskName)
-				.orElseThrow(() -> new NoSuchTaskDefinitionException(taskName));
 		Page<TaskExecution> taskExecutions = this.explorer.findTaskExecutionsByName(taskName, pageable);
 		Page<TaskJobExecutionRel> result = getPageableRelationships(taskExecutions, pageable);
 		return assembler.toModel(result, this.taskAssembler);

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

@@ -18,6 +18,8 @@
 
 import org.springframework.cloud.dataflow.core.ThinTaskExecution;
 import org.springframework.cloud.dataflow.rest.resource.TaskExecutionThinResource;
+import org.springframework.cloud.dataflow.server.repository.NoSuchTaskDefinitionException;
+import org.springframework.cloud.dataflow.server.repository.TaskDefinitionRepository;
 import org.springframework.cloud.dataflow.server.task.DataflowTaskExplorer;
 import org.springframework.cloud.task.repository.TaskExecution;
 import org.springframework.data.domain.Page;
@@ -30,6 +32,7 @@
 import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseStatus;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -46,10 +49,12 @@
 public class TaskExecutionThinController {
 
 	private final DataflowTaskExplorer explorer;
+	private final TaskDefinitionRepository taskDefinitionRepository;
 	private final TaskExecutionThinResourceAssembler resourceAssembler;
 
-	public TaskExecutionThinController(DataflowTaskExplorer explorer) {
+	public TaskExecutionThinController(DataflowTaskExplorer explorer, TaskDefinitionRepository taskDefinitionRepository) {
 		this.explorer = explorer;
+		this.taskDefinitionRepository = taskDefinitionRepository;
 		this.resourceAssembler = new TaskExecutionThinResourceAssembler();
 	}
 
@@ -62,6 +67,23 @@ public PagedModel<TaskExecutionThinResource> listTasks(Pageable pageable, PagedR
 		return pagedAssembler.toModel(thinTaskExecutions, resourceAssembler);
 	}
 
+	@GetMapping(value = "", params = "name")
+	@ResponseStatus(HttpStatus.OK)
+	public PagedModel<TaskExecutionThinResource> retrieveTasksByName(
+		@RequestParam("name") String taskName,
+		Pageable pageable,
+		PagedResourcesAssembler<ThinTaskExecution> pagedAssembler
+	) {
+		long tasks = this.taskDefinitionRepository.countByTaskName(taskName);
+		if(tasks == 0) {
+			throw new NoSuchTaskDefinitionException(taskName);
+		}
+		Page<TaskExecution> page = this.explorer.findTaskExecutionsByName(taskName, pageable);
+		Page<ThinTaskExecution> thinTaskExecutions = new PageImpl<>(page.stream().map(ThinTaskExecution::new).toList(), pageable, page.getTotalElements());
+		explorer.populateCtrStatus(thinTaskExecutions.getContent());
+		return pagedAssembler.toModel(thinTaskExecutions, resourceAssembler);
+	}
+
 	static class TaskExecutionThinResourceAssembler extends RepresentationModelAssemblerSupport<ThinTaskExecution, TaskExecutionThinResource> {
 		public TaskExecutionThinResourceAssembler() {
 			super(TaskExecutionThinController.class, TaskExecutionThinResource.class);

spring-cloud-dataflow-server-core/src/main/java/org/springframework/cloud/dataflow/server/repository/TaskDefinitionRepository.java

@@ -46,4 +46,5 @@ public interface TaskDefinitionRepository extends KeyValueRepository<TaskDefinit
 	 */
 	TaskDefinition findByTaskName(String name);
 
+    long countByTaskName(String taskName);
 }

spring-cloud-dataflow-server-core/src/main/java/org/springframework/cloud/dataflow/server/task/impl/DefaultDataFlowTaskExecutionQueryDao.java

@@ -522,20 +522,19 @@ private List<String> getTaskArguments(long taskExecutionId) {
 
 	@Override
 	public void populateCtrStatus(Collection<ThinTaskExecution> thinTaskExecutions) {
-		Map<Long, ThinTaskExecution> taskExecutionMap = thinTaskExecutions.stream()
+		if(!thinTaskExecutions.isEmpty()) {
+			Map<Long, ThinTaskExecution> taskExecutionMap = thinTaskExecutions.stream()
 				.collect(Collectors.toMap(ThinTaskExecution::getExecutionId, Function.identity()));
-		String ids = taskExecutionMap.keySet()
-				.stream()
-				.map(Object::toString)
-				.collect(Collectors.joining(","));
-		String sql = FIND_CTR_STATUS.replace(":taskExecutionIds", ids);
-		jdbcTemplate.query(sql, rs -> {
-			Long id = rs.getLong("TASK_EXECUTION_ID");
-			String ctrStatus = rs.getString("CTR_STATUS");
-			logger.debug("populateCtrStatus:{}={}", id, ctrStatus);
-			ThinTaskExecution execution = taskExecutionMap.get(id);
-			Assert.notNull(execution, "Expected TaskExecution for " + id + " from " + ids);
-			execution.setCtrTaskStatus(ctrStatus);
-		});
+			String ids = taskExecutionMap.keySet().stream().map(Object::toString).collect(Collectors.joining(","));
+			String sql = FIND_CTR_STATUS.replace(":taskExecutionIds", ids);
+			jdbcTemplate.query(sql, rs -> {
+				Long id = rs.getLong("TASK_EXECUTION_ID");
+				String ctrStatus = rs.getString("CTR_STATUS");
+				logger.debug("populateCtrStatus:{}={}", id, ctrStatus);
+				ThinTaskExecution execution = taskExecutionMap.get(id);
+				Assert.notNull(execution, "Expected TaskExecution for " + id + " from " + ids);
+				execution.setCtrTaskStatus(ctrStatus);
+			});
+		}
 	}
 }

spring-cloud-dataflow-server-core/src/main/resources/META-INF/dataflow-server-defaults.yml

@@ -241,6 +241,7 @@ spring:
             - GET    /tasks/info/*                   => hasRole('ROLE_VIEW')
 
             - GET    /tasks/thinexecutions           => hasRole('ROLE_VIEW')
+            - GET    /tasks/thinexecutions/*         => hasRole('ROLE_VIEW')
 
             # Task Schedules
 

spring-cloud-dataflow-server-core/src/test/java/org/springframework/cloud/dataflow/server/configuration/JobDependencies.java

@@ -270,8 +270,8 @@ public TaskExecutionController taskExecutionController(
 	}
 
 	@Bean
-	public TaskExecutionThinController taskExecutionThinController(DataflowTaskExplorer dataflowTaskExplorer) {
-		return new TaskExecutionThinController(dataflowTaskExplorer);
+	public TaskExecutionThinController taskExecutionThinController(DataflowTaskExplorer dataflowTaskExplorer, TaskDefinitionRepository taskDefinitionRepository) {
+		return new TaskExecutionThinController(dataflowTaskExplorer, taskDefinitionRepository);
 	}
 
 	@Bean

spring-cloud-dataflow-server-core/src/test/java/org/springframework/cloud/dataflow/server/configuration/TestDependencies.java

@@ -593,8 +593,8 @@ public TaskExecutionController taskExecutionController(
 	}
 
 	@Bean
-	public TaskExecutionThinController taskExecutionThinController(DataflowTaskExplorer dataflowTaskExplorer) {
-		return new TaskExecutionThinController(dataflowTaskExplorer);
+	public TaskExecutionThinController taskExecutionThinController(DataflowTaskExplorer dataflowTaskExplorer, TaskDefinitionRepository taskDefinitionRepository) {
+		return new TaskExecutionThinController(dataflowTaskExplorer, taskDefinitionRepository);
 	}
 	@Bean
 	public TasksInfoController taskExecutionsInfoController(TaskExecutionService taskExecutionService) {