initial commit of a working actuator.

modules/activiti-spring-boot/spring-boot-starters/spring-boot-starter-actuator/pom.xml

@@ -17,10 +17,25 @@
             <artifactId>spring-boot-starter-basic</artifactId>
             <version>${project.version}</version>
         </dependency>
+
+        <dependency>
+            <groupId>org.activiti</groupId>
+            <artifactId>activiti-image-generator</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.activiti</groupId>
+            <artifactId>activiti-bpmn-model</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-actuator</artifactId>
         </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <optional>true</optional>
+        </dependency>
     </dependencies>
 
 </project>
\ No newline at end of file

modules/activiti-spring-boot/spring-boot-starters/spring-boot-starter-actuator/src/main/java/org/activiti/spring/boot/actuate/endpoint/EndpointAutoConfiguration.java

 package org.activiti.spring.boot.actuate.endpoint;
 
 import org.activiti.engine.ProcessEngine;
+import org.activiti.engine.RepositoryService;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
@@ -15,8 +16,13 @@ import org.springframework.context.annotation.Configuration;
 public class EndpointAutoConfiguration {
 
     @Bean
-    public ProcessEngineEndpoint processEngineMetric( ProcessEngine engine){
-        return new ProcessEngineEndpoint( engine)  ;
+    public ProcessEngineEndpoint processEngineEndpoint(ProcessEngine engine) {
+        return new ProcessEngineEndpoint(engine);
     }
 
+    @Bean
+    public ProcessEngineMvcEndpoint processEngineMvcEndpoint(
+            ProcessEngineEndpoint engineEndpoint, RepositoryService repositoryService) {
+        return new ProcessEngineMvcEndpoint(engineEndpoint, repositoryService);
+    }
 }

modules/activiti-spring-boot/spring-boot-starters/spring-boot-starter-actuator/src/main/java/org/activiti/spring/boot/actuate/endpoint/ProcessEngineEndpoint.java

@@ -7,6 +7,12 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 
 import java.util.List;
 
+/**
+ * Registers a Boot Actuator endpoint that provides information on the
+ * running process instance and renders BPMN diagrams of the deployed processes.
+ *
+ * @author Josh Long
+ */
 @ConfigurationProperties(prefix = "endpoints.activiti")
 public class ProcessEngineEndpoint extends AbstractEndpoint<List<HistoricDetail>> {
 
@@ -26,13 +32,3 @@ public class ProcessEngineEndpoint extends AbstractEndpoint<List<HistoricDetail>
                 .list();
     }
 }
-
-    /*  ProcessDefinition processDefinition = repositoryService
-                .createProcessDefinitionQuery().processDefinitionKey(pd).singleResult();
-        ProcessDiagramGenerator processDiagramGenerator = new DefaultProcessDiagramGenerator();
-        InputStream is = processDiagramGenerator
-                .generatePngDiagram(repositoryService
-                        .getBpmnModel(processDefinition.getId()));
-
-        return new InputStreamResource(is);
-        */
\ No newline at end of file

modules/activiti-spring-boot/spring-boot-starters/spring-boot-starter-actuator/src/main/java/org/activiti/spring/boot/actuate/endpoint/ProcessEngineMvcEndpoint.java

+package org.activiti.spring.boot.actuate.endpoint;
+
+import org.activiti.bpmn.model.BpmnModel;
+import org.activiti.engine.RepositoryService;
+import org.activiti.engine.repository.ProcessDefinition;
+import org.activiti.image.ProcessDiagramGenerator;
+import org.activiti.image.impl.DefaultProcessDiagramGenerator;
+import org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter;
+import org.springframework.core.io.InputStreamResource;
+import org.springframework.core.io.Resource;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import java.io.InputStream;
+
+/**
+ * Renders a valid running BPMN process definition as a BPMN diagram.
+ *
+ * This is duplicative of the functionality in the full REST API implementation.
+ *
+ * @author Joram Barrez
+ * @author Josh Long
+ */
+public class ProcessEngineMvcEndpoint extends EndpointMvcAdapter {
+
+    private final RepositoryService repositoryService;
+
+    public ProcessEngineMvcEndpoint(ProcessEngineEndpoint processEngineEndpoint, RepositoryService repositoryService) {
+        super(processEngineEndpoint);
+        this.repositoryService = repositoryService;
+    }
+
+    @RequestMapping(value = "/processes/{processDefinitionKey:.*}", method = RequestMethod.GET, produces = MediaType.IMAGE_JPEG_VALUE)
+    @ResponseBody
+    public Resource processDefinitionDiagram(@PathVariable String processDefinitionKey) {
+        ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
+                .processDefinitionKey(processDefinitionKey).singleResult();
+        ProcessDiagramGenerator processDiagramGenerator = new DefaultProcessDiagramGenerator();
+        BpmnModel bpmnModel = repositoryService.getBpmnModel(processDefinition.getId());
+        InputStream is = processDiagramGenerator.generateJpgDiagram(bpmnModel);
+        return new InputStreamResource(is);
+    }
+
+}

modules/activiti-spring-boot/spring-boot-starters/spring-boot-starter-basic/src/test/java/org/activiti/spring/boot/TestProcessEngineAutoConfiguration.java

@@ -33,7 +33,7 @@ public class TestProcessEngineAutoConfiguration {
     public static class SimpleDataSourceConfiguration {
 
         @Bean
-        public TaskExecutor taskExecutor() {
+        TaskExecutor taskExecutor() {
             return new SimpleAsyncTaskExecutor();
         }