Merge "Spring Aspect logging"

[nonrtric.git] / policy-agent / src / main / java / org / oransc / policyagent / controllers / ServiceController.java

diff --git a/policy-agent/src/main/java/org/oransc/policyagent/controllers/ServiceController.java b/policy-agent/src/main/java/org/oransc/policyagent/controllers/ServiceController.java
index 464511f..2a34643 100644 (file)
--- a/policy-agent/src/main/java/org/oransc/policyagent/controllers/ServiceController.java
+++ b/policy-agent/src/main/java/org/oransc/policyagent/controllers/ServiceController.java
@@ -23,6 +23,7 @@ package org.oransc.policyagent.controllers;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 
+import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import io.swagger.annotations.ApiResponse;
 import io.swagger.annotations.ApiResponses;
@@ -49,13 +50,13 @@ import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
+@Api(tags = "Service registry and supervision")
 public class ServiceController {
 
     private final Services services;
     private final Policies policies;
 
     private static Gson gson = new GsonBuilder() //
-        .serializeNulls() //
         .create(); //
 
     @Autowired
@@ -67,10 +68,16 @@ public class ServiceController {
     @GetMapping("/services")
     @ApiOperation(value = "Returns service information")
     @ApiResponses(
-        value = {@ApiResponse(code = 200, message = "OK", response = ServiceStatus.class, responseContainer = "List")})
+        value = { //
+            @ApiResponse(code = 200, message = "OK", response = ServiceStatus.class, responseContainer = "List"), //
+            @ApiResponse(code = 404, message = "Service is not found", response = String.class)})
     public ResponseEntity<String> getServices(//
         @RequestParam(name = "name", required = false) String name) {
 
+        if (name != null && this.services.get(name) == null) {
+            return new ResponseEntity<>("Service not found", HttpStatus.NOT_FOUND);
+        }
+
         Collection<ServiceStatus> servicesStatus = new ArrayList<>();
         synchronized (this.services) {
             for (Service s : this.services.getAll()) {
@@ -85,24 +92,40 @@ public class ServiceController {
     }
 
     private ServiceStatus toServiceStatus(Service s) {
-        return new ServiceStatus(s.getName(), s.getKeepAliveInterval().toSeconds(), s.timeSinceLastPing().toSeconds());
+        return new ServiceStatus(s.getName(), s.getKeepAliveInterval().toSeconds(), s.timeSinceLastPing().toSeconds(),
+            s.getCallbackUrl());
+    }
+
+    private void validateRegistrationInfo(ServiceRegistrationInfo registrationInfo) throws ServiceException {
+        if (registrationInfo.serviceName.isEmpty()) {
+            throw new ServiceException("Missing mandatory parameter 'serviceName'");
+        }
     }
 
     @ApiOperation(value = "Register a service")
-    @ApiResponses(value = {@ApiResponse(code = 200, message = "OK", response = String.class)})
+    @ApiResponses(
+        value = { //
+            @ApiResponse(code = 200, message = "Service updated", response = String.class),
+            @ApiResponse(code = 201, message = "Service created", response = String.class), //
+            @ApiResponse(code = 400, message = "Cannot parse the ServiceRegistrationInfo", response = String.class)})
     @PutMapping("/service")
     public ResponseEntity<String> putService(//
         @RequestBody ServiceRegistrationInfo registrationInfo) {
         try {
+            validateRegistrationInfo(registrationInfo);
+            final boolean isCreate = this.services.get(registrationInfo.serviceName) == null;
             this.services.put(toService(registrationInfo));
-            return new ResponseEntity<>("OK", HttpStatus.OK);
+            return new ResponseEntity<>("OK", isCreate ? HttpStatus.CREATED : HttpStatus.OK);
         } catch (Exception e) {
-            return new ResponseEntity<>(e.getMessage(), HttpStatus.NO_CONTENT);
+            return new ResponseEntity<>(e.getMessage(), HttpStatus.BAD_REQUEST);
         }
     }
 
     @ApiOperation(value = "Delete a service")
-    @ApiResponses(value = {@ApiResponse(code = 200, message = "OK")})
+    @ApiResponses(
+        value = { //
+            @ApiResponse(code = 204, message = "OK"),
+            @ApiResponse(code = 404, message = "Service not found", response = String.class)})
     @DeleteMapping("/services")
     public ResponseEntity<String> deleteService(//
         @RequestParam(name = "name", required = true) String serviceName) {
@@ -113,21 +136,22 @@ public class ServiceController {
             removePolicies(service);
             return new ResponseEntity<>("OK", HttpStatus.NO_CONTENT);
         } catch (Exception e) {
-            return new ResponseEntity<>(e.getMessage(), HttpStatus.NO_CONTENT);
+            return new ResponseEntity<>(e.getMessage(), HttpStatus.NOT_FOUND);
         }
     }
 
-    @ApiOperation(value = "Keep the poilicies alive for a service")
+    @ApiOperation(value = "Heartbeat from a serice")
     @ApiResponses(
-        value = {@ApiResponse(code = 200, message = "Policies timeout supervision refreshed"),
+        value = { //
+            @ApiResponse(code = 200, message = "Service supervision timer refreshed, OK"),
             @ApiResponse(code = 404, message = "The service is not found, needs re-registration")})
     @PostMapping("/services/keepalive")
     public ResponseEntity<String> keepAliveService(//
         @RequestParam(name = "name", required = true) String serviceName) {
         try {
-            services.getService(serviceName).ping();
+            services.getService(serviceName).keepAlive();
             return new ResponseEntity<>("OK", HttpStatus.OK);
-        } catch (Exception e) {
+        } catch (ServiceException e) {
             return new ResponseEntity<>(e.getMessage(), HttpStatus.NOT_FOUND);
         }
     }