Improved validation of parameters for putPolicy in the NBI

Change-Id: I6aab3b8415986c48a111304df153b4c44586fcbf
Issue-ID: CCSDK-2502
Signed-off-by: PatrikBuhr <patrik.buhr@est.tech>
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java
index c18ec81..13568db 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java
@@ -190,6 +190,9 @@
     })
     public Mono<ResponseEntity<Object>> putPolicy(@RequestBody PolicyInfo policyInfo) {
 
+        if (!policyInfo.validate()) {
+            return ErrorResponse.createMono("Missing required parameter in body", HttpStatus.BAD_REQUEST);
+        }
         String jsonString = gson.toJson(policyInfo.policyData);
         Ric ric = rics.get(policyInfo.ricId);
         PolicyType type = policyTypes.get(policyInfo.policyTypeId);
@@ -286,7 +289,7 @@
             @ApiResponse(code = 200, message = "Policies", response = PolicyInfoList.class),
             @ApiResponse(code = 404, message = "Near-RT RIC, policy type or service not found",
                     response = ErrorResponse.ErrorInfo.class)})
-    public ResponseEntity<Object> getPolicies( //
+    public ResponseEntity<Object> getPolicyInstances( //
             @ApiParam(name = Consts.POLICY_TYPE_ID_PARAM, required = false,
                     value = "The identity of the policy type to get policies for.") //
             @RequestParam(name = Consts.POLICY_TYPE_ID_PARAM, required = false) String type, //
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyInfo.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyInfo.java
index 0ec2165..594cf78 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyInfo.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyInfo.java
@@ -65,7 +65,7 @@
     @ApiModelProperty(value = "Callback URI for policy status updates", required = false)
     @JsonProperty(value = "status_notification_uri", required = false)
     @SerializedName("status_notification_uri")
-    public String statusNotificationUri;
+    public String statusNotificationUri = "";
 
     PolicyInfo() {}