Rollback of changes with errors during the VM assign (#7061)

Co-authored-by: Stephan Krug <[email protected]>
Co-authored-by: Gabriel <[email protected]>
Co-authored-by: Fabricio Duarte <[email protected]>

Author: 4 people

api/src/main/java/com/cloud/vm/UserVmService.java

@@ -469,7 +469,7 @@ VirtualMachine migrateVirtualMachine(Long vmId, Host destinationHost) throws Res
     VirtualMachine migrateVirtualMachineWithVolume(Long vmId, Host destinationHost, Map<String, String> volumeToPool) throws ResourceUnavailableException,
         ConcurrentOperationException, ManagementServerException, VirtualMachineMigrationException;
 
-    UserVm moveVMToUser(AssignVMCmd moveUserVMCmd) throws ResourceAllocationException, ConcurrentOperationException, ResourceUnavailableException,
+    UserVm moveVmToUser(AssignVMCmd moveUserVMCmd) throws ResourceAllocationException, ConcurrentOperationException, ResourceUnavailableException,
         InsufficientCapacityException;
 
     VirtualMachine vmStorageMigration(Long vmId, StoragePool destPool);

api/src/main/java/org/apache/cloudstack/api/command/admin/vm/AssignVMCmd.java

@@ -120,27 +120,16 @@ public List<Long> getSecurityGroupIdList() {
     @Override
     public void execute() {
         try {
-            UserVm userVm = _userVmService.moveVMToUser(this);
-            if (userVm == null) {
-                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to move vm");
-            }
+            UserVm userVm = _userVmService.moveVmToUser(this);
             UserVmResponse response = _responseGenerator.createUserVmResponse(ResponseView.Full, "virtualmachine", userVm).get(0);
             response.setResponseName(getCommandName());
             setResponseObject(response);
-        } catch (InvalidParameterValueException e){
-            e.printStackTrace();
-            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, e.getMessage());
         } catch (Exception e) {
-            logger.error("Failed to move vm due to: " + e.getStackTrace());
-            if (e.getMessage() != null) {
-                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to move vm due to " + e.getMessage());
-            } else if (e.getCause() != null) {
-                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to move vm due to " + e.getCause());
-            } else {
-                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to move vm");
-            }
+            ApiErrorCode errorCode = e instanceof InvalidParameterValueException ? ApiErrorCode.PARAM_ERROR : ApiErrorCode.INTERNAL_ERROR;
+            String msg = String.format("Failed to move VM [%s].", getVmId());
+            logger.error(msg, e);
+            throw new ServerApiException(errorCode, msg);
         }
-
     }
 
     @Override