code: public Observable<ServerConnectionPolicyInner> createOrUpdateAsync(String resourceGroupName, String serverName, ServerConnectionType connectionType) {
          return createOrUpdateWithServiceResponseAsync(resourceGroupName, serverName, connectionType).map(new Func1<ServiceResponse<ServerConnectionPolicyInner>, ServerConnectionPolicyInner>() {
              @Override
              public ServerConnectionPolicyInner call(ServiceResponse<ServerConnectionPolicyInner> response) {
                  return response.body();
              }
          });
      }
docs: Creates or updates the server's connection policy.
  
  @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value from the Azure Resource Manager API or the portal.
  @param serverName The name of the server.
  @param connectionType The server connection type. Possible values include: 'Default', 'Proxy', 'Redirect'
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the ServerConnectionPolicyInner object