protected ProgressEvent handleRequest()

in aws-ec2-enclavecertificateiamroleassociation/src/main/java/software/amazon/ec2/enclavecertificateiamroleassociation/CreateHandler.java [17:70]
49 lines of code
3 McCabe index (conditional complexity)

    protected ProgressEvent<ResourceModel, CallbackContext> handleRequest(AmazonWebServicesClientProxy proxy,
                                                                          ResourceHandlerRequest<ResourceModel> request,
                                                                          CallbackContext callbackContext,
                                                                          ProxyClient<Ec2Client> proxyClient,
                                                                          Logger logger) {
        final ResourceModel model = request.getDesiredResourceState();

        try {
            validateNotNull(model.getCertificateArn(), Properties.CertificateArn);
            validateNotNull(model.getRoleArn(), Properties.RoleArn);

            if (Helper.getAssociatedRole(proxyClient, model.getCertificateArn(),
                    model.getRoleArn()) != null) {
                    return ProgressEvent.<ResourceModel, CallbackContext>builder()
                            .resourceModel(model)
                            .message(String.format("Association already exists for " +
                                            "certificate arn %s and" +
                                            " role arn %s",
                                    model.getCertificateArn(), model.getRoleArn()))
                            .status(OperationStatus.FAILED)
                            .errorCode(HandlerErrorCode.AlreadyExists)
                            .build();
            }

            final AssociateEnclaveCertificateIamRoleRequest associateEnclaveCertificateIamRoleRequest =
                    AssociateEnclaveCertificateIamRoleRequest
                            .builder()
                            .certificateArn(model.getCertificateArn())
                            .roleArn(model.getRoleArn())
                            .build();
            final AssociateEnclaveCertificateIamRoleResponse response =
                    proxyClient.injectCredentialsAndInvokeV2(associateEnclaveCertificateIamRoleRequest,
                            proxyClient.client()::associateEnclaveCertificateIamRole);
            model.setCertificateS3BucketName(response.certificateS3BucketName());
            model.setCertificateS3ObjectKey(response.certificateS3ObjectKey());
            model.setEncryptionKmsKeyId(response.encryptionKmsKeyId());

            logger.log(String.format("%s %s created successfully with " +
                        "CertificateS3BucketName %s, CertificateS3ObjectKey %s, " +
                        "EncryptionKmsKeyId %s",
                    ResourceModel.TYPE_NAME,
                    model.getPrimaryIdentifier(),
                    model.getCertificateS3BucketName(),
                    model.getCertificateS3ObjectKey(),
                    model.getEncryptionKmsKeyId()));

            return ProgressEvent.<ResourceModel, CallbackContext>builder()
                    .resourceModel(model)
                    .status(OperationStatus.SUCCESS)
                    .build();
        } catch (final Throwable e) {
            return handleException(e, logger);
        }
    }