aws-lightsail-disk/src/main/java/software/amazon/lightsail/disk/BaseHandlerStd.java [23:91]:
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public abstract class BaseHandlerStd extends BaseHandler<CallbackContext> {

    public final static String InvalidInputException = "InvalidInputException";
    public static final String NotFoundException = "NotFoundException";
    protected final static String InvalidParameterCombination = "InvalidParameterCombination";
    protected static final String InvalidQueryParameter = "InvalidQueryParameter";
    protected final static String InvalidAction = "InvalidAction";
    protected final static String ValidationError = "ValidationError";
    protected static final String MissingParameter = "MissingParameter";

    protected static final String InternalFailure = "InternalFailure";
    protected static final String ServiceUnavailable = "ServiceUnavailable";
    protected static final String OperationFailureException = "OperationFailureException";

    protected static final String ThrottlingException = "ThrottlingException";

    protected final static String NotAuthorized = "NotAuthorized";
    protected static final String OptInRequired = "OptInRequired";
    protected final static String AccessDeniedException = "AccessDeniedException";
    protected static final String UnauthenticatedException = "UnauthenticatedException";

    @Override
    public final ProgressEvent<ResourceModel, CallbackContext> handleRequest(final AmazonWebServicesClientProxy proxy,
            final ResourceHandlerRequest<ResourceModel> request, final CallbackContext callbackContext,
            final Logger logger) {

        return handleRequest(proxy, request, callbackContext != null ? callbackContext : new CallbackContext(),
                proxy.newProxy(ClientBuilder::getClient), logger);
    }

    protected abstract ProgressEvent<ResourceModel, CallbackContext> handleRequest(
            final AmazonWebServicesClientProxy proxy, final ResourceHandlerRequest<ResourceModel> request,
            final CallbackContext callbackContext, final ProxyClient<LightsailClient> proxyClient, final Logger logger);

    /**
     * This method handles the exceptions which are caught in the handlers, returns in progress if those error codes are
     * ignored, or retires with a delay if error codes are retryable, or emits an appropriate error code
     *
     * @param e
     *            exception which was caught
     * @param resourceModel
     *            desired resource model for the request
     * @param callbackContext
     *            callback context for current invocation
     * @param ignoreErrorCodes
     *            error codes which should be ignored, i.e. code which should return in-progress
     * @param logger
     *            logger to log statements
     *
     * @return ProgressEvent<ResourceModel, CallbackContext>
     */
    public static ProgressEvent<ResourceModel, CallbackContext> handleError(final Exception e,
            final ResourceModel resourceModel, final CallbackContext callbackContext,
            final List<String> ignoreErrorCodes, final Logger logger, final String errorLocation) {

        logger.log(String.format("Error during operation: %s, Error message: %s", errorLocation, e.getMessage()));
        logger.log(Arrays.toString(e.getStackTrace()));

        if (e instanceof AwsServiceException) {
            final String errorCode = ((AwsServiceException) e).awsErrorDetails().errorCode();

            if (ignoreErrorCodes.contains(errorCode)) {
                logger.log("This error is expected at this stage. Continuing execution.");
                return ProgressEvent.progress(resourceModel, callbackContext);
            }
            logger.log(String.format("%s", ((AwsServiceException) e).awsErrorDetails()));

            switch (errorCode) {
            case NotFoundException:
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aws-lightsail-loadbalancer/src/main/java/software/amazon/lightsail/loadbalancer/BaseHandlerStd.java [19:87]:
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public abstract class BaseHandlerStd extends BaseHandler<CallbackContext> {

  public final static String InvalidInputException = "InvalidInputException";
  public static final String NotFoundException = "NotFoundException";
  protected final static String InvalidParameterCombination = "InvalidParameterCombination";
  protected static final String InvalidQueryParameter = "InvalidQueryParameter";
  protected final static String InvalidAction = "InvalidAction";
  protected final static String ValidationError = "ValidationError";
  protected static final String MissingParameter = "MissingParameter";

  protected static final String InternalFailure = "InternalFailure";
  protected static final String ServiceUnavailable = "ServiceUnavailable";
  protected static final String OperationFailureException = "OperationFailureException";

  protected static final String ThrottlingException = "ThrottlingException";

  protected final static String NotAuthorized = "NotAuthorized";
  protected static final String OptInRequired = "OptInRequired";
  protected final static String AccessDeniedException = "AccessDeniedException";
  protected static final String UnauthenticatedException = "UnauthenticatedException";

  @Override
  public final ProgressEvent<ResourceModel, CallbackContext> handleRequest(final AmazonWebServicesClientProxy proxy,
                                                                           final ResourceHandlerRequest<ResourceModel> request, final CallbackContext callbackContext,
                                                                           final Logger logger) {

    return handleRequest(proxy, request, callbackContext != null ? callbackContext : new CallbackContext(),
            proxy.newProxy(ClientBuilder::getClient), logger);
  }

  protected abstract ProgressEvent<ResourceModel, CallbackContext> handleRequest(
          final AmazonWebServicesClientProxy proxy, final ResourceHandlerRequest<ResourceModel> request,
          final CallbackContext callbackContext, final ProxyClient<LightsailClient> proxyClient, final Logger logger);

  /**
   * This method handles the exceptions which are caught in the handlers, returns in progress if those error codes are
   * ignored, or retires with a delay if error codes are retryable, or emits an appropriate error code
   *
   * @param e
   *            exception which was caught
   * @param resourceModel
   *            desired resource model for the request
   * @param callbackContext
   *            callback context for current invocation
   * @param ignoreErrorCodes
   *            error codes which should be ignored, i.e. code which should return in-progress
   * @param logger
   *            logger to log statements
   *
   * @return ProgressEvent<ResourceModel, CallbackContext>
   */
  public static ProgressEvent<ResourceModel, CallbackContext> handleError(final Exception e,
                                                                          final ResourceModel resourceModel, final CallbackContext callbackContext,
                                                                          final List<String> ignoreErrorCodes, final Logger logger, final String errorLocation) {

    logger.log(String.format("Error during operation: %s, Error message: %s", errorLocation, e.getMessage()));
    logger.log(Arrays.toString(e.getStackTrace()));

    if (e instanceof AwsServiceException) {
      final String errorCode = ((AwsServiceException) e).awsErrorDetails().errorCode();

      if (ignoreErrorCodes.contains(errorCode)) {
        logger.log("This error is expected at this stage. Continuing execution.");
        return ProgressEvent.progress(resourceModel, callbackContext);
      }
      logger.log(String.format("%s", ((AwsServiceException) e).awsErrorDetails()));

      switch (errorCode) {
        case NotFoundException:
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