static BlobContainerStrategy get(String enumVal) {
      return BlobContainerStrategy.valueOf(enumVal.toUpperCase());
    }
@return {@link BlobContainerStrategy} using case-insensitive string match.
@param enumVal the enum string value.
@throws IllegalArgumentException for invalid enumVal.
ambry-cloud/src/main/java/com/github/ambry/cloud/azure/AzureBlobLayoutStrategy.java