How to use

isDNSBucketName

method

in

com.amazonaws.services.s3.internal.BucketNameUtils

private boolean shouldUseVirtualAddressing(final URI endpoint) {
  return !isPathStyleAccess && BucketNameUtils.isDNSBucketName(bucketName)
      && !isValidIpV4Address(endpoint.getHost());
}

private boolean canUseVirtualAddressing() {
  return BucketNameUtils.isDNSBucketName(endpointResolver.getBucketName());
}

private static String convertRegionToString(Region region, String bucketName) {
  String regionAsString;
  if (region == null) {
    if (BucketNameUtils.isDNSBucketName(bucketName)) {
      regionAsString = Region.US_Standard.getFirstRegionId();
    } else {
      throw new IllegalArgumentException("Region must be specified for bucket that cannot be addressed using virtual host style");
    }
  } else {
    regionAsString = region.getFirstRegionId();
  }
  return regionAsString;
}

private boolean shouldUseVirtualAddressing(final URI endpoint, final String bucketName) {
  return !clientOptions.isPathStyleAccess() && BucketNameUtils.isDNSBucketName(bucketName)
      && !isValidIpV4Address(endpoint.getHost());
}

/**
 * Constructs a new {@link ID} with all the required parameters.
 *
 * @param bucket The name of the bucket containing the desired object.
 * @param key The key in the specified bucket under which the object is
 *            stored.
 */
ID(Region region, String bucket, String key) {
  if (region == null) {
    if (BucketNameUtils.isDNSBucketName(bucket)) {
      this.regionId = Region.US_Standard.getFirstRegionId();
    } else {
      throw new IllegalArgumentException(
          "Region must be specified for bucket that cannot be addressed using virtual host style");
    }
  } else {
    this.regionId = region.getFirstRegionId();
  }
  this.bucket = bucket;
  this.key = key;
}

private boolean shouldUseVirtualAddressing(final URI endpoint) {
  return !isPathStyleAccess && BucketNameUtils.isDNSBucketName(bucketName)
      && !isValidIpV4Address(endpoint.getHost());
}

private boolean canUseVirtualAddressing() {
  return BucketNameUtils.isDNSBucketName(endpointResolver.getBucketName());
}

private static String convertRegionToString(Region region, String bucketName) {
  String regionAsString;
  if (region == null) {
    if (BucketNameUtils.isDNSBucketName(bucketName)) {
      regionAsString = Region.US_Standard.getFirstRegionId();
    } else {
      throw new IllegalArgumentException("Region must be specified for bucket that cannot be addressed using virtual host style");
    }
  } else {
    regionAsString = region.getFirstRegionId();
  }
  return regionAsString;
}

private boolean shouldUseVirtualAddressing(final URI endpoint, final String bucketName) {
  return !clientOptions.isPathStyleAccess() && BucketNameUtils.isDNSBucketName(bucketName)
      && !isValidIpV4Address(endpoint.getHost());
}