public String getBucketName() {
        return this.bucketName;
    }
Converts the current endpoint set for this client into virtual addressing style, by placing
the name of the specified bucket before the S3 service endpoint.

@param bucketName The name of the bucket to use in the virtual addressing style of the returned URI.
@return A new URI, creating from the current service endpoint URI and the specified bucket.
aws-java-sdk-s3/src/main/java/com/amazonaws/services/s3/internal/S3RequestEndpointResolver.java