if (this.compression != null) {
ub.addQuery(URI_PARAM_COMPRESSION, this.compression);
}
if (this.encryptionKey != null) {
ub.addQuery(URI_PARAM_ENCRYPTION_KEY, this.encryptionKey);
}
if (this.blockCount != null) {
ub.addQuery(URI_PARAM_BLOCK_COUNT, Integer.toString(this.blockCount));
}