| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.nifi.processors.pgp.io; |
| |
| import java.math.BigInteger; |
| |
| /** |
| * Key Identifier Converter from number to hexadecimal string |
| */ |
| public class KeyIdentifierConverter { |
| private static final int HEXADECIMAL_RADIX = 16; |
| |
| /** |
| * Format numeric key identifier as uppercase hexadecimal string |
| * |
| * @param keyId Key Identifier |
| * @return Uppercase hexadecimal string |
| */ |
| public static String format(final long keyId) { |
| return Long.toHexString(keyId).toUpperCase(); |
| } |
| |
| /** |
| * Parse hexadecimal key identifier to numeric key identifier |
| * |
| * @param keyId Hexadecimal string |
| * @return Key Identifier |
| */ |
| public static long parse(final String keyId) { |
| final BigInteger parsed = new BigInteger(keyId, HEXADECIMAL_RADIX); |
| return parsed.longValue(); |
| } |
| } |