net.openhft.chronicle.wire.Base64LongConverter Maven / Gradle / Ivy
/*
* Copyright 2016-2020 chronicle.software
*
* https://chronicle.software
*
* Licensed 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 net.openhft.chronicle.wire;
/**
* This class represents a converter for an unsigned 64-bit number encoded in base64.
* The encoding scheme utilizes the characters 0-9, A-Z, a-z, as well as period and underscore.
*
* This class extends {@link AbstractLongConverter} and provides specific implementation
* using the defined character set.
*
*
It follows the singleton design pattern. An instance can be obtained via the {@code INSTANCE}
* static field.
*/
public class Base64LongConverter extends AbstractLongConverter {
/**
* A singleton instance of {@link Base64LongConverter}.
*/
public static final Base64LongConverter INSTANCE = new Base64LongConverter();
/**
* A string representing the set of characters to be used in base64 encoding.
*/
private static final String CHARS = ".ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
/**
* Private constructor to enforce the singleton design pattern.
* Initialises the super class with the base64 character set.
*/
private Base64LongConverter() {
super(CHARS);
}
}