src/main/java/com/microfocus/application/automation/tools/sse/sdk/Base64Encoder.java
/*
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* This software was acquired by Micro Focus on September 1, 2017, and is now offered by OpenText.
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* __________________________________________________________________
* MIT License
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* Copyright 2012-2024 Open Text
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* its affiliates and licensors ("Open Text") are as may be set forth
* in the express warranty statements accompanying such products and services.
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* omissions contained herein. The information contained herein is subject
* to change without notice.
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* Except as specifically indicated otherwise, this document contains
* confidential information and a valid license is required for possession,
* use or copying. If this work is provided to the U.S. Government,
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* Computer Software Documentation, and Technical Data for Commercial Items are
* licensed to the U.S. Government under vendor's standard commercial license.
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package com.microfocus.application.automation.tools.sse.sdk;
/***
*
* @author Effi Bar-She'an
* @author Dani Schreiber
*
*/
public class Base64Encoder {
private final static char[] ALPHABET =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".toCharArray();
private static int[] _toInt = new int[128];
static {
for (int i = 0; i < ALPHABET.length; i++) {
_toInt[ALPHABET[i]] = i;
}
}
/**
* Translates the specified byte array into Base64 string.
*
* @param buf
* the byte array (not null)
* @return the translated Base64 string (not null)
*/
public static String encode(byte[] buf) {
int size = buf.length;
char[] ar = new char[((size + 2) / 3) * 4];
int a = 0;
int i = 0;
while (i < size) {
byte b0 = buf[i++];
byte b1 = (i < size) ? buf[i++] : 0;
byte b2 = (i < size) ? buf[i++] : 0;
int mask = 0x3F;
ar[a++] = ALPHABET[(b0 >> 2) & mask];
ar[a++] = ALPHABET[((b0 << 4) | ((b1 & 0xFF) >> 4)) & mask];
ar[a++] = ALPHABET[((b1 << 2) | ((b2 & 0xFF) >> 6)) & mask];
ar[a++] = ALPHABET[b2 & mask];
}
switch (size % 3) {
case 1:
ar[--a] = '=';
case 2:
ar[--a] = '=';
break;
}
return new String(ar);
}
}