Package org.HdrHistogram
Class Base64Helper
- java.lang.Object
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- org.HdrHistogram.Base64Helper
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public class Base64Helper extends java.lang.Object
Base64Helper exists to bridge inconsistencies in Java SE support of Base64 encoding and decoding. Earlier Java SE platforms (up to and including Java SE 8) supported base64 encode/decode via the javax.xml.bind.DatatypeConverter class, which was deprecated and eventually removed in Java SE 9. Later Java SE platforms (Java SE 8 and later) support base64 encode/decode via the java.util.Base64 class (first introduced in Java SE 8, and not available on e.g. Java SE 6 or 7). This makes it "hard" to write a single piece of source code that deals with base64 encodings and will compile and run on e.g. Java SE 7 AND Java SE 9. And such common source is a common need for libraries. This class is intended to encapsulate this "hard"-ness and hide the ugly pretzle-twising needed under the covers. Base64Helper provides a common API that works across Java SE 6..9 (and beyond hopefully), and uses late binding (Reflection) internally to avoid javac-compile-time dependencies on a specific Java SE version (e.g. beyond 7 or before 9).
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Field Summary
Fields Modifier and Type Field Description private static java.lang.reflect.Method
decodeMethod
private static java.lang.Object
decoderObj
private static java.lang.reflect.Method
encodeMethod
private static java.lang.Object
encoderObj
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Constructor Summary
Constructors Constructor Description Base64Helper()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description (package private) static byte[]
parseBase64Binary(java.lang.String base64input)
Converts a Base64 encoded String to a byte array(package private) static java.lang.String
printBase64Binary(byte[] binaryArray)
Converts an array of bytes into a Base64 string.
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Method Detail
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printBase64Binary
static java.lang.String printBase64Binary(byte[] binaryArray)
Converts an array of bytes into a Base64 string.- Parameters:
binaryArray
- A binary encoded input array- Returns:
- a String containing the Base64 encoded equivalent of the binary input
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parseBase64Binary
static byte[] parseBase64Binary(java.lang.String base64input)
Converts a Base64 encoded String to a byte array- Parameters:
base64input
- A base64-encoded input String- Returns:
- a byte array containing the binary representation equivalent of the Base64 encoded input
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