com.groupdocs.watermark.internal

Class Base64Encoding

java.lang.Object

com.groupdocs.watermark.internal.Base64Encoding

public final class Base64Encoding
extends Object

Constructor Summary

Constructors

Constructor and Description
Base64Encoding()

Method Summary

Modifier and Type	Method and Description
static byte[]	decode(String str) Decodes a BASE64 encoded String.
static char[]	encodeToChar(byte[] sArr, int offset, int length, boolean lineSep) Encodes a raw byte array into a BASE64 char[] representation i accordance with RFC 2045.
static String	encodeToString(byte[] sArr, boolean lineSep) Encodes a raw byte array into a BASE64 String representation i accordance with RFC 2045.
static String	encodeToString(byte[] sArr, int offset, int length, boolean lineSep)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Base64Encoding

public Base64Encoding()

Method Detail

decode

public static final byte[] decode(String str)

Decodes a BASE64 encoded String. All illegal characters will be ignored and can handle both strings with and without line separators.
Note! It can be up to about 2x the speed to call decode(str.toCharArray()) instead. That will create a temporary array though. This version will use str.charAt(i) to iterate the string.

Parameters:

str - The source string. null or length 0 will return an empty array.

Returns:

The decoded array of bytes. May be of length 0. Will be null if the legal characters (including '=') isn't divideable by 4. (I.e. definitely corrupted).

encodeToChar

public static final char[] encodeToChar(byte[] sArr,
                                        int offset,
                                        int length,
                                        boolean lineSep)

Encodes a raw byte array into a BASE64 char[] representation i accordance with RFC 2045.

Parameters:

sArr - The bytes to convert. If null or length 0 an empty array will be returned.

lineSep - Optional "\r\n" after 76 characters, unless end of file.
No line separator will be in breach of RFC 2045 which specifies max 76 per line but will be a little faster.

Returns:

A BASE64 encoded array. Never null.

encodeToString

public static final String encodeToString(byte[] sArr,
                                          boolean lineSep)

Encodes a raw byte array into a BASE64 String representation i accordance with RFC 2045.

Parameters:

sArr - The bytes to convert. If null or length 0 an empty array will be returned.

lineSep - Optional "\r\n" after 76 characters, unless end of file.
No line separator will be in breach of RFC 2045 which specifies max 76 per line but will be a little faster.

Returns:

A BASE64 encoded array. Never null.

encodeToString

public static final String encodeToString(byte[] sArr,
                                          int offset,
                                          int length,
                                          boolean lineSep)