org.apereo.cas.util

Class CompressionUtils

java.lang.Object

org.apereo.cas.util.CompressionUtils

public class CompressionUtils
extends java.lang.Object

This is CompressionUtils that encapsulates common compression calls and operations in one spot.

Since:

4.1

Constructor Summary

Constructors

Constructor and Description
CompressionUtils()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	compress(java.lang.String srcTxt) Use ZipOutputStream to zip text to byte array, then convert byte array to base64 string, so it can be transferred via http request.
static java.lang.String	decodeByteArrayToString(byte[] bytes) Decode the byte[] in base64 to a string.
static java.lang.String	decompress(java.lang.String zippedBase64Str) First decode base64 String to byte array, then use ZipInputStream to revert the byte array to a string.
static java.lang.String	deflate(byte[] bytes) Deflate the given bytes using zlib.
static java.lang.String	deflate(java.lang.String data) Deflate the given string via a Deflater.
static java.lang.String	inflate(byte[] bytes) Inflate the given byte array by INFLATED_ARRAY_LENGTH.

Methods inherited from class java.lang.Object

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

Constructor Detail

CompressionUtils

public CompressionUtils()

Method Detail

deflate

public static java.lang.String deflate(byte[] bytes)

Deflate the given bytes using zlib.

Parameters:

bytes - the bytes

Returns:

the converted string

deflate

public static java.lang.String deflate(java.lang.String data)

Deflate the given string via a Deflater.

Parameters:

data - the data

Returns:

base64 encoded string

inflate

public static java.lang.String inflate(byte[] bytes)

Inflate the given byte array by INFLATED_ARRAY_LENGTH.

Parameters:

bytes - the bytes

Returns:

the array as a string with UTF-8 encoding

decompress

public static java.lang.String decompress(java.lang.String zippedBase64Str)

First decode base64 String to byte array, then use ZipInputStream to revert the byte array to a string.

Parameters:

zippedBase64Str - the zipped base 64 str

Returns:

the string, or null

compress

public static java.lang.String compress(java.lang.String srcTxt)

Use ZipOutputStream to zip text to byte array, then convert byte array to base64 string, so it can be transferred via http request.

Parameters:

srcTxt - the src txt

Returns:

the string in UTF-8 format and base64'ed, or null.

decodeByteArrayToString

public static java.lang.String decodeByteArrayToString(byte[] bytes)

Decode the byte[] in base64 to a string.

Parameters:

bytes - the data to encode

Returns:

the new string