org.dd4t.core.util

Class CompressionUtils

java.lang.Object

org.dd4t.core.util.CompressionUtils

public class CompressionUtils
extends Object

Utility class for serializing and deserializing objects using GZip and Base64.

Author:

Rai, Mihai

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	compressGZip(String content) Compresses a given content to a GZipped byte array.
static <T> byte[]	compressGZipGeneric(T object) Compresses a given object to a GZipped byte array.
static byte[]	decodeBase64(String message) Decodes the given string using Base64 algorithm.
static String	decompressGZip(byte[] bytes) Dcompresses a byte array representing a GZip-compressed string back into a String.
static <T> T	decompressGZipGeneric(byte[] bytes) Dcompresses a byte array representing a GZip-compressed object into an object of the given class type.
static String	encodeBase64(byte[] byteArray) Encodes the given byte array to Base64.
static String	encodeBase64(String message) Encodes the given String to Base64.

Methods inherited from class java.lang.Object

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

Method Detail

compressGZipGeneric

public static <T> byte[] compressGZipGeneric(T object)
                                  throws SerializationException

Compresses a given object to a GZipped byte array.

Parameters:

object - the object to encode

Returns:

byte[] representing the compressed object bytes

Throws:

SerializationException - if something goes wrong with the streams

compressGZip

public static byte[] compressGZip(String content)
                           throws SerializationException

Compresses a given content to a GZipped byte array.

Parameters:

content - the content to encode

Returns:

byte[] representing the compressed content bytes

Throws:

SerializationException - if something goes wrong with the streams

decompressGZipGeneric

public static <T> T decompressGZipGeneric(byte[] bytes)
                               throws SerializationException

Dcompresses a byte array representing a GZip-compressed object into an object of the given class type.

Type Parameters:

T - the class type to deserialize the byte array into

Parameters:

bytes - the byte array to decompress

Returns:

the deserialized object of the given class type

Throws:

SerializationException - if something goes wrong with the streams

decompressGZip

public static String decompressGZip(byte[] bytes)
                             throws SerializationException

Dcompresses a byte array representing a GZip-compressed string back into a String.

Parameters:

bytes - the byte array to decompress

Returns:

the deserialized object of the given class type

Throws:

SerializationException - if something goes wrong with the streams

encodeBase64

public static String encodeBase64(byte[] byteArray)

Encodes the given byte array to Base64.

Parameters:

byteArray - the byte array to encode

Returns:

String representing the encoded array

encodeBase64

public static String encodeBase64(String message)

Encodes the given String to Base64.

Parameters:

message - the byte array to encode

Returns:

String representing the encoded array

decodeBase64

public static byte[] decodeBase64(String message)

Decodes the given string using Base64 algorithm.

Parameters:

message - String representing the message to decode

Returns:

byte[] representing the decoded array