edu.tum.cs.commons.io
Class SerializationUtils

java.lang.Object
  edu.tum.cs.commons.io.SerializationUtils

public class SerializationUtils
extends Object

Utility methods for serialization.

Version:

$Rev: 29381 $

Author:

hummelb, $Author: deissenb $

Rating:

GREEN Hash: CE4B1240AC4E61F91653F44688B311C5

Constructor Summary

SerializationUtils()

Method Summary

static <T extends Serializable> T	cloneBySerialization(T t, ClassLoader classLoader) Returns a copy of the given object obtained by serialization and deserialization in memory.
static Serializable	deserializeFromByteArray(byte[] bytes) Deserializes an object from byte array using the default class loader used in ObjectInputStream, i.e. if there is a method on the current call stack whose class was loaded via a custom class loader, this class loader is used.
static Serializable	deserializeFromByteArray(byte[] bytes, ClassLoader classLoader) Deserializes an object from byte array using a custom/given class loader.
static int	extractInt(byte[] bytes, int position) Extracts an int value from the given array position (4 bytes in big endian).
static void	insertInt(int i, byte[] bytes, int position) Inserts an int value to the given position in the byte array.
static byte[]	serializeToByteArray(Serializable object) Serializes an object to byte array

Methods inherited from class java.lang.Object

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

Constructor Detail

SerializationUtils

public SerializationUtils()

Method Detail

serializeToByteArray

public static byte[] serializeToByteArray(Serializable object)
                                   throws IOException

Serializes an object to byte array

Throws:

IOException

deserializeFromByteArray

public static Serializable deserializeFromByteArray(byte[] bytes)
                                             throws IOException,
                                                    ClassNotFoundException

Deserializes an object from byte array using the default class loader used in ObjectInputStream, i.e. if there is a method on the current call stack whose class was loaded via a custom class loader, this class loader is used. Otherwise the default class loader is used. Also see the documentation of ObjectInputStreams resolveClass() method.

Throws:

IOException

ClassNotFoundException

deserializeFromByteArray

public static Serializable deserializeFromByteArray(byte[] bytes,
                                                    ClassLoader classLoader)
                                             throws IOException,
                                                    ClassNotFoundException

Deserializes an object from byte array using a custom/given class loader.

Parameters:

classLoader - the class loader used. If this is null, the default behavior of ObjectInputStream is used, i.e. if there is a method on the current call stack whose class was loaded via a custom class loader, this class loader is used. Otherwise the default class loader is used. Also see the documentation of ObjectInputStreams resolveClass() method.

Throws:

IOException

ClassNotFoundException

cloneBySerialization

public static <T extends Serializable> T cloneBySerialization(T t,
                                                              ClassLoader classLoader)

Returns a copy of the given object obtained by serialization and deserialization in memory.

Parameters:

classLoader - the class loader used. If this is null, the default behavior of ObjectInputStream is used, i.e. if there is a method on the current call stack whose class was loaded via a custom class loader, this class loader is used. Otherwise the default class loader is used. Also see the documentation of ObjectInputStreams resolveClass() method.

insertInt

public static void insertInt(int i,
                             byte[] bytes,
                             int position)

Inserts an int value to the given position in the byte array. The storage will require 4 bytes in big endian byte order.

extractInt

public static int extractInt(byte[] bytes,
                             int position)

Extracts an int value from the given array position (4 bytes in big endian). This is the counter part to insertInt(int, byte[], int) .