org.conqat.lib.commons.io

Class SerializationUtils

java.lang.Object

org.conqat.lib.commons.io.SerializationUtils

public class SerializationUtils
extends java.lang.Object

Utility methods for serialization.

Author:

hummelb

Constructor Summary

Constructors

Constructor and Description
SerializationUtils()

Method Summary

Modifier and Type	Method and Description
static <T extends java.io.Serializable> T	cloneBySerialization(T t, java.lang.ClassLoader classLoader) Returns a copy of the given object obtained by serialization and deserialization in memory.
static java.io.Serializable	deserializeFromByteArray(byte[] bytes, java.lang.ClassLoader classLoader) Make use of StorageUtils#deserialize(byte[]) whenever possible.
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(java.io.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(java.io.Serializable object)
                                   throws java.io.IOException

Serializes an object to byte array

Throws:

java.io.IOException

deserializeFromByteArray

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

Make use of StorageUtils#deserialize(byte[]) whenever possible. Only use this method as last resort.

Deserializes an object from byte array using a custom/given class loader. Important:The caller has to ensure that the supplied class loader "knows" all classes to be deserialized. Returns null if a null value is passed.

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:

java.io.IOException

java.lang.ClassNotFoundException

cloneBySerialization

public static <T extends java.io.Serializable> T cloneBySerialization(T t,
                                                                      java.lang.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) .