lac.cnclib.sddl.serialization

Class Serialization

java.lang.Object

lac.cnclib.sddl.serialization.Serialization

public class Serialization
extends java.lang.Object

Class with helper methods utilized by the Gateway. The entire serialization and interoperability mechanism used by ContextNet are centralized in this class. For interoperability communicating with gateways and others nodes we use ProtocolBuffer, for the content we currently use Standard Java Serialization (in the future we will use Kryo).

Author:

Marcos Roriz, Rafael Vasconcelos

Constructor Summary

Constructors

Constructor and Description
Serialization()

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.String	checkSum(byte[] data) Returns the SHA-1 checksum of the byte vector
static java.io.Serializable	fromJavaByteStream(byte[] byteStream) Reconstruct an object from a byte array.
static Message	fromProtocolMessage(byte[] byteStream) Transform a interoperable byte stream into an Application Message.
static byte[]	toJavaByteStream(java.io.Serializable object) Transform an Java object to bytes.
static byte[]	toProtocolMessage(Message message) Transform an Application Message into a ClientLib Interoperability Protocol message.

Methods inherited from class java.lang.Object

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

Constructor Detail

Serialization

public Serialization()

Method Detail

toProtocolMessage

public static byte[] toProtocolMessage(Message message)

Transform an Application Message into a ClientLib Interoperability Protocol message.

Parameters:

message - - application message

Returns:

interoperable message bytestream

fromProtocolMessage

public static Message fromProtocolMessage(byte[] byteStream)

Transform a interoperable byte stream into an Application Message.

Parameters:

byteStream - - ClientLibProtocl interoperable message (bytearray)

Returns:

message

toJavaByteStream

public static byte[] toJavaByteStream(java.io.Serializable object)
                               throws java.io.IOException

Transform an Java object to bytes. Currently we are using standard Java Serialization.

Parameters:

object - The object to be serialized

Returns:

byte[] Byte stream of a Java Serialized object

Throws:

java.io.IOException - if an I/O error has occurred

fromJavaByteStream

public static java.io.Serializable fromJavaByteStream(byte[] byteStream)

Reconstruct an object from a byte array.

Parameters:

byteStream -

Returns:

Serialized object

checkSum

public static java.lang.String checkSum(byte[] data)

Returns the SHA-1 checksum of the byte vector

Parameters:

data - - bye array

Returns:

SHA-1 checksum