com.ontimize.util.remote
Class BytesBlock

java.lang.Object
  com.ontimize.util.remote.BytesBlock

All Implemented Interfaces:

java.io.Serializable

public class BytesBlock

extends java.lang.Object

implements java.io.Serializable

Generic class that represents a Byte array implementing custom Serializable techniques. Moreover, some types of compression are allowed in these processes.

Author:

Imatia Innovation

See Also:

Serialized Form

Field Summary

static int	BEST_COMPRESSION
static int	BEST_SPEED
static int	DEFAULT_COMPRESSION
static int	HUFFMAN_ONLY
static int	NO_COMPRESSION
long	serializationFinalTime
long	serializationStartTime

Constructor Summary

BytesBlock(byte[] byteArray)
Builds a BytesBlock with parameter byteArray.

BytesBlock(byte[] byteArray, int compressionLevel)
Builds a BytesBlock from an Byte Array.

Method Summary

protected byte[]	compressionBytes(byte[] bytesToCompress, int compressionLevel)
protected byte[]	decompressionBytes(byte[] bytesToDecompress)
boolean	equals(java.lang.Object object) If byte array is equals in both compared objects returns true.
byte[]	getBytes()

Methods inherited from class java.lang.Object

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

Field Detail

NO_COMPRESSION

public static final int NO_COMPRESSION

See Also:

Constant Field Values

BEST_COMPRESSION

public static final int BEST_COMPRESSION

See Also:

Constant Field Values

BEST_SPEED

public static final int BEST_SPEED

See Also:

Constant Field Values

DEFAULT_COMPRESSION

public static final int DEFAULT_COMPRESSION

See Also:

Constant Field Values

HUFFMAN_ONLY

public static final int HUFFMAN_ONLY

See Also:

Constant Field Values

serializationStartTime

public long serializationStartTime

serializationFinalTime

public long serializationFinalTime

Constructor Detail

BytesBlock

public BytesBlock(byte[] byteArray)

Builds a BytesBlock with parameter byteArray. Serialization will be executed with default method (with compression). Moreover, object will determine itself if byteArray compression is justified.

Parameters:

byteArray - the byte array

BytesBlock

public BytesBlock(byte[] byteArray,
                  int compressionLevel)

Builds a BytesBlock from an Byte Array. Serialization will be executed with default method and without compression (NO_COMPRESSION). If in parameter compressionLevel is passed NO_COMPRESSION, this constructor will be equivalent to BytesBlock(byte[]).

When an object is serialized to disk, NO_COMPRESSION is about twenty times better in performance than Compression. However, when serialization is executed over RMI, generally results are inverted.

Parameters:

byteArray - the byte array

compressionLevel - Indicates the level of compression is defined in this class according to Deflater

Method Detail

getBytes

public byte[] getBytes()

compressionBytes

protected byte[] compressionBytes(byte[] bytesToCompress,
                                  int compressionLevel)

decompressionBytes

protected byte[] decompressionBytes(byte[] bytesToDecompress)

equals

public boolean equals(java.lang.Object object)

If byte array is equals in both compared objects returns true. Otherwise, false.

Parameters:

object - Object to compare