ec.util

Class DataPipe

java.lang.Object

ec.util.DataPipe

public class DataPipe
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
(package private) byte[]	buffer
DataInputStream	input The input stream
DataOutputStream	output The output stream
(package private) int	pull
(package private) int	size

Constructor Summary

Constructors

Constructor and Description
DataPipe()

Method Summary

Methods

Modifier and Type	Method and Description
static Object	copy(Serializable obj) A poor-man's clone for serializable but not cloneable objects: serializes an object to the pipe, then deserializes it.
int	numRead() Returns the number of elements read from the buffer so far (after the last reset()).
int	numWritten() Returns the number of elements written to the buffer so far (after the last reset()).
(package private) int	pull()
(package private) int	pull(byte[] b, int offset, int length)
(package private) void	push(byte b)
(package private) void	push(byte[] b, int offset, int length)
void	reset() Reset the buffer.
(package private) void	resize()
int	size() Returns the total size of the buffer.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

buffer

byte[] buffer

size

int size

pull

int pull

input

public DataInputStream input

The input stream

output

public DataOutputStream output

The output stream

Constructor Detail

DataPipe

public DataPipe()

Method Detail

resize

void resize()

push

void push(byte b)

push

void push(byte[] b,
        int offset,
        int length)

pull

int pull()

pull

int pull(byte[] b,
       int offset,
       int length)

reset

public void reset()

Reset the buffer. Does not resize it back to a smaller size -- if it has ballooned it will stay large, though it will no longer have wasted space in it. If you wish to make the buffer a more manageable size, create a new DataPipe instead.

size

public int size()

Returns the total size of the buffer.

numWritten

public int numWritten()

Returns the number of elements written to the buffer so far (after the last reset()).

numRead

public int numRead()

Returns the number of elements read from the buffer so far (after the last reset()).

copy

public static Object copy(Serializable obj)
                   throws IOException,
                          ClassNotFoundException

A poor-man's clone for serializable but not cloneable objects: serializes an object to the pipe, then deserializes it.

Throws:

IOException

ClassNotFoundException

toString

public String toString()

Overrides:

toString in class Object