iaik.utils

Class ExtByteArrayOutputStream

java.lang.Object

java.io.OutputStream

java.io.ByteArrayOutputStream

iaik.utils.ExtByteArrayOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

public class ExtByteArrayOutputStream
extends java.io.ByteArrayOutputStream

An extended version of the ByteArrayOutputStream. It supports two additional methods:

• getInternalByteArray(), which is the byte array used internally. Note that it will generally be larger than the amount of data written to it, it may not be modified, and that it may become invalid after further write calls.
• getInputStream() that returns a ByteArrayInputStream reading from the data written to this OutputStream.
  The advantage to the standard ByteArrayOutputStream is that the data does not have to be copied, which costs time and temporarily twice the memory usage.

Field Summary

Fields inherited from class java.io.ByteArrayOutputStream

buf, count

Constructor Summary

Constructors

Constructor and Description
ExtByteArrayOutputStream() Creates a new ExtByteArrayOutputStream.
ExtByteArrayOutputStream(int size) Creates a new ExtByreArrayOutputStream for the given buffer size.

Method Summary

Modifier and Type	Method and Description
java.io.ByteArrayInputStream	getInputStream() Gets a ByteArrayInputStream from which to read the data of the internal buffer.
byte[]	getInternalByteArray() Gets the internal byte buffer (without copying the content).

Methods inherited from class java.io.ByteArrayOutputStream

close, reset, size, toByteArray, toString, toString, toString, write, write, writeTo

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtByteArrayOutputStream

public ExtByteArrayOutputStream()

Creates a new ExtByteArrayOutputStream.

ExtByteArrayOutputStream

public ExtByteArrayOutputStream(int size)

Creates a new ExtByreArrayOutputStream for the given buffer size.

Parameters:

size - the size of the internal buffer

Method Detail

getInternalByteArray

public byte[] getInternalByteArray()

Gets the internal byte buffer (without copying the content).

Returns:

the internal byte buffer

getInputStream

public java.io.ByteArrayInputStream getInputStream()

Gets a ByteArrayInputStream from which to read the data of the internal buffer. The data is read from the original internal buffer without copying.

Returns:

an input stream from which to read the data of the internal buffer