org.apache.axiom.attachments.utils

Class BAAOutputStream

java.lang.Object

java.io.OutputStream

org.apache.axiom.attachments.utils.BAAOutputStream

All Implemented Interfaces:

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

public class BAAOutputStream
extends java.io.OutputStream
implements ReadFromSupport

BAAOutputStream is like a ByteArrayOutputStream. A ByteArrayOutputStream stores the backing data in a byte[]. BAAOutputStream stores the backing data in a Array of byte[]. Using several non-contiguous chunks reduces memory copy and resizing.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static int	BUFFER_SIZE
(package private) byte[]	currBuffer
(package private) java.util.ArrayList	data
(package private) int	index
(package private) byte[]	writeByte

Constructor Summary

Constructors

Constructor and Description
BAAOutputStream()

Method Summary

Modifier and Type	Method and Description
private void	addBuffer()
java.util.ArrayList	buffers()
int	length()
long	readFrom(java.io.InputStream is, long maxRead) Read data from the given input stream and write it to this output stream.
long	receive(java.io.InputStream is, long maxRead)
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.io.OutputStream

close, flush

Methods inherited from class java.lang.Object

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

Field Detail

data

java.util.ArrayList data

BUFFER_SIZE

static final int BUFFER_SIZE

See Also:

Constant Field Values

index

int index

currBuffer

byte[] currBuffer

writeByte

byte[] writeByte

Constructor Detail

BAAOutputStream

public BAAOutputStream()

Method Detail

addBuffer

private void addBuffer()

write

public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException

Overrides:

write in class java.io.OutputStream

Throws:

java.io.IOException

write

public void write(byte[] b)
           throws java.io.IOException

Overrides:

write in class java.io.OutputStream

Throws:

java.io.IOException

write

public void write(int b)
           throws java.io.IOException

Specified by:

write in class java.io.OutputStream

Throws:

java.io.IOException

buffers

public java.util.ArrayList buffers()

length

public int length()

receive

public long receive(java.io.InputStream is,
                    long maxRead)
             throws java.io.IOException

Parameters:

is - InputStream containing data

maxRead - the maximum number of bytes to receive

Returns:

bytesReceived

Throws:

java.io.IOException

readFrom

public long readFrom(java.io.InputStream is,
                     long maxRead)
              throws StreamCopyException

Description copied from interface: ReadFromSupport

Read data from the given input stream and write it to this output stream. The method transfers data until one of the following conditions is met:

• The end of the input stream is reached.
• The value of the length argument is different from -1 and the number of bytes transferred is equal to length.

Specified by:

readFrom in interface ReadFromSupport

Parameters:

is - An input stream to read data from. This method will not close the stream.

maxRead - the number of bytes to transfer, or -1 if the method should transfer data until the end of the input stream is reached

Returns:

the number of bytes transferred

Throws:

StreamCopyException