org.jgroups.util

Class ExposedByteArrayOutputStream

java.lang.Object

java.io.OutputStream

java.io.ByteArrayOutputStream

org.jgroups.util.ExposedByteArrayOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class ExposedByteArrayOutputStream
extends ByteArrayOutputStream

Extends ByteArrayOutputStream, but exposes the internal buffer. This way we don't need to call toByteArray() which copies the internal buffer

Author:

Bela Ban

Field Summary

Fields inherited from class java.io.ByteArrayOutputStream

buf, count

Constructor Summary

Constructors

Constructor and Description
ExposedByteArrayOutputStream()
ExposedByteArrayOutputStream(int size)

Method Summary

Methods

Modifier and Type	Method and Description
Buffer	getBuffer()
int	getCapacity()
byte[]	getRawBuffer()
void	reset() Resets the count field of this byte array output stream to zero, so that all currently accumulated output in the output stream is discarded.
void	reset(int max_size) Resets count and creates a new buf if the current buf is > max_size.
int	size() Returns the current size of the buffer.
byte[]	toByteArray() Creates a newly allocated byte array.
String	toString() Converts the buffer's contents into a string decoding bytes using the platform's default character set.
String	toString(String charsetName) Converts the buffer's contents into a string by decoding the bytes using the specified charsetName.
void	write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this byte array output stream.
void	write(int b)
void	writeTo(OutputStream out) Writes the complete contents of this byte array output stream to the specified output stream argument, as if by calling the output stream's write method using out.write(buf, 0, count).

Methods inherited from class java.io.ByteArrayOutputStream

close, toString

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

ExposedByteArrayOutputStream

public ExposedByteArrayOutputStream()

ExposedByteArrayOutputStream

public ExposedByteArrayOutputStream(int size)

Method Detail

reset

public void reset(int max_size)

Resets count and creates a new buf if the current buf is > max_size. This method is not synchronized

getRawBuffer

public byte[] getRawBuffer()

getBuffer

public Buffer getBuffer()

getCapacity

public int getCapacity()

write

public void write(int b)

Overrides:

write in class ByteArrayOutputStream

write

public void write(byte[] b,
         int off,
         int len)

Writes len bytes from the specified byte array starting at offset off to this byte array output stream.

Overrides:

write in class ByteArrayOutputStream

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

writeTo

public void writeTo(OutputStream out)
             throws IOException

Writes the complete contents of this byte array output stream to the specified output stream argument, as if by calling the output stream's write method using out.write(buf, 0, count).

Overrides:

writeTo in class ByteArrayOutputStream

Parameters:

out - the output stream to which to write the data.

Throws:

IOException - if an I/O error occurs.

reset

public void reset()

Resets the count field of this byte array output stream to zero, so that all currently accumulated output in the output stream is discarded. The output stream can be used again, reusing the already allocated buffer space.

Overrides:

reset in class ByteArrayOutputStream

See Also:

ByteArrayInputStream.count

toByteArray

public byte[] toByteArray()

Creates a newly allocated byte array. Its size is the current size of this output stream and the valid contents of the buffer have been copied into it.

Overrides:

toByteArray in class ByteArrayOutputStream

Returns:

the current contents of this output stream, as a byte array.

See Also:

ByteArrayOutputStream.size()

size

public int size()

Returns the current size of the buffer.

Overrides:

size in class ByteArrayOutputStream

Returns:

the value of the count field, which is the number of valid bytes in this output stream.

See Also:

ByteArrayOutputStream.count

toString

public String toString()

Converts the buffer's contents into a string decoding bytes using the platform's default character set. The length of the new String is a function of the character set, and hence may not be equal to the size of the buffer.

This method always replaces malformed-input and unmappable-character sequences with the default replacement string for the platform's default character set. The CharsetDecoder class should be used when more control over the decoding process is required.

Overrides:

toString in class ByteArrayOutputStream

Returns:

String decoded from the buffer's contents.

Since:

JDK1.1

toString

public String toString(String charsetName)
                throws UnsupportedEncodingException

Converts the buffer's contents into a string by decoding the bytes using the specified charsetName. The length of the new String is a function of the charset, and hence may not be equal to the length of the byte array.

This method always replaces malformed-input and unmappable-character sequences with this charset's default replacement string. The CharsetDecoder class should be used when more control over the decoding process is required.

Overrides:

toString in class ByteArrayOutputStream

Parameters:

charsetName - the name of a supported charset

Returns:

String decoded from the buffer's contents.

Throws:

UnsupportedEncodingException - If the named charset is not supported

Since:

JDK1.1