org.jgroups.util
Class ExposedByteArrayOutputStream

java.lang.Object
  extended by java.io.OutputStream
      extended by java.io.ByteArrayOutputStream
          extended by org.jgroups.util.ExposedByteArrayOutputStream
All Implemented Interfaces:
java.io.Closeable, java.io.Flushable

public class ExposedByteArrayOutputStream
extends java.io.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
ExposedByteArrayOutputStream()
           
ExposedByteArrayOutputStream(int size)
           
 
Method Summary
 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.
 java.lang.String toString()
          Converts the buffer's contents into a string decoding bytes using the platform's default character set.
 java.lang.String toString(java.lang.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(java.io.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 java.io.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 java.io.ByteArrayOutputStream
Parameters:
b - the data.
off - the start offset in the data.
len - the number of bytes to write.

writeTo

public void writeTo(java.io.OutputStream out)
             throws java.io.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 java.io.ByteArrayOutputStream
Parameters:
out - the output stream to which to write the data.
Throws:
java.io.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 java.io.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 java.io.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 java.io.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 java.lang.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 java.io.ByteArrayOutputStream
Returns:
String decoded from the buffer's contents.
Since:
JDK1.1

toString

public java.lang.String toString(java.lang.String charsetName)
                          throws java.io.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 java.io.ByteArrayOutputStream
Parameters:
charsetName - the name of a supported charset
Returns:
String decoded from the buffer's contents.
Throws:
java.io.UnsupportedEncodingException - If the named charset is not supported
Since:
JDK1.1


Copyright © 1998-2012 Bela Ban / Red Hat. All Rights Reserved.