/*
* original output is full and doesn't have remaining. allocate more space
* to new CharBuffer and return it, the contents in the given buffer will be
* copied into the new buffer.
*/
private java.nio.CharBuffer allocateMore(java.nio.CharBuffer output)
{
if (output.capacity() == 0)
{
return(java.nio.CharBuffer.allocate(1));
}
java.nio.CharBuffer result = java.nio.CharBuffer.allocate(output.capacity() * 2);
output.flip();
result.put(output);
return(result);
}
/*
* This is a facade method for the decoding operation.
* <p>
* This method decodes the remaining byte sequence of the given byte buffer
* into a new character buffer. This method performs a complete decoding
* operation, resets at first, then decodes, and flushes at last.
* <p>
* This method should not be invoked while another {@code decode} operation
* is ongoing.
*
* @param in
* the input buffer.
* @return a new <code>CharBuffer</code> containing the the characters
* produced by this decoding operation. The buffer's limit will be
* the position of the last character in the buffer, and the
* position will be zero.
* @throws IllegalStateException
* if another decoding operation is ongoing.
* @throws MalformedInputException
* if an illegal input byte sequence for this charset was
* encountered, and the action for malformed error is
* {@link CodingErrorAction#REPORT CodingErrorAction.REPORT}
* @throws UnmappableCharacterException
* if a legal but unmappable input byte sequence for this
* charset was encountered, and the action for unmappable
* character error is
* {@link CodingErrorAction#REPORT CodingErrorAction.REPORT}.
* Unmappable means the byte sequence at the input buffer's
* current position cannot be mapped to a Unicode character
* sequence.
* @throws CharacterCodingException
* if another exception happened during the decode operation.
*/
public java.nio.CharBuffer decode(java.nio.ByteBuffer inJ) //throws CharacterCodingException
{
reset();
int length = (int)(inJ.remaining() * averChars);
java.nio.CharBuffer output = java.nio.CharBuffer.allocate(length);
CoderResult result = null;
while (true)
{
result = decode(inJ, output, false);
checkCoderResult(result);
if (result.isUnderflow())
{
break;
}
else if (result.isOverflow())
{
output = allocateMore(output);
}
}
result = decode(inJ, output, true);
checkCoderResult(result);
while (true)
{
result = flush(output);
checkCoderResult(result);
if (result.isOverflow())
{
output = allocateMore(output);
}
else
{
break;
}
}
output.flip();
status = FLUSH;
return(output);
}