com.ziesemer.utils.codec.io

Class CharDecoderInputStream

java.lang.Object

java.io.InputStream

com.ziesemer.utils.codec.io.CharDecoderInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class CharDecoderInputStream
extends InputStream

Reads raw bytes from encoded characters. Counter-part to CharEncoderReader. This is a pull-interface; CharDecoderWriter is the equivalent push-interface.

Can be adapted to read characters to the consumer (instead of raw bytes) by wrapping in a InputStreamReader. This is only valid if the decoded form of the data is known to only contain valid characters. Can also be adapted to read bytes from a provider (instead of characters) by using a InputStreamReader as the Reader.

Author:

Mark A. Ziesemer <www.ziesemer.com>

Field Summary

Fields

Modifier and Type	Field and Description
protected ICharToByteDecoder	decoder
protected CharBuffer	readBuffer
protected Reader	reader
protected CodingStates	state
protected ByteBuffer	writeBuffer

Constructor Summary

Constructors

Constructor and Description
CharDecoderInputStream(ICharToByteDecoder decoder, Reader reader)
CharDecoderInputStream(ICharToByteDecoder decoder, Reader reader, int readBufferSize)

Method Summary

Modifier and Type	Method and Description
void	close()
protected boolean	fillBuffer()
int	read()
int	read(byte[] b, int off, int len)

Methods inherited from class java.io.InputStream

available, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

decoder

protected ICharToByteDecoder decoder

reader

protected Reader reader

readBuffer

protected CharBuffer readBuffer

writeBuffer

protected ByteBuffer writeBuffer

state

protected CodingStates state

Constructor Detail

CharDecoderInputStream

public CharDecoderInputStream(ICharToByteDecoder decoder,
                              Reader reader)

CharDecoderInputStream

public CharDecoderInputStream(ICharToByteDecoder decoder,
                              Reader reader,
                              int readBufferSize)

Method Detail

fillBuffer

protected boolean fillBuffer()
                      throws IOException

Throws:

IOException

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class InputStream

Throws:

IOException