Package org.apache.commons.net.io

Class ToNetASCIIInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

org.apache.commons.net.io.ToNetASCIIInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public final class ToNetASCIIInputStream
extends java.io.FilterInputStream

This class wraps an input stream, replacing all singly occurring <LF> (linefeed) characters with <CR><LF> (carriage return followed by linefeed), which is the NETASCII standard for representing a newline. You would use this class to implement ASCII file transfers requiring conversion to NETASCII.

Author:

Daniel F. Savarese

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
ToNetASCIIInputStream(java.io.InputStream input)	Creates a ToNetASCIIInputStream instance that wraps an existing InputStream.

Method Summary

Modifier and Type	Method	Description
int	available()
boolean	markSupported()	Returns false.
int	read()	Reads and returns the next byte in the stream.
int	read(byte[] buffer)	Reads the next number of bytes from the stream into an array and returns the number of bytes read.
int	read(byte[] buffer, int offset, int length)	Reads the next number of bytes from the stream into an array and returns the number of bytes read.

Methods inherited from class java.io.FilterInputStream

close, mark, reset, skip

Methods inherited from class java.io.InputStream

readAllBytes, readNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Detail

ToNetASCIIInputStream

public ToNetASCIIInputStream(java.io.InputStream input)

Creates a ToNetASCIIInputStream instance that wraps an existing InputStream.

Parameters:

input - The InputStream to .

Method Detail

read

public int read()
         throws java.io.IOException

Reads and returns the next byte in the stream. If the end of the message has been reached, returns -1.

Overrides:

read in class java.io.FilterInputStream

Returns:

The next character in the stream. Returns -1 if the end of the stream has been reached.

Throws:

java.io.IOException - If an error occurs while reading the underlying stream.

read

public int read(byte[] buffer)
         throws java.io.IOException

Reads the next number of bytes from the stream into an array and returns the number of bytes read. Returns -1 if the end of the stream has been reached.

Overrides:

read in class java.io.FilterInputStream

Parameters:

buffer - The byte array in which to store the data.

Returns:

The number of bytes read. Returns -1 if the end of the message has been reached.

Throws:

java.io.IOException - If an error occurs in reading the underlying stream.

read

public int read(byte[] buffer,
                int offset,
                int length)
         throws java.io.IOException

Reads the next number of bytes from the stream into an array and returns the number of bytes read. Returns -1 if the end of the message has been reached. The characters are stored in the array starting from the given offset and up to the length specified.

Overrides:

read in class java.io.FilterInputStream

Parameters:

buffer - The byte array in which to store the data.

offset - The offset into the array at which to start storing data.

length - The number of bytes to read.

Returns:

The number of bytes read. Returns -1 if the end of the stream has been reached.

Throws:

java.io.IOException - If an error occurs while reading the underlying stream.

markSupported

public boolean markSupported()

Returns false. Mark is not supported.

Overrides:

markSupported in class java.io.FilterInputStream

available

public int available()
              throws java.io.IOException

Overrides:

available in class java.io.FilterInputStream

Throws:

java.io.IOException