com.fr.ftp.io

类 ToNetASCIIInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

com.fr.ftp.io.ToNetASCIIInputStream

所有已实现的接口:

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.

字段概要

从类继承的字段 java.io.FilterInputStream

in

构造器概要

构造器

构造器和说明
ToNetASCIIInputStream(java.io.InputStream input) Creates a ToNetASCIIInputStream instance that wraps an existing InputStream.

方法概要

方法

限定符和类型	方法和说明
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.

从类继承的方法 java.io.FilterInputStream

close, mark, reset, skip

从类继承的方法 java.lang.Object

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

构造器详细资料

ToNetASCIIInputStream

public ToNetASCIIInputStream(java.io.InputStream input)

Creates a ToNetASCIIInputStream instance that wraps an existing InputStream.

参数:

input - The InputStream to wrap.

方法详细资料

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.

覆盖:

read 在类中 java.io.FilterInputStream

返回:

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

抛出:

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.

覆盖:

read 在类中 java.io.FilterInputStream

参数:

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

返回:

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

抛出:

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.

覆盖:

read 在类中 java.io.FilterInputStream

参数:

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.

返回:

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

抛出:

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

markSupported

public boolean markSupported()

Returns false. Mark is not supported.

覆盖:

markSupported 在类中 java.io.FilterInputStream

available

public int available()
              throws java.io.IOException

覆盖:

available 在类中 java.io.FilterInputStream

抛出:

java.io.IOException