com.goldencode.p2j.util

Class ProcessStream.InReader

java.lang.Object

com.goldencode.p2j.util.ProcessStream.InReader

All Implemented Interfaces:

ProcessStream.IOHelper

Enclosing class:

ProcessStream

private class ProcessStream.InReader
extends java.lang.Object
implements ProcessStream.IOHelper

Provides low level reader input support.

Field Summary

Fields

Modifier and Type	Field and Description
private java.io.Reader	in The reader from which to read.

Constructor Summary

Constructors

Constructor and Description
InReader(java.io.InputStream in) Construct an instance with the given stream as the source.

Method Summary

Modifier and Type	Method and Description
int	available() The number of bytes available to be immediately read without blocking.
void	close() Close and release any OS resources.
int	read() Read a character from the current read position in the stream.
void	write(byte[] data) Write the given byte array to the output destination.
void	write(byte[] data, int off, int len) Write the specified range of bytes from the given byte array to the output stream.
void	write(java.lang.String data) Write the given string to the output destination.
void	writeCh(char ch) Write the given character to the output destination.

Methods inherited from class java.lang.Object

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

Field Detail

in

private java.io.Reader in

The reader from which to read.

Constructor Detail

InReader

InReader(java.io.InputStream in)

Construct an instance with the given stream as the source.

Parameters:

in - The stream source.

Method Detail

available

public int available()
              throws java.io.IOException

The number of bytes available to be immediately read without blocking.

Specified by:

available in interface ProcessStream.IOHelper

Returns:

1 if there is at least 1 (maybe more) bytes ready to read or 0 if there is no data ready to be read.

Throws:

java.io.IOException

writeCh

public void writeCh(char ch)

Write the given character to the output destination.

Specified by:

writeCh in interface ProcessStream.IOHelper

Parameters:

ch - The character to be written.

write

public void write(java.lang.String data)

Write the given string to the output destination.

Specified by:

write in interface ProcessStream.IOHelper

Parameters:

data - The data to be written.

write

public void write(byte[] data)

Write the given byte array to the output destination.

Specified by:

write in interface ProcessStream.IOHelper

Parameters:

data - The data to be written.

write

public void write(byte[] data,
                  int off,
                  int len)
           throws java.io.IOException

Write the specified range of bytes from the given byte array to the output stream.

Specified by:

write in interface ProcessStream.IOHelper

Parameters:

data - The data to be written.

off - Starting offset in data from which to read bytes to be written. Must be non-negative and < data.length.

len - Length of data to be written. Must be non-negative and <= (data.length - offset).

Throws:

java.io.IOException - If an I/O error occurs.

read

public int read()
         throws java.io.IOException

Read a character from the current read position in the stream.

The underlying stream subclass determines the content of the result. Byte oriented streams such as pipes or files will return a byte while readers that generate keystrokes or characters may return a Unicode character.

Specified by:

read in interface ProcessStream.IOHelper

Returns:

The next character read from the stream.

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Close and release any OS resources.

Specified by:

close in interface ProcessStream.IOHelper

Throws:

java.io.IOException