Package weka.core.logging

Class OutputLogger.OutputPrintStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

java.io.PrintStream

weka.core.logging.OutputLogger.OutputPrintStream

All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable

Enclosing class:

OutputLogger

public static class OutputLogger.OutputPrintStream
extends PrintStream

A print stream class to capture all data from stdout and stderr.

Version:

$Revision$

Author:

fracpete (fracpete at waikato dot ac dot nz)

Constructor Summary

Constructors

Constructor	Description
OutputPrintStream(OutputLogger owner, PrintStream stream)	Default constructor.

Method Summary

Modifier and Type	Method	Description
PrintStream	append(char c)	Appends the specified character to this output stream.
PrintStream	append(CharSequence csq)	Appends the specified character sequence to this output stream.
PrintStream	append(CharSequence csq, int start, int end)	Appends a subsequence of the specified character sequence to this output stream.
void	flush()	ignored.
void	print(boolean x)	prints the given boolean to the streams.
void	print(int x)	prints the given int to the streams.
void	print(Object x)	prints the given object to the streams.
void	print(String x)	prints the given string to the streams.
void	println()	prints a new line to the streams.
void	println(boolean x)	prints the given boolean to the streams.
void	println(int x)	prints the given int to the streams.
void	println(Object x)	prints the given object to the streams (for Throwables we print the stack trace).
void	println(String x)	prints the given string to the streams.
void	write(byte[] b)	Writes the bytes to the stream.
void	write(byte[] buf, int off, int len)	Writes the bytes to the stream.
void	write(int b)	Writes the byte to the stream.

Methods inherited from class java.io.PrintStream

checkError, close, format, format, print, print, print, print, print, printf, printf, println, println, println, println, println

Methods inherited from class java.io.OutputStream

nullOutputStream

Methods inherited from class java.lang.Object

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

Constructor Detail

OutputPrintStream

public OutputPrintStream(OutputLogger owner,
                         PrintStream stream)
                  throws Exception

Default constructor.

Parameters:

owner - the owning logger

stream - the stream

Throws:

Exception - if something goes wrong

Method Detail

flush

public void flush()

ignored.

Specified by:

flush in interface Flushable

Overrides:

flush in class PrintStream

print

public void print(int x)

prints the given int to the streams.

Overrides:

print in class PrintStream

Parameters:

x - the object to print

print

public void print(boolean x)

prints the given boolean to the streams.

Overrides:

print in class PrintStream

Parameters:

x - the object to print

print

public void print(String x)

prints the given string to the streams.

Overrides:

print in class PrintStream

Parameters:

x - the object to print

print

public void print(Object x)

prints the given object to the streams.

Overrides:

print in class PrintStream

Parameters:

x - the object to print

println

public void println()

prints a new line to the streams.

Overrides:

println in class PrintStream

println

public void println(int x)

prints the given int to the streams.

Overrides:

println in class PrintStream

Parameters:

x - the object to print

println

public void println(boolean x)

prints the given boolean to the streams.

Overrides:

println in class PrintStream

Parameters:

x - the object to print

println

public void println(String x)

prints the given string to the streams.

Overrides:

println in class PrintStream

Parameters:

x - the object to print

println

public void println(Object x)

prints the given object to the streams (for Throwables we print the stack trace).

Overrides:

println in class PrintStream

Parameters:

x - the object to print

write

public void write(int b)

Writes the byte to the stream.

Overrides:

write in class PrintStream

Parameters:

b - the byte to write

write

public void write(byte[] b)
           throws IOException

Writes the bytes to the stream.

Overrides:

write in class FilterOutputStream

Parameters:

b - the bytes to write

Throws:

IOException

write

public void write(byte[] buf,
                  int off,
                  int len)

Writes the bytes to the stream.

Overrides:

write in class PrintStream

Parameters:

buf - the buffer to use

off - the offset

len - the number of bytes to write

append

public PrintStream append(CharSequence csq,
                          int start,
                          int end)

Appends a subsequence of the specified character sequence to this output stream.

An invocation of this method of the form out.append(csq, start, end) when csq is not null, behaves in exactly the same way as the invocation

     out.print(csq.subSequence(start, end).toString())
 

Specified by:

append in interface Appendable

Overrides:

append in class PrintStream

Parameters:

csq - The character sequence from which a subsequence will be appended. If csq is null, then characters will be appended as if csq contained the four characters "null".

start - The index of the first character in the subsequence

end - The index of the character following the last character in the subsequence

Returns:

This output stream

Throws:

IndexOutOfBoundsException - If start or end are negative, start is greater than end, or end is greater than csq.length()

Since:

1.5

append

public PrintStream append(CharSequence csq)

Appends the specified character sequence to this output stream.

An invocation of this method of the form out.append(csq) behaves in exactly the same way as the invocation

     out.print(csq.toString())
 

Depending on the specification of toString for the character sequence csq, the entire sequence may not be appended. For instance, invoking then toString method of a character buffer will return a subsequence whose content depends upon the buffer's position and limit.

Specified by:

append in interface Appendable

Overrides:

append in class PrintStream

Parameters:

csq - The character sequence to append. If csq is null, then the four characters "null" are appended to this output stream.

Returns:

This output stream

Since:

1.5

append

public PrintStream append(char c)

Appends the specified character to this output stream.

An invocation of this method of the form out.append(c) behaves in exactly the same way as the invocation

     out.print(c)
 

Specified by:

append in interface Appendable

Overrides:

append in class PrintStream

Parameters:

c - The 16-bit character to append

Returns:

This output stream

Since:

1.5