Package weka.core

Class Debug.SimpleLog

java.lang.Object

weka.core.Debug.SimpleLog

All Implemented Interfaces:

Serializable, RevisionHandler

Enclosing class:

Debug

public static class Debug.SimpleLog
extends Object
implements Serializable, RevisionHandler

A little, simple helper class for logging stuff. Uses simple file access and not the java.util.logging stuff (see Log for that). Uses the writeToFile methods of the Debug class.

See Also:

Debug.Log, Debug.writeToFile(String, String), Debug.writeToFile(String, String, boolean), Serialized Form

Constructor Summary

Constructors

Constructor	Description
SimpleLog()	default constructor, uses only stdout
SimpleLog(String filename)	Creates a logger that writes into the specified file.
SimpleLog(String filename, boolean append)	Creates a logger that writes into the specified file.

Method Summary

Modifier and Type	Method	Description
String	getFilename()	returns the filename of the log, can be null
String	getRevision()	Returns the revision string.
void	log(String message)	logs the given message to the file
void	logSystemInfo()	a convenience method for dumping the current system info in the log file
String	toString()	returns a string representation of the logger

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleLog

public SimpleLog()

default constructor, uses only stdout

SimpleLog

public SimpleLog(String filename)

Creates a logger that writes into the specified file. Appends to the file by default.

Parameters:

filename - the file to write to, if null then only stdout is used

SimpleLog

public SimpleLog(String filename,
                 boolean append)

Creates a logger that writes into the specified file. Appends to the file by default.

Parameters:

filename - the file to write to, if null then only stdout is used

append - if false, the file will be deleted first

Method Detail

getFilename

public String getFilename()

returns the filename of the log, can be null

Returns:

the filename of the log

log

public void log(String message)

logs the given message to the file

Parameters:

message - the message to log

logSystemInfo

public void logSystemInfo()

a convenience method for dumping the current system info in the log file

See Also:

SystemInfo

toString

public String toString()

returns a string representation of the logger

Overrides:

toString in class Object

Returns:

a string representation of the logger

getRevision

public String getRevision()

Returns the revision string.

Specified by:

getRevision in interface RevisionHandler

Returns:

the revision