weka.core
Class Debug.SimpleLog

java.lang.Object
  weka.core.Debug.SimpleLog

All Implemented Interfaces:

java.io.Serializable, RevisionHandler

Enclosing class:

Debug

public static class Debug.SimpleLog
extends java.lang.Object
implements java.io.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

Debug.SimpleLog()
default constructor, uses only stdout

Debug.SimpleLog(java.lang.String filename)
Creates a logger that writes into the specified file.

Debug.SimpleLog(java.lang.String filename, boolean append)
Creates a logger that writes into the specified file.

Method Summary

java.lang.String	getFilename() returns the filename of the log, can be null
java.lang.String	getRevision() Returns the revision string.
void	log(java.lang.String message) logs the given message to the file
void	logSystemInfo() a convenience method for dumping the current system info in the log file
java.lang.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

Debug.SimpleLog

public Debug.SimpleLog()

default constructor, uses only stdout

Debug.SimpleLog

public Debug.SimpleLog(java.lang.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

Debug.SimpleLog

public Debug.SimpleLog(java.lang.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 java.lang.String getFilename()

returns the filename of the log, can be null

Returns:

the filename of the log

log

public void log(java.lang.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 java.lang.String toString()

returns a string representation of the logger

Overrides:

toString in class java.lang.Object

Returns:

a string representation of the logger

getRevision

public java.lang.String getRevision()

Returns the revision string.

Specified by:

getRevision in interface RevisionHandler

Returns:

the revision