java.lang.Object
- weka.core.Debug

All Implemented Interfaces:

java.io.Serializable, RevisionHandler
```
public class Debug
extends java.lang.Object
implements java.io.Serializable, RevisionHandler
```
A helper class for debug output, logging, clocking, etc.

Version:

$Revision: 7519 $

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`Debug.Clock`	A little helper class for clocking and outputting times.
`static class`	`Debug.DBO`	contains debug methods
`static class`	`Debug.Log`	A helper class for logging stuff.
`static class`	`Debug.Random`	This extended Random class enables one to print the generated random numbers etc., before they are returned.
`static class`	`Debug.SimpleLog`	A little, simple helper class for logging stuff.
`static class`	`Debug.Timestamp`	A class that can be used for timestamps in files, The toString() method simply returns the associated Date object in a timestamp format.

Field Summary

Fields
Modifier and Type	Field	Description
`static java.util.logging.Level`	`ALL`	the log level All
`static java.util.logging.Level`	`CONFIG`	the log level Vonfig
`static java.util.logging.Level`	`FINE`	the log level Fine
`static java.util.logging.Level`	`FINER`	the log level Finer
`static java.util.logging.Level`	`FINEST`	the log level Finest
`static java.util.logging.Level`	`INFO`	the log level Info
`static java.util.logging.Level`	`OFF`	the log level Off - i.e., no logging
`static java.util.logging.Level`	`SEVERE`	the log level Severe
`static java.util.logging.Level`	`WARNING`	the log level Warning

Constructor Summary

Constructors
Constructor	Description
`Debug()`	default constructor, prints only to stdout
`Debug(java.lang.String filename)`	logs the output to the specified file (and stdout).
`Debug(java.lang.String filename, int size, int numFiles)`	logs the output

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Debug.Clock`	`getClock()`	returns the instance of the Clock that is internally used
`static java.lang.String`	`getCurrentDir()`	returns the current working directory of the user
`boolean`	`getEnabled()`	returns whether the logging is enabled
`static java.lang.String`	`getHomeDir()`	returns the home directory of the user
`java.lang.String`	`getRevision()`	Returns the revision string.
`static java.lang.String`	`getTempDir()`	returns the system temp directory
`static java.lang.Object`	`loadFromFile(java.lang.String filename)`	deserializes the content of the file and returns it, null if an error occurred.
`void`	`log(java.lang.String message)`	prints the given message with level INFO
`void`	`log(java.util.logging.Level level, java.lang.String message)`	prints the given message with the specified level and an empty sourceclass
`void`	`log(java.util.logging.Level level, java.lang.String sourceclass, java.lang.String message)`	prints the given message with the specified level
`void`	`log(java.util.logging.Level level, java.lang.String sourceclass, java.lang.String sourcemethod, java.lang.String message)`	prints the given message with the specified level
`static Debug.Clock`	`newClock()`	returns a new instance of a clock
`static Debug.Log`	`newLog(java.lang.String filename, int size, int numFiles)`	returns a new Log instance
`static java.util.Random`	`newRandom()`	returns a default debug random object, with no particular seed and debugging enabled.
`static java.util.Random`	`newRandom(int seed)`	returns a debug random object with the specified seed and debugging enabled.
`static Debug.Timestamp`	`newTimestamp()`	returns a default timestamp for the current date/time
`static boolean`	`saveToFile(java.lang.String filename, java.lang.Object o)`	writes the serialized object to the speicified file
`void`	`setEnabled(boolean value)`	sets whether the logging is enabled or not
`void`	`startClock()`	starts the clock
`void`	`stopClock(java.lang.String message)`	stops the clock and prints the message associated with the time, but only if the logging is enabled.
`static java.util.logging.Level`	`stringToLevel(java.lang.String level)`	turns the string representing a level, e.g., "FINE" or "ALL" into the corresponding level (case-insensitive).
`static boolean`	`writeToFile(java.lang.String filename, java.lang.Object obj)`	Writes the given object to the specified file.
`static boolean`	`writeToFile(java.lang.String filename, java.lang.Object obj, boolean append)`	Writes the given object to the specified file.
`static boolean`	`writeToFile(java.lang.String filename, java.lang.String message)`	Writes the given message to the specified file.
`static boolean`	`writeToFile(java.lang.String filename, java.lang.String message, boolean append)`	Writes the given message to the specified file.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - ALL
```
public static final java.util.logging.Level ALL
```
    the log level All
  - CONFIG
```
public static final java.util.logging.Level CONFIG
```
    the log level Vonfig
  - FINE
```
public static final java.util.logging.Level FINE
```
    the log level Fine
  - FINER
```
public static final java.util.logging.Level FINER
```
    the log level Finer
  - FINEST
```
public static final java.util.logging.Level FINEST
```
    the log level Finest
  - INFO
```
public static final java.util.logging.Level INFO
```
    the log level Info
  - OFF
```
public static final java.util.logging.Level OFF
```
    the log level Off - i.e., no logging
  - SEVERE
```
public static final java.util.logging.Level SEVERE
```
    the log level Severe
  - WARNING
```
public static final java.util.logging.Level WARNING
```
    the log level Warning
- Constructor Detail
  - Debug
```
public Debug()
```
    default constructor, prints only to stdout
  - Debug
```
public Debug(java.lang.String filename)
```
    logs the output to the specified file (and stdout). Size is 1,000,000 bytes and 1 file.
    
    Parameters:
    
    filename - the name of the log
  - Debug
```
public Debug(java.lang.String filename,
             int size,
             int numFiles)
```
    logs the output
    
    Parameters:
    
    filename - the name of the log
    
    size - the size of the files in bytes
    
    numFiles - the number of files for rotating
- Method Detail
  - stringToLevel
```
public static java.util.logging.Level stringToLevel(java.lang.String level)
```
    turns the string representing a level, e.g., "FINE" or "ALL" into the corresponding level (case-insensitive). The default is ALL.
    
    Parameters:
    
    level - the string to return a level for
    
    Returns:
    
    the corresponding level or the default
  - newLog
```
public static Debug.Log newLog(java.lang.String filename,
                               int size,
                               int numFiles)
```
    returns a new Log instance
    
    Parameters:
    
    filename - the name of the log
    
    size - the size of the files in bytes
    
    numFiles - the number of files for rotating
    
    Returns:
    
    the log instance
  - log
```
public void log(java.lang.String message)
```
    prints the given message with level INFO
    
    Parameters:
    
    message - the message to print
  - log
```
public void log(java.util.logging.Level level,
                java.lang.String message)
```
    prints the given message with the specified level and an empty sourceclass
    
    Parameters:
    
    level - the level of logging
    
    message - the message to print
  - log
```
public void log(java.util.logging.Level level,
                java.lang.String sourceclass,
                java.lang.String message)
```
    prints the given message with the specified level
    
    Parameters:
    
    level - the level of logging
    
    sourceclass - the class that logs the message
    
    message - the message to print
  - log
```
public void log(java.util.logging.Level level,
                java.lang.String sourceclass,
                java.lang.String sourcemethod,
                java.lang.String message)
```
    prints the given message with the specified level
    
    Parameters:
    
    level - the level of logging
    
    sourceclass - the class that logs the message
    
    sourcemethod - the method that logs the message
    
    message - the message to print
  - setEnabled
```
public void setEnabled(boolean value)
```
    sets whether the logging is enabled or not
    
    Parameters:
    
    value - if true logging will be enabled
  - getEnabled
```
public boolean getEnabled()
```
    returns whether the logging is enabled
    
    Returns:
    
    true if the logging is enabled
  - newClock
```
public static Debug.Clock newClock()
```
    returns a new instance of a clock
    
    Returns:
    
    a new instance of a Clock
  - getClock
```
public Debug.Clock getClock()
```
    returns the instance of the Clock that is internally used
    
    Returns:
    
    the clock that's being used
  - startClock
```
public void startClock()
```
    starts the clock
  - stopClock
```
public void stopClock(java.lang.String message)
```
    stops the clock and prints the message associated with the time, but only if the logging is enabled.
    
    Parameters:
    
    message - the message to print
    
    See Also:
    
    getEnabled()
  - newRandom
```
public static java.util.Random newRandom()
```
    returns a default debug random object, with no particular seed and debugging enabled.
    
    Returns:
    
    a new instance of a Random object
  - newRandom
```
public static java.util.Random newRandom(int seed)
```
    returns a debug random object with the specified seed and debugging enabled.
    
    Parameters:
    
    seed - the seed value
    
    Returns:
    
    a new instance of a Random object
  - newTimestamp
```
public static Debug.Timestamp newTimestamp()
```
    returns a default timestamp for the current date/time
    
    Returns:
    
    a new timestamp
  - getTempDir
```
public static java.lang.String getTempDir()
```
    returns the system temp directory
    
    Returns:
    
    the temp directory
  - getHomeDir
```
public static java.lang.String getHomeDir()
```
    returns the home directory of the user
    
    Returns:
    
    the user's home directory
  - getCurrentDir
```
public static java.lang.String getCurrentDir()
```
    returns the current working directory of the user
    
    Returns:
    
    the user's current working directory
  - writeToFile
```
public static boolean writeToFile(java.lang.String filename,
                                  java.lang.Object obj)
```
    Writes the given object to the specified file. The string representation of the object is appended to the file.
    
    Parameters:
    
    filename - the file to write to
    
    obj - the object to write to the file
    
    Returns:
    
    true if writing was successful
  - writeToFile
```
public static boolean writeToFile(java.lang.String filename,
                                  java.lang.String message)
```
    Writes the given message to the specified file. The message is appended to the file.
    
    Parameters:
    
    filename - the file to write to
    
    message - the message to write
    
    Returns:
    
    true if writing was successful
  - writeToFile
```
public static boolean writeToFile(java.lang.String filename,
                                  java.lang.Object obj,
                                  boolean append)
```
    Writes the given object to the specified file. The string representation of the object is either appended or replaces the current content of the file.
    
    Parameters:
    
    filename - the file to write to
    
    obj - the object to write to the file
    
    append - whether to append the message or not
    
    Returns:
    
    true if writing was successful
  - writeToFile
```
public static boolean writeToFile(java.lang.String filename,
                                  java.lang.String message,
                                  boolean append)
```
    Writes the given message to the specified file. The message is either appended or replaces the current content of the file.
    
    Parameters:
    
    filename - the file to write to
    
    message - the message to write
    
    append - whether to append the message or not
    
    Returns:
    
    true if writing was successful
  - saveToFile
```
public static boolean saveToFile(java.lang.String filename,
                                 java.lang.Object o)
```
    writes the serialized object to the speicified file
    
    Parameters:
    
    filename - the file to serialize the object to
    
    o - the object to serialize
    
    Returns:
    
    true if writing was successful
  - loadFromFile
```
public static java.lang.Object loadFromFile(java.lang.String filename)
```
    deserializes the content of the file and returns it, null if an error occurred.
    
    Parameters:
    
    filename - the name of the file to deserialize
    
    Returns:
    
    the deserialized content, null if problem occurred
  - getRevision
```
public java.lang.String getRevision()
```
    Returns the revision string.
    
    Specified by:
    
    getRevision in interface RevisionHandler
    
    Returns:
    
    the revision

Class Debug

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

ALL

CONFIG

FINE

FINER

FINEST

INFO

OFF

SEVERE

WARNING

Constructor Detail

Debug

Debug

Debug

Method Detail

stringToLevel

newLog

log

log

log

log

setEnabled

getEnabled

newClock

getClock

startClock

stopClock

newRandom

newRandom

newTimestamp

getTempDir

getHomeDir

getCurrentDir

writeToFile

writeToFile

writeToFile

writeToFile

saveToFile

loadFromFile

getRevision