de.bb.util

Class LogFile

java.lang.Object

de.bb.util.LogFile

All Implemented Interfaces:

SessionManager.Callback

public class LogFile
extends java.lang.Object
implements SessionManager.Callback

Provides simple log facilities. These are:

• Write a message into the log file.
• Write a message with timestamp into the log file.
• Create each day a new log file, using the file name and the encoded date.

Constructor Summary

Constructors

Constructor and Description
LogFile(java.lang.String bn) Create a LogFile using the specified base name.
LogFile(java.lang.String bn, java.lang.String fmt) Create a LogFile using the specified base name.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	dontRemove(java.lang.Object key) Is called be the removeButAsk() function.
void	write(java.lang.String msg) Append a message to the log file.
void	writeDate(java.lang.String msg) Append a message to the log file and add a date/time stamp.
void	writeln(byte[] msg) Append a message to the log file.
void	writeln(java.lang.String msg) Append a message to the log file.

Methods inherited from class java.lang.Object

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

Constructor Detail

LogFile

public LogFile(java.lang.String bn)

Create a LogFile using the specified base name. The actual date is always added to the base name, and each day a new log file is created. If * is used as base name, stdout is used for output.

Parameters:

bn - the log files base name

LogFile

public LogFile(java.lang.String bn,
       java.lang.String fmt)

Create a LogFile using the specified base name. The actual date is always added to the base name, and each day a new log file is created. If * is used as base name, stdout is used for output.

Parameters:

bn - the log files base name

fmt - the date format which is appended to the basename

Method Detail

writeDate

public void writeDate(java.lang.String msg)

Append a message to the log file and add a date/time stamp.

Parameters:

msg - the message

writeln

public void writeln(java.lang.String msg)

Append a message to the log file.

Parameters:

msg - the message

writeln

public void writeln(byte[] msg)

Append a message to the log file.

Parameters:

msg - the message

write

public void write(java.lang.String msg)

Append a message to the log file.

Parameters:

msg - the message

dontRemove

public boolean dontRemove(java.lang.Object key)

Description copied from interface: SessionManager.Callback

Is called be the removeButAsk() function. If the implementation returns true, the object is not removed. The implementation may touch the object, to renew the sessions life time. If the session remains untouched, touch() is called by the SessionManager with its default life time.

Specified by:

dontRemove in interface SessionManager.Callback

Parameters:

key - the key which binds the session to the SessionManager.

Returns:

true to renew the session life time, false, to allow deletion of the session.