com.purpletech.util
Class Logger

java.lang.Object
  |
  +--com.purpletech.util.Logger

public class Logger

extends java.lang.Object

Manages a list of log streams. By default, there are four log streams:

Log	Target	Purpose
err	System.err	Bad things the operator should know about
warn / warning	System.err	Bad things the operator may or may not want to know about
info / note	System.out	Informative status messages the operator may want to know about
debug	null (disabled)	Simple status messages to help you track the flow of control or data. Usually this is useless, so it's disabled by default.

When you call one of the log routines, it will print a line that contains the date, the name of the thread, the thread priority, and the message.

Usage: logger.err("invalid shoe size");

Field Summary

boolean	showThreadName
boolean	showThreadPriority

Constructor Summary

Logger()

Method Summary

void	debug(java.lang.Object msg)
void	disableLog(java.lang.String which)
void	err(java.lang.Object msg)
java.io.PrintStream	getLog(java.lang.String which)
void	info(java.lang.Object msg)
void	log(java.lang.String which, java.lang.Object msg) If msg is a String, it gets logged.
static void	main(java.lang.String[] args)
java.io.PrintStream	makeStream(java.lang.String file) Make a PrintStream that prints to a file.
void	note(java.lang.Object msg)
protected java.lang.String	realname(java.lang.String which)
void	setLog(java.lang.String which, java.io.PrintStream out) Set the output stream for the given log type.
void	setLog(java.lang.String which, java.lang.String file)
void	warn(java.lang.Object msg)
void	warning(java.lang.Object msg)

Methods inherited from class java.lang.Object

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

Field Detail

showThreadName

public boolean showThreadName

showThreadPriority

public boolean showThreadPriority

Constructor Detail

Logger

public Logger()

Method Detail

realname

protected java.lang.String realname(java.lang.String which)

getLog

public java.io.PrintStream getLog(java.lang.String which)

disableLog

public void disableLog(java.lang.String which)

setLog

public void setLog(java.lang.String which,
                   java.io.PrintStream out)

Set the output stream for the given log type. You can pass System.err or System.out, or a file name (which goes to the overloaded function), or any PrintStream

setLog

public void setLog(java.lang.String which,
                   java.lang.String file)

err

public void err(java.lang.Object msg)

warn

public void warn(java.lang.Object msg)

warning

public void warning(java.lang.Object msg)

info

public void info(java.lang.Object msg)

note

public void note(java.lang.Object msg)

debug

public void debug(java.lang.Object msg)

log

public void log(java.lang.String which,
                java.lang.Object msg)

If msg is a String, it gets logged. If msg is an Object, it gets converted to a String. If it's a Throwable, its stack trace gets printed to the stream (starting on the next line).

makeStream

public java.io.PrintStream makeStream(java.lang.String file)

Make a PrintStream that prints to a file. Suitable for passing to setLog().

main

public static void main(java.lang.String[] args)