uk.ltd.getahead.dwr.util
Class ServletLoggingOutput

java.lang.Object
  uk.ltd.getahead.dwr.util.ServletLoggingOutput

All Implemented Interfaces:

LoggingOutput

public class ServletLoggingOutput
extends java.lang.Object
implements LoggingOutput

An implementation of LoggingOutput that sends stuff to the Servlet.log stream.

Author:

Joe Walker [joe at getahead dot ltd dot uk]

Field Summary

static int	LEVEL_DEBUG Testing information.
static int	LEVEL_ERROR Something has gone wrong with the current request.
static int	LEVEL_FATAL Something has gone very badly wrong.
static int	LEVEL_INFO An event happened that we might need to keep track of.
static int	LEVEL_WARN Something has gone wrong, but it could well be the users fault.

Constructor Summary

ServletLoggingOutput()

Method Summary

void	debug(java.lang.String message) Logger a debug message
void	error(java.lang.String message) Logger an error message
void	error(java.lang.String message, java.lang.Throwable th) Logger an error message
void	fatal(java.lang.String message) Logger a fatal error message
void	fatal(java.lang.String message, java.lang.Throwable th) Logger a fatal error message
static int	getLevel()
void	info(java.lang.String message) Logger an info message
boolean	isDebugEnabled() Save CPU time when we are not debugging
static void	setExecutionContext(javax.servlet.http.HttpServlet servlet) Associate a servlet with this thread for logging purposes.
static void	setLevel(int level)
static void	setLevel(java.lang.String logLevel) String version of setLevel.
static void	unsetExecutionContext() Remove the servlet from this thread for logging purposes
void	warn(java.lang.String message) Logger a warning message
void	warn(java.lang.String message, java.lang.Throwable th) Logger a warning message

Methods inherited from class java.lang.Object

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

Field Detail

LEVEL_FATAL

public static final int LEVEL_FATAL

Something has gone very badly wrong. Processing is likely to stop.

See Also:

Constant Field Values

LEVEL_ERROR

public static final int LEVEL_ERROR

Something has gone wrong with the current request. The user will notice that we've broken something.

See Also:

Constant Field Values

LEVEL_WARN

public static final int LEVEL_WARN

Something has gone wrong, but it could well be the users fault. No need to panic yet.

See Also:

Constant Field Values

LEVEL_INFO

public static final int LEVEL_INFO

An event happened that we might need to keep track of.

See Also:

Constant Field Values

LEVEL_DEBUG

public static final int LEVEL_DEBUG

Testing information.

See Also:

Constant Field Values

Constructor Detail

ServletLoggingOutput

public ServletLoggingOutput()

Method Detail

debug

public void debug(java.lang.String message)

Description copied from interface: LoggingOutput

Logger a debug message

Specified by:

debug in interface LoggingOutput

Parameters:

message - The text to log

info

public void info(java.lang.String message)

Description copied from interface: LoggingOutput

Logger an info message

Specified by:

info in interface LoggingOutput

Parameters:

message - The text to log

warn

public void warn(java.lang.String message)

Description copied from interface: LoggingOutput

Logger a warning message

Specified by:

warn in interface LoggingOutput

Parameters:

message - The text to log

warn

public void warn(java.lang.String message,
                 java.lang.Throwable th)

Description copied from interface: LoggingOutput

Logger a warning message

Specified by:

warn in interface LoggingOutput

Parameters:

message - The text to log

th - An optional stack trace

error

public void error(java.lang.String message)

Description copied from interface: LoggingOutput

Logger an error message

Specified by:

error in interface LoggingOutput

Parameters:

message - The text to log

error

public void error(java.lang.String message,
                  java.lang.Throwable th)

Description copied from interface: LoggingOutput

Logger an error message

Specified by:

error in interface LoggingOutput

Parameters:

message - The text to log

th - An optional stack trace

fatal

public void fatal(java.lang.String message)

Description copied from interface: LoggingOutput

Logger a fatal error message

Specified by:

fatal in interface LoggingOutput

Parameters:

message - The text to log

fatal

public void fatal(java.lang.String message,
                  java.lang.Throwable th)

Description copied from interface: LoggingOutput

Logger a fatal error message

Specified by:

fatal in interface LoggingOutput

Parameters:

message - The text to log

th - An optional stack trace

setExecutionContext

public static void setExecutionContext(javax.servlet.http.HttpServlet servlet)

Associate a servlet with this thread for logging purposes.

Parameters:

servlet - The servlet to use for logging in this thread

unsetExecutionContext

public static void unsetExecutionContext()

Remove the servlet from this thread for logging purposes

setLevel

public static void setLevel(java.lang.String logLevel)

String version of setLevel.

Parameters:

logLevel - One of FATAL, ERROR, WARN, INFO, DEBUG

isDebugEnabled

public boolean isDebugEnabled()

Description copied from interface: LoggingOutput

Save CPU time when we are not debugging

Specified by:

isDebugEnabled in interface LoggingOutput

Returns:

true if debugging is enabled

setLevel

public static void setLevel(int level)

Parameters:

level - The logging level to set.

getLevel

public static int getLevel()

Returns:

Returns the logging level.