Impl (MMBase 1.9-SNAPSHOT

java.lang.Object
- org.mmbase.util.logging.java.Impl

All Implemented Interfaces:

Logger
```
public final class Impl
extends Object
implements Logger
```
Since java 1.4 there is a Logger implemented in java itself; this MMBase Logger implementation delegates all logging to this java framework. The java framework is comparable to log4j, so you could use it as an alternative.

Level in MMBase's Level Level in Java's Level

TRACE Level.FINEST

TRACE Level.FINER

DEBUG Level.FINE

SERVICE Level.CONFIG

INFO Level.INFO

WARN Level.WARNING

ERROR Level.SEVERE

FATAL Level.SEVERE

Since:

MMBase-1.8

Author:

Michiel Meeuwissen

See Also:

MMBaseLogger

Level in MMBase's `Level`	Level in Java's `Level`
TRACE	`Level.FINEST`
TRACE	`Level.FINER`
DEBUG	`Level.FINE`
SERVICE	`Level.CONFIG`
INFO	`Level.INFO`
WARN	`Level.WARNING`
ERROR	`Level.SEVERE`
FATAL	`Level.SEVERE`

Constructor Summary

Constructors
Modifier Constructor and Description

protected Impl(String name)
Constructor.

Constructors
Modifier	Constructor and Description
`protected`	`Impl(String name)` Constructor.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`configure(String s)` Calls LogManager#readConfiguration, and feeds it with the configured InputStream.
`void`	`debug(Object m)` Logs the message m with debug priority.
`void`	`debug(Object m, Throwable t)`
`void`	`error(Object m)` Logs the message m with error priority.
`void`	`error(Object m, Throwable t)`
`void`	`fatal(Object m)` Logs the message m with fatal priority.
`void`	`fatal(Object m, Throwable t)`
`protected Level`	`getJavaLevel(Level p)`
`static Impl`	`getLoggerInstance(String name)` Return a MMBase logger object, which wrappes a java.util.logging.Logger object.
`void`	`info(Object m)` Logs the message m with info priority.
`void`	`info(Object m, Throwable t)`
`boolean`	`isDebugEnabled()` Returns true if for this category (Logger), a call to debug (or trace) would do something.
`boolean`	`isEnabledFor(Level l)`
`boolean`	`isServiceEnabled()` Returns true if for this category (Logger), a call to service (or debug or trace) would do something.
`boolean`	`isTraceEnabled()` Returns true if for this category (Logger), a call to trace would do something.
`void`	`service(Object m)` Logs the message m with service priority.
`void`	`service(Object m, Throwable t)`
`void`	`setLevel(Level p)` If you want to override the level in the configuration file fixed for this category, you can do it with this method.
`void`	`trace(Object m)` Logs the message m with trace priority.
`void`	`trace(Object m, Throwable t)`
`void`	`warn(Object m)` Logs the message m with warn priority.
`void`	`warn(Object m, Throwable t)`

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

- Constructor Detail
  - Impl
```
protected Impl(String name)
```
    Constructor. This calls java's Logger.getLogger(String).
- Method Detail
  - getLoggerInstance
```
public static Impl getLoggerInstance(String name)
```
    Return a MMBase logger object, which wrappes a java.util.logging.Logger object.
  - configure
```
public static void configure(String s)
```
    Calls LogManager#readConfiguration, and feeds it with the configured InputStream. So you can configure java-logging. The file is watched, so you can add and change it later. There need not be a configuration file for java logging.
  - getJavaLevel
```
protected Level getJavaLevel(Level p)
```
  - setLevel
```
public void setLevel(Level p)
```
    Description copied from interface: Logger
    
    If you want to override the level in the configuration file fixed for this category, you can do it with this method. This could be usefull for example to switch on all debug logging when something has gone wrong.
    
    Specified by:
    
    setLevel in interface Logger
    
    Parameters:
    
    p - The level of the priority. One of the constants Level.TRACE, Level.DEBUG, Level.SERVICE, Level.INFO, Level.WARN, Level.ERROR or Level.FATAL.
  - trace
```
public void trace(Object m)
```
    Description copied from interface: Logger
    
    Logs the message m with trace priority. For detailled debugging.
    
    Specified by:
    
    trace in interface Logger
    
    See Also:
    
    Logger.debug(Object)
  - trace
```
public void trace(Object m,
                  Throwable t)
```
    Specified by:
    
    trace in interface Logger
  - debug
```
public void debug(Object m)
```
    Description copied from interface: Logger
    
    Logs the message m with debug priority. Everything a non-developer never wants to see, but you do, to * keep track of what is happening. There can be a lot of them in the code, so it is important that you well protect them with `isDebugEnabled's, to minimize overhead.
    
    Specified by:
    
    debug in interface Logger
  - debug
```
public void debug(Object m,
                  Throwable t)
```
    Specified by:
    
    debug in interface Logger
  - service
```
public void service(Object m)
```
    Description copied from interface: Logger
    
    Logs the message m with service priority. An interested system administrator might want to see these things. For examples all queries to the database could be logged with `service' priority. Or if a image is calculated, that could be logged as a `service'. One would get a fairly good idea what MMBase is doing if `service' is switched on.
    
    Specified by:
    
    service in interface Logger
  - service
```
public void service(Object m,
                    Throwable t)
```
    Specified by:
    
    service in interface Logger
  - info
```
public void info(Object m)
```
    Description copied from interface: Logger
    
    Logs the message m with info priority. As `service', but focussed on things system administrators are usually most interested in, like authorisation issues. For example changes on the database could be logged, such that one can see in the logs what happened.
    
    Specified by:
    
    info in interface Logger
  - info
```
public void info(Object m,
                 Throwable t)
```
    Specified by:
    
    info in interface Logger
  - warn
```
public void warn(Object m)
```
    Description copied from interface: Logger
    
    Logs the message m with warn priority. Something strange happened, but it is not necessarily an error.
    
    Specified by:
    
    warn in interface Logger
  - warn
```
public void warn(Object m,
                 Throwable t)
```
    Specified by:
    
    warn in interface Logger
  - error
```
public void error(Object m)
```
    Description copied from interface: Logger
    
    Logs the message m with error priority. Something is definitely wrong. An inconsistency was detected. It might be unpredictable what will happen.
    
    Specified by:
    
    error in interface Logger
  - error
```
public void error(Object m,
                  Throwable t)
```
    Specified by:
    
    error in interface Logger
  - fatal
```
public void fatal(Object m)
```
    Description copied from interface: Logger
    
    Logs the message m with fatal priority. The progam could not function any more. Normally, you would throw an exception, which then will be logged with fatal priority. I've made an arangement in `Logger' that logs uncatched exceptions with fatal priority, but nevertheless it's better to always catch all exceptions in a more regulated way.
    
    Specified by:
    
    fatal in interface Logger
  - fatal
```
public void fatal(Object m,
                  Throwable t)
```
    Specified by:
    
    fatal in interface Logger
  - isTraceEnabled
```
public boolean isTraceEnabled()
```
    Description copied from interface: Logger
    
    Returns true if for this category (Logger), a call to trace would do something.
    
    Specified by:
    
    isTraceEnabled in interface Logger
  - isDebugEnabled
```
public boolean isDebugEnabled()
```
    Description copied from interface: Logger
    
    Returns true if for this category (Logger), a call to debug (or trace) would do something.
    
    Specified by:
    
    isDebugEnabled in interface Logger
  - isServiceEnabled
```
public boolean isServiceEnabled()
```
    Description copied from interface: Logger
    
    Returns true if for this category (Logger), a call to service (or debug or trace) would do something.
    
    Specified by:
    
    isServiceEnabled in interface Logger
  - isEnabledFor
```
public boolean isEnabledFor(Level l)
```
    Specified by:
    
    isEnabledFor in interface Logger

Class Impl

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Impl

Method Detail

getLoggerInstance

configure

getJavaLevel

setLevel

trace

trace

debug

debug

service

service

info

info

warn

warn

error

error

fatal

fatal

isTraceEnabled

isDebugEnabled

isServiceEnabled

isEnabledFor