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/**
* Copyright (c) 2004-2011 QOS.ch
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
package org.slf4j;
import org.slf4j.helpers.BasicMarkerFactory;
import org.slf4j.helpers.Util;
import org.slf4j.impl.StaticMarkerBinder;
/**
* MarkerFactory is a utility class producing {@link Marker} instances as
* appropriate for the logging system currently in use.
*
*
* This class is essentially implemented as a wrapper around an
* {@link IMarkerFactory} instance bound at compile time.
*
*
* Please note that all methods in this class are static.
*
* @author Ceki Gülcü
*/
public class MarkerFactory {
static IMarkerFactory MARKER_FACTORY;
private MarkerFactory() {
}
/**
* As of SLF4J version 1.7.14, StaticMarkerBinder classes shipping in various bindings
* come with a getSingleton() method. Previously only a public field called SINGLETON
* was available.
*
* @return IMarkerFactory
* @throws NoClassDefFoundError in case no binding is available
* @since 1.7.14
*/
private static IMarkerFactory bwCompatibleGetMarkerFactoryFromBinder() throws NoClassDefFoundError {
try {
return StaticMarkerBinder.getSingleton().getMarkerFactory();
} catch (NoSuchMethodError nsme) {
// binding is probably a version of SLF4J older than 1.7.14
return StaticMarkerBinder.SINGLETON.getMarkerFactory();
}
}
// this is where the binding happens
static {
try {
MARKER_FACTORY = bwCompatibleGetMarkerFactoryFromBinder();
} catch (NoClassDefFoundError e) {
MARKER_FACTORY = new BasicMarkerFactory();
} catch (Exception e) {
// we should never get here
Util.report("Unexpected failure while binding MarkerFactory", e);
}
}
/**
* Return a Marker instance as specified by the name parameter using the
* previously bound {@link IMarkerFactory}instance.
*
* @param name
* The name of the {@link Marker} object to return.
* @return marker
*/
public static Marker getMarker(String name) {
return MARKER_FACTORY.getMarker(name);
}
/**
* Create a marker which is detached (even at birth) from the MarkerFactory.
*
* @param name the name of the marker
* @return a dangling marker
* @since 1.5.1
*/
public static Marker getDetachedMarker(String name) {
return MARKER_FACTORY.getDetachedMarker(name);
}
/**
* Return the {@link IMarkerFactory}instance in use.
*
*
The IMarkerFactory instance is usually bound with this class at
* compile time.
*
* @return the IMarkerFactory instance in use
*/
public static IMarkerFactory getIMarkerFactory() {
return MARKER_FACTORY;
}
}