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com.mchange.v2.log.jdk14logging.Jdk14MLog Maven / Gradle / Ivy
/*
* Distributed as part of mchange-commons-java 0.2.9
*
* Copyright (C) 2015 Machinery For Change, Inc.
*
* Author: Steve Waldman
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of EITHER:
*
* 1) The GNU Lesser General Public License (LGPL), version 2.1, as
* published by the Free Software Foundation
*
* OR
*
* 2) The Eclipse Public License (EPL), version 1.0
*
* You may choose which license to accept if you wish to redistribute
* or modify this work. You may offer derivatives of this work
* under the license you have chosen, or you may provide the same
* choice of license which you have been offered here.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received copies of both LGPL v2.1 and EPL v1.0
* along with this software; see the files LICENSE-EPL and LICENSE-LGPL.
* If not, the text of these licenses are currently available at
*
* LGPL v2.1: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* EPL v1.0: http://www.eclipse.org/org/documents/epl-v10.php
*
*/
package com.mchange.v2.log.jdk14logging;
import java.util.*;
import java.util.logging.*;
import com.mchange.v2.log.*;
import com.mchange.v2.util.DoubleWeakHashMap;
public final class Jdk14MLog extends MLog
{
final static String SUPPRESS_STACK_WALK_KEY = "com.mchange.v2.log.jdk14logging.suppressStackWalk";
private static String[] UNKNOWN_ARRAY = new String[] {"UNKNOWN_CLASS", "UNKNOWN_METHOD"};
private final static String CHECK_CLASS = "java.util.logging.Logger";
private final Map namedLoggerMap = new DoubleWeakHashMap();
private final static boolean suppress_stack_walk;
static
{
String suppressVal = MLogConfig.getProperty( SUPPRESS_STACK_WALK_KEY );
if (suppressVal == null || (suppressVal = suppressVal.trim()).length() == 0)
suppress_stack_walk = false;
else
{
if ( suppressVal.equalsIgnoreCase("true") )
suppress_stack_walk = true;
else if ( suppressVal.equalsIgnoreCase("false") )
suppress_stack_walk = false;
else
{
System.err.println("Bad value for " + SUPPRESS_STACK_WALK_KEY + ": '" + suppressVal + "'; defaulting to 'false'.");
suppress_stack_walk = false;
}
}
}
MLogger global = null;
public Jdk14MLog() throws ClassNotFoundException
{ Class.forName( CHECK_CLASS ); }
public synchronized MLogger getMLogger(String name)
{
name = name.intern();
MLogger out = (MLogger) namedLoggerMap.get( name );
if (out == null)
{
Logger lg = Logger.getLogger(name);
out = new Jdk14MLogger( lg );
namedLoggerMap.put( name, out );
}
return out;
}
public synchronized MLogger getMLogger()
{
if (global == null)
global = new Jdk14MLogger( LogManager.getLogManager().getLogger("global") );
return global;
}
/*
* We have to do this ourselves when class and method aren't provided,
* because the automatic extraction of this information will find the
* (not very informative) calls in this class.
*/
private static String[] findCallingClassAndMethod()
{
StackTraceElement[] ste = new Throwable().getStackTrace();
for (int i = 0, len = ste.length; i < len; ++i)
{
StackTraceElement check = ste[i];
String cn = check.getClassName();
if (cn != null && !cn.startsWith("com.mchange.v2.log.jdk14logging") && !cn.startsWith("com.mchange.sc.v1.log")) //last one is the Scala wrapper to the library
return new String[] { check.getClassName(), check.getMethodName() };
}
return UNKNOWN_ARRAY;
}
private final static class Jdk14MLogger implements MLogger
{
final Logger logger;
final String name;
final ClassAndMethodFinder cmFinder;
Jdk14MLogger( Logger logger )
{
this.logger = logger;
//System.err.println("LOGGER: " + this.logger);
this.name = logger.getName();
if ( suppress_stack_walk == true )
{
this.cmFinder = new ClassAndMethodFinder()
{
String[] fakedClassAndMethod = new String[]{ name, "" };
public String[] find() { return fakedClassAndMethod; }
};
}
else
{
this.cmFinder = new ClassAndMethodFinder()
{
public String[] find() { return findCallingClassAndMethod(); }
};
}
}
interface ClassAndMethodFinder
{
String[] find();
}
private static Level level(MLevel lvl)
{ return (Level) lvl.asJdk14Level(); }
public ResourceBundle getResourceBundle()
{ return logger.getResourceBundle(); }
public String getResourceBundleName()
{ return logger.getResourceBundleName(); }
public void setFilter(Object java14Filter) throws SecurityException
{
if (! (java14Filter instanceof Filter))
throw new IllegalArgumentException("MLogger.setFilter( ... ) requires a java.util.logging.Filter. " +
"This is not enforced by the compiler only to permit building under jdk 1.3");
logger.setFilter( (Filter) java14Filter );
}
public Object getFilter()
{ return logger.getFilter(); }
public void log(MLevel l, String msg)
{
if (! logger.isLoggable( level(l) )) return;
String[] sa = cmFinder.find();
logger.logp( level(l), sa[0], sa[1], msg );
}
public void log(MLevel l, String msg, Object param)
{
if (! logger.isLoggable( level(l) )) return;
String[] sa = cmFinder.find();
logger.logp( level(l), sa[0], sa[1], msg, param );
}
public void log(MLevel l,String msg, Object[] params)
{
if (! logger.isLoggable( level(l) )) return;
String[] sa = cmFinder.find();
logger.logp( level(l), sa[0], sa[1], msg, params );
}
public void log(MLevel l, String msg, Throwable t)
{
if (! logger.isLoggable( level(l) )) return;
String[] sa = cmFinder.find();
logger.logp( level(l), sa[0], sa[1], msg, t );
}
public void logp(MLevel l, String srcClass, String srcMeth, String msg)
{
if (! logger.isLoggable( level(l) )) return;
if (srcClass == null && srcMeth == null)
{
String[] sa = cmFinder.find();
srcClass = sa[0];
srcMeth = sa[1];
}
logger.logp( level(l), srcClass, srcMeth, msg );
}
public void logp(MLevel l, String srcClass, String srcMeth, String msg, Object param)
{
if (! logger.isLoggable( level(l) )) return;
if (srcClass == null && srcMeth == null)
{
String[] sa = cmFinder.find();
srcClass = sa[0];
srcMeth = sa[1];
}
logger.logp( level(l), srcClass, srcMeth, msg, param );
}
public void logp(MLevel l, String srcClass, String srcMeth, String msg, Object[] params)
{
if (! logger.isLoggable( level(l) )) return;
if (srcClass == null && srcMeth == null)
{
String[] sa = cmFinder.find();
srcClass = sa[0];
srcMeth = sa[1];
}
logger.logp( level(l), srcClass, srcMeth, msg, params );
}
public void logp(MLevel l, String srcClass, String srcMeth, String msg, Throwable t)
{
if (! logger.isLoggable( level(l) )) return;
if (srcClass == null && srcMeth == null)
{
String[] sa = cmFinder.find();
srcClass = sa[0];
srcMeth = sa[1];
}
logger.logp( level(l), srcClass, srcMeth, msg, t );
}
public void logrb(MLevel l, String srcClass, String srcMeth, String rb, String msg)
{
if (! logger.isLoggable( level(l) )) return;
if (srcClass == null && srcMeth == null)
{
String[] sa = cmFinder.find();
srcClass = sa[0];
srcMeth = sa[1];
}
logger.logrb( level(l), srcClass, srcMeth, rb, msg );
}
public void logrb(MLevel l, String srcClass, String srcMeth, String rb, String msg, Object param)
{
if (! logger.isLoggable( level(l) )) return;
if (srcClass == null && srcMeth == null)
{
String[] sa = cmFinder.find();
srcClass = sa[0];
srcMeth = sa[1];
}
logger.logrb( level(l), srcClass, srcMeth, rb, msg, param );
}
public void logrb(MLevel l, String srcClass, String srcMeth, String rb, String msg, Object[] params)
{
if (! logger.isLoggable( level(l) )) return;
if (srcClass == null && srcMeth == null)
{
String[] sa = cmFinder.find();
srcClass = sa[0];
srcMeth = sa[1];
}
logger.logrb( level(l), srcClass, srcMeth, rb, msg, params );
}
public void logrb(MLevel l, String srcClass, String srcMeth, String rb, String msg, Throwable t)
{
if (! logger.isLoggable( level(l) )) return;
if (srcClass == null && srcMeth == null)
{
String[] sa = cmFinder.find();
srcClass = sa[0];
srcMeth = sa[1];
}
logger.logrb( level(l), srcClass, srcMeth, rb, msg, t );
}
public void entering(String srcClass, String srcMeth)
{
if (! logger.isLoggable( Level.FINER )) return;
logger.entering( srcClass, srcMeth );
}
public void entering(String srcClass, String srcMeth, Object param)
{
if (! logger.isLoggable( Level.FINER )) return;
logger.entering( srcClass, srcMeth, param );
}
public void entering(String srcClass, String srcMeth, Object params[])
{
if (! logger.isLoggable( Level.FINER )) return;
logger.entering( srcClass, srcMeth, params );
}
public void exiting(String srcClass, String srcMeth)
{
if (! logger.isLoggable( Level.FINER )) return;
logger.exiting( srcClass, srcMeth );
}
public void exiting(String srcClass, String srcMeth, Object result)
{
if (! logger.isLoggable( Level.FINER )) return;
logger.exiting( srcClass, srcMeth, result );
}
public void throwing(String srcClass, String srcMeth, Throwable t)
{
if (! logger.isLoggable( Level.FINER )) return;
logger.throwing( srcClass, srcMeth, t );
}
public void severe(String msg)
{
if (! logger.isLoggable( Level.SEVERE )) return;
String[] sa = cmFinder.find();
logger.logp( Level.SEVERE, sa[0], sa[1], msg );
}
public void warning(String msg)
{
if (! logger.isLoggable( Level.WARNING )) return;
String[] sa = cmFinder.find();
logger.logp( Level.WARNING, sa[0], sa[1], msg );
}
public void info(String msg)
{
if (! logger.isLoggable( Level.INFO )) return;
String[] sa = cmFinder.find();
logger.logp( Level.INFO, sa[0], sa[1], msg );
}
public void config(String msg)
{
if (! logger.isLoggable( Level.CONFIG )) return;
String[] sa = cmFinder.find();
logger.logp( Level.CONFIG, sa[0], sa[1], msg );
}
public void fine(String msg)
{
if (! logger.isLoggable( Level.FINE )) return;
String[] sa = cmFinder.find();
logger.logp( Level.FINE, sa[0], sa[1], msg );
}
public void finer(String msg)
{
if (! logger.isLoggable( Level.FINER )) return;
String[] sa = cmFinder.find();
logger.logp( Level.FINER, sa[0], sa[1], msg );
}
public void finest(String msg)
{
if (! logger.isLoggable( Level.FINEST )) return;
String[] sa = cmFinder.find();
logger.logp( Level.FINEST, sa[0], sa[1], msg );
}
public void setLevel(MLevel l) throws SecurityException
{ logger.setLevel( level(l) ); }
public MLevel getLevel()
{ return MLevel.fromIntValue( logger.getLevel().intValue() ); }
public boolean isLoggable(MLevel l)
{ return logger.isLoggable( level(l) ); }
public String getName()
{ return name; }
public void addHandler(Object h) throws SecurityException
{
if (! (h instanceof Handler))
throw new IllegalArgumentException("MLogger.addHandler( ... ) requires a java.util.logging.Handler. " +
"This is not enforced by the compiler only to permit building under jdk 1.3");
logger.addHandler( (Handler) h );
}
public void removeHandler(Object h) throws SecurityException
{
if (! (h instanceof Handler))
throw new IllegalArgumentException("MLogger.removeHandler( ... ) requires a java.util.logging.Handler. " +
"This is not enforced by the compiler only to permit building under jdk 1.3");
logger.removeHandler( (Handler) h );
}
public Object[] getHandlers()
{ return logger.getHandlers(); }
public void setUseParentHandlers(boolean uph)
{ logger.setUseParentHandlers( uph ); }
public boolean getUseParentHandlers()
{ return logger.getUseParentHandlers(); }
}
}
