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com.mchange.v2.log.FallbackMLog Maven / Gradle / Ivy
/*
* Distributed as part of mchange-commons-java 0.2.11
*
* 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;
import java.text.*;
import java.util.*;
import java.util.logging.*;
import com.mchange.lang.ThrowableUtils;
public final class FallbackMLog extends MLog
{
final static MLevel DEFAULT_CUTOFF_LEVEL;
final static String SEP;
// MT: protected by class lock
static MLevel overrideCutoffLevel = null;
static
{
MLevel dflt = null;
String dfltName = MLogConfig.getProperty( "com.mchange.v2.log.FallbackMLog.DEFAULT_CUTOFF_LEVEL" );
if (dfltName != null)
dflt = MLevel.fromSeverity( dfltName );
if (dflt == null)
dflt = MLevel.INFO;
DEFAULT_CUTOFF_LEVEL = dflt;
SEP = System.getProperty( "line.separator" );
}
public static synchronized MLevel cutoffLevel()
{
if ( overrideCutoffLevel != null )
return overrideCutoffLevel;
else
return DEFAULT_CUTOFF_LEVEL;
}
public static synchronized void overrideCutoffLevel( MLevel level )
{ overrideCutoffLevel = level; }
MLogger logger = new FallbackMLogger();
public MLogger getMLogger(String name)
{ return logger; }
public MLogger getMLogger()
{ return logger; }
private final static class FallbackMLogger implements MLogger
{
private void formatrb(MLevel l, String srcClass, String srcMeth, String rbname, String msg, Object[] params, Throwable t)
{
ResourceBundle rb = ResourceBundle.getBundle( rbname );
if (msg != null && rb != null)
{
String check = rb.getString( msg );
if (check != null)
msg = check;
}
format( l, srcClass, srcMeth, msg, params, t);
}
private void format(MLevel l, String srcClass, String srcMeth, String msg, Object[] params, Throwable t)
{ System.err.println( formatString( l, srcClass, srcMeth, msg, params, t ) ); }
private String formatString(MLevel l, String srcClass, String srcMeth, String msg, Object[] params, Throwable t)
{
boolean add_parens = (srcMeth != null && ! srcMeth.endsWith(")"));
StringBuffer sb = new StringBuffer(256);
sb.append(l.getLineHeader());
sb.append(' ');
if (srcClass != null && srcMeth != null)
{
sb.append('[');
sb.append( srcClass );
sb.append( '.' );
sb.append( srcMeth );
if (add_parens)
sb.append("()");
sb.append( ']' );
}
else if (srcClass != null)
{
sb.append('[');
sb.append( srcClass );
sb.append( ']' );
}
else if (srcMeth != null)
{
sb.append('[');
sb.append( srcMeth );
if (add_parens)
sb.append("()");
sb.append( ']' );
}
if (msg == null)
{
if (params != null)
{
sb.append("params: ");
for (int i = 0, len = params.length; i < len; ++i)
{
if (i != 0) sb.append(", ");
sb.append( params[i] );
}
}
}
else
{
if (params == null)
sb.append( msg );
else
{
MessageFormat mfmt = new MessageFormat( msg );
sb.append( mfmt.format( params ) );
}
}
if (t != null)
{
sb.append( SEP );
sb.append( ThrowableUtils.extractStackTrace( t ) );
}
return sb.toString();
}
public ResourceBundle getResourceBundle()
{
//warn("Using logger " + this.getClass().getName() + ", which does not support ResourceBundles.");
return null;
}
public String getResourceBundleName()
{ return null; }
public void setFilter(Object java14Filter) throws SecurityException
{
warning("Using FallbackMLog -- Filters not supported!");
}
public Object getFilter()
{
return null;
}
public void log(MLevel l, String msg)
{
if ( isLoggable( l ) )
format( l, null, null, msg, null, null );
}
public void log(MLevel l, String msg, Object param)
{
if ( isLoggable( l ) )
format( l, null, null, msg, new Object[] { param }, null );
}
public void log(MLevel l,String msg, Object[] params)
{
if ( isLoggable( l ) )
format( l, null, null, msg, params, null );
}
public void log(MLevel l, String msg, Throwable t)
{
if ( isLoggable( l ) )
format( l, null, null, msg, null, t );
}
public void logp(MLevel l, String srcClass, String srcMeth, String msg)
{
if ( isLoggable( l ) )
format( l, srcClass, srcMeth, msg, null, null );
}
public void logp(MLevel l, String srcClass, String srcMeth, String msg, Object param)
{
if ( isLoggable( l ) )
format( l, srcClass, srcMeth, msg, new Object[] { param }, null );
}
public void logp(MLevel l, String srcClass, String srcMeth, String msg, Object[] params)
{
if ( isLoggable( l ) )
format( l, srcClass, srcMeth, msg, params, null );
}
public void logp(MLevel l, String srcClass, String srcMeth, String msg, Throwable t)
{
if ( isLoggable( l ) )
format( l, srcClass, srcMeth, msg, null, t );
}
public void logrb(MLevel l, String srcClass, String srcMeth, String rb, String msg)
{
if ( isLoggable( l ) )
formatrb( l, srcClass, srcMeth, rb, msg, null, null );
}
public void logrb(MLevel l, String srcClass, String srcMeth, String rb, String msg, Object param)
{
if ( isLoggable( l ) )
formatrb( l, srcClass, srcMeth, rb, msg, new Object[] { param }, null );
}
public void logrb(MLevel l, String srcClass, String srcMeth, String rb, String msg, Object[] params)
{
if ( isLoggable( l ) )
formatrb( l, srcClass, srcMeth, rb, msg, params, null );
}
public void logrb(MLevel l, String srcClass, String srcMeth, String rb, String msg, Throwable t)
{
if ( isLoggable( l ) )
formatrb( l, srcClass, srcMeth, rb, msg, null, t );
}
public void entering(String srcClass, String srcMeth)
{
if ( isLoggable( MLevel.FINER ) )
format(MLevel.FINER, srcClass, srcMeth, "Entering method.", null, null);
}
public void entering(String srcClass, String srcMeth, Object param)
{
if ( isLoggable( MLevel.FINER ) )
format(MLevel.FINER, srcClass, srcMeth, "Entering method with argument " + param, null, null);
}
public void entering(String srcClass, String srcMeth, Object[] params)
{
if ( isLoggable( MLevel.FINER ) )
{
if (params == null)
entering( srcClass, srcMeth );
else
{
StringBuffer sb = new StringBuffer(128);
sb.append("( ");
for (int i = 0, len = params.length; i < len; ++i)
{
if (i != 0) sb.append(", ");
sb.append( params[i] );
}
sb.append(" )");
format(MLevel.FINER, srcClass, srcMeth, "Entering method with arguments " + sb.toString(), null, null);
}
}
}
public void exiting(String srcClass, String srcMeth)
{
if ( isLoggable( MLevel.FINER ) )
format(MLevel.FINER, srcClass, srcMeth, "Exiting method.", null, null);
}
public void exiting(String srcClass, String srcMeth, Object result)
{
if ( isLoggable( MLevel.FINER ) )
format(MLevel.FINER, srcClass, srcMeth, "Exiting method with result " + result, null, null);
}
public void throwing(String srcClass, String srcMeth, Throwable t)
{
if ( isLoggable( MLevel.FINE ) )
format(MLevel.FINE, srcClass, srcMeth, "Throwing exception." , null, t);
}
public void severe(String msg)
{
if ( isLoggable( MLevel.SEVERE ) )
format(MLevel.SEVERE, null, null, msg, null, null);
}
public void warning(String msg)
{
if ( isLoggable( MLevel.WARNING ) )
format(MLevel.WARNING, null, null, msg, null, null);
}
public void info(String msg)
{
if ( isLoggable( MLevel.INFO ) )
format(MLevel.INFO, null, null, msg, null, null);
}
public void config(String msg)
{
if ( isLoggable( MLevel.CONFIG ) )
format(MLevel.CONFIG, null, null, msg, null, null);
}
public void fine(String msg)
{
if ( isLoggable( MLevel.FINE ) )
format(MLevel.FINE, null, null, msg, null, null);
}
public void finer(String msg)
{
if ( isLoggable( MLevel.FINER ) )
format(MLevel.FINER, null, null, msg, null, null);
}
public void finest(String msg)
{
if ( isLoggable( MLevel.FINEST ) )
format(MLevel.FINEST, null, null, msg, null, null);
}
public void setLevel(MLevel l) throws SecurityException
{ overrideCutoffLevel( l ); }
public synchronized MLevel getLevel()
{ return cutoffLevel(); }
public synchronized boolean isLoggable(MLevel l)
{ return (l.intValue() >= cutoffLevel().intValue()); }
public String getName()
{ return "global"; }
public void addHandler(Object h) throws SecurityException
{
warning("Using FallbackMLog -- Handlers not supported.");
}
public void removeHandler(Object h) throws SecurityException
{
warning("Using FallbackMLog -- Handlers not supported.");
}
public Object[] getHandlers()
{
warning("Using FallbackMLog -- Handlers not supported.");
return new Object[0];
}
public void setUseParentHandlers(boolean uph)
{
warning("Using FallbackMLog -- Handlers not supported.");
}
public boolean getUseParentHandlers()
{ return false; }
}
}
