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Show all versions of guiced-persistence-c3p0 Show documentation
Enables C3P0 with Hibernate connections in the GuicedPersistence provider
Requires JDK 8 and up
/*
* 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.util.*;
import java.lang.reflect.Method;
import com.mchange.v2.cfg.MLogConfigSource;
import com.mchange.v2.cfg.MultiPropertiesConfig;
import com.mchange.v2.cfg.DelayedLogItem;
import com.mchange.v2.cfg.MConfig;
public final class MLogConfig
{
// MT: all now mutable references, protected by class' lock
private static MultiPropertiesConfig CONFIG = null;
private static List BOOTSTRAP_LOG_ITEMS = null;
private static Method delayedDumpToLogger = null;
public synchronized static void refresh( MultiPropertiesConfig[] overrides, String overridesDescription )
{
String[] defaults = new String[] { "/com/mchange/v2/log/default-mchange-log.properties" };
String[] preempts = new String[] { "/mchange-log.properties", "/" };
List bli = new ArrayList();
MultiPropertiesConfig tmpCONFIG = MLogConfigSource.readVmConfig( defaults, preempts, bli );
boolean firstLoad = (CONFIG == null);
if ( overrides != null )
{
int olen = overrides.length;
MultiPropertiesConfig[] combineMe = new MultiPropertiesConfig[ olen + 1 ];
combineMe[0] = tmpCONFIG;
for ( int i = 0; i < olen; ++i )
combineMe[ i + 1 ] = overrides[i];
bli.add( new DelayedLogItem( DelayedLogItem.Level.INFO, (firstLoad ? "Loaded" : "Refreshed") + " MLog library log configuration, with overrides" + (overridesDescription == null ? "." : ": " + overridesDescription) ) );
CONFIG = MConfig.combine( combineMe );
}
else
{
if ( !firstLoad )
bli.add( new DelayedLogItem( DelayedLogItem.Level.INFO, "Refreshed MLog library log configuration, without overrides.") );
CONFIG = tmpCONFIG;
}
BOOTSTRAP_LOG_ITEMS = bli;
}
// should be called only from static synchronized methods
private static void ensureLoad()
{ if (CONFIG == null) refresh( null, null); }
// should be called only from static synchronized methods
private static void ensureDelayedDumpToLogger()
{
try
{
if ( delayedDumpToLogger == null )
{
Class mConfigClass = Class.forName( "com.mchange.v2.cfg.MConfig" );
Class delayedLogItemClass = Class.forName( "com.mchange.v2.cfg.DelayedLogItem" );
delayedDumpToLogger = mConfigClass.getMethod("dumpToLogger", new Class[] { delayedLogItemClass, MLogger.class } );
}
}
catch ( RuntimeException e )
{
e.printStackTrace();
throw e;
}
catch ( Exception e )
{
e.printStackTrace();
throw new RuntimeException( e );
}
}
public synchronized static String getProperty( String key )
{
ensureLoad();
return CONFIG.getProperty( key );
}
// should not be called during static init to avoid cyclic dependency issues
public synchronized static void logDelayedItems( MLogger logger )
{
ensureLoad();
ensureDelayedDumpToLogger();
List items = new ArrayList();
items.addAll( BOOTSTRAP_LOG_ITEMS );
items.addAll( CONFIG.getDelayedLogItems() );
Set uniquerizer = new HashSet();
uniquerizer.addAll( items );
for( Iterator ii = items.iterator(); ii.hasNext(); )
{
Object item = ii.next();
if (uniquerizer.contains( item ) )
{
uniquerizer.remove( item );
try { delayedDumpToLogger.invoke( null, new Object[] { item, logger } ); }
catch ( Exception e )
{
// bad, bad, shouldn't happen
e.printStackTrace();
throw new Error(e);
}
}
}
}
public synchronized static String dump()
{ return CONFIG.toString(); }
private MLogConfig()
{}
}