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/**
* ===========================================
* LibLayout : a free Java layouting library
* ===========================================
*
* Project Info: http://reporting.pentaho.org/liblayout/
*
* (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library 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.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: CounterStyleFactory.java 6489 2008-11-28 14:53:40Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.layouter.counters;
import java.util.HashMap;
import java.util.Iterator;
import org.jfree.layouting.LibLayoutBoot;
import org.jfree.layouting.layouter.counters.numeric.DecimalCounterStyle;
import org.pentaho.reporting.libraries.base.config.Configuration;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
public class CounterStyleFactory
{
private static final CounterStyle DEFAULTCOUNTER = new DecimalCounterStyle();
private static CounterStyleFactory factory;
public static final String PREFIX = "org.jfree.layouting.numbering.";
public static synchronized CounterStyleFactory getInstance ()
{
if (factory == null)
{
factory = new CounterStyleFactory();
factory.registerDefaults();
}
return factory;
}
private HashMap knownCounters;
private CounterStyleFactory ()
{
knownCounters = new HashMap();
}
public void registerDefaults ()
{
final Configuration config = LibLayoutBoot.getInstance().getGlobalConfig();
final Iterator it = config.findPropertyKeys(PREFIX);
while (it.hasNext())
{
final String key = (String) it.next();
final String counterClass = config.getConfigProperty(key);
if (counterClass == null)
{
continue;
}
final Object o = ObjectUtilities.loadAndInstantiate
(counterClass, CounterStyleFactory.class, CounterStyle.class);
if (o instanceof CounterStyle)
{
final String name = key.substring(PREFIX.length());
knownCounters.put (name, o);
}
}
}
public CounterStyle getCounterStyle (final String name)
{
final CounterStyle cs = (CounterStyle) knownCounters.get(name);
if (cs != null)
{
return cs;
}
return DEFAULTCOUNTER;
}
}
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