/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.designer.core.editor.report;
import java.util.HashMap;
import java.util.Iterator;
import org.pentaho.reporting.designer.core.ReportDesignerBoot;
import org.pentaho.reporting.libraries.base.config.Configuration;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public class ReportElementEditorRegistry
{
private static final String PREFIX = "org.pentaho.reporting.designer.core.report-element-editor.";
private static final String DEFAULTEDITOR = "org.pentaho.reporting.designer.core.report-element-editor";
private static ReportElementEditorRegistry instance;
private HashMap<String, ReportElementEditor> factories;
public static synchronized ReportElementEditorRegistry getInstance()
{
if (instance == null)
{
instance = new ReportElementEditorRegistry();
instance.register();
}
return instance;
}
public ReportElementEditorRegistry()
{
factories = new HashMap();
}
private void register()
{
final Configuration configuration = ReportDesignerBoot.getInstance().getGlobalConfig();
final Iterator keys = configuration.findPropertyKeys(PREFIX);
while (keys.hasNext())
{
final String key = (String) keys.next();
final String elementType = key.substring(PREFIX.length());
final String className = configuration.getConfigProperty(key);
final ReportElementEditor plugin = (ReportElementEditor)
ObjectUtilities.loadAndInstantiate(className, ReportElementEditorRegistry.class, ReportElementEditor.class);
if (plugin != null)
{
addPlugin(elementType, plugin);
}
}
final String className = configuration.getConfigProperty(DEFAULTEDITOR);
final ReportElementEditor plugin = (ReportElementEditor)
ObjectUtilities.loadAndInstantiate(className, ReportElementEditorRegistry.class, ReportElementEditor.class);
if (plugin != null)
{
addPlugin(null, plugin);
}
}
public void addPlugin(final String elementType, final ReportElementEditor plugin)
{
if (plugin == null)
{
throw new NullPointerException();
}
factories.put(elementType, plugin);
}
public String[] getPluginKeys()
{
return factories.keySet().toArray(new String[factories.size()]);
}
public ReportElementEditor getPlugin(final String elementType)
{
return factories.get(elementType);
}
}