org.kalypso.metadoc.configuration.PublishingConfiguration.java Source code

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Here is the source code for org.kalypso.metadoc.configuration.PublishingConfiguration.java

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/*--------------- Kalypso-Header ------------------------------------------
    
 This file is part of kalypso.
 Copyright (C) 2004, 2005 by:
    
 Technical University Hamburg-Harburg (TUHH)
 Institute of River and coastal engineering
 Denickestr. 22
 21073 Hamburg, Germany
 http://www.tuhh.de/wb
    
 and
    
 Bjoernsen Consulting Engineers (BCE)
 Maria Trost 3
 56070 Koblenz, Germany
 http://www.bjoernsen.de
    
 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
    
 Contact:
    
 E-Mail:
 belger@bjoernsen.de
 schlienger@bjoernsen.de
 v.doemming@tuhh.de
    
 --------------------------------------------------------------------------*/

package org.kalypso.metadoc.configuration;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.collections.ExtendedProperties;

/**
 * Default implementation of the IPublishingConfiguration interface
 *
 * @author schlienger
 */
public class PublishingConfiguration extends ExtendedProperties {
    private final List<IConfigurationListener> m_listeners;

    public PublishingConfiguration() {
        m_listeners = new ArrayList<>(10);
    }

    private void fireConfigurationChanged(final String key) {
        final IConfigurationListener[] listeners = m_listeners
                .toArray(new IConfigurationListener[m_listeners.size()]);
        for (final IConfigurationListener listener : listeners) {
            try {
                listener.configurationChanged(this, key);
            } catch (final Throwable t) {
                t.printStackTrace();
            }
        }
    }

    public void addListener(final IConfigurationListener listener) {
        m_listeners.add(listener);
    }

    public void removeListener(final IConfigurationListener listener) {
        m_listeners.remove(listener);
    }

    @Override
    public synchronized void clear() {
        super.clear();

        fireConfigurationChanged(null);
    }

    @Override
    public synchronized Object put(final Object key, final Object value) {
        if (value == null)
            return null;

        final Object put = super.put(key, value);

        fireConfigurationChanged((String) key);

        return put;
    }

    @Override
    public synchronized Object remove(final Object key) {
        final Object remove = super.remove(key);

        fireConfigurationChanged((String) key);

        return remove;
    }
}