/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This 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 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. 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.portal.pom.spi.portlet;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.gatein.mop.spi.content.ContentProvider;
import org.gatein.mop.spi.content.StateContainer;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
* @version $Revision$
*/
public class PortletContentProvider implements ContentProvider<Portlet, PortletState> {
public PortletContentProvider() {
}
public Portlet combine(List<Portlet> states) {
Map<String, Preference> entries = new HashMap<String, Preference>();
//
for (Portlet preferences : states) {
for (Preference preference : preferences) {
Preference previous = entries.get(preference.getName());
if (previous == null || !previous.isReadOnly()) {
entries.put(preference.getName(), preference);
}
}
}
//
return new Portlet(entries);
}
public void setState(StateContainer<PortletState> container, Portlet state) {
PortletState prefs = container.getState();
//
if (prefs != null) {
if (state == null) {
container.setState(null);
} else {
prefs.setPayload(state);
}
} else {
if (state != null) {
prefs = container.create();
prefs.setPayload(state);
}
}
}
public Portlet getState(StateContainer<PortletState> container) {
PortletState prefs = container.getState();
if (prefs != null) {
return prefs.getPayload();
} else {
return null;
}
}
public Class<Portlet> getExternalType() {
return Portlet.class;
}
public Class<PortletState> getInternalType() {
return PortletState.class;
}
}