/**
* Copyright (C) 2006 Orbeon, Inc.
*
* This program 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 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.
*
* The full text of the license is available at http://www.gnu.org/copyleft/lesser.html
*/
package org.orbeon.oxf.portlet.processor;
import org.orbeon.dom.Document;
import org.orbeon.dom.Element;
import org.orbeon.oxf.common.OXFException;
import org.orbeon.oxf.externalcontext.ExternalContext;
import org.orbeon.oxf.pipeline.api.PipelineContext;
import org.orbeon.oxf.processor.ProcessorImpl;
import org.orbeon.oxf.processor.ProcessorInputOutputInfo;
import javax.portlet.PortletPreferences;
import javax.portlet.PortletRequest;
import javax.portlet.ReadOnlyException;
import java.util.Iterator;
import java.util.List;
/**
* This processor stores the preferences for the current portlet.
*/
public class PortletPreferencesSerializer extends ProcessorImpl {
public static final String PORTLET_PREFERENCES_SERIALIZER_DATA_NAMESPACE_URI
= "http://orbeon.org/oxf/xml/portlet-preferences-serializer-data";
public PortletPreferencesSerializer() {
addInputInfo(new ProcessorInputOutputInfo(INPUT_DATA, PORTLET_PREFERENCES_SERIALIZER_DATA_NAMESPACE_URI));
}
public void start(PipelineContext pipelineContext) {
final ExternalContext externalContext = (ExternalContext) pipelineContext.getAttribute(PipelineContext.EXTERNAL_CONTEXT);
final PortletRequest portletRequest = (PortletRequest) externalContext.getRequest().getNativeRequest();
final PortletPreferences preferences = portletRequest.getPreferences();
final Document document = readInputAsOrbeonDom(pipelineContext, INPUT_DATA);
boolean modified = false;
for (Iterator i = document.getRootElement().elements().iterator(); i.hasNext();) {
final Element currentElement = (Element) i.next();
final String currentName = currentElement.element("name").getStringValue();
final List valueElements = currentElement.elements("value");
if (valueElements.size() > 0) {
// There are some values, extract them...
final String[] currentValuesArray = new String[valueElements.size()];
int valueIndex = 0;
for (Iterator j = valueElements.iterator(); j.hasNext(); valueIndex++) {
final Element currentValueElement = (Element) j.next();
final String currentValue = currentValueElement.getStringValue();
currentValuesArray[valueIndex] = currentValue;
}
try {
// ...and set the values
preferences.setValues(currentName, currentValuesArray);
modified = true;
} catch (ReadOnlyException e) {
throw new OXFException(e);
}
} else {
// If no value was passed, we take it that we want to reset the preference
try {
preferences.reset(currentName);
} catch (ReadOnlyException e) {
throw new OXFException(e);
}
}
}
if (modified) {
try {
preferences.store();
} catch (Exception e) {
throw new OXFException(e);
}
}
}
}