/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library 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.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.ajax4jsf.event;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
import javax.faces.FacesException;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
import org.ajax4jsf.Messages;
import org.ajax4jsf.context.AjaxContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.richfaces.skin.SkinFactory;
/**
* Listener for act before Render phase to set RenderKit Id for current skin.
*
* @author shura (latest modification by $Author: alexsmirnov $)
* @version $Revision: 1.1.2.3 $ $Date: 2007/02/06 16:23:19 $
*
*/
public class AjaxPhaseListener implements PhaseListener {
/**
*
*/
private static final long serialVersionUID = -4087936963051339868L;
public static final String VIEW_BEAN_PREFIX = "org.ajax4jsf.viewbean:";
public static final String VIEW_STATE_SAVED_PARAM = "org.ajax4jsf.VIEW_STATE_SAVED";
private static final Log log = LogFactory.getLog(AjaxPhaseListener.class);
public static final String AJAX_BEAN_PREFIX = "org.ajax4jsf.ajaxviewbean:";
/*
* (non-Javadoc)
*
* @see javax.faces.event.PhaseListener#afterPhase(javax.faces.event.PhaseEvent)
*/
public void afterPhase(PhaseEvent event) {
PhaseId phaseId = event.getPhaseId();
if (log.isDebugEnabled()) {
log.debug("Process after phase " + phaseId.toString());
}
FacesContext context = event.getFacesContext();
Map requestMap = context.getExternalContext().getRequestMap();
AjaxContext ajaxContext = AjaxContext.getCurrentInstance(context);
if (phaseId == PhaseId.RENDER_RESPONSE) {
try {
if (ajaxContext.isAjaxRequest()) {
// JSF RI 1.1 hack - view state not saved in <f:view> tag.
if (null == requestMap.get(VIEW_STATE_SAVED_PARAM)) {
ajaxContext.saveViewState(context);
}
}
} catch (IOException e) {
throw new FacesException(e);
} finally {
ajaxContext.release();
}
// ajaxContext.processHeadResources(context);
} else if (phaseId == PhaseId.RESTORE_VIEW) {
UIViewRoot viewRoot = context.getViewRoot();
if (null != viewRoot) {
boolean isAjax = ajaxContext.isAjaxRequest();
Map attributes = viewRoot.getAttributes();
for (Iterator it = attributes.keySet().iterator(); it.hasNext();) {
Object key = it.next();
if (key instanceof String) {
String stringKey = (String) key;
if (stringKey.startsWith(VIEW_BEAN_PREFIX)) {
requestMap.put(stringKey.substring(VIEW_BEAN_PREFIX
.length()), attributes.get(key));
} else if (isAjax
&& stringKey.startsWith(AJAX_BEAN_PREFIX)) {
requestMap.put(stringKey.substring(AJAX_BEAN_PREFIX
.length()), attributes.get(key));
}
}
}
}
}
if(context.getResponseComplete()){
ajaxContext.release();
}
}
/*
* (non-Javadoc)
*
* @see javax.faces.event.PhaseListener#beforePhase(javax.faces.event.PhaseEvent)
*/
public void beforePhase(PhaseEvent event) {
PhaseId phaseId = event.getPhaseId();
if (log.isDebugEnabled()) {
log.debug("Process before phase " + phaseId.toString());
}
FacesContext context = event.getFacesContext();
if (phaseId == PhaseId.RENDER_RESPONSE) {
// Clear ViewId replacement, to avoid incorrect rendering of forms
// URI.
AjaxContext.getCurrentInstance(context).setViewIdHolder(null);
UIViewRoot root = context.getViewRoot();
if (null != root) {
log.debug(Messages.getMessage(
Messages.ENTER_BEFORE_RENDER_VIEW_PHASE, root.getViewId(),
root.getRenderKitId()));
// TODO - create special skin-config.xml configuration.
String renderKitId = null;
try {
renderKitId = SkinFactory.getInstance().getSkin(context)
.getRenderKitId(context);
} catch (Exception e) {
log.error("Exception on get current Skin ", e);
}
if (null != renderKitId) {
log.debug(Messages.getMessage(Messages.SET_RENDER_KIT_ID_INFO,
renderKitId));
root.setRenderKitId(renderKitId);
}
} } else if (phaseId == PhaseId.RESTORE_VIEW) {
}
}
/*
* (non-Javadoc)
*
* @see javax.faces.event.PhaseListener#getPhaseId()
*/
public PhaseId getPhaseId() {
return PhaseId.ANY_PHASE;
}
protected boolean isValueReference(String value) {
if (value == null)
throw new NullPointerException("value");
int start = value.indexOf("#{");
if (start < 0)
return false;
int end = value.lastIndexOf('}');
return (end >= 0 && start < end);
}
}