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EE4J Compatible Implementation for Jakarta Faces API
/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.faces.facelets.tag.ui;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.faces.util.FacesLogger;
import jakarta.faces.component.UIComponent;
import jakarta.faces.view.facelets.ComponentConfig;
import jakarta.faces.view.facelets.ComponentHandler;
import jakarta.faces.view.facelets.FaceletContext;
import jakarta.faces.view.facelets.MetaRuleset;
import jakarta.faces.view.facelets.Metadata;
import jakarta.faces.view.facelets.TagAttribute;
public class RepeatHandler extends ComponentHandler {
private static final Logger log = FacesLogger.FACELETS_COMPOSITION.getLogger();
public RepeatHandler(ComponentConfig config) {
super(config);
}
@Override
protected MetaRuleset createMetaRuleset(Class type) {
MetaRuleset meta = super.createMetaRuleset(type);
String myNamespace = tag.getNamespace();
if (!UILibrary.NAMESPACES.contains(myNamespace)) {
meta.add(new TagMetaData(type));
}
meta.alias("class", "styleClass");
return meta;
}
private class TagMetaData extends Metadata {
private final String[] attrs;
public TagMetaData(Class type) {
Set s = new HashSet();
TagAttribute[] ta = tag.getAttributes().getAll();
for (int i = 0; i < ta.length; i++) {
if ("class".equals(ta[i].getLocalName())) {
s.add("styleClass");
} else {
s.add(ta[i].getLocalName());
}
}
try {
PropertyDescriptor[] pd = Introspector.getBeanInfo(type).getPropertyDescriptors();
for (int i = 0; i < pd.length; i++) {
if (pd[i].getWriteMethod() != null) {
s.remove(pd[i].getName());
}
}
} catch (Exception e) {
if (log.isLoggable(Level.FINEST)) {
log.log(Level.FINEST, "Unable to get bean info", e);
}
}
attrs = (String[]) s.toArray(new String[s.size()]);
}
@Override
public void applyMetadata(FaceletContext ctx, Object instance) {
UIComponent c = (UIComponent) instance;
Map localAttrs = c.getAttributes();
localAttrs.put("alias.element", tag.getQName());
if (attrs.length > 0) {
localAttrs.put("alias.attributes", attrs);
}
}
}
}