com.sun.faces.facelets.compiler.NamespaceHandler Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2005-2007 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.sun.faces.facelets.compiler;
import com.sun.faces.facelets.el.CompositeFunctionMapper;
import com.sun.faces.facelets.tag.TagLibrary;
import com.sun.faces.el.ELContextImpl;
import javax.el.FunctionMapper;
import javax.el.ELContext;
import javax.faces.component.UIComponent;
import javax.faces.view.facelets.FaceletContext;
import javax.faces.view.facelets.FaceletHandler;
import javax.faces.context.FacesContext;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.Map;
final class NamespaceHandler extends FunctionMapper implements FaceletHandler {
private final TagLibrary library;
private final Map ns;
private FaceletHandler next;
public NamespaceHandler(FaceletHandler next, TagLibrary library, Map ns) {
this.library = library;
this.ns = ns;
this.next = next;
}
public void apply(FaceletContext ctx, UIComponent parent)
throws IOException {
FunctionMapper orig = ctx.getFunctionMapper();
pushMapper(ctx.getFacesContext(), this);
ctx.setFunctionMapper(new CompositeFunctionMapper(this, orig));
try {
next.apply(ctx, parent);
} finally {
ctx.setFunctionMapper(orig);
}
}
public Method resolveFunction(String prefix, String localName) {
String uri = (String) this.ns.get(prefix);
if (uri != null) {
return this.library.createFunction(uri, localName);
}
return null;
}
// --------------------------------------------------------- Private Methods
private void pushMapper(FacesContext ctx, FunctionMapper mapper) {
ELContext elContext = ctx.getELContext();
if (elContext instanceof ELContextImpl) {
((ELContextImpl) elContext).setFunctionMapper(mapper);
}
}
}