| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.myfaces.extensions.validator.core.renderkit; |
| |
| import org.apache.myfaces.extensions.validator.internal.UsageCategory; |
| import org.apache.myfaces.extensions.validator.internal.UsageInformation; |
| import org.apache.myfaces.extensions.validator.core.ExtValCoreConfiguration; |
| |
| import javax.faces.context.FacesContext; |
| import javax.faces.render.Renderer; |
| import javax.faces.component.UIComponent; |
| import javax.faces.convert.ConverterException; |
| import java.io.IOException; |
| import java.lang.reflect.Constructor; |
| import java.util.logging.Logger; |
| |
| /** |
| * to support a custom proxy |
| * |
| * @author Gerhard Petracek |
| * @since 1.x.1 |
| */ |
| @UsageInformation(UsageCategory.INTERNAL) |
| class ExtValLazyRendererProxy extends Renderer implements RendererProxy |
| { |
| protected final Logger logger = Logger.getLogger(getClass().getName()); |
| |
| private Renderer wrapped; |
| |
| public ExtValLazyRendererProxy(Renderer renderer) |
| { |
| this.wrapped = renderer; |
| |
| logger.finest("simple proxy created for " + renderer.getClass().getName()); |
| } |
| |
| @Override |
| public void decode(FacesContext facesContext, UIComponent uiComponent) |
| { |
| getLazyRenderer().decode(facesContext, uiComponent); |
| } |
| |
| @Override |
| public void encodeBegin(FacesContext facesContext, UIComponent uiComponent) |
| throws IOException |
| { |
| getLazyRenderer().encodeBegin(facesContext, uiComponent); |
| } |
| |
| @Override |
| public void encodeChildren(FacesContext facesContext, UIComponent uiComponent) |
| throws IOException |
| { |
| getLazyRenderer().encodeChildren(facesContext, uiComponent); |
| } |
| |
| @Override |
| public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) |
| throws IOException |
| { |
| getLazyRenderer().encodeEnd(facesContext, uiComponent); |
| } |
| |
| @Override |
| public String convertClientId(FacesContext facesContext, String s) |
| { |
| return getLazyRenderer().convertClientId(facesContext, s); |
| } |
| |
| @Override |
| public boolean getRendersChildren() |
| { |
| return getLazyRenderer().getRendersChildren(); |
| } |
| |
| public Object getCachedConvertedValue(FacesContext facesContext, UIComponent uiComponent, Object o) |
| throws ConverterException |
| { |
| Renderer renderer = getLazyRenderer(); |
| if(renderer instanceof RendererProxy) |
| { |
| return ((RendererProxy)getLazyRenderer()).getCachedConvertedValue(facesContext, uiComponent, o); |
| } |
| |
| //by default there is no proxy - so we use a local cache |
| if(ConvertedValueCache.isCachedValueAvailable()) |
| { |
| return ConvertedValueCache.getCachedValue(); |
| } |
| |
| Object result = renderer.getConvertedValue(facesContext, uiComponent, o); |
| ConvertedValueCache.setCachedValue(result); |
| return result; |
| } |
| |
| @Override |
| public Object getConvertedValue(FacesContext facesContext, UIComponent uiComponent, Object o) |
| throws ConverterException |
| { |
| if(getLazyRenderer() == this.wrapped) |
| { |
| if(ConvertedValueCache.isCachedValueAvailable()) |
| { |
| return ConvertedValueCache.getCachedValue(); |
| } |
| } |
| |
| return getLazyRenderer().getConvertedValue(facesContext, uiComponent, o); |
| } |
| |
| private Renderer getLazyRenderer() |
| { |
| Class<? extends Renderer> targetClass = ExtValCoreConfiguration.get().rendererProxy(); |
| |
| if(targetClass != null) |
| { |
| Class[] argClasses = new Class[1]; |
| argClasses[0] = Renderer.class; |
| |
| try |
| { |
| Constructor constructor = targetClass.getConstructor(argClasses); |
| return (Renderer)constructor.newInstance(this.wrapped); |
| } |
| catch (Exception e) |
| { |
| logger.warning("couldn't create: " + targetClass.getName()); |
| |
| return this.wrapped; |
| } |
| } |
| else |
| { |
| return this.wrapped; |
| } |
| } |
| |
| public Renderer getWrappedRenderer() |
| { |
| return this.wrapped; |
| } |
| |
| void resetConvertedValueCache() |
| { |
| ConvertedValueCache.reset(); |
| } |
| } |