| /* |
| * 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.interceptor.RendererInterceptor; |
| import org.apache.myfaces.extensions.validator.core.ExtValContext; |
| import org.apache.myfaces.extensions.validator.core.renderkit.exception.SkipBeforeInterceptorsException; |
| import org.apache.myfaces.extensions.validator.core.renderkit.exception.SkipAfterInterceptorsException; |
| import org.apache.myfaces.extensions.validator.core.renderkit.exception.SkipRendererDelegationException; |
| import org.apache.myfaces.extensions.validator.util.ClassUtils; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.commons.logging.Log; |
| |
| import javax.faces.component.UIComponent; |
| import javax.faces.context.FacesContext; |
| import javax.faces.convert.ConverterException; |
| import javax.faces.render.Renderer; |
| import java.io.IOException; |
| import java.lang.reflect.Constructor; |
| |
| /** |
| * Default approach to avoid proxies for converters and the adapter fallback. |
| * It requires that components delegate getConvertedValue to a renderer.<br/> |
| * If it isn't the case for your component lib use: |
| * org.apache.myfaces.extensions.validator.core.proxy.ExtValApplicationFactory<br/> |
| * and<br/> |
| * org.apache.myfaces.extensions.validator.core.proxy.ProxyMappingPhaseListener |
| * <p/> |
| * This wrapper will also implement client-side validation behaviour |
| * |
| * @author Gerhard Petracek |
| * @since 1.x.1 |
| */ |
| @UsageInformation(UsageCategory.INTERNAL) |
| public class ExtValRendererWrapper extends Renderer |
| { |
| protected final Log logger = LogFactory.getLog(getClass()); |
| |
| protected Renderer wrapped; |
| protected ExtValContext extValContext = ExtValContext.getContext(); |
| |
| public ExtValRendererWrapper(Renderer renderer) |
| { |
| String proxyClassName = (String)ExtValContext.getContext().getGlobalProperty(ExtValRendererProxy.KEY); |
| |
| if(proxyClassName == null) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("no extval renderer proxy configured"); |
| } |
| |
| this.wrapped = new ExtValLazyRendererProxy(renderer); |
| return; |
| } |
| |
| Class targetClass = ClassUtils.tryToLoadClassForName(proxyClassName); |
| |
| if(targetClass == null) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("no extval renderer proxy configured"); |
| } |
| |
| this.wrapped = new ExtValLazyRendererProxy(renderer); |
| return; |
| } |
| |
| Class[] argClasses = new Class[1]; |
| argClasses[0] = Renderer.class; |
| |
| try |
| { |
| Constructor constructor = targetClass.getConstructor(argClasses); |
| this.wrapped = (Renderer)constructor.newInstance(renderer); |
| } |
| catch (Throwable e) |
| { |
| if(logger.isWarnEnabled()) |
| { |
| logger.warn("no extval renderer proxy created for " + renderer.getClass().getName()); |
| } |
| } |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("extval renderer wrapper created for " + renderer.getClass().getName()); |
| } |
| } |
| |
| @Override |
| public final void decode(FacesContext facesContext, UIComponent uiComponent) |
| { |
| boolean delegateToWrappedRenderer = true; |
| |
| try |
| { |
| for(RendererInterceptor rendererInterceptor : extValContext.getRendererInterceptors()) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("start beforeDecode of " + rendererInterceptor.getClass().getName()); |
| } |
| |
| try |
| { |
| rendererInterceptor.beforeDecode(facesContext, uiComponent, this.wrapped); |
| } |
| catch (SkipRendererDelegationException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("decode delegation canceled", e); |
| } |
| |
| delegateToWrappedRenderer = false; |
| |
| if(e.isSkipOtherInterceptors()) |
| { |
| break; |
| } |
| } |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("beforeDecode of " + rendererInterceptor.getClass().getName() + " finished"); |
| } |
| } |
| } |
| catch(SkipBeforeInterceptorsException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("beforeDecode interceptors canceled", e); |
| } |
| } |
| |
| /* |
| * delegate |
| */ |
| if(delegateToWrappedRenderer) |
| { |
| wrapped.decode(facesContext, uiComponent); |
| } |
| |
| try |
| { |
| for(RendererInterceptor rendererInterceptor : extValContext.getRendererInterceptors()) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("start afterDecode of " + rendererInterceptor.getClass().getName()); |
| } |
| |
| rendererInterceptor.afterDecode(facesContext, uiComponent, this.wrapped); |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("afterDecode of " + rendererInterceptor.getClass().getName() + " finished"); |
| } |
| } |
| } |
| catch (SkipAfterInterceptorsException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("afterDecode interceptors canceled", e); |
| } |
| } |
| } |
| |
| @Override |
| public final void encodeBegin(FacesContext facesContext, UIComponent uiComponent) |
| throws IOException |
| { |
| boolean delegateToWrappedRenderer = true; |
| |
| try |
| { |
| for(RendererInterceptor rendererInterceptor : extValContext.getRendererInterceptors()) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("start beforeEncodeBegin of " + rendererInterceptor.getClass().getName()); |
| } |
| |
| try |
| { |
| rendererInterceptor.beforeEncodeBegin(facesContext, uiComponent, this.wrapped); |
| } |
| catch (SkipRendererDelegationException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("encodeBegin delegation canceled", e); |
| } |
| |
| delegateToWrappedRenderer = false; |
| |
| if(e.isSkipOtherInterceptors()) |
| { |
| break; |
| } |
| } |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("beforeEncodeBegin of " + rendererInterceptor.getClass().getName() + " finished"); |
| } |
| } |
| } |
| catch (SkipBeforeInterceptorsException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("beforeEncodeBegin interceptors canceled", e); |
| } |
| } |
| |
| /* |
| * delegate |
| */ |
| if(delegateToWrappedRenderer) |
| { |
| wrapped.encodeBegin(facesContext, uiComponent); |
| } |
| |
| try |
| { |
| for(RendererInterceptor rendererInterceptor : extValContext.getRendererInterceptors()) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("start afterEncodeBegin of " + rendererInterceptor.getClass().getName()); |
| } |
| |
| rendererInterceptor.afterEncodeBegin(facesContext, uiComponent, this.wrapped); |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("afterEncodeBegin of " + rendererInterceptor.getClass().getName() + " finished"); |
| } |
| } |
| } |
| catch (SkipAfterInterceptorsException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("afterEncodeBegin interceptors canceled", e); |
| } |
| } |
| } |
| |
| @Override |
| public final void encodeChildren(FacesContext facesContext, UIComponent uiComponent) |
| throws IOException |
| { |
| boolean delegateToWrappedRenderer = true; |
| |
| try |
| { |
| for(RendererInterceptor rendererInterceptor : extValContext.getRendererInterceptors()) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("start beforeEncodeChildren of " + rendererInterceptor.getClass().getName()); |
| } |
| |
| try |
| { |
| rendererInterceptor.beforeEncodeChildren(facesContext, uiComponent, this.wrapped); |
| } |
| catch (SkipRendererDelegationException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("encodeChildren delegation canceled", e); |
| } |
| |
| delegateToWrappedRenderer = false; |
| |
| if(e.isSkipOtherInterceptors()) |
| { |
| break; |
| } |
| } |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("beforeEncodeChildren of " + |
| rendererInterceptor.getClass().getName() + " finished"); |
| } |
| } |
| } |
| catch (SkipBeforeInterceptorsException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("beforeEncodeChildren interceptors canceled", e); |
| } |
| } |
| |
| /* |
| * delegate |
| */ |
| if(delegateToWrappedRenderer) |
| { |
| wrapped.encodeChildren(facesContext, uiComponent); |
| } |
| |
| try |
| { |
| for(RendererInterceptor rendererInterceptor : extValContext.getRendererInterceptors()) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("start afterEncodeChildren of " + rendererInterceptor.getClass().getName()); |
| } |
| |
| rendererInterceptor.afterEncodeChildren(facesContext, uiComponent, this.wrapped); |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("afterEncodeChildren of " + rendererInterceptor.getClass().getName() + " finished"); |
| } |
| } |
| } |
| catch (SkipAfterInterceptorsException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("afterEncodeChildren interceptors canceled", e); |
| } |
| } |
| } |
| |
| @Override |
| public final void encodeEnd(FacesContext facesContext, UIComponent uiComponent) |
| throws IOException |
| { |
| boolean delegateToWrappedRenderer = true; |
| |
| try |
| { |
| for(RendererInterceptor rendererInterceptor : extValContext.getRendererInterceptors()) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("start beforeEncodeEnd of " + rendererInterceptor.getClass().getName()); |
| } |
| |
| try |
| { |
| rendererInterceptor.beforeEncodeEnd(facesContext, uiComponent, this.wrapped); |
| } |
| catch (SkipRendererDelegationException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("encodeEnd delegation canceled", e); |
| } |
| |
| delegateToWrappedRenderer = false; |
| |
| if(e.isSkipOtherInterceptors()) |
| { |
| break; |
| } |
| } |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("beforeEncodeEnd of " + rendererInterceptor.getClass().getName() + " finished"); |
| } |
| } |
| } |
| catch (SkipBeforeInterceptorsException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("beforeEncodeEnd interceptors canceled", e); |
| } |
| } |
| |
| /* |
| * delegate |
| */ |
| if(delegateToWrappedRenderer) |
| { |
| wrapped.encodeEnd(facesContext, uiComponent); |
| } |
| |
| try |
| { |
| for(RendererInterceptor rendererInterceptor : extValContext.getRendererInterceptors()) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("start afterEncodeEnd of " + rendererInterceptor.getClass().getName()); |
| } |
| |
| rendererInterceptor.afterEncodeEnd(facesContext, uiComponent, this.wrapped); |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("afterEncodeEnd of " + rendererInterceptor.getClass().getName() + " finished"); |
| } |
| } |
| } |
| catch (SkipAfterInterceptorsException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("afterEncodeEnd interceptors canceled", e); |
| } |
| } |
| } |
| |
| @Override |
| public final String convertClientId(FacesContext facesContext, String s) |
| { |
| return wrapped.convertClientId(facesContext, s); |
| } |
| |
| @Override |
| public final boolean getRendersChildren() |
| { |
| return wrapped.getRendersChildren(); |
| } |
| |
| @Override |
| public final Object getConvertedValue(FacesContext facesContext, UIComponent uiComponent, Object o) |
| throws ConverterException |
| { |
| boolean delegateToWrappedRenderer = true; |
| Object convertedObject = null; |
| |
| try |
| { |
| for(RendererInterceptor rendererInterceptor : extValContext.getRendererInterceptors()) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("start beforeGetConvertedValue of " + rendererInterceptor.getClass().getName()); |
| } |
| |
| try |
| { |
| rendererInterceptor.beforeGetConvertedValue(facesContext, uiComponent, o, this.wrapped); |
| } |
| catch (SkipRendererDelegationException e) |
| { |
| convertedObject = e.getReturnValueOnException(convertedObject); |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("getConvertedValue delegation canceled", e); |
| } |
| |
| delegateToWrappedRenderer = false; |
| |
| if(e.isSkipOtherInterceptors()) |
| { |
| break; |
| } |
| } |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("beforeGetConvertedValue of " + |
| rendererInterceptor.getClass().getName() + " finished"); |
| } |
| } |
| } |
| catch (SkipBeforeInterceptorsException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("beforeGetConvertedValue interceptors canceled", e); |
| } |
| } |
| |
| /* |
| * delegate |
| */ |
| if(delegateToWrappedRenderer) |
| { |
| convertedObject = wrapped.getConvertedValue(facesContext, uiComponent, o); |
| } |
| |
| try |
| { |
| for(RendererInterceptor rendererInterceptor : extValContext.getRendererInterceptors()) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("start afterGetConvertedValue of " + rendererInterceptor.getClass().getName()); |
| } |
| |
| rendererInterceptor.afterGetConvertedValue(facesContext, uiComponent, o, this.wrapped); |
| |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("afterGetConvertedValue of " + rendererInterceptor.getClass().getName() + " finished"); |
| } |
| } |
| } |
| catch (SkipAfterInterceptorsException e) |
| { |
| if(logger.isTraceEnabled()) |
| { |
| logger.trace("afterGetConvertedValue interceptors canceled", e); |
| } |
| } |
| |
| return convertedObject; |
| } |
| } |