| /* |
| * 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.util.LogUtils; |
| |
| 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.util.Map; |
| import java.util.HashMap; |
| |
| /** |
| * to avoid multiple calls of renderer methods within renderer interceptors (e.g. for encode, decode,...) |
| * |
| * @author Gerhard Petracek |
| * @since 1.x.1 |
| */ |
| @UsageInformation(UsageCategory.INTERNAL) |
| public class ExtValRendererProxy extends Renderer |
| { |
| private Renderer wrapped; |
| |
| public ExtValRendererProxy(Renderer renderer) |
| { |
| this.wrapped = renderer; |
| |
| LogUtils.trace("proxy created for " + renderer.getClass().getName(), getClass()); |
| } |
| |
| @Override |
| public void decode(FacesContext facesContext, UIComponent uiComponent) |
| { |
| RendererProxyEntry entry = getOrInitEntry(facesContext, uiComponent); |
| |
| if (!entry.isDecodeCalled()) |
| { |
| entry.setDecodeCalled(true); |
| wrapped.decode(facesContext, uiComponent); |
| } |
| } |
| |
| @Override |
| public void encodeBegin(FacesContext facesContext, UIComponent uiComponent) |
| throws IOException |
| { |
| RendererProxyEntry entry = getOrInitEntry(facesContext, uiComponent); |
| |
| if (!entry.isEncodeBeginCalled()) |
| { |
| entry.setEncodeBeginCalled(true); |
| wrapped.encodeBegin(facesContext, uiComponent); |
| } |
| } |
| |
| @Override |
| public void encodeChildren(FacesContext facesContext, UIComponent uiComponent) |
| throws IOException |
| { |
| RendererProxyEntry entry = getOrInitEntry(facesContext, uiComponent); |
| |
| if (!entry.isEncodeChildrenCalled()) |
| { |
| entry.setEncodeChildrenCalled(true); |
| wrapped.encodeChildren(facesContext, uiComponent); |
| } |
| } |
| |
| @Override |
| public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) |
| throws IOException |
| { |
| RendererProxyEntry entry = getOrInitEntry(facesContext, uiComponent); |
| |
| if (!entry.isEncodeEndCalled()) |
| { |
| entry.setEncodeEndCalled(true); |
| wrapped.encodeEnd(facesContext, uiComponent); |
| } |
| } |
| |
| @Override |
| public String convertClientId(FacesContext facesContext, String s) |
| { |
| return wrapped.convertClientId(facesContext, s); |
| } |
| |
| @Override |
| public boolean getRendersChildren() |
| { |
| return wrapped.getRendersChildren(); |
| } |
| |
| @Override |
| public Object getConvertedValue(FacesContext facesContext, UIComponent uiComponent, Object o) |
| throws ConverterException |
| { |
| RendererProxyEntry entry = getOrInitEntry(facesContext, uiComponent); |
| |
| if (entry.getConvertedValue() == null) |
| { |
| entry.setConvertedValue(wrapped.getConvertedValue(facesContext, uiComponent, o)); |
| } |
| return entry.getConvertedValue(); |
| } |
| |
| private RendererProxyEntry getOrInitEntry(FacesContext facesContext, UIComponent uiComponent) |
| { |
| String clientId = uiComponent.getClientId(facesContext); |
| |
| if (!getOrInitComponentProxyMapping().containsKey(clientId)) |
| { |
| getOrInitComponentProxyMapping().put(clientId, new RendererProxyEntry()); |
| } |
| return getOrInitComponentProxyMapping().get(clientId); |
| } |
| |
| private static final String PROXY_STORAGE_NAME = ExtValRendererProxy.class.getName() + ":STORAGE"; |
| |
| private Map<String, RendererProxyEntry> getOrInitComponentProxyMapping() |
| { |
| Map requestMap = FacesContext.getCurrentInstance().getExternalContext().getRequestMap(); |
| |
| if(!requestMap.containsKey(PROXY_STORAGE_NAME)) |
| { |
| requestMap.put(PROXY_STORAGE_NAME, new HashMap<String, Map<String, RendererProxyEntry>>()); |
| } |
| |
| Map<String, Map<String, RendererProxyEntry>> proxyStorage = |
| ((Map<String, Map<String, RendererProxyEntry>>)requestMap.get(PROXY_STORAGE_NAME)); |
| |
| String key = this.wrapped.getClass().getName(); |
| |
| if(!proxyStorage.containsKey(key)) |
| { |
| proxyStorage.put(key, new HashMap<String, RendererProxyEntry>()); |
| } |
| |
| return proxyStorage.get(key); |
| } |
| } |