| /* |
| * 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.scripting.jsf.annotation; |
| |
| |
| import org.apache.myfaces.extensions.scripting.jsf.annotation.purged.PurgedClientBehaviorRenderer; |
| |
| import javax.faces.FactoryFinder; |
| import javax.faces.context.FacesContext; |
| import javax.faces.render.FacesBehaviorRenderer; |
| import javax.faces.render.RenderKit; |
| import javax.faces.render.RenderKitFactory; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.logging.Level; |
| |
| /** |
| * @author Werner Punz (latest modification by $Author$) |
| * @version $Revision$ $Date$ |
| * <p/> |
| * Implementation listener for the FacesBehaviorRenderer annotation |
| */ |
| |
| public class BehaviorRendererImplementationListener extends MapEntityAnnotationScanner { |
| |
| private static final String PAR_RENDERERTYPE = "rendererType"; |
| private static final String PAR_RENDERKITID = "renderKitId"; |
| |
| Map<AnnotationEntry, String> _inverseIndex = new HashMap<AnnotationEntry, String>(); |
| |
| class AnnotationEntry { |
| String rendererType; |
| String renderKitId; |
| |
| AnnotationEntry(String rendererType, String renderKitId) { |
| this.rendererType = rendererType; |
| this.renderKitId = renderKitId; |
| } |
| |
| public boolean equals(Object incoming) { |
| if (!(incoming instanceof AnnotationEntry)) { |
| return false; |
| } |
| AnnotationEntry toCompare = (AnnotationEntry) incoming; |
| |
| if (incoming == null) { |
| return false; |
| } |
| |
| boolean firstEquals = compareValuePair(rendererType, toCompare.getRendererType()); |
| boolean secondEquals = compareValuePair(renderKitId, toCompare.getRenderKitId()); |
| |
| return firstEquals && secondEquals; |
| } |
| |
| @Override |
| public int hashCode() { |
| return (checkForNull(rendererType) + "_" + checkForNull(renderKitId)).hashCode(); //To change body of overridden methods use File | Settings | File Templates. |
| } |
| |
| private String checkForNull(String in) { |
| return (in == null) ? "" : in; |
| } |
| |
| protected boolean compareValuePair(Object val1, Object val2) { |
| boolean retVal = false; |
| if (val1 == null) { |
| if (val2 != null) retVal = false; |
| if (val2 == null) { |
| retVal = true; |
| } |
| } else { |
| retVal = val1.equals(val2); |
| } |
| return retVal; |
| } |
| |
| public String getRendererType() { |
| return rendererType; |
| } |
| |
| public String getRenderKitId() { |
| return renderKitId; |
| } |
| } |
| |
| public BehaviorRendererImplementationListener() { |
| super(); |
| } |
| |
| @Override |
| protected void addEntity(Class clazz, Map<String, Object> params) { |
| String value = (String) params.get(PAR_RENDERERTYPE); |
| String renderKitId = (String) params.get(PAR_RENDERKITID); |
| |
| AnnotationEntry entry = new AnnotationEntry(value, renderKitId); |
| _alreadyRegistered.put(clazz.getName(), entry); |
| _inverseIndex.put(entry, clazz.getName()); |
| |
| getApplication().addConverter(entry.getRendererType(), clazz.getName()); |
| } |
| |
| @Override |
| protected boolean hasToReregister(Map params, Class clazz) { |
| String value = (String) params.get(PAR_RENDERERTYPE); |
| String renderKitId = (String) params.get(PAR_RENDERKITID); |
| |
| AnnotationEntry entry = new AnnotationEntry(value, renderKitId); |
| |
| AnnotationEntry alreadyRegistered = (AnnotationEntry) _alreadyRegistered.get(clazz.getName()); |
| if (alreadyRegistered == null) { |
| return true; |
| } |
| |
| return alreadyRegistered.equals(entry); |
| } |
| |
| public boolean supportsAnnotation(String annotation) { |
| return annotation.equals(FacesBehaviorRenderer.class.getName()); |
| } |
| |
| public boolean supportsAnnotation(Class annotation) { |
| return annotation.equals(FacesBehaviorRenderer.class); |
| } |
| |
| |
| private RenderKitFactory getRenderKitFactory() { |
| return (RenderKitFactory) FactoryFinder.getFactory(FactoryFinder.RENDER_KIT_FACTORY); |
| } |
| |
| private RenderKit getRenderkit(String renderKitId) { |
| RenderKitFactory factory = getRenderKitFactory(); |
| RenderKit renderKit = factory.getRenderKit(FacesContext.getCurrentInstance(), renderKitId); |
| return renderKit; |
| } |
| |
| @Override |
| public void purge(String className) { |
| super.purge(className); |
| AnnotationEntry entry = (AnnotationEntry) _alreadyRegistered.remove(className); |
| if (entry == null) { |
| return; |
| } |
| |
| RenderKit renderKit = getRenderkit(entry.getRenderKitId()); |
| try { |
| String rendererClass = _inverseIndex.get(entry); |
| if (rendererClass != null && rendererClass.equals(className)) { |
| _inverseIndex.put(entry, PurgedClientBehaviorRenderer.class.getName()); |
| renderKit.addClientBehaviorRenderer(entry.getRendererType(), PurgedClientBehaviorRenderer.class.newInstance()); |
| } |
| } catch (InstantiationException e) { |
| _log.log(Level.SEVERE, "", e); |
| } catch (IllegalAccessException e) { |
| _log.log(Level.SEVERE, "", e); |
| } |
| } |
| |
| } |