| /* |
| * 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.test.el; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import javax.el.ELContext; |
| import javax.el.ELException; |
| import javax.faces.context.FacesContext; |
| import javax.faces.el.EvaluationException; |
| import javax.faces.el.PropertyResolver; |
| |
| /** |
| * <p><code>ELResolver</code> implementation that wraps the legacy (JSF 1.1) |
| * <code>PropertyResolver</code> chain. See the JSF 1.2 Specification, section |
| * 5.6.1.6, for requirements implemented by this class.</p> |
| * |
| * @since 1.0.4 |
| */ |
| public class FacesPropertyResolverChainWrapper extends AbstractELResolver { |
| |
| |
| /** |
| * <p>Return the most general type this resolver accepts for the |
| * <code>property</code> argument.</p> |
| */ |
| public Class getCommonPropertyType(ELContext context, Object base) { |
| |
| if (base != null) { |
| return null; |
| } else { |
| return Object.class; |
| } |
| |
| } |
| |
| |
| /** |
| * <p>Return an <code>Iterator</code> over the attributes that this |
| * resolver knows how to deal with.</p> |
| * |
| * @param context <code>ELContext</code> for evaluating this value |
| * @param base Base object against which this evaluation occurs |
| */ |
| public Iterator getFeatureDescriptors(ELContext context, Object base) { |
| |
| return null; |
| |
| } |
| |
| |
| |
| /** |
| * <p>Evaluate with the legacy property resolver chain and return |
| * the value.</p> |
| * |
| * @param context <code>ELContext</code> for evaluating this value |
| * @param base Base object against which this evaluation occurs |
| * (must be null because we are evaluating a top level variable) |
| * @param property Property name to be accessed |
| */ |
| public Class getType(ELContext context, Object base, Object property) { |
| |
| if ((base == null) || (property == null)) { |
| return null; |
| } |
| |
| context.setPropertyResolved(true); |
| FacesContext fcontext = (FacesContext) context.getContext(FacesContext.class); |
| ELContext elContext = fcontext.getELContext(); |
| PropertyResolver pr = fcontext.getApplication().getPropertyResolver(); |
| |
| if ((base instanceof List) || base.getClass().isArray()) { |
| Integer index = (Integer) fcontext.getApplication().getExpressionFactory(). |
| coerceToType(property, Integer.class); |
| try { |
| return pr.getType(base, index.intValue()); |
| } catch (EvaluationException e) { |
| context.setPropertyResolved(false); |
| throw new ELException(e); |
| } |
| } else { |
| try { |
| return pr.getType(base, property); |
| } catch (EvaluationException e) { |
| context.setPropertyResolved(false); |
| throw new ELException(e); |
| } |
| } |
| |
| } |
| |
| |
| /** |
| * <p>Evaluate with the legacy property resolver chain and return |
| * the value.</p> |
| * |
| * @param context <code>ELContext</code> for evaluating this value |
| * @param base Base object against which this evaluation occurs |
| * (must be null because we are evaluating a top level variable) |
| * @param property Property name to be accessed |
| */ |
| public Object getValue(ELContext context, Object base, Object property) { |
| |
| if ((base == null) || (property == null)) { |
| return null; |
| } |
| |
| context.setPropertyResolved(true); |
| FacesContext fcontext = (FacesContext) context.getContext(FacesContext.class); |
| ELContext elContext = fcontext.getELContext(); |
| PropertyResolver pr = fcontext.getApplication().getPropertyResolver(); |
| |
| if ((base instanceof List) || base.getClass().isArray()) { |
| Integer index = (Integer) fcontext.getApplication().getExpressionFactory(). |
| coerceToType(property, Integer.class); |
| try { |
| return pr.getValue(base, index.intValue()); |
| } catch (EvaluationException e) { |
| context.setPropertyResolved(false); |
| throw new ELException(e); |
| } |
| } else { |
| try { |
| return pr.getValue(base, property); |
| } catch (EvaluationException e) { |
| context.setPropertyResolved(false); |
| throw new ELException(e); |
| } |
| } |
| |
| } |
| |
| |
| /** |
| * <p>Return <code>true</code> if the specified property is read only.</p> |
| * |
| * @param context <code>ELContext</code> for evaluating this value |
| * @param base Base object against which this evaluation occurs |
| * (must be null because we are evaluating a top level variable) |
| * @param property Property name to be accessed |
| */ |
| public boolean isReadOnly(ELContext context, Object base, Object property) { |
| |
| if ((base == null) || (property == null)) { |
| return false; |
| } |
| |
| context.setPropertyResolved(true); |
| FacesContext fcontext = (FacesContext) context.getContext(FacesContext.class); |
| ELContext elContext = fcontext.getELContext(); |
| PropertyResolver pr = fcontext.getApplication().getPropertyResolver(); |
| |
| if ((base instanceof List) || base.getClass().isArray()) { |
| Integer index = (Integer) fcontext.getApplication().getExpressionFactory(). |
| coerceToType(property, Integer.class); |
| try { |
| return pr.isReadOnly(base, index.intValue()); |
| } catch (EvaluationException e) { |
| context.setPropertyResolved(false); |
| throw new ELException(e); |
| } |
| } else { |
| try { |
| return pr.isReadOnly(base, property); |
| } catch (EvaluationException e) { |
| context.setPropertyResolved(false); |
| throw new ELException(e); |
| } |
| } |
| |
| } |
| |
| |
| |
| /** |
| * <p>Set the value of a property for the specified name.</p> |
| * |
| * @param context <code>ELContext</code> for evaluating this value |
| * @param base Base object against which this evaluation occurs |
| * (must be null because we are evaluating a top level variable) |
| * @param property Property name to be accessed |
| * @param value New value to be set |
| */ |
| public void setValue(ELContext context, Object base, Object property, Object value) { |
| |
| if ((base == null) || (property == null)) { |
| return; |
| } |
| |
| context.setPropertyResolved(true); |
| FacesContext fcontext = (FacesContext) context.getContext(FacesContext.class); |
| ELContext elContext = fcontext.getELContext(); |
| PropertyResolver pr = fcontext.getApplication().getPropertyResolver(); |
| |
| if ((base instanceof List) || base.getClass().isArray()) { |
| Integer index = (Integer) fcontext.getApplication().getExpressionFactory(). |
| coerceToType(property, Integer.class); |
| try { |
| pr.setValue(base, index.intValue(), value); |
| } catch (EvaluationException e) { |
| context.setPropertyResolved(false); |
| throw new ELException(e); |
| } |
| } else { |
| try { |
| pr.setValue(base, property, value); |
| } catch (EvaluationException e) { |
| context.setPropertyResolved(false); |
| throw new ELException(e); |
| } |
| } |
| |
| } |
| |
| |
| } |