| /* |
| * 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 javax.el; |
| |
| import java.beans.FeatureDescriptor; |
| import java.util.ArrayList; |
| import java.util.Enumeration; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.MissingResourceException; |
| import java.util.ResourceBundle; |
| |
| public class ResourceBundleELResolver extends ELResolver { |
| |
| public ResourceBundleELResolver() { |
| super(); |
| } |
| |
| @Override |
| public Object getValue(ELContext context, Object base, Object property) { |
| |
| if (context == null) { |
| throw new NullPointerException(); |
| } |
| |
| if (base instanceof ResourceBundle) { |
| context.setPropertyResolved(base, property); |
| |
| if (property != null) { |
| try { |
| return ((ResourceBundle) base).getObject(property |
| .toString()); |
| } catch (MissingResourceException mre) { |
| return "???" + property.toString() + "???"; |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public Class<?> getType(ELContext context, Object base, Object property) { |
| if (context == null) { |
| throw new NullPointerException(); |
| } |
| |
| if (base instanceof ResourceBundle) { |
| context.setPropertyResolved(base, property); |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public void setValue(ELContext context, Object base, Object property, |
| Object value) { |
| if (context == null) { |
| throw new NullPointerException(); |
| } |
| |
| if (base instanceof ResourceBundle) { |
| context.setPropertyResolved(base, property); |
| throw new PropertyNotWritableException(Util.message(context, |
| "resolverNotWriteable", base.getClass().getName())); |
| } |
| } |
| |
| @Override |
| public boolean isReadOnly(ELContext context, Object base, Object property) { |
| if (context == null) { |
| throw new NullPointerException(); |
| } |
| |
| if (base instanceof ResourceBundle) { |
| context.setPropertyResolved(base, property); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public Iterator<FeatureDescriptor> getFeatureDescriptors( |
| ELContext context, Object base) { |
| if (base instanceof ResourceBundle) { |
| List<FeatureDescriptor> feats = new ArrayList<>(); |
| Enumeration<String> e = ((ResourceBundle) base).getKeys(); |
| FeatureDescriptor feat; |
| String key; |
| while (e.hasMoreElements()) { |
| key = e.nextElement(); |
| feat = new FeatureDescriptor(); |
| feat.setDisplayName(key); |
| feat.setShortDescription(""); |
| feat.setExpert(false); |
| feat.setHidden(false); |
| feat.setName(key); |
| feat.setPreferred(true); |
| feat.setValue(RESOLVABLE_AT_DESIGN_TIME, Boolean.TRUE); |
| feat.setValue(TYPE, String.class); |
| feats.add(feat); |
| } |
| return feats.iterator(); |
| } |
| return null; |
| } |
| |
| @Override |
| public Class<?> getCommonPropertyType(ELContext context, Object base) { |
| if (base instanceof ResourceBundle) { |
| return String.class; |
| } |
| return null; |
| } |
| |
| } |