/*
* 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 jakarta.el;
import java.util.MissingResourceException;
import java.util.Objects;
import java.util.ResourceBundle;
public class ResourceBundleELResolver extends ELResolver {
public ResourceBundleELResolver() {
super();
}
@Override
public Object getValue(ELContext context, Object base, Object property) {
Objects.requireNonNull(context);
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) {
Objects.requireNonNull(context);
if (base instanceof ResourceBundle) {
context.setPropertyResolved(base, property);
/*
* ResourceBundles are always read-only so fall-through to return null
*/
}
return null;
}
@Override
public void setValue(ELContext context, Object base, Object property, Object value) {
Objects.requireNonNull(context);
if (base instanceof ResourceBundle) {
context.setPropertyResolved(base, property);
throw new PropertyNotWritableException(
Util.message(context, "resolverNotWritable", base.getClass().getName()));
}
}
@Override
public boolean isReadOnly(ELContext context, Object base, Object property) {
Objects.requireNonNull(context);
if (base instanceof ResourceBundle) {
context.setPropertyResolved(base, property);
return true;
}
return false;
}
@Override
public Class<?> getCommonPropertyType(ELContext context, Object base) {
if (base instanceof ResourceBundle) {
return String.class;
}
return null;
}
}