/*
* $Id: TilesContextPropertyAccessorDelegateFactory.java 1049696 2010-12-15 20:30:10Z apetrelli $
*
* 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.tiles.ognl;
import ognl.PropertyAccessor;
import org.apache.tiles.request.ApplicationContext;
import org.apache.tiles.request.Request;
import org.apache.tiles.util.CombinedBeanInfo;
/**
* Decides the appropriate {@link PropertyAccessor} for the given property name
* and {@link Request}.
*
* @version $Rev: 1049696 $ $Date: 2010-12-15 21:30:10 +0100 (Wed, 15 Dec 2010) $
* @since 2.2.0
*/
public class TilesContextPropertyAccessorDelegateFactory implements
PropertyAccessorDelegateFactory<Request> {
/**
* The plain object property accessor, to be used directly for
* {@link Request}.
*/
private PropertyAccessor objectPropertyAccessor;
/**
* The application context property accessor.
*/
private PropertyAccessor applicationContextPropertyAccessor;
/**
* The request scope property accessor.
*/
private PropertyAccessor anyScopePropertyAccessor;
/**
* The session scope property accessor.
*/
private PropertyAccessor scopePropertyAccessor;
/**
* The bean info of {@link Request} and
* {@link org.apache.tiles.request.ApplicationContext}.
*/
private CombinedBeanInfo beanInfo;
/**
* Constructor.
*
* @param objectPropertyAccessor The plain object property accessor, to be
* used directly for {@link Request}.
* @param applicationContextPropertyAccessor The application context
* property accessor.
* @param anyScopePropertyAccessor The request scope property accessor.
* @param scopePropertyAccessor The session scope property accessor.
* @since 2.2.0
*/
public TilesContextPropertyAccessorDelegateFactory(
PropertyAccessor objectPropertyAccessor,
PropertyAccessor applicationContextPropertyAccessor,
PropertyAccessor anyScopePropertyAccessor,
PropertyAccessor scopePropertyAccessor) {
beanInfo = new CombinedBeanInfo(Request.class, ApplicationContext.class);
this.objectPropertyAccessor = objectPropertyAccessor;
this.applicationContextPropertyAccessor = applicationContextPropertyAccessor;
this.anyScopePropertyAccessor = anyScopePropertyAccessor;
this.scopePropertyAccessor = scopePropertyAccessor;
}
/** {@inheritDoc} */
public PropertyAccessor getPropertyAccessor(String propertyName,
Request request) {
PropertyAccessor retValue;
if (propertyName.endsWith("Scope")) {
String scopeName = propertyName.substring(0, propertyName.length()
- ScopePropertyAccessor.SCOPE_SUFFIX_LENGTH);
if (request.getContext(scopeName) != null) {
return scopePropertyAccessor;
}
}
if (beanInfo.getMappedDescriptors(Request.class)
.containsKey(propertyName)) {
retValue = objectPropertyAccessor;
} else if (beanInfo.getMappedDescriptors(ApplicationContext.class)
.containsKey(propertyName)) {
retValue = applicationContextPropertyAccessor;
} else {
return anyScopePropertyAccessor;
}
return retValue;
}
}