/*
* Licensed 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 com.asual.summer.core.faces;
import javax.el.ELContext;
import javax.el.ELException;
import org.springframework.web.jsf.el.SpringBeanFacesELResolver;
import com.asual.summer.core.util.RequestUtils;
import com.asual.summer.core.util.ResourceUtils;
/**
*
* @author Rostislav Hristov
*
*/
public class FacesELResolver extends SpringBeanFacesELResolver {
private static String MESSAGES = "messages";
private static String PROPERTIES = "properties";
public static final String MESSAGE_ATTRIBUTE = FacesELResolver.class.getName() + ".MESSAGE_ATTRIBUTE";
public static final String PROPERTY_ATTRIBUTE = FacesELResolver.class.getName() + ".PROPERTY_ATTRIBUTE";
public Object getValue(ELContext elContext, Object base, Object property) throws ELException {
Object value = super.getValue(elContext, base, property);
if (value == null) {
if (property instanceof String) {
final String current = (String) property;
if (base == null && MESSAGES.equals(current)) {
elContext.setPropertyResolved(true);
RequestUtils.setAttribute(MESSAGE_ATTRIBUTE, null);
RequestUtils.setAttribute(PROPERTY_ATTRIBUTE, null);
return current;
} else if (base == null && PROPERTIES.equals(current)) {
elContext.setPropertyResolved(true);
RequestUtils.setAttribute(MESSAGE_ATTRIBUTE, null);
RequestUtils.setAttribute(PROPERTY_ATTRIBUTE, null);
return current;
} else if (MESSAGES.equals(base)) {
elContext.setPropertyResolved(true);
RequestUtils.setAttribute(MESSAGE_ATTRIBUTE, current);
String result = ResourceUtils.getMessage(current);
return result != null ? result : "";
} else if (PROPERTIES.equals(base)) {
elContext.setPropertyResolved(true);
RequestUtils.setAttribute(PROPERTY_ATTRIBUTE, current);
Object result = ResourceUtils.getProperty(current);
return result != null ? result : "";
} else if (base instanceof String && RequestUtils.getAttribute(MESSAGE_ATTRIBUTE) != null) {
elContext.setPropertyResolved(true);
RequestUtils.setAttribute(MESSAGE_ATTRIBUTE, RequestUtils.getAttribute(MESSAGE_ATTRIBUTE) + "." + current);
Object result = ResourceUtils.getMessage((String) RequestUtils.getAttribute(MESSAGE_ATTRIBUTE));
return result != null ? result : "";
} else if (base instanceof String && RequestUtils.getAttribute(PROPERTY_ATTRIBUTE) != null) {
elContext.setPropertyResolved(true);
RequestUtils.setAttribute(PROPERTY_ATTRIBUTE, RequestUtils.getAttribute(PROPERTY_ATTRIBUTE) + "." + current);
Object result = ResourceUtils.getProperty((String) RequestUtils.getAttribute(PROPERTY_ATTRIBUTE));
return result != null ? result : "";
}
}
}
return value;
}
}