/*
* $Id: FacesResourceBundleELResolver.java,v 1.13 2007/07/17 23:14:01 rlubke Exp $
*/
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package com.sun.faces.el;
import com.sun.faces.application.ApplicationAssociate;
import com.sun.faces.application.ApplicationResourceBundle;
import com.sun.faces.util.MessageUtils;
import com.sun.faces.util.Util;
import javax.el.ELContext;
import javax.el.ELException;
import javax.el.ELResolver;
import javax.el.PropertyNotFoundException;
import javax.el.PropertyNotWritableException;
import javax.faces.application.Application;
import javax.faces.context.FacesContext;
import java.beans.FeatureDescriptor;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
import java.util.ResourceBundle;
/**
* @author edburns
*/
public class FacesResourceBundleELResolver extends ELResolver {
/** Creates a new instance of FacesResourceBundleELResolver */
public FacesResourceBundleELResolver() {
}
public Object getValue(ELContext context, Object base, Object property) {
if (null != base) {
return null;
}
if (null == property) {
String message = MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "base and property"); // ?????
throw new PropertyNotFoundException(message);
}
FacesContext facesContext = (FacesContext)
context.getContext(FacesContext.class);
Application app = facesContext.getApplication();
ResourceBundle result =
app.getResourceBundle(facesContext, property.toString());
if (null != result) {
context.setPropertyResolved(true);
}
return result;
}
public Class<?> getType(ELContext context, Object base, Object property)
throws ELException {
if (null != base) {
return null;
}
if (null == property) {
String message = MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "base and property"); // ?????
throw new PropertyNotFoundException(message);
}
FacesContext facesContext = (FacesContext)
context.getContext(FacesContext.class);
Application app = facesContext.getApplication();
ResourceBundle result =
app.getResourceBundle(facesContext, property.toString());
if (null != result) {
context.setPropertyResolved(true);
return ResourceBundle.class;
}
return null;
}
public void setValue(ELContext context, Object base, Object property,
Object val) throws ELException {
String message;
if (base == null && property == null) {
message = MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "base and property"); // ?????
throw new PropertyNotFoundException(message);
}
FacesContext facesContext = (FacesContext)
context.getContext(FacesContext.class);
Application app = facesContext.getApplication();
ResourceBundle result =
app.getResourceBundle(facesContext, property.toString());
if (null != result) {
context.setPropertyResolved(true);
message = MessageUtils.getExceptionMessageString
(MessageUtils.OBJECT_IS_READONLY);
message = message + " base " + base + " property " + property;
throw new PropertyNotWritableException(message);
}
}
public boolean isReadOnly(ELContext context, Object base, Object property)
throws ELException {
if (base != null) {
return false;
}
if (property == null) {
String message = MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "property");
throw new PropertyNotFoundException(message);
}
FacesContext facesContext = (FacesContext)
context.getContext(FacesContext.class);
Application app = facesContext.getApplication();
ResourceBundle result =
app.getResourceBundle(facesContext, property.toString());
if (null != result) {
context.setPropertyResolved(true);
return true;
}
return false;
}
public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base) {
if (base != null) {
return null;
}
ArrayList<FeatureDescriptor> list = new ArrayList<FeatureDescriptor>();
FacesContext facesContext =
(FacesContext) context.getContext(FacesContext.class);
ApplicationAssociate associate =
ApplicationAssociate.getCurrentInstance();
Map<String, ApplicationResourceBundle> rbMap = associate.getResourceBundles();
if (rbMap == null) {
return list.iterator();
}
// iterate over the list of managed beans
for (Iterator<Map.Entry<String,ApplicationResourceBundle>> i = rbMap.entrySet().iterator(); i.hasNext(); ) {
Map.Entry<String,ApplicationResourceBundle> entry = i.next();
String var = entry.getKey();
ApplicationResourceBundle bundle = entry.getValue();
if ( bundle != null) {
Locale curLocale = Util.getLocaleFromContextOrSystem(facesContext);
String description = bundle.getDescription(curLocale);
String displayName = bundle.getDisplayName(curLocale);
list.add(Util.getFeatureDescriptor(var,
displayName, description, false, false, true,
ResourceBundle.class, Boolean.TRUE));
}
}
return list.iterator();
}
public Class<?> getCommonPropertyType(ELContext context, Object base) {
if (base != null) {
return null;
}
return String.class;
}
}