/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.jsf.el;
import com.caucho.el.AbstractVariableResolver;
import com.caucho.jsp.el.*;
import com.caucho.jsp.BundleManager;
import com.caucho.jsf.cfg.*;
import javax.el.*;
import javax.faces.context.*;
import javax.servlet.jsp.jstl.fmt.LocalizationContext;
import java.beans.FeatureDescriptor;
import java.util.*;
/**
* Variable resolution for JSF variables
*/
public class JsfResourceBundleELResolver extends ELResolver {
private BundleManager _bundleManager = BundleManager.create();
private HashMap<String,ResourceBundleConfig> _bundleMap
= new HashMap<String,ResourceBundleConfig>();
public JsfResourceBundleELResolver()
{
}
public void addBundle(String var, ResourceBundleConfig bundle)
{
_bundleMap.put(var, bundle);
}
@Override
public Class<?> getCommonPropertyType(ELContext env,
Object base)
{
if (base != null)
return null;
else
return ResourceBundle.class;
}
@Override
public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext env,
Object base)
{
if (base != null)
return null;
ArrayList<FeatureDescriptor> descriptors
= new ArrayList<FeatureDescriptor>();
for (ResourceBundleConfig bundle : _bundleMap.values()) {
FeatureDescriptor desc = new FeatureDescriptor();
desc.setName(bundle.getVar());
if (bundle.getDisplayName() != null)
desc.setDisplayName(bundle.getDisplayName());
else
desc.setDisplayName(bundle.getVar());
desc.setExpert(false);
desc.setHidden(false);
desc.setPreferred(true);
desc.setValue(ELResolver.RESOLVABLE_AT_DESIGN_TIME, Boolean.TRUE);
desc.setValue(ELResolver.TYPE, ResourceBundle.class);
descriptors.add(desc);
}
return descriptors.iterator();
}
@Override
public Class getType(ELContext env, Object base, Object property)
{
if (base == null && property instanceof String) {
String var = (String) property;
ResourceBundleConfig bundle = _bundleMap.get(var);
if (bundle != null) {
env.setPropertyResolved(true);
return ResourceBundle.class;
}
}
return null;
}
@Override
public Object getValue(ELContext env, Object base, Object property)
{
if (base == null && property instanceof String) {
String var = (String) property;
ResourceBundleConfig bundle = _bundleMap.get(var);
if (bundle != null) {
env.setPropertyResolved(true);
FacesContext facesContext = FacesContext.getCurrentInstance();
Locale locale = null;
if (facesContext != null)
locale = facesContext.getViewRoot().getLocale();
LocalizationContext lc;
lc = _bundleManager.getBundle(bundle.getBaseName(), locale);
if (lc == null)
lc = _bundleManager.getBundle(bundle.getBaseName());
if (lc != null)
return lc.getResourceBundle();
else
return null;
}
}
return null;
}
@Override
public boolean isReadOnly(ELContext env, Object base, Object property)
{
if (base == null && property instanceof String) {
String var = (String) property;
ResourceBundleConfig bundle = _bundleMap.get(var);
if (bundle != null) {
env.setPropertyResolved(true);
return true;
}
}
return false;
}
public void setValue(ELContext env,
Object base,
Object property,
Object value)
{
if (base == null && property instanceof String) {
String var = (String) property;
ResourceBundleConfig bundle = _bundleMap.get(var);
if (bundle != null) {
env.setPropertyResolved(true);
throw new PropertyNotWritableException();
}
}
}
}