/*
* 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.myfaces.el.unified;
import org.apache.myfaces.config.RuntimeConfig;
import org.apache.myfaces.el.convert.PropertyResolverToELResolver;
import org.apache.myfaces.el.convert.VariableResolverToELResolver;
import javax.el.CompositeELResolver;
import javax.el.ELResolver;
import javax.faces.application.Application;
import javax.faces.el.PropertyResolver;
import javax.faces.el.VariableResolver;
/**
* @author Mathias Broekelmann (latest modification by $Author: mbr $)
* @version $Revision: 511514 $ $Date: 2007-02-25 14:47:48 +0100 (So, 25 Feb 2007) $
*/
@SuppressWarnings("deprecation")
public class ResolverBuilderBase
{
private final RuntimeConfig _config;
public ResolverBuilderBase(RuntimeConfig config)
{
_config = config;
}
/**
* add the el resolvers from the faces config, the el resolver wrapper for variable resolver, the el resolver
* wrapper for the property resolver and the el resolvers added by {@link Application#addELResolver(ELResolver)}.
* The resolvers where only added if they are not null
*
* @param elResolver
* the composite el resolver to which the resolvers where added
*/
protected void addFromRuntimeConfig(CompositeELResolver elResolver)
{
if (_config.getFacesConfigElResolvers() != null)
{
elResolver.add(_config.getFacesConfigElResolvers());
}
if (_config.getVariableResolver() != null)
{
elResolver.add(createELResolver(_config.getVariableResolver()));
}
else if (_config.getVariableResolverChainHead() != null)
{
elResolver.add(createELResolver(_config.getVariableResolverChainHead()));
}
if (_config.getPropertyResolver() != null)
{
elResolver.add(createELResolver(_config.getPropertyResolver()));
}
else if (_config.getPropertyResolverChainHead() != null)
{
elResolver.add(createELResolver(_config.getPropertyResolverChainHead()));
}
if (_config.getApplicationElResolvers() != null)
{
elResolver.add(_config.getApplicationElResolvers());
}
}
protected ELResolver createELResolver(VariableResolver resolver)
{
return new VariableResolverToELResolver(resolver);
}
protected ELResolver createELResolver(PropertyResolver resolver)
{
return new PropertyResolverToELResolver(resolver);
}
}