ELResolverProducer.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat, Inc., and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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 org.jboss.seam.solder.el;

import javax.el.ArrayELResolver;
import javax.el.BeanELResolver;
import javax.el.CompositeELResolver;
import javax.el.ELResolver;
import javax.el.ListELResolver;
import javax.el.MapELResolver;
import javax.el.ResourceBundleELResolver;
import javax.enterprise.inject.Instance;
import javax.enterprise.inject.Produces;
import javax.enterprise.inject.spi.BeanManager;

/**
 * <p>
 * Creates the composite EL Resolver which contains the default EL resolvers,
 * the CDI EL resolver and any user registered resolvers.
 * </p>
 * 
 * @author Stuart Douglas
 * 
 */
public class ELResolverProducer
{

   @Produces
   @Composite
   public ELResolver getELResolver(@Resolver Instance<ELResolver> resolvers, BeanManager beanManager)
   {
      // Create the default el resolvers
      CompositeELResolver compositeResolver = new CompositeELResolver();
      compositeResolver.add(beanManager.getELResolver());
      compositeResolver.add(new MapELResolver());
      compositeResolver.add(new ListELResolver());
      compositeResolver.add(new ArrayELResolver());
      compositeResolver.add(new ResourceBundleELResolver());
      compositeResolver.add(new BeanELResolver());

      // Add any user provided
      for (ELResolver resolver : resolvers)
      {
         compositeResolver.add(resolver);
      }

      return compositeResolver;
   }

}