SeamExternalContextFactory.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011, 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.faces.environment;

import javax.enterprise.inject.spi.BeanManager;
import javax.faces.FacesException;
import javax.faces.context.ExternalContext;
import javax.faces.context.ExternalContextFactory;

import org.jboss.seam.faces.util.BeanManagerUtils;
import org.jboss.solder.beanManager.BeanManagerLocator;

public class SeamExternalContextFactory extends ExternalContextFactory {
    private final ExternalContextFactory parent;

    public SeamExternalContextFactory(final ExternalContextFactory parent) {
        super();
        this.parent = parent;
    }

    @Override
    public ExternalContext getExternalContext(final Object context, final Object request, final Object response)
            throws FacesException {
        try {
            BeanManager manager = new BeanManagerLocator().getBeanManager();

            SeamExternalContext seamExternalContext = BeanManagerUtils
                    .getContextualInstance(manager, SeamExternalContext.class);
            seamExternalContext.setWrapped(parent.getExternalContext(context, request, response));

            return seamExternalContext;
        } catch (Exception e) {
            throw new IllegalStateException("Could not wrap ExternalContext", e);
        }
    }

    @Override
    public ExternalContextFactory getWrapped() {
        return parent;
    }
}