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Provides support for using Jetty as a web container

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/*
 * Fabric3
 * Copyright (c) 2009 Metaform Systems
 *
 * Fabric3 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 3 of
 * the License, or (at your option) any later version, with the
 * following exception:
 *
 * Linking this software statically or dynamically with other
 * modules is making a combined work based on this software.
 * Thus, the terms and conditions of the GNU General Public
 * License cover the whole combination.
 *
 * As a special exception, the copyright holders of this software
 * give you permission to link this software with independent
 * modules to produce an executable, regardless of the license
 * terms of these independent modules, and to copy and distribute
 * the resulting executable under terms of your choice, provided
 * that you also meet, for each linked independent module, the
 * terms and conditions of the license of that module. An
 * independent module is a module which is not derived from or
 * based on this software. If you modify this software, you may
 * extend this exception to your version of the software, but
 * you are not obligated to do so. If you do not wish to do so,
 * delete this exception statement from your version.
 *
 * Fabric3 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.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the
 * GNU General Public License along with Fabric3.
 * If not, see .
 *
 * ----------------------------------------------------
 *
 * Portions originally based on Apache Tuscany 2007
 * licensed under the Apache 2.0 license.
 *
 */
package org.fabric3.container.web.jetty;

import java.util.List;
import java.util.Map;
import javax.servlet.Filter;
import javax.servlet.Servlet;

import org.mortbay.jetty.servlet.ServletHandler;

import org.fabric3.spi.Injector;
import org.fabric3.spi.ObjectCreationException;

/**
 * Injects a servlet or filter with reference proxies, properties, and the component context.
 *
 * @version $Rev: 7459 $ $Date: 2009-08-03 11:02:06 +0200 (Mon, 03 Aug 2009) $
 */
public class InjectingServletHandler extends ServletHandler {
    private Map>> injectorMappings;

    public InjectingServletHandler(Map>> injectorMappings) {
        this.injectorMappings = injectorMappings;
    }

    public Servlet customizeServlet(Servlet servlet) throws Exception {
        inject(servlet);
        return servlet;
    }

    public Filter customizeFilter(Filter filter) throws Exception {
        inject(filter);
        return filter;
    }

    @SuppressWarnings({"unchecked"})
    private void inject(Object instance) throws ObjectCreationException {
        List> injectors = injectorMappings.get(instance.getClass().getName());
        if (injectors != null) {
            for (Injector injector : injectors) {
                injector.inject(instance);
            }
        }
    }
}