org.fabric3.implementation.web.runtime.ServletContextInjector Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of fabric3-web Show documentation
Support for web components
The newest version!
/*
* Fabric3
* Copyright (c) 2009-2013 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 .
*/
package org.fabric3.implementation.web.runtime;

import javax.servlet.ServletContext;

import org.fabric3.implementation.pojo.objectfactory.MultiplicityObjectFactory;
import org.fabric3.spi.objectfactory.InjectionAttributes;
import org.fabric3.spi.objectfactory.Injector;
import org.fabric3.spi.objectfactory.ObjectCreationException;
import org.fabric3.spi.objectfactory.ObjectFactory;

/**
 * Injects objects (reference proxies, properties, contexts) into a ServletContext.
 */
public class ServletContextInjector implements Injector {
    private ObjectFactory objectFactory;
    private String key;

    public void inject(ServletContext context) throws ObjectCreationException {
        context.setAttribute(key, objectFactory.getInstance());
    }

    public void setObjectFactory(ObjectFactory objectFactory, InjectionAttributes attributes) {
        this.objectFactory = objectFactory;
        this.key = attributes.getKey().toString();
    }

    public void clearObjectFactory() {
        if (this.objectFactory instanceof MultiplicityObjectFactory) {
            ((MultiplicityObjectFactory) this.objectFactory).clear();
        } else {
            objectFactory = null;
            key = null;
        }
    }

}