    001    /*****************************************************************************
    002     * Copyright (C) NanoContainer Organization. All rights reserved.            *
    003     * ------------------------------------------------------------------------- *
    004     * The software in this package is published under the terms of the BSD      *
    005     * style license a copy of which has been included with this distribution in *
    006     * the LICENSE.txt file.                                                     *
    007     *                                                                           *
    008     *****************************************************************************/
    009    package org.nanocontainer.script.xml;
    010
    011    import org.picocontainer.PicoContainer;
    012    import org.w3c.dom.Element;
    013
    014    import com.thoughtworks.xstream.XStream;
    015    import com.thoughtworks.xstream.io.xml.DomDriver;
    016    import com.thoughtworks.xstream.io.xml.DomReader;
    017
    018    /**
    019     * Implementation of XMLComponentInstanceFactory that uses
    020     * XStream to unmarshal DOM elements.
    021     *
    022     * @author Paul Hammant
    023     * @author Marcos Tarruella
    024     * @author Mauro Talevi
    025     */
    026    public class XStreamComponentInstanceFactory implements XMLComponentInstanceFactory {
    027            /** The XStream used to unmarshal the DOM element */
    028            private XStream xstream;
    029
    030            /**
    031             * Creates an XStreamComponentInstanceFactory with the default instance
    032             * of XStream
    033             */
    034            public XStreamComponentInstanceFactory(){
    035                    this(new XStream(new DomDriver()));
    036            }
    037
    038            /**
    039             * Creates an XStreamComponentInstanceFactory for a given instance
    040             * of XStream
    041             * @param xstream the XStream instance
    042             */
    043            public XStreamComponentInstanceFactory(XStream xstream){
    044                    this.xstream = xstream;
    045            }
    046
    047        /**
    048         * {@inheritDoc}
    049         *
    050         * @see XMLComponentInstanceFactory#makeInstance(org.picocontainer.PicoContainer,org.w3c.dom.Element,ClassLoader)
    051         */
    052        public Object makeInstance(PicoContainer pico, Element element, ClassLoader classLoader) throws ClassNotFoundException {
    053            return xstream.unmarshal(new DomReader(element));
    054        }
    055    }