com.bstek.dorado.spring.ClassTypeListShortCutDecorator.java Source code

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Here is the source code for com.bstek.dorado.spring.ClassTypeListShortCutDecorator.java

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/*
 * This file is part of Dorado 7.x (http://dorado7.bsdn.org).
 * 
 * Copyright (c) 2002-2012 BSTEK Corp. All rights reserved.
 * 
 * This file is dual-licensed under the AGPLv3 (http://www.gnu.org/licenses/agpl-3.0.html) 
 * and BSDN commercial (http://www.bsdn.org/licenses) licenses.
 * 
 * If you are unsure which license is appropriate for your use, please contact the sales department
 * at http://www.bstek.com/contact.
 */

package com.bstek.dorado.spring;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.ManagedList;
import org.springframework.beans.factory.xml.BeanDefinitionDecorator;
import org.springframework.beans.factory.xml.ParserContext;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

/**
 * @author Benny Bao (mailto:benny.bao@bstek.com)
 * @since 2009-12-29
 */
public class ClassTypeListShortCutDecorator implements BeanDefinitionDecorator {
    private static final Log logger = LogFactory.getLog(ClassTypeListShortCutDecorator.class);
    private static final String IMPL_TYPES = "implTypes";

    @SuppressWarnings({ "unchecked", "rawtypes" })
    public BeanDefinitionHolder decorate(Node node, BeanDefinitionHolder definition, ParserContext parserContext) {
        AbstractBeanDefinition beanDef = (AbstractBeanDefinition) definition.getBeanDefinition();
        MutablePropertyValues propertyValues = (beanDef.getPropertyValues() == null) ? new MutablePropertyValues()
                : beanDef.getPropertyValues();

        ManagedList list = null;
        boolean firstPropertyValue = propertyValues.getPropertyValue(IMPL_TYPES) == null;

        if (!firstPropertyValue) {
            list = (ManagedList) (propertyValues.getPropertyValue(IMPL_TYPES).getValue());
        } else {
            list = new ManagedList();
            list.setSource(node);
            list.setMergeEnabled(true);
            propertyValues.addPropertyValue(IMPL_TYPES, list);
            beanDef.setPropertyValues(propertyValues);
        }

        Element el = (Element) node;
        String className = el.getAttribute("name");
        try {
            list.add(Class.forName(className));
        } catch (ClassNotFoundException e) {
            logger.warn(e, e);
        }
        return definition;
    }

}