org.sakaiproject.springframework.orm.hibernate.AddableSessionFactoryBean.java Source code

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Here is the source code for org.sakaiproject.springframework.orm.hibernate.AddableSessionFactoryBean.java

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/**********************************************************************************
 * $URL: https://source.sakaiproject.org/svn/trunk/sakai/admin-tools/su/src/java/org/sakaiproject/tool/su/SuTool.java $
 * $Id: SuTool.java 5970 2006-02-15 03:07:19Z ggolden@umich.edu $
 ***********************************************************************************
 *
 * Copyright (c) 2005, 2006, 2007, 2008 Sakai Foundation
 *
 * Licensed under the Educational Community 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.opensource.org/licenses/ECL-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.sakaiproject.springframework.orm.hibernate;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Iterator;
import java.util.Collections;

import org.hibernate.HibernateException;
import org.hibernate.cfg.Configuration;
import org.hibernate.dialect.function.ClassicAvgFunction;
import org.hibernate.dialect.function.ClassicCountFunction;
import org.hibernate.dialect.function.ClassicSumFunction;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.orm.hibernate3.LocalSessionFactoryBean;

public class AddableSessionFactoryBean extends LocalSessionFactoryBean implements ApplicationContextAware {
    protected final transient Log logger = LogFactory.getLog(getClass());

    private ApplicationContext applicationContext;

    /**
     * To be implemented by subclasses that want to to perform custom post-processing of the Configuration object after this FactoryBean performed its default initialization.
     * 
     * @param config
     *        the current Configuration object
     * @throws org.hibernate.HibernateException
     *         in case of Hibernate initialization errors
     */
    protected void postProcessConfiguration(Configuration config) throws HibernateException {
        super.postProcessConfiguration(config);

        String[] names = applicationContext.getBeanNamesForType(AdditionalHibernateMappings.class, false, false);

        try {
            List beans = new ArrayList();
            for (int i = 0; i < names.length; i++) {
                AdditionalHibernateMappings mappings = (AdditionalHibernateMappings) applicationContext
                        .getBean(names[i]);

                beans.add(mappings);
            }

            Collections.sort(beans);

            for (Iterator i = beans.iterator(); i.hasNext();) {
                AdditionalHibernateMappings mappings = (AdditionalHibernateMappings) i.next();
                mappings.processConfig(config);
            }

        } catch (IOException e) {
            logger.error(e.getMessage(), e);
            throw new RuntimeException(e);
        }
    }

    /**
     * Set the ApplicationContext that this object runs in. Normally this call will be used to initialize the object.
     * <p>
     * Invoked after population of normal bean properties but before an init callback like InitializingBean's afterPropertiesSet or a custom init-method. Invoked after ResourceLoaderAware's setResourceLoader.
     * 
     * @param applicationContext
     *        ApplicationContext object to be used by this object
     * @throws org.springframework.context.ApplicationContextException
     *         in case of applicationContext initialization errors
     * @throws org.springframework.beans.BeansException
     *         if thrown by application applicationContext methods
     * @see org.springframework.beans.factory.BeanInitializationException
     */
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.applicationContext = applicationContext;
    }

    /**
     * Provide backwards compatibility with Hibernate 3.1.x behavior for
     * aggregate functions.
     */
    @Override
    protected Configuration newConfiguration() throws HibernateException {
        final Configuration classicCfg = new Configuration();
        classicCfg.addSqlFunction("count", new ClassicCountFunction());
        classicCfg.addSqlFunction("avg", new ClassicAvgFunction());
        classicCfg.addSqlFunction("sum", new ClassicSumFunction());
        return classicCfg;
    }
}