com.github.carlomicieli.config.ApplicationConfig.java Source code

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Here is the source code for com.github.carlomicieli.config.ApplicationConfig.java

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/*
 * Copyright 2012 the original author or authors.
 *
 * Licensed under the Apache 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.apache.org/licenses/LICENSE-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 com.github.carlomicieli.config;

import java.util.Arrays;

import javax.sql.DataSource;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.cfg.ImprovedNamingStrategy;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.core.env.Environment;
import org.springframework.orm.hibernate4.HibernateTransactionManager;
import org.springframework.orm.hibernate4.LocalSessionFactoryBuilder;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import com.github.carlomicieli.service.hibernate.SessionEventInterceptor;
import com.mchange.v2.c3p0.ComboPooledDataSource;

/**
 * The application configuration class.
 * 
 * @author Carlo P. Micieli
 *
 */
@Configuration
@EnableTransactionManagement
@Import({ ApplicationDevConfig.class, ApplicationTestConfig.class })
@ComponentScan(basePackages = "com.github.carlomicieli")
public class ApplicationConfig {
    private @Autowired Environment env;
    private static final Logger log = LoggerFactory.getLogger(ApplicationConfig.class);

    /**
     * Return the data source bean.
     * @return the data source bean.
     */
    public @Bean DataSource dataSource() {
        log.info(Arrays.asList(env.getActiveProfiles()).toString());

        ComboPooledDataSource ds = new ComboPooledDataSource();

        try {
            ds.setDriverClass(env.getProperty(AvailableSettings.DRIVER));
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        ds.setJdbcUrl(env.getProperty(AvailableSettings.URL));
        ds.setUser(env.getProperty(AvailableSettings.USER));
        ds.setPassword(env.getProperty(AvailableSettings.PASS));

        return ds;
    }

    /**
     * Return the Hibernate session factory bean.
     * @return the Hibernate session factory bean.
     * @throws PropertyVetoException
     */
    public @Bean(destroyMethod = "close") SessionFactory sessionFactory() {
        LocalSessionFactoryBuilder fb = new LocalSessionFactoryBuilder(dataSource());

        // set the naming convention that adds underscores in place of uppercase letters 
        // in mixed-case table and column names
        fb.setNamingStrategy(ImprovedNamingStrategy.INSTANCE);

        // scan these packages for entity classes
        fb.scanPackages("com.github.carlomicieli.model");

        // set the session events interceptor
        fb.setInterceptor(new SessionEventInterceptor());

        return fb.buildSessionFactory();
    }

    /**
     * Return the Hibernate transaction manager bean.
     * @return the Hibernate transaction manager bean.
     */
    public @Bean HibernateTransactionManager transactionManager() {
        HibernateTransactionManager txm = new HibernateTransactionManager();
        txm.setSessionFactory(sessionFactory());
        return txm;
    }
}