Spring Framework - @Profile Examples

import com.logicbig.example.service.Dao;
import com.logicbig.example.service.InMemoryCustomerDao;
import com.logicbig.example.service.JpaCustomerDao;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

@Configuration
public class DataConfig {

    @Bean
    @Profile(PROFILE_LOCAL)
    public Dao<Customer> inMemoryCustomerDao() {
        return new InMemoryCustomerDao();
    }

    @Bean
    @Profile(PROFILE_DEV)
    public Dao<Customer> jpaDao() {
        return new JpaCustomerDao();

    }

    @Bean
    @Profile(PROFILE_DEV)

    public EntityManager devEntityManager() {
        EntityManagerFactory emf =
                Persistence.createEntityManagerFactory("objectdb:customerDev.odb");
        return emf.createEntityManager();
    }

    @Bean
    @Profile(PROFILE_PROD)
    public EntityManager prodEntityManager(){
        //todo: get DataSource from JNDI, prepare and return EntityManager
        return null;
    }


    public static final String PROFILE_LOCAL = "local";
    public static final String PROFILE_DEV = "dev";
    public static final String PROFILE_PROD = "prod";
}

@Configuration
@Import(DataConfig.class)
public class AppConfig {

    @Bean
    @Profile(PROFILE_SWING)
    public CustomerUi swingCustomerUi () {
        return new SwingCustomerUi();
    }

    @Bean
    @Profile(PROFILE_JAVA_FX)
    public CustomerUi javaFxCustomerUi () {
        return new JavaFxCustomerUi();
    }

    @Bean
    public CustomerService customerService () {
        return new CustomerService();
    }

    public static void main (String[] args) {

        AnnotationConfigApplicationContext context =
                            new AnnotationConfigApplicationContext();
        context.getEnvironment()
               .setActiveProfiles(PROFILE_SWING, DataConfig.PROFILE_LOCAL);
        context.register(AppConfig.class);
        context.refresh();

        CustomerUi bean = context.getBean(CustomerUi.class);
        bean.showUi();
    }

    public static final String PROFILE_SWING = "swing";
    public static final String PROFILE_JAVA_FX = "javafx";
}

@Configuration
public class AppConfig {

    @Bean
    @Profile(PROFILE_LOCAL)
    public DataService dataServiceLocal() {
        return DataServiceLocal.Instance;
    }

    @Bean
    @Profile(PROFILE_REMOTE)
    public DataService dataServiceRemote() {
        return DataServiceRemote.Instance;
    }

    public static final String PROFILE_LOCAL = "local";
    public static final String PROFILE_REMOTE = "remote";
}