ExampleApplicationContext.java

package net.petrikainulainen.springdata.jpa.config;

import net.petrikainulainen.springdata.jpa.common.ConstantDateTimeService;
import net.petrikainulainen.springdata.jpa.common.CurrentTimeDateTimeService;
import net.petrikainulainen.springdata.jpa.common.DateTimeService;
import org.springframework.context.MessageSource;
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.context.annotation.Profile;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.context.support.ResourceBundleMessageSource;

/**
 * @author Petri Kainulainen
 */
@Configuration
@ComponentScan("net.petrikainulainen.springdata.jpa")
@Import({WebMvcContext.class, PersistenceContext.class, SecurityContext.class})
public class ExampleApplicationContext {

    private static final String MESSAGE_SOURCE_BASE_NAME = "i18n/messages";

    /**
     * These static classes are required because it makes it possible to use
     * different properties files for every Spring profile.
     *
     * See: <a href="http://stackoverflow.com/a/14167357/313554">This StackOverflow answer</a> for more details.
     */
    @Profile(Profiles.APPLICATION)
    @Configuration
    @PropertySource("classpath:application.properties")
    static class ApplicationProperties {}

    @Profile(Profiles.APPLICATION)
    @Bean
    DateTimeService currentTimeDateTimeService() {
        return new CurrentTimeDateTimeService();
    }

    @Profile(Profiles.INTEGRATION_TEST)
    @Configuration
    @PropertySource("classpath:integration-test.properties")
    static class IntegrationTestProperties {}

    @Profile(Profiles.INTEGRATION_TEST)
    @Bean
    DateTimeService constantDateTimeService() {
        return new ConstantDateTimeService();
    }

    @Bean
    MessageSource messageSource() {
        ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
        messageSource.setBasename(MESSAGE_SOURCE_BASE_NAME);
        messageSource.setUseCodeAsDefaultMessage(true);
        return messageSource;
    }

    @Bean
    PropertySourcesPlaceholderConfigurer propertyPlaceHolderConfigurer() {
        return new PropertySourcesPlaceholderConfigurer();
    }
}