PropertyConfig.java

package gov.nysenate.openleg.config;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

/**
 * Configures access to the app.properties config file through @Value annotations.
 */
@Configuration
@Profile({"dev", "prod"})
public class PropertyConfig
{
    private static final Logger logger = LoggerFactory.getLogger(PropertyConfig.class);

    public static final String PROPERTY_FILENAME = "app.properties";

    /**
     * This instance is necessary for Spring to load up the property file and allow access to
     * it through the @Value(${propertyName}) annotation. Also note that this bean must be static
     * in order to work properly with current Spring behavior.
     */
    @Bean
    public static PropertySourcesPlaceholderConfigurer properties() {
        logger.info("Loading prod properties");
        PropertySourcesPlaceholderConfigurer pspc = new PropertySourcesPlaceholderConfigurer();
        Resource[] resources = new ClassPathResource[] { new ClassPathResource(PROPERTY_FILENAME) };
        pspc.setLocations(resources);
        pspc.setIgnoreUnresolvablePlaceholders(true);
        return pspc;
    }
}