src/main/java/org/eclipse/openk/contactbasedata/service/InitPropertyLogger.java

package org.eclipse.openk.contactbasedata.service;

import lombok.extern.log4j.Log4j2;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.env.OriginTrackedMapPropertySource;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.context.event.EventListener;
import org.springframework.core.env.AbstractEnvironment;
import org.springframework.core.env.EnumerablePropertySource;
import org.springframework.core.env.Environment;
import org.springframework.core.env.MutablePropertySources;
import org.springframework.stereotype.Component;

import java.util.Arrays;
import java.util.stream.StreamSupport;

@Log4j2
@Component
public class InitPropertyLogger  {

    @EventListener
    public void handleContextRefresh(ContextRefreshedEvent event) {
        final Environment environment = event.getApplicationContext().getEnvironment();
        log.info("\n");
        log.info("============== Configuration ==============");
        log.info("Active profile: {}", Arrays.toString(environment.getActiveProfiles()));
        final MutablePropertySources sources = ((AbstractEnvironment) environment).getPropertySources();
        StreamSupport.stream(sources.spliterator(), false)
                .filter(ps -> ps instanceof OriginTrackedMapPropertySource)
                .map(ps -> ((OriginTrackedMapPropertySource) ps).getPropertyNames())
                .flatMap(Arrays::stream)
                .distinct()
                .forEach(prop -> log.info("{}: {}", prop, environment.getProperty(prop)));
        log.info("===========================================\n");
    }
}