SpringBootAsyncTaskApplication.java

package com.springbootdev.samples.springbootasynctask;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableAsync;

@SpringBootApplication
@EnableAsync
public class SpringBootAsyncTaskApplication implements CommandLineRunner {

    private static final Logger LOGGER = LoggerFactory.getLogger(SpringBootAsyncTaskApplication.class);

    @Autowired
    private WorkerService workerService;

    public static void main(String[] args) {
        SpringApplication.run(SpringBootAsyncTaskApplication.class, args);
    }

    @Override
    public void run(String... strings) throws Exception
    {
        if (strings == null || strings.length == 0) {
            LOGGER.error(" worker type is expected as the command line parameter ");
            return;
        }

        if (strings[0].equals("non-async")) {
            workerService.runNonAsyncWorkers();
        }
        else if (strings[0].equals("async")) {
            workerService.runAsyncWorkers();
        }
        else if (strings[0].equals("future")) {
            workerService.runAsyncWorkersWithFutureReturnType();
        }
    }
}