Spring Boot Scheduler fixedDelay and cron

Question

I'm running a spring boot scheduled process that takes 5-10 seconds to complete. After it completes, 60 seconds elapse before the process begins again (Note that I'm not using fixedRate):

@Scheduled(fixedDelay=60_000)

Now, I want to limit it to run every minute Mon-Fri 9am to 5pm. I can accomplish this with

@Scheduled(cron="0 * 9-16 ? * MON-FRI")

Problem here is that this acts similar to fixedRate - the process triggers EVERY 60 seconds regardless of the amount of time it took to complete the previous run...

Any way to to combine the two techniques?

Answer 1

it worked for me like this

I created a bean that returns a specific task executor and allowed only 1 thread.

@Configuration
@EnableAsync
public class AsyncConfig implements AsyncConfigurer {

    @Bean(name = "movProcTPTE")
    public TaskExecutor movProcessualThreadPoolTaskExecutor() {
        ThreadPoolTaskExecutor exec = new ThreadPoolTaskExecutor();
        exec.setMaxPoolSize(1);
        exec.initialize();
        return exec;
    }
}

In my service, I injected my task executor and wrapped my logic with it, so even though my schedule runs every minute, my logic will only run when the task executor is free.

@Service
@EnableScheduling
public class ScheduledService {

    @Autowired
    private ReportDataService reportDataService;

    @Autowired
    private AsyncService async;

    @Autowired
    @Qualifier("movProcTPTE")
    private TaskExecutor movProcTaskExecutor;

    @Scheduled(cron = "0 * * 1-7 * SAT,SUN")
    public void agendamentoImportacaoMovProcessual(){
        movProcTaskExecutor.execute(
                () -> {
                    reportDataService.importDataFromSaj();
                }
        );

    }

}