how do I make Spring Schedulling to call a job with single tasklet periodically - spring

Question

With the annotation #Scheduled(fixedRate = 600000), I was expecting to trigger the job and, consequently, the tasklet as well, each 10 minutes (600000 milliseconds = 600 seconds = 10 minutes). Firstly, I tried by using return RepeatStatus.FINISHED since I understood the spring scheduler would trigger each 10 minutes an independent thread. In fact, if I use return RepeatStatus.FINISHED, it finishes the program at all, in other word, spring scheduler will not call the job again.
I am not sure if I have setup something wrong in Spring Scheduler or I have some wrong concept in my mind about tasklet. As a rule of thumb, I have in my mind based on what I have studded recently, when I don't need a reader and writer method, tasklet is a possible alternative. I want to create a batch process which will just move file from one folder to other folder each ten minutes. There will be no file process.
From the console logs, I can see that the TestScheduller.runJob was evoked once when I ran CommandLineJobRunner.
Then, as my first investigation test, I changed to return RepeatStatus.CONTINUABLE and, after that, I noted that the tasklet did ran infinite time but, instead of 10 minutes, let's say each 1 second. Certainly, this isn't correct. Additionally, the job didn't finish at all.
So, my question is: how can I make spring.schedulling evoke the below job each ten minutes?
Scheduler created in order to trigger the tasklet each 10 minutes:
#Component
public class TestScheduller {
private Job job;
private JobLauncher jobLauncher;
#Autowired
public TestScheduller(JobLauncher jobLauncher,
#Qualifier("helloWorldJob") Job job) {
this.job = job;
this.jobLauncher = jobLauncher;
}
#Scheduled(fixedRate = 600000)
public void runJob() {
try {
System.out.println("runJob");
JobParameters jobParameters = new JobParametersBuilder().addLong(
"time", System.currentTimeMillis()).toJobParameters();
jobLauncher.run(job, jobParameters);
} catch (Exception ex) {
System.out.println("runJob exception ***********");
}
}
Java Configuration class
#Configuration
#ComponentScan("com.test.config")
#EnableScheduling
#Import(StandaloneInfrastructureConfiguration.class)
public class HelloWorldJobConfig {
#Autowired
private JobBuilderFactory jobBuilders;
#Autowired
private StepBuilderFactory stepBuilders;
#Autowired
private InfrastructureConfiguration infrastructureConfiguration;
#Autowired
private DataSource dataSource; // just for show...
#Bean
public Job helloWorldJob(){
return jobBuilders.get("helloWorldJob")
.start(step())
.build();
}
#Bean
public Step step(){
return stepBuilders.get("step")
.tasklet(tasklet())
.build();
}
#Bean
public Tasklet tasklet() {
return new HelloWorldTasklet();
}
}
Tasklet:
public class HelloWorldTasklet implements Tasklet {
public RepeatStatus execute(StepContribution arg0, ChunkContext arg1)
throws Exception {
System.out.println("HelloWorldTasklet.execute called");
return RepeatStatus.CONTINUABLE;
}
}
Console Logs:
2016-01-18 14:16:16,376 INFO org.springframework.context.annotation.AnnotationConfigApplicationContext - Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext#dcf3e99: startup date [Mon Jan 18 14:16:16 CST 2016]; root of context hierarchy
2016-01-18 14:16:16,985 WARN org.springframework.context.annotation.ConfigurationClassEnhancer - #Bean method ScopeConfiguration.stepScope is non-static and returns an object assignable to Spring's BeanFactoryPostProcessor interface. This will result in a failure to process annotations such as #Autowired, #Resource and #PostConstruct within the method's declaring #Configuration class. Add the 'static' modifier to this method to avoid these container lifecycle issues; see #Bean Javadoc for complete details
2016-01-18 14:16:17,024 WARN org.springframework.context.annotation.ConfigurationClassEnhancer - #Bean method ScopeConfiguration.jobScope is non-static and returns an object assignable to Spring's BeanFactoryPostProcessor interface. This will result in a failure to process annotations such as #Autowired, #Resource and #PostConstruct within the method's declaring #Configuration class. Add the 'static' modifier to this method to avoid these container lifecycle issues; see #Bean Javadoc for complete details
2016-01-18 14:16:17,091 INFO org.springframework.context.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.scheduling.annotation.SchedulingConfiguration' of type [class org.springframework.scheduling.annotation.SchedulingConfiguration$$EnhancerBySpringCGLIB$$e07fa052] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2016-01-18 14:16:17,257 INFO org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactory - Starting embedded database: url='jdbc:hsqldb:mem:testdb', username='sa'
2016-01-18 14:16:17,425 INFO org.springframework.jdbc.datasource.init.ScriptUtils - Executing SQL script from class path resource [org/springframework/batch/core/schema-drop-hsqldb.sql]
2016-01-18 14:16:17,430 INFO org.springframework.jdbc.datasource.init.ScriptUtils - Executed SQL script from class path resource [org/springframework/batch/core/schema-drop-hsqldb.sql] in 5 ms.
2016-01-18 14:16:17,430 INFO org.springframework.jdbc.datasource.init.ScriptUtils - Executing SQL script from class path resource [org/springframework/batch/core/schema-hsqldb.sql]
2016-01-18 14:16:17,456 INFO org.springframework.jdbc.datasource.init.ScriptUtils - Executed SQL script from class path resource [org/springframework/batch/core/schema-hsqldb.sql] in 25 ms.
runJob
2016-01-18 14:16:18,083 INFO org.springframework.batch.core.repository.support.JobRepositoryFactoryBean - No database type set, using meta data indicating: HSQL
2016-01-18 14:16:18,103 INFO org.springframework.batch.core.repository.support.JobRepositoryFactoryBean - No database type set, using meta data indicating: HSQL
2016-01-18 14:16:18,448 INFO org.springframework.batch.core.launch.support.SimpleJobLauncher - No TaskExecutor has been set, defaulting to synchronous executor.
2016-01-18 14:16:18,454 INFO org.springframework.batch.core.launch.support.SimpleJobLauncher - No TaskExecutor has been set, defaulting to synchronous executor.
2016-01-18 14:16:18,558 INFO org.springframework.batch.core.launch.support.SimpleJobLauncher - Job: [SimpleJob: [name=helloWorldJob]] launched with the following parameters: [{time=1453148177985}]
2016-01-18 14:16:18,591 INFO org.springframework.batch.core.launch.support.SimpleJobLauncher - Job: [SimpleJob: [name=helloWorldJob]] launched with the following parameters: [{}]
2016-01-18 14:16:18,613 INFO org.springframework.batch.core.job.SimpleStepHandler - Executing step: [step]
HelloWorldTasklet.execute called
2016-01-18 14:16:18,661 INFO org.springframework.batch.core.launch.support.SimpleJobLauncher - Job: [SimpleJob: [name=helloWorldJob]] completed with the following parameters: [{}] and the following status: [COMPLETED]
2016-01-18 14:16:18,661 INFO org.springframework.context.annotation.AnnotationConfigApplicationContext - Closing org.springframework.context.annotation.AnnotationConfigApplicationContext#dcf3e99: startup date [Mon Jan 18 14:16:16 CST 2016]; root of context hierarchy
2016-01-18 14:16:18,665 INFO org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactory - Shutting down embedded database: url='jdbc:hsqldb:mem:testdb'
2016-01-18 14:16:18,844 INFO org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [org/springframework/jdbc/support/sql-error-codes.xml]
Picked up JAVA_TOOL_OPTIONS: -agentlib:jvmhook
Picked up _JAVA_OPTIONS: -Xrunjvmhook -Xbootclasspath/a:C:\PROGRA~2\HP\QUICKT~1\bin\JAVA_S~1\classes;C:\PROGRA~2\HP\QUICKT~1\bin\JAVA_S~1\classes\jasmine.jar

Answer 1

You need to call the method setAllowStartIfComplete(true) of the TaskletStep.
So instead of having a method like
#Bean
public Step step(){
return stepBuilders.get("step")
.tasklet(tasklet())
.build();
}
it should look like:
#Bean
public Step step(){
TaskletStep step = stepBuilders.get("step")
.tasklet(tasklet())
.build();
step.setAllowSta
}