Creating job dynamically in Quartz + Spring - spring

Question

I'm trying to register jobs/trigger dynamically. The scenario is i have database which have all the job configurations like job start time. So i'm trying to get register this jobs by run time. Whenever i run register the job, it gives me following exception
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'schedulerFactoryBean' defined in class path resource [com/hello/QuartzFactory.class]: Invocation of init method failed; nested exception is org.quartz.SchedulerException: Registration of jobs and triggers failed: null [See nested exception: java.lang.NullPointerException]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:753) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) ~[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) ~[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at com.hello.MainClass.main(MainClass.java:14) [classes/:na]
Caused by: org.quartz.SchedulerException: Registration of jobs and triggers failed: null
at org.springframework.scheduling.quartz.SchedulerAccessor.registerJobsAndTriggers(SchedulerAccessor.java:254) ~[spring-context-support-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.scheduling.quartz.SchedulerFactoryBean.afterPropertiesSet(SchedulerFactoryBean.java:512) ~[spring-context-support-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
... 16 common frames omitted
Code: QuartzFactory
#Configuration
public class QuartzFactory {
#Autowired
private ApplicationContext applicationContext;
#Bean
public SpringBeanJobFactory springBeanJobFactory() {
AutowiringSpringBeanJobFactory jobFactory = new AutowiringSpringBeanJobFactory();
jobFactory.setApplicationContext(applicationContext);
return jobFactory;
}
#Autowired
private QuartzConfiguration quartzConfiguration;
#Bean
public SchedulerFactoryBean schedulerFactoryBean() {
quartzConfiguration.setExpression("0/10 * * * * ?");
CronTriggerFactoryBean data = quartzConfiguration.cronTriggerFactoryBean();
SchedulerFactoryBean scheduler = new SchedulerFactoryBean();
scheduler.setJobFactory(springBeanJobFactory());
scheduler.setTriggers(data.getObject());
return scheduler;
}
}
QuartzConfiguration
#Component
#ComponentScan("com.hello")
public class QuartzConfiguration {
public String getExpression() {
return expression;
}
public void setExpression(String expression) {
this.expression = expression;
}
private String expression;
public JobDetailFactoryBean jobDetailFactoryBean(){
JobDetailFactoryBean factory = new JobDetailFactoryBean();
factory.setJobClass(SampleJob.class);
Map<String,Object> map = new HashMap<String,Object>();
map.put("name", "RAM");
map.put(MyJobTwo.COUNT, 1);
factory.setJobDataAsMap(map);
factory.setGroup("mygroup");
factory.setName("myjob");
return factory;
}
public CronTriggerFactoryBean cronTriggerFactoryBean(){
CronTriggerFactoryBean stFactory = new CronTriggerFactoryBean();
stFactory.setJobDetail(jobDetailFactoryBean().getObject());
stFactory.setStartDelay(3000);
stFactory.setName("mytrigger");
stFactory.setGroup("mygroup");
stFactory.setCronExpression(expression); //0/10 * * * * ?
return stFactory;
}

Answer 1

You forgot to call the method afterPropertiesSet() on both factories.
use factory.afterPropertiesSet() and stFactory.afterPropertiesSet() after you set your properties. You will need to set a name for the Trigger Factory as well.
When you call getObject you receive null if you doesn't call this method.
OR
Annotate the both methods on QuartzConfiguration with #Bean to call automatically the afterPropertiesSet method.