[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-2306) Can't create Quartz Cron job at startup
Can't create Quartz Cron job at startup
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Key: JBSEAM-2306
URL: http://jira.jboss.com/jira/browse/JBSEAM-2306
Project: JBoss Seam
Issue Type: Bug
Components: Async
Affects Versions: 2.0.0.GA
Environment: Windows, JBoss 4.2.1 GA
Reporter: NSA
I've set up an ObserveInitilization class as suggested by Pete Muir here:
http://in.relation.to/Bloggers/DoingSomethingAtStartupWithSeam
It looks like this:
@Name("observeInitialization")
public class ObserveInitialization {
@In(create=true)
Updater updater;
@Observer("org.jboss.seam.postInitialization")
public void start() {
initialize(30 * 1000l);
}
@Asynchronous
public void initialize(@Duration long durationInMilliseconds) {
updater.update(new Date(), "0 0/3 * * * ?");
}
}
The Updater class looks like this:
@Name("updater")
public class Updater {
@In
private EntityManager entityManager;
@Logger
private Log log;
@Asynchronous
public void update(@Expiration Date start, @IntervalCron String cron) {
//...
}
}
The issue is this code calls ThreadPoolDispatcher.scheduleWithExecutorService, which casts
the return value of createSchedule to a TimerSchedule.
Because I'm using an @IntervalCron the return value of createSchedule is a
CronSchedule which extends Schedule, but not TimerSchedule, so I get a
ClassCastException:
09:14:59,387 ERROR [[/admin]] Exception sending context initialized event to listener
instance of cl
ass org.jboss.seam.servlet.SeamListener
java.lang.ClassCastException: org.jboss.seam.async.CronSchedule
at
org.jboss.seam.async.ThreadPoolDispatcher.scheduleInvocation(ThreadPoolDispatcher.java:47)
at
org.jboss.seam.async.ThreadPoolDispatcher.scheduleInvocation(ThreadPoolDispatcher.java:29)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
at
org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
at
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:155)
at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:91)
at
org.jboss.seam.async.ThreadPoolDispatcher_$$_javassist_6.scheduleInvocation(ThreadPoolDispatcher
_$$_javassist_6.java)
at
org.jboss.seam.async.AsynchronousInterceptor.aroundInvoke(AsynchronousInterceptor.java:38)
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:155)
at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:91)
at com.company.Updater_$$_javassist_5.update(Updater_$$_javassist_5.java)
at com.company.ObserveInitialization.initialize(ObserveInitialization.java:29)
I compared this to the Quartz example packaged with Seam.
That example also calls createSchedule but as a parameter to
QuartzDispatcher.scheduleWithQuartzService which accepts a Schedule, thus no
ClassCastException.
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