4:45 p.m.
Hello,
I've been trying to send an email inside a method annotated with @Asynchronous in
plain tomcat using quartz. The method is called properly and works fine, however, for
some reason, the renderer cannot find the facelet template (xhtml).
If I send the email in a normal method it works fine.
After tracing the code I noticed that the problem occurs at the following code returning
null:
| package org.jboss.seam.util;
| ...
| public class Resources
| {
| ...
| public static URL getResource(String resource, ServletContext servletContext)
| {
| String stripped = resource.startsWith("/") ?
| resource.substring(1) : resource;
|
| URL url = null;
|
| if (servletContext!=null)
| {
| try
| {
| url = servletContext.getResource(resource);
| }
| catch (Exception e) {}
| }
|
| if (url==null)
| {
| url = getResource(resource, stripped);
| }
|
| return url;
| }
| ...
| }
|
I think that when at tomcat the quartz threads are unable to find the resources but I
don't understand why.
Following are the configurations, code and stack trace:
| @Name("coollectScheduler")
| @AutoCreate
| @Install(true)
| public class CoollectScheduler extends EntityController {
| /**
| *
| */
| private static final long serialVersionUID = 1633034787217471953L;
|
| private static final String WELCOME_MAIL_TEMPLATE =
"/registration/welcome-email.xhtml";
|
| @Asynchronous
| @Transactional(TransactionPropagationType.REQUIRED)
| public QuartzTriggerHandle scheduleWelcomeEmail(@Expiration
| Date when, @IntervalDuration
| Long interval, int numberOfRetries, User user) {
| try {
| user = getEntityManager().find(User.class, user.getId());
| Contexts.getEventContext().set("newUser", user);
| Contexts.getEventContext().set("numberOfRetries", numberOfRetries);
| info("Trying #{newUser.welcomeEmailRetries + 1} of #{numberOfRetries} to
send welcome email for the new user: #{newUser.name}");
| render(WELCOME_MAIL_TEMPLATE);
| user.welcomeEmailSuccessfullySent();
| user.getQuartzHandle().cancel();
| info("Welcome email was successfully delivered to #{newUser.name} at
#{newUser.email}.");
| } catch (Exception e) {
| e.printStackTrace();
| user.incWelcomeEmailRetries();
| if (user.getWelcomeEmailRetries() >= numberOfRetries ) {
| warn("Welcome email was not delivered to #{newUser.name} at #{newUser.email}
and the system will not try again.");
| try {
| user.getQuartzHandle().cancel();
| } catch (SchedulerException swallow) {
| error(swallow.getLocalizedMessage());
| }
| }
| else {
| warn("Welcome email was not delivered to #{newUser.name} at
#{newUser.email} due to: "
| + e.getLocalizedMessage()
| + ", the system will try again automatically.");
| }
| }
| getEntityManager().persist(user);
| getEntityManager().flush();
| return null;
| }
|
| public static CoollectScheduler instance() {
| return (CoollectScheduler) Component
| .getInstance(CoollectScheduler.class);
| }
|
| }
|
components.xhtml
| ...
| <!-- Install the QuartzDispatcher -->
| <async:quartz-dispatcher/>
| ...
|
Stacktrace
| java.lang.IllegalArgumentException: resource doesn't exist: /welcome-email.xhtml
| at org.jboss.seam.ui.facelet.FaceletsRenderer.resourceURL(FaceletsRenderer.java:184)
| at org.jboss.seam.ui.facelet.FaceletsRenderer$1.process(FaceletsRenderer.java:160)
| at
org.jboss.seam.ui.facelet.FaceletsRenderer$RenderingContext.run(FaceletsRenderer.java:78)
| at org.jboss.seam.ui.facelet.FaceletsRenderer.render(FaceletsRenderer.java:169)
| at org.jboss.seam.framework.Controller.render(Controller.java:108)
| at
br.com.liax.coollect.schedule.CoollectScheduler.scheduleWelcomeEmail(CoollectScheduler.java:42)
| 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.transaction.TransactionInterceptor$1.work(TransactionInterceptor.java:38)
| at org.jboss.seam.util.Work.workInTransaction(Work.java:40)
| at
org.jboss.seam.transaction.TransactionInterceptor.aroundInvoke(TransactionInterceptor.java:32)
| 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.async.AsynchronousInterceptor.aroundInvoke(AsynchronousInterceptor.java:50)
| 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
br.com.liax.coollect.schedule.CoollectScheduler_$$_javassist_5.scheduleWelcomeEmail(CoollectScheduler_$$_javassist_5.java)
| 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.util.Reflections.invokeAndWrap(Reflections.java:125)
| at org.jboss.seam.async.AsynchronousInvocation.call(AsynchronousInvocation.java:52)
| at org.jboss.seam.async.Asynchronous.executeInContexts(Asynchronous.java:76)
| at org.jboss.seam.async.Asynchronous.execute(Asynchronous.java:45)
| at
org.jboss.seam.async.QuartzDispatcher$QuartzJob.execute(QuartzDispatcher.java:304)
| at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
| at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
|
What can I do to render an email inside an asynchronous method in plain tomcat?
Thanks in advance,
Petterson
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