Spring scheduled method

[dullnigAlex]

I have a Spring scheduled method in Windchill and want to call some methods, but i get the erro that there is no active method context. So I tried to call the method via RemoteMethodServer.invoke(). This actually works but i always get the following error in the log:

2023-12-07 10:44:13,675 ERROR [pool-14-thread-1] wt.method.client  - RemoteMethodServer.invoke() called on default method server from within method server! Probable bad loopback code! java.lang.Exception

at wt.method.RemoteMethodServer.logQuestionableOrBadInvokeCall(RemoteMethodServer.java:1581)

at wt.method.RemoteMethodServer.invoke(RemoteMethodServer.java:647)

at at.techsoft.ifactory.worker.components.QueueRetryMechanism.doRetry(QueueRetryMechanism.java:51)

at at.techsoft.ifactory.worker.components.QueueRetryMechanism.retryFailedEntries(QueueRetryMechanism.java:31)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)

at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)

at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)

at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)

at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)

at java.base/java.lang.Thread.run(Thread.java:834)

Is there a way to get the active method context without calling RemoteMethodServer.inoke()?

The code runs in the ServerManager I think.

Thanks!

[HelesicPetr]

Hi @dullnigAlex 

I do not use invoke, I use just getDefault

RemoteMethodServer.getDefault().setUserName("----");
RemoteMethodServer.getDefault().setPassword("----");

Then I use standard Windchill methods.

PetrH

[dullnigAlex]

If I only get the default i get:

2023-12-07 11:28:19,882 ERROR [pool-14-thread-1] org.springframework.scheduling.support.TaskUtils$LoggingErrorHandler  - Unexpected error occurred in scheduled task wt.method.MethodServerException: No active method context

at wt.method.MethodContext.getContext(MethodContext.java:1831)

at wt.session.StandardSessionManager.isAccessEnforced(StandardSessionManager.java:416)

at wt.queue.QueueMonitorHelper.queueEntries(QueueMonitorHelper.java:1445)

at wt.queue.StandardQueueService.queueEntries(StandardQueueService.java:501)

at jdk.internal.reflect.GeneratedMethodAccessor428.invoke(Unknown Source)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at wt.services.ServiceFactory$ServerInvocationHandler.invoke(ServiceFactory.java:399)

at com.sun.proxy.$Proxy76.queueEntries(Unknown Source)

at at.techsoft.ifactory.worker.components.QueueRetryMechanism.retryFailedEntries(QueueRetryMechanism.java:42)

at jdk.internal.reflect.GeneratedMethodAccessor427.invoke(Unknown Source)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)

at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)

at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)

at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)

at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)

at java.base/java.lang.Thread.run(Thread.java:834)

[HelesicPetr]

Does your scheduler method calls the Windchill http address by URL?

PetrH 

[dullnigAlex]

I've tried it with this:

@Component
public class QueueRetryMechanism implements RemoteAccess {

    private static final TSLogger logger = new TSLogger(QueueRetryMechanism.class.getCanonicalName());

    @Scheduled(initialDelay = 60000, fixedRate = 120000)
    public void retryFailedEntries() throws IOException {
        RemoteMethodServer.getDefault().setUserName("wtadmin");
        RemoteMethodServer.getDefault().setPassword("wtAdm!n");
        try {
            ProcessingQueue queue = (ProcessingQueue) QueueHelper.manager.getQueue("IFactoryWorkerQueue", ProcessingQueue.class);
            Enumeration enumeration = QueueHelper.manager.queueEntries(queue);
            System.out.println(enumeration);
        } catch (WTException e) {
            logger.error(e);
        }
    }

With Component Scan and annotation driven the class is loaded

[dullnigAlex · Accepted solution]

I solved it by calling a rest servlet.
The Rest servlet has an active method context so there is no preoblem.

[HelesicPetr]

Do you mean following?

WcRestServlet.getInstance();

PetrH