use of io.micronaut.scheduling.exceptions.SchedulerConfigurationException in project micronaut-core by micronaut-projects.
the class ScheduledMethodProcessor method process.
@SuppressWarnings("unchecked")
@Override
public void process(BeanDefinition<?> beanDefinition, ExecutableMethod<?, ?> method) {
if (!(beanContext instanceof ApplicationContext)) {
return;
}
List<AnnotationValue<Scheduled>> scheduledAnnotations = method.getAnnotationValuesByType(Scheduled.class);
for (AnnotationValue<Scheduled> scheduledAnnotation : scheduledAnnotations) {
String fixedRate = scheduledAnnotation.get(MEMBER_FIXED_RATE, String.class).orElse(null);
String initialDelayStr = scheduledAnnotation.get(MEMBER_INITIAL_DELAY, String.class).orElse(null);
Duration initialDelay = null;
if (StringUtils.hasText(initialDelayStr)) {
initialDelay = conversionService.convert(initialDelayStr, Duration.class).orElseThrow(() -> new SchedulerConfigurationException(method, "Invalid initial delay definition: " + initialDelayStr));
}
String scheduler = scheduledAnnotation.get(MEMBER_SCHEDULER, String.class).orElse(TaskExecutors.SCHEDULED);
Optional<TaskScheduler> optionalTaskScheduler = beanContext.findBean(TaskScheduler.class, Qualifiers.byName(scheduler));
if (!optionalTaskScheduler.isPresent()) {
optionalTaskScheduler = beanContext.findBean(ExecutorService.class, Qualifiers.byName(scheduler)).filter(ScheduledExecutorService.class::isInstance).map(ScheduledExecutorTaskScheduler::new);
}
TaskScheduler taskScheduler = optionalTaskScheduler.orElseThrow(() -> new SchedulerConfigurationException(method, "No scheduler of type TaskScheduler configured for name: " + scheduler));
Runnable task = () -> {
io.micronaut.context.Qualifier<Object> qualifer = beanDefinition.getAnnotationTypeByStereotype(AnnotationUtil.QUALIFIER).map(type -> Qualifiers.byAnnotation(beanDefinition, type)).orElse(null);
Class<Object> beanType = (Class<Object>) beanDefinition.getBeanType();
Object bean = null;
try {
bean = beanContext.getBean(beanType, qualifer);
if (method.getArguments().length == 0) {
((ExecutableMethod) method).invoke(bean);
}
} catch (Throwable e) {
io.micronaut.context.Qualifier<TaskExceptionHandler> qualifier = Qualifiers.byTypeArguments(beanType, e.getClass());
Collection<BeanDefinition<TaskExceptionHandler>> definitions = beanContext.getBeanDefinitions(TaskExceptionHandler.class, qualifier);
Optional<BeanDefinition<TaskExceptionHandler>> mostSpecific = definitions.stream().filter(def -> {
List<Argument<?>> typeArguments = def.getTypeArguments(TaskExceptionHandler.class);
if (typeArguments.size() == 2) {
return typeArguments.get(0).getType() == beanType && typeArguments.get(1).getType() == e.getClass();
}
return false;
}).findFirst();
TaskExceptionHandler finalHandler = mostSpecific.map(bd -> beanContext.getBean(bd.getBeanType(), qualifier)).orElse(this.taskExceptionHandler);
finalHandler.handle(bean, e);
}
};
String cronExpr = scheduledAnnotation.get(MEMBER_CRON, String.class, null);
String fixedDelay = scheduledAnnotation.get(MEMBER_FIXED_DELAY, String.class).orElse(null);
if (StringUtils.isNotEmpty(cronExpr)) {
if (LOG.isDebugEnabled()) {
LOG.debug("Scheduling cron task [{}] for method: {}", cronExpr, method);
}
taskScheduler.schedule(cronExpr, task);
} else if (StringUtils.isNotEmpty(fixedRate)) {
Optional<Duration> converted = conversionService.convert(fixedRate, Duration.class);
Duration duration = converted.orElseThrow(() -> new SchedulerConfigurationException(method, "Invalid fixed rate definition: " + fixedRate));
if (LOG.isDebugEnabled()) {
LOG.debug("Scheduling fixed rate task [{}] for method: {}", duration, method);
}
ScheduledFuture<?> scheduledFuture = taskScheduler.scheduleAtFixedRate(initialDelay, duration, task);
scheduledTasks.add(scheduledFuture);
} else if (StringUtils.isNotEmpty(fixedDelay)) {
Optional<Duration> converted = conversionService.convert(fixedDelay, Duration.class);
Duration duration = converted.orElseThrow(() -> new SchedulerConfigurationException(method, "Invalid fixed delay definition: " + fixedDelay));
if (LOG.isDebugEnabled()) {
LOG.debug("Scheduling fixed delay task [{}] for method: {}", duration, method);
}
ScheduledFuture<?> scheduledFuture = taskScheduler.scheduleWithFixedDelay(initialDelay, duration, task);
scheduledTasks.add(scheduledFuture);
} else if (initialDelay != null) {
ScheduledFuture<?> scheduledFuture = taskScheduler.schedule(initialDelay, task);
scheduledTasks.add(scheduledFuture);
} else {
throw new SchedulerConfigurationException(method, "Failed to schedule task. Invalid definition");
}
}
}
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