/**
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.seam.cron.spi.queue;
import java.lang.annotation.Annotation;
import java.util.Set;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.spi.AnnotatedMethod;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.ObserverMethod;
import javax.enterprise.inject.spi.ProcessObserverMethod;
import org.jboss.seam.cron.api.queue.Queue;
import org.jboss.seam.cron.api.restriction.AsyncRestriction;
import org.jboss.seam.cron.impl.scheduling.exception.CronProviderInitialisationException;
import org.jboss.seam.cron.util.CdiUtils;
import org.jboss.solder.logging.Logger;
/**
* Scans all queue annotations and captures the configuration as a
* #{@link RestrictDetail}, then forwards those configurations on to the
* #{@link CronQueueProvider} implementation so that the underlying service
* can be configured appropriately. Not directly useful to providers.
*
* @author Dave Oxley
*/
@ApplicationScoped
public class CronQueueInstaller {
private final Logger log = Logger.getLogger(CronQueueInstaller.class);
/**
* Initializes schedulers for all of the observed scheduled events.
*
* @param manager The JSR-299 Bean Manager.
*/
public void initProviderQueue(final BeanManager manager, final CronQueueProvider queueProvider,
final Set<ProcessObserverMethod> allObservers) {
try {
for (ProcessObserverMethod pom : allObservers) {
ObserverMethod<?> obsMeth = pom.getObserverMethod();
AnnotatedMethod<?> annMeth = pom.getAnnotatedMethod();
Queue queueQualifier = null;
AsyncRestriction restrictQualifier = null;
for (Object bindingObj : obsMeth.getObservedQualifiers()) {
final Annotation originalQualifier = (Annotation) bindingObj;
AsyncRestriction restrictQualifier0 = (AsyncRestriction) CdiUtils.getQualifier(originalQualifier, AsyncRestriction.class);
if (restrictQualifier0 != null && restrictQualifier == null)
restrictQualifier = restrictQualifier0;
Queue queueQualifier0 = (Queue) CdiUtils.getQualifier(originalQualifier, Queue.class);
if (queueQualifier0 != null && queueQualifier == null)
queueQualifier = queueQualifier0;
}
if (queueQualifier != null && restrictQualifier != null) {
RestrictDetail restrictDetail = new RestrictDetail(obsMeth.getBeanClass(), annMeth.getJavaMember(), obsMeth.getObservedQualifiers(), queueQualifier.value());
queueProvider.processAsynRestriction(restrictDetail);
}
}
queueProvider.finaliseQueues();
} catch (Throwable t) {
throw new CronProviderInitialisationException("Error registering queue restrictions with underlying provider", t);
}
}
}