/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.sling.replication.queue.impl.simple;
import javax.annotation.Nonnull;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.commons.scheduler.ScheduleOptions;
import org.apache.sling.commons.scheduler.Scheduler;
import org.apache.sling.replication.queue.ReplicationQueue;
import org.apache.sling.replication.queue.ReplicationQueueException;
import org.apache.sling.replication.queue.ReplicationQueueProcessor;
import org.apache.sling.replication.queue.ReplicationQueueProvider;
import org.apache.sling.replication.queue.impl.AbstractReplicationQueueProvider;
/**
* an OSGi service implementing {@link ReplicationQueueProvider} for simple in memory
* {@link ReplicationQueue}s
*/
@Component(metatype = false, label = "In memory Replication Queue Provider")
@Service(value = ReplicationQueueProvider.class)
@Property(name = "name", value = SimpleReplicationQueueProvider.NAME)
public class SimpleReplicationQueueProvider extends AbstractReplicationQueueProvider implements
ReplicationQueueProvider {
@Reference
Scheduler scheduler;
public static final String NAME = "simple";
protected SimpleReplicationQueueProvider(Scheduler scheduler) {
this.scheduler = scheduler;
}
public SimpleReplicationQueueProvider() {
}
protected ReplicationQueue getInternalQueue(String agentName, String selector)
throws ReplicationQueueException {
return new SimpleReplicationQueue(agentName, selector);
}
protected void deleteQueue(ReplicationQueue queue) {
// do nothing as queues just exist in the cache
}
public void enableQueueProcessing(@Nonnull String agentName, @Nonnull ReplicationQueueProcessor queueProcessor) {
ScheduleOptions options = scheduler.NOW(-1, 10)
.canRunConcurrently(false)
.name(getJobName(agentName));
scheduler.schedule(new ScheduledReplicationQueueProcessorTask(this, queueProcessor), options);
}
public void disableQueueProcessing(@Nonnull String agentName) {
scheduler.unschedule(getJobName(agentName));
}
private String getJobName(String agentName) {
return SimpleReplicationQueueProvider.NAME + "-queueProcessor-" + agentName;
}
}