/*
* Sonatype Nexus (TM) Open Source Version
* Copyright (c) 2007-2014 Sonatype, Inc.
* All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
*
* This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
* which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
* of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
* Eclipse Foundation. All other trademarks are the property of their respective owners.
*/
package org.sonatype.nexus.proxy.cache;
import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;
import org.sonatype.nexus.events.EventSubscriber;
import org.sonatype.nexus.proxy.events.RepositoryRegistryEventRemove;
import org.sonatype.nexus.proxy.repository.Repository;
import org.sonatype.nexus.proxy.utils.RepositoryStringUtils;
import org.sonatype.sisu.goodies.common.ComponentSupport;
import com.google.common.eventbus.AllowConcurrentEvents;
import com.google.common.eventbus.Subscribe;
/**
* Event inspector that listens for repository registry removals, and purges the {@link PathCache} belonging to given
* repository. This event inspector is synchronous intentionally, as it relies on configuration of the repository, but
* is also "short operation". Prolonging the repository removal procedure is also not an issue (unlike prolonging
* artifact serving). Related to issue NEXUS-5109.
*
* @author cstamas
* @since 2.1
*/
@Named
@Singleton
public class PathCacheEventInspector
extends ComponentSupport
implements EventSubscriber
{
private final CacheManager cacheManager;
@Inject
public PathCacheEventInspector(final CacheManager cacheManager) {
this.cacheManager = cacheManager;
}
@Subscribe
@AllowConcurrentEvents
public void inspect(final RepositoryRegistryEventRemove removedRepositoryEvent) {
final Repository removedRepository = removedRepositoryEvent.getRepository();
final PathCache pathCache = cacheManager.getPathCache(removedRepository.getId());
if (log.isDebugEnabled()) {
log.debug(
"Purging NFC PathCache of repository {}",
RepositoryStringUtils.getHumanizedNameString(removedRepository));
}
pathCache.purge();
}
}