/*
* 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.repository;
import org.sonatype.nexus.proxy.ResourceStoreRequest;
import org.sonatype.nexus.proxy.events.RepositoryItemEventDeleteItem;
import org.sonatype.nexus.proxy.item.StorageCollectionItem;
import org.sonatype.nexus.proxy.item.StorageItem;
import org.sonatype.nexus.proxy.walker.AbstractWalkerProcessor;
import org.sonatype.nexus.proxy.walker.WalkerContext;
import org.sonatype.sisu.goodies.eventbus.EventBus;
import com.google.common.base.Preconditions;
/**
* WalkerProcessor performing a "notification" (by firing corresponding events) of items about to be deleted as part of
* a delete operation invoked against collection item. It handles all item types except collections.
*
* @author cstamas
*/
public class DeletionNotifierWalker
extends AbstractWalkerProcessor
{
private final EventBus eventBus;
private final ResourceStoreRequest request;
public DeletionNotifierWalker(final EventBus eventBus,
final ResourceStoreRequest request)
{
this.eventBus = Preconditions.checkNotNull(eventBus);
this.request = Preconditions.checkNotNull(request);
}
@Override
public final void processItem(final WalkerContext context, final StorageItem item)
throws Exception
{
if (!(item instanceof StorageCollectionItem)) {
// cstamas: this should be not needed, as Walker should handle this!
item.getItemContext().setParentContext(request.getRequestContext());
// just fire it, and someone will eventually catch it
eventBus.post(new RepositoryItemEventDeleteItem(context.getRepository(), item));
}
}
}