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Add the an event and listener for a dfs PackIndex being loaded.

The DfsPackFile will fire any static repository listeners on the event
just before the PackIndex is loaded.

Change-Id: Ie51098106bd5a1a32feae7d2dd068abf02b030ee
stable-2.2
Colby Ranger 12 years ago
parent
commit
034ff96674
  1. 82
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/BeforeDfsPackIndexLoadedEvent.java
  2. 57
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/BeforeDfsPackIndexLoadedListener.java
  3. 4
      org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackFile.java

82
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/BeforeDfsPackIndexLoadedEvent.java

@ -0,0 +1,82 @@
/*
* Copyright (C) 2012, Google Inc.
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.storage.dfs;
import org.eclipse.jgit.events.RepositoryEvent;
/**
* Describes the {@link DfsPackFile} just before its index is loaded. Currently,
* DfsPackFile directly dispatches the event on
* {@link org.eclipse.jgit.lib.Repository#getGlobalListenerList}. Which means
* the call to {@link #getRepository} will always return null.
*/
public class BeforeDfsPackIndexLoadedEvent
extends RepositoryEvent<BeforeDfsPackIndexLoadedListener> {
private final DfsPackFile pack;
/**
* A new event triggered before a PackFile index is loaded.
*
* @param pack
* the pack
*/
public BeforeDfsPackIndexLoadedEvent(DfsPackFile pack) {
this.pack = pack;
}
/** @return the PackFile containing the index that will be loaded. */
public DfsPackFile getPackFile() {
return pack;
}
@Override
public Class<BeforeDfsPackIndexLoadedListener> getListenerType() {
return BeforeDfsPackIndexLoadedListener.class;
}
@Override
public void dispatch(BeforeDfsPackIndexLoadedListener listener) {
listener.onBeforeDfsPackIndexLoaded(this);
}
}

57
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/BeforeDfsPackIndexLoadedListener.java

@ -0,0 +1,57 @@
/*
* Copyright (C) 2012, Google Inc.
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.storage.dfs;
import org.eclipse.jgit.events.RepositoryListener;
/** Receives {@link BeforeDfsPackIndexLoadedEvent}s. */
public interface BeforeDfsPackIndexLoadedListener extends RepositoryListener {
/**
* Invoked just before a pack index is loaded from the block cache.
*
* @param event
* information about the packs.
*/
void onBeforeDfsPackIndexLoaded(BeforeDfsPackIndexLoadedEvent event);
}

4
org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackFile.java

@ -67,6 +67,7 @@ import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.Constants; import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId; import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectLoader; import org.eclipse.jgit.lib.ObjectLoader;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.storage.file.PackIndex; import org.eclipse.jgit.storage.file.PackIndex;
import org.eclipse.jgit.storage.file.PackReverseIndex; import org.eclipse.jgit.storage.file.PackReverseIndex;
import org.eclipse.jgit.storage.pack.BinaryDelta; import org.eclipse.jgit.storage.pack.BinaryDelta;
@ -212,6 +213,9 @@ public final class DfsPackFile {
if (invalid) if (invalid)
throw new PackInvalidException(getPackName()); throw new PackInvalidException(getPackName());
Repository.getGlobalListenerList()
.dispatch(new BeforeDfsPackIndexLoadedEvent(this));
synchronized (initLock) { synchronized (initLock) {
idxref = index; idxref = index;
if (idxref != null) { if (idxref != null) {

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