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authorColby Ranger2012-11-02 17:27:36 +0000
committerGerrit Code Review @ Eclipse.org2012-11-02 17:27:36 +0000
commitf3a8d7413c423966ea474e132b0d2c908d67ed2e (patch)
treec97aa84da6e716d21b2f0c415e4041a7e569f655
parent908d219dbd2c19985b0834539075d33164e9f276 (diff)
parent034ff96674c1cb1b4d8b708e79e5c137a00998d7 (diff)
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Merge "Add the an event and listener for a dfs PackIndex being loaded."
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/BeforeDfsPackIndexLoadedEvent.java82
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/BeforeDfsPackIndexLoadedListener.java57
-rw-r--r--org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackFile.java4
3 files changed, 143 insertions, 0 deletions
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/BeforeDfsPackIndexLoadedEvent.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/BeforeDfsPackIndexLoadedEvent.java
new file mode 100644
index 0000000000..07d7743047
--- /dev/null
+++ b/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);
+ }
+}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/BeforeDfsPackIndexLoadedListener.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/BeforeDfsPackIndexLoadedListener.java
new file mode 100644
index 0000000000..e0ddf4138f
--- /dev/null
+++ b/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);
+}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackFile.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackFile.java
index 13f3c36981..3dabb9fc74 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/storage/dfs/DfsPackFile.java
+++ b/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.ObjectId;
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.PackReverseIndex;
import org.eclipse.jgit.storage.pack.BinaryDelta;
@@ -212,6 +213,9 @@ public final class DfsPackFile {
if (invalid)
throw new PackInvalidException(getPackName());
+ Repository.getGlobalListenerList()
+ .dispatch(new BeforeDfsPackIndexLoadedEvent(this));
+
synchronized (initLock) {
idxref = index;
if (idxref != null) {

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