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- /*
- * Copyright (C) 2011, 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.dht;
-
- import java.util.Collections;
- import java.util.Comparator;
- import java.util.Date;
- import java.util.List;
-
- import org.eclipse.jgit.generated.storage.dht.proto.GitStore;
- import org.eclipse.jgit.lib.ObjectId;
-
- /** Connects an object to the chunk it is stored in. */
- public class ObjectInfo {
- /** Orders ObjectInfo by their time member, oldest first. */
- public static final Comparator<ObjectInfo> BY_TIME = new Comparator<ObjectInfo>() {
- public int compare(ObjectInfo a, ObjectInfo b) {
- return Long.signum(a.getTime() - b.getTime());
- }
- };
-
- /**
- * Sort the info list according to time, oldest member first.
- *
- * @param toSort
- * list to sort.
- */
- public static void sort(List<ObjectInfo> toSort) {
- Collections.sort(toSort, BY_TIME);
- }
-
- private final ChunkKey chunk;
-
- private final long time;
-
- private final GitStore.ObjectInfo data;
-
- /**
- * Wrap an ObjectInfo from the storage system.
- *
- * @param chunkKey
- * the chunk the object points to.
- * @param data
- * the data of the ObjectInfo.
- */
- public ObjectInfo(ChunkKey chunkKey, GitStore.ObjectInfo data) {
- this.chunk = chunkKey;
- this.time = 0;
- this.data = data;
- }
-
- /**
- * Wrap an ObjectInfo from the storage system.
- *
- * @param chunkKey
- * the chunk the object points to.
- * @param time
- * timestamp of the ObjectInfo.
- * @param data
- * the data of the ObjectInfo.
- */
- public ObjectInfo(ChunkKey chunkKey, long time, GitStore.ObjectInfo data) {
- this.chunk = chunkKey;
- this.time = time < 0 ? 0 : time;
- this.data = data;
- }
-
- /** @return the chunk this link points to. */
- public ChunkKey getChunkKey() {
- return chunk;
- }
-
- /** @return approximate time the object was created, in milliseconds. */
- public long getTime() {
- return time;
- }
-
- /** @return GitStore.ObjectInfo to embed in the database. */
- public GitStore.ObjectInfo getData() {
- return data;
- }
-
- /** @return type of the object, in OBJ_* constants. */
- public int getType() {
- return data.getObjectType().getNumber();
- }
-
- /** @return size of the object when fully inflated. */
- public long getSize() {
- return data.getInflatedSize();
- }
-
- /** @return true if the object storage uses delta compression. */
- public boolean isDelta() {
- return data.hasDeltaBase();
- }
-
- /** @return true if the object has been fragmented across chunks. */
- public boolean isFragmented() {
- return data.getIsFragmented();
- }
-
- int getOffset() {
- return data.getOffset();
- }
-
- long getPackedSize() {
- return data.getPackedSize();
- }
-
- ObjectId getDeltaBase() {
- if (data.hasDeltaBase())
- return ObjectId.fromRaw(data.getDeltaBase().toByteArray(), 0);
- return null;
- }
-
- @Override
- public String toString() {
- StringBuilder b = new StringBuilder();
- b.append("ObjectInfo:");
- b.append(chunk);
- if (0 < time)
- b.append(" @ ").append(new Date(time));
- b.append("\n");
- b.append(data.toString());
- return b.toString();
- }
- }
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