| /* |
| * 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 static org.eclipse.jgit.storage.dht.KeyUtils.format32; |
| import static org.eclipse.jgit.storage.dht.KeyUtils.parse32; |
| import static org.eclipse.jgit.util.RawParseUtils.decode; |
| |
| import java.text.MessageFormat; |
| |
| import org.eclipse.jgit.lib.AnyObjectId; |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.lib.ObjectId; |
| |
| /** Identifies an ObjectId in the DHT. */ |
| public final class ObjectIndexKey extends ObjectId implements RowKey { |
| private static final int KEYLEN = 49; |
| |
| /** |
| * @param repo |
| * @param objId |
| * @return the key |
| */ |
| public static ObjectIndexKey create(RepositoryKey repo, AnyObjectId objId) { |
| return new ObjectIndexKey(repo.asInt(), objId); |
| } |
| |
| /** |
| * @param key |
| * @return the key |
| */ |
| public static ObjectIndexKey fromBytes(byte[] key) { |
| if (key.length != KEYLEN) |
| throw new IllegalArgumentException(MessageFormat.format( |
| DhtText.get().invalidChunkKey, decode(key))); |
| |
| int repo = parse32(key, 0); |
| ObjectId id = ObjectId.fromString(key, 9); |
| return new ObjectIndexKey(repo, id); |
| } |
| |
| /** |
| * @param key |
| * @return the key |
| */ |
| public static ObjectIndexKey fromString(String key) { |
| return fromBytes(Constants.encodeASCII(key)); |
| } |
| |
| private final int repo; |
| |
| ObjectIndexKey(int repo, AnyObjectId objId) { |
| super(objId); |
| this.repo = repo; |
| } |
| |
| /** @return the repository that contains the object. */ |
| public RepositoryKey getRepositoryKey() { |
| return RepositoryKey.fromInt(repo); |
| } |
| |
| int getRepositoryId() { |
| return repo; |
| } |
| |
| public byte[] asBytes() { |
| byte[] r = new byte[KEYLEN]; |
| format32(r, 0, repo); |
| r[8] = '.'; |
| copyTo(r, 9); |
| return r; |
| } |
| |
| public String asString() { |
| return decode(asBytes()); |
| } |
| |
| @Override |
| public String toString() { |
| return "object-index:" + asString(); |
| } |
| } |