| /* |
| * 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.util.RawParseUtils.decode; |
| |
| import java.text.MessageFormat; |
| |
| import org.eclipse.jgit.generated.storage.dht.proto.GitStore.CachedPackInfo; |
| import org.eclipse.jgit.lib.ObjectId; |
| |
| /** Unique identifier of a {@link CachedPackInfo} in the DHT. */ |
| public final class CachedPackKey implements RowKey { |
| static final int KEYLEN = 81; |
| |
| /** |
| * @param key |
| * @return the key |
| */ |
| public static CachedPackKey fromBytes(byte[] key) { |
| return fromBytes(key, 0, key.length); |
| } |
| |
| /** |
| * @param key |
| * @param ptr |
| * @param len |
| * @return the key |
| */ |
| public static CachedPackKey fromBytes(byte[] key, int ptr, int len) { |
| if (len != KEYLEN) |
| throw new IllegalArgumentException(MessageFormat.format( |
| DhtText.get().invalidChunkKey, decode(key, ptr, ptr + len))); |
| |
| ObjectId name = ObjectId.fromString(key, ptr); |
| ObjectId vers = ObjectId.fromString(key, ptr + 41); |
| return new CachedPackKey(name, vers); |
| } |
| |
| /** |
| * @param key |
| * @return the key |
| */ |
| public static CachedPackKey fromString(String key) { |
| int d = key.indexOf('.'); |
| ObjectId name = ObjectId.fromString(key.substring(0, d)); |
| ObjectId vers = ObjectId.fromString(key.substring(d + 1)); |
| return new CachedPackKey(name, vers); |
| } |
| |
| /** |
| * @param info |
| * @return the key |
| */ |
| public static CachedPackKey fromInfo(CachedPackInfo info) { |
| ObjectId name = ObjectId.fromString(info.getName()); |
| ObjectId vers = ObjectId.fromString(info.getVersion()); |
| return new CachedPackKey(name, vers); |
| } |
| |
| private final ObjectId name; |
| |
| private final ObjectId version; |
| |
| CachedPackKey(ObjectId name, ObjectId version) { |
| this.name = name; |
| this.version = version; |
| } |
| |
| /** @return unique SHA-1 name of the pack. */ |
| public ObjectId getName() { |
| return name; |
| } |
| |
| /** @return unique version of the pack. */ |
| public ObjectId getVersion() { |
| return version; |
| } |
| |
| public byte[] asBytes() { |
| byte[] r = new byte[KEYLEN]; |
| name.copyTo(r, 0); |
| r[40] = '.'; |
| version.copyTo(r, 41); |
| return r; |
| } |
| |
| public String asString() { |
| return name.name() + "." + version.name(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return name.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (this == other) |
| return true; |
| if (other instanceof CachedPackKey) { |
| CachedPackKey key = (CachedPackKey) other; |
| return name.equals(key.name) && version.equals(key.version); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return "cached-pack:" + asString(); |
| } |
| } |