| /* |
| * 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.lib.Constants.encode; |
| 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 org.eclipse.jgit.lib.Constants; |
| |
| /** Unique identifier of a reference in the DHT. */ |
| public final class RefKey implements RowKey { |
| /** |
| * @param repo |
| * @param name |
| * @return the key |
| */ |
| public static RefKey create(RepositoryKey repo, String name) { |
| return new RefKey(repo.asInt(), name); |
| } |
| |
| /** |
| * @param key |
| * @return the key |
| */ |
| public static RefKey fromBytes(byte[] key) { |
| int repo = parse32(key, 0); |
| String name = decode(key, 9, key.length); |
| return new RefKey(repo, name); |
| } |
| |
| /** |
| * @param key |
| * @return the key |
| */ |
| public static RefKey fromString(String key) { |
| int c = key.indexOf(':'); |
| int repo = parse32(Constants.encodeASCII(key.substring(0, c)), 0); |
| String name = key.substring(c + 1); |
| return new RefKey(repo, name); |
| } |
| |
| private final int repo; |
| |
| private final String name; |
| |
| RefKey(int repo, String name) { |
| this.repo = repo; |
| this.name = name; |
| } |
| |
| /** @return the repository this reference lives within. */ |
| public RepositoryKey getRepositoryKey() { |
| return RepositoryKey.fromInt(repo); |
| } |
| |
| /** @return the name of the reference. */ |
| public String getName() { |
| return name; |
| } |
| |
| public byte[] asBytes() { |
| byte[] nameRaw = encode(name); |
| byte[] r = new byte[9 + nameRaw.length]; |
| format32(r, 0, repo); |
| r[8] = ':'; |
| System.arraycopy(nameRaw, 0, r, 9, nameRaw.length); |
| return r; |
| } |
| |
| public String asString() { |
| return getRepositoryKey().asString() + ":" + name; |
| } |
| |
| @Override |
| public int hashCode() { |
| return name.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (this == other) |
| return true; |
| if (other instanceof RefKey) { |
| RefKey thisRef = this; |
| RefKey otherRef = (RefKey) other; |
| return thisRef.repo == otherRef.repo |
| && thisRef.name.equals(otherRef.name); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return "ref:" + asString(); |
| } |
| } |