| /* |
| * Copyright (C) 2015, Matthias Sohn <matthias.sohn@sap.com> |
| * 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.lfs.server.fs; |
| |
| import static org.eclipse.jgit.util.HttpSupport.HDR_AUTHORIZATION; |
| |
| import java.io.IOException; |
| import java.nio.channels.FileChannel; |
| import java.nio.channels.ReadableByteChannel; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.StandardOpenOption; |
| import java.util.Collections; |
| |
| import org.eclipse.jgit.annotations.Nullable; |
| import org.eclipse.jgit.lfs.internal.AtomicObjectOutputStream; |
| import org.eclipse.jgit.lfs.lib.AnyLongObjectId; |
| import org.eclipse.jgit.lfs.lib.Constants; |
| import org.eclipse.jgit.lfs.server.LargeFileRepository; |
| import org.eclipse.jgit.lfs.server.Response; |
| import org.eclipse.jgit.lfs.server.Response.Action; |
| |
| /** |
| * Repository storing large objects in the file system |
| * |
| * @since 4.3 |
| */ |
| public class FileLfsRepository implements LargeFileRepository { |
| |
| private String url; |
| private final Path dir; |
| |
| /** |
| * <p>Constructor for FileLfsRepository.</p> |
| * |
| * @param url |
| * external URL of this repository |
| * @param dir |
| * storage directory |
| * @throws java.io.IOException |
| */ |
| public FileLfsRepository(String url, Path dir) throws IOException { |
| this.url = url; |
| this.dir = dir; |
| Files.createDirectories(dir); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public Response.Action getDownloadAction(AnyLongObjectId id) { |
| return getAction(id); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public Action getUploadAction(AnyLongObjectId id, long size) { |
| return getAction(id); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| @Nullable |
| public Action getVerifyAction(AnyLongObjectId id) { |
| return null; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public long getSize(AnyLongObjectId id) throws IOException { |
| Path p = getPath(id); |
| if (Files.exists(p)) { |
| return Files.size(p); |
| } |
| return -1; |
| } |
| |
| /** |
| * Get the storage directory |
| * |
| * @return the path of the storage directory |
| */ |
| public Path getDir() { |
| return dir; |
| } |
| |
| /** |
| * Get the path where the given object is stored |
| * |
| * @param id |
| * id of a large object |
| * @return path the object's storage path |
| */ |
| protected Path getPath(AnyLongObjectId id) { |
| StringBuilder s = new StringBuilder( |
| Constants.LONG_OBJECT_ID_STRING_LENGTH + 6); |
| s.append(toHexCharArray(id.getFirstByte())).append('/'); |
| s.append(toHexCharArray(id.getSecondByte())).append('/'); |
| s.append(id.name()); |
| return dir.resolve(s.toString()); |
| } |
| |
| private Response.Action getAction(AnyLongObjectId id) { |
| Response.Action a = new Response.Action(); |
| a.href = url + id.getName(); |
| a.header = Collections.singletonMap(HDR_AUTHORIZATION, "not:required"); //$NON-NLS-1$ |
| return a; |
| } |
| |
| ReadableByteChannel getReadChannel(AnyLongObjectId id) |
| throws IOException { |
| return FileChannel.open(getPath(id), StandardOpenOption.READ); |
| } |
| |
| AtomicObjectOutputStream getOutputStream(AnyLongObjectId id) |
| throws IOException { |
| Path path = getPath(id); |
| Path parent = path.getParent(); |
| if (parent != null) { |
| Files.createDirectories(parent); |
| } |
| return new AtomicObjectOutputStream(path, id); |
| } |
| |
| private static char[] toHexCharArray(int b) { |
| final char[] dst = new char[2]; |
| formatHexChar(dst, 0, b); |
| return dst; |
| } |
| |
| private static final char[] hexchar = { '0', '1', '2', '3', '4', '5', '6', |
| '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; |
| |
| private static void formatHexChar(char[] dst, int p, int b) { |
| int o = p + 1; |
| while (o >= p && b != 0) { |
| dst[o--] = hexchar[b & 0xf]; |
| b >>>= 4; |
| } |
| while (o >= p) |
| dst[o--] = '0'; |
| } |
| |
| /** |
| * @return the url of the content server |
| * @since 4.11 |
| */ |
| public String getUrl() { |
| return url; |
| } |
| |
| /** |
| * @param url |
| * the url of the content server |
| * @since 4.11 |
| */ |
| public void setUrl(String url) { |
| this.url = url; |
| } |
| } |