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1   /*
2    * Copyright (C) 2015, Matthias Sohn <matthias.sohn@sap.com>
3    * and other copyright owners as documented in the project's IP log.
4    *
5    * This program and the accompanying materials are made available
6    * under the terms of the Eclipse Distribution License v1.0 which
7    * accompanies this distribution, is reproduced below, and is
8    * available at http://www.eclipse.org/org/documents/edl-v10.php
9    *
10   * All rights reserved.
11   *
12   * Redistribution and use in source and binary forms, with or
13   * without modification, are permitted provided that the following
14   * conditions are met:
15   *
16   * - Redistributions of source code must retain the above copyright
17   *   notice, this list of conditions and the following disclaimer.
18   *
19   * - Redistributions in binary form must reproduce the above
20   *   copyright notice, this list of conditions and the following
21   *   disclaimer in the documentation and/or other materials provided
22   *   with the distribution.
23   *
24   * - Neither the name of the Eclipse Foundation, Inc. nor the
25   *   names of its contributors may be used to endorse or promote
26   *   products derived from this software without specific prior
27   *   written permission.
28   *
29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42   */
43  package org.eclipse.jgit.lfs.server;
44  
45  import java.io.IOException;
46  
47  import org.eclipse.jgit.annotations.Nullable;
48  import org.eclipse.jgit.lfs.lib.AnyLongObjectId;
49  
50  /**
51   * Abstraction of a repository for storing large objects
52   *
53   * @since 4.3
54   */
55  public interface LargeFileRepository {
56  
57  	/**
58  	 * Get download action
59  	 *
60  	 * @param id
61  	 *            id of the object to download
62  	 * @return Action for downloading the object
63  	 */
64  	public Response.Action getDownloadAction(AnyLongObjectId id);
65  
66  	/**
67  	 * Get upload action
68  	 *
69  	 * @param id
70  	 *            id of the object to upload
71  	 * @param size
72  	 *            size of the object to be uploaded
73  	 * @return Action for uploading the object
74  	 */
75  	public Response.Action getUploadAction(AnyLongObjectId id, long size);
76  
77  	/**
78  	 * Get verify action
79  	 *
80  	 * @param id
81  	 *            id of the object to be verified
82  	 * @return Action for verifying the object, or {@code null} if the server
83  	 *         doesn't support or require verification
84  	 */
85  	public @Nullable Response.Action getVerifyAction(AnyLongObjectId id);
86  
87  	/**
88  	 * Get size of an object
89  	 *
90  	 * @param id
91  	 *            id of the object
92  	 * @return length of the object content in bytes, -1 if the object doesn't
93  	 *         exist
94  	 * @throws java.io.IOException
95  	 */
96  	public long getSize(AnyLongObjectId id) throws IOException;
97  }