1 /*
2 * Copyright (C) 2015, Google Inc.
3 *
4 * This program and the accompanying materials are made available
5 * under the terms of the Eclipse Distribution License v1.0 which
6 * accompanies this distribution, is reproduced below, and is
7 * available at http://www.eclipse.org/org/documents/edl-v10.php
8 *
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials provided
21 * with the distribution.
22 *
23 * - Neither the name of the Eclipse Foundation, Inc. nor the
24 * names of its contributors may be used to endorse or promote
25 * products derived from this software without specific prior
26 * written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
29 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
30 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
31 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
33 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
34 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
35 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
36 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
37 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
40 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
41 */
42
43 package org.eclipse.jgit.transport;
44
45 import java.util.List;
46
47 import org.eclipse.jgit.storage.pack.PackStatistics;
48
49 /**
50 * {@link PostUploadHook} that delegates to a list of other hooks.
51 * <p>
52 * Hooks are run in the order passed to the constructor.
53 *
54 * @since 4.1
55 */
56 public class PostUploadHookChain implements PostUploadHook {
57 private final PostUploadHook[] hooks;
58 private final int count;
59
60 /**
61 * Create a new hook chaining the given hooks together.
62 *
63 * @param hooks
64 * hooks to execute, in order.
65 * @return a new chain of the given hooks.
66 */
67 public static PostUploadHook newChain(List<? extends PostUploadHook> hooks) {
68 PostUploadHook[] newHooks = new PostUploadHook[hooks.size()];
69 int i = 0;
70 for (PostUploadHook hook : hooks)
71 if (hook != PostUploadHook.NULL)
72 newHooks[i++] = hook;
73 if (i == 0)
74 return PostUploadHook.NULL;
75 else if (i == 1)
76 return newHooks[0];
77 else
78 return new PostUploadHookChain(newHooks, i);
79 }
80
81 public void onPostUpload(PackStatistics stats) {
82 for (int i = 0; i < count; i++)
83 hooks[i].onPostUpload(stats);
84 }
85
86 private PostUploadHookChain(PostUploadHook[] hooks, int count) {
87 this.hooks = hooks;
88 this.count = count;
89 }
90 }