| /* |
| * Copyright (C) 2011, Google Inc. and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| package org.eclipse.jgit.transport; |
| |
| import java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * {@link org.eclipse.jgit.transport.PreReceiveHook} that delegates to a list of |
| * other hooks. |
| * <p> |
| * Hooks are run in the order passed to the constructor. |
| */ |
| public class PreReceiveHookChain implements PreReceiveHook { |
| private final PreReceiveHook[] hooks; |
| private final int count; |
| |
| /** |
| * Create a new hook chaining the given hooks together. |
| * |
| * @param hooks |
| * hooks to execute, in order. |
| * @return a new hook chain of the given hooks. |
| */ |
| public static PreReceiveHook newChain(List<? extends PreReceiveHook> hooks) { |
| PreReceiveHook[] newHooks = new PreReceiveHook[hooks.size()]; |
| int i = 0; |
| for (PreReceiveHook hook : hooks) |
| if (hook != PreReceiveHook.NULL) |
| newHooks[i++] = hook; |
| switch (i) { |
| case 0: |
| return PreReceiveHook.NULL; |
| case 1: |
| return newHooks[0]; |
| default: |
| return new PreReceiveHookChain(newHooks, i); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void onPreReceive(ReceivePack rp, |
| Collection<ReceiveCommand> commands) { |
| for (int i = 0; i < count; i++) |
| hooks[i].onPreReceive(rp, commands); |
| } |
| |
| private PreReceiveHookChain(PreReceiveHook[] hooks, int count) { |
| this.hooks = hooks; |
| this.count = count; |
| } |
| } |