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- /*
- * Copyright (C) 2012, 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.List;
-
- /**
- * {@link org.eclipse.jgit.transport.AdvertiseRefsHook} that delegates to a list
- * of other hooks.
- * <p>
- * Hooks are run in the order passed to the constructor. A hook may inspect or
- * modify the results of the previous hooks in the chain by calling
- * {@link org.eclipse.jgit.transport.UploadPack#getAdvertisedRefs()}, or
- * {@link org.eclipse.jgit.transport.ReceivePack#getAdvertisedRefs()} or
- * {@link org.eclipse.jgit.transport.ReceivePack#getAdvertisedObjects()}.
- */
- public class AdvertiseRefsHookChain implements AdvertiseRefsHook {
- private final AdvertiseRefsHook[] 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 AdvertiseRefsHook newChain(List<? extends AdvertiseRefsHook> hooks) {
- AdvertiseRefsHook[] newHooks = new AdvertiseRefsHook[hooks.size()];
- int i = 0;
- for (AdvertiseRefsHook hook : hooks)
- if (hook != AdvertiseRefsHook.DEFAULT)
- newHooks[i++] = hook;
- switch (i) {
- case 0:
- return AdvertiseRefsHook.DEFAULT;
- case 1:
- return newHooks[0];
- default:
- return new AdvertiseRefsHookChain(newHooks, i);
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public void advertiseRefs(ReceivePack rp)
- throws ServiceMayNotContinueException {
- for (int i = 0; i < count; i++)
- hooks[i].advertiseRefs(rp);
- }
-
- /** {@inheritDoc} */
- @Override
- public void advertiseRefs(UploadPack rp)
- throws ServiceMayNotContinueException {
- for (int i = 0; i < count; i++)
- hooks[i].advertiseRefs(rp);
- }
-
- private AdvertiseRefsHookChain(AdvertiseRefsHook[] hooks, int count) {
- this.hooks = hooks;
- this.count = count;
- }
- }
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