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- /*
- * Copyright (C) 2011, Google Inc.
- * 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.transport;
-
- import java.util.Collection;
- import java.util.Collections;
- import java.util.List;
- import java.util.stream.Collectors;
-
- import org.eclipse.jgit.lib.ObjectId;
-
- /**
- * {@link org.eclipse.jgit.transport.PreUploadHook} that delegates to a list of
- * other hooks.
- * <p>
- * Hooks are run in the order passed to the constructor. If running a method on
- * one hook throws an exception, execution of remaining hook methods is aborted.
- */
- public class PreUploadHookChain implements PreUploadHook {
- private final List<PreUploadHook> hooks;
-
- /**
- * 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 PreUploadHook newChain(List<PreUploadHook> hooks) {
- List<PreUploadHook> newHooks = hooks.stream()
- .filter(hook -> !hook.equals(PreUploadHook.NULL))
- .collect(Collectors.toList());
-
- if (newHooks.isEmpty()) {
- return PreUploadHook.NULL;
- } else if (newHooks.size() == 1) {
- return newHooks.get(0);
- } else {
- return new PreUploadHookChain(newHooks);
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public void onBeginNegotiateRound(UploadPack up,
- Collection<? extends ObjectId> wants, int cntOffered)
- throws ServiceMayNotContinueException {
- for (PreUploadHook hook : hooks) {
- hook.onBeginNegotiateRound(up, wants, cntOffered);
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public void onEndNegotiateRound(UploadPack up,
- Collection<? extends ObjectId> wants, int cntCommon,
- int cntNotFound, boolean ready)
- throws ServiceMayNotContinueException {
- for (PreUploadHook hook : hooks) {
- hook.onEndNegotiateRound(up, wants, cntCommon, cntNotFound, ready);
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public void onSendPack(UploadPack up,
- Collection<? extends ObjectId> wants,
- Collection<? extends ObjectId> haves)
- throws ServiceMayNotContinueException {
- for (PreUploadHook hook : hooks) {
- hook.onSendPack(up, wants, haves);
- }
- }
-
- private PreUploadHookChain(List<PreUploadHook> hooks) {
- this.hooks = Collections.unmodifiableList(hooks);
- }
- }
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