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- /*
- * Copyright (C) 2018, Thomas Wolf <thomas.wolf@paranor.ch>
- * 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.sshd;
-
- import java.nio.file.Path;
- import java.security.KeyPair;
- import java.security.PrivateKey;
- import java.util.Map;
- import java.util.concurrent.ConcurrentHashMap;
- import java.util.concurrent.atomic.AtomicReference;
- import java.util.function.Function;
-
- import javax.security.auth.DestroyFailedException;
-
- /**
- * A simple {@link KeyCache}. JGit uses one such cache in its
- * {@link SshdSessionFactory} to avoid loading keys multiple times.
- *
- * @since 5.2
- */
- public class JGitKeyCache implements KeyCache {
-
- private AtomicReference<Map<Path, KeyPair>> cache = new AtomicReference<>(
- new ConcurrentHashMap<>());
-
- @Override
- public KeyPair get(Path path,
- Function<? super Path, ? extends KeyPair> loader) {
- return cache.get().computeIfAbsent(path, loader);
- }
-
- @Override
- public void close() {
- Map<Path, KeyPair> map = cache.getAndSet(null);
- if (map == null) {
- return;
- }
- for (KeyPair k : map.values()) {
- PrivateKey p = k.getPrivate();
- try {
- p.destroy();
- } catch (DestroyFailedException e) {
- // Ignore here. We did our best.
- }
- }
- map.clear();
- }
- }
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