| /* |
| * Copyright (C) 2009, 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.lib; |
| |
| import static org.hamcrest.CoreMatchers.hasItem; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNotSame; |
| import static org.junit.Assert.assertSame; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import org.eclipse.jgit.errors.RepositoryNotFoundException; |
| import org.eclipse.jgit.junit.RepositoryTestCase; |
| import org.eclipse.jgit.lib.RepositoryCache.FileKey; |
| import org.junit.Test; |
| |
| public class RepositoryCacheTest extends RepositoryTestCase { |
| @Test |
| public void testNonBareFileKey() throws IOException { |
| File gitdir = db.getDirectory(); |
| File parent = gitdir.getParentFile(); |
| File other = new File(parent, "notagit"); |
| assertEqualsFile(gitdir, FileKey.exact(gitdir, db.getFS()).getFile()); |
| assertEqualsFile(parent, FileKey.exact(parent, db.getFS()).getFile()); |
| assertEqualsFile(other, FileKey.exact(other, db.getFS()).getFile()); |
| |
| assertEqualsFile(gitdir, FileKey.lenient(gitdir, db.getFS()).getFile()); |
| assertEqualsFile(gitdir, FileKey.lenient(parent, db.getFS()).getFile()); |
| assertEqualsFile(other, FileKey.lenient(other, db.getFS()).getFile()); |
| } |
| |
| @Test |
| public void testBareFileKey() throws IOException { |
| Repository bare = createBareRepository(); |
| File gitdir = bare.getDirectory(); |
| File parent = gitdir.getParentFile(); |
| String name = gitdir.getName(); |
| assertTrue(name.endsWith(".git")); |
| name = name.substring(0, name.length() - 4); |
| |
| assertEqualsFile(gitdir, FileKey.exact(gitdir, db.getFS()).getFile()); |
| |
| assertEqualsFile(gitdir, FileKey.lenient(gitdir, db.getFS()).getFile()); |
| assertEqualsFile(gitdir, |
| FileKey.lenient(new File(parent, name), db.getFS()).getFile()); |
| } |
| |
| @Test |
| public void testFileKeyOpenExisting() throws IOException { |
| Repository r; |
| |
| r = new FileKey(db.getDirectory(), db.getFS()).open(true); |
| assertNotNull(r); |
| assertEqualsFile(db.getDirectory(), r.getDirectory()); |
| r.close(); |
| |
| r = new FileKey(db.getDirectory(), db.getFS()).open(false); |
| assertNotNull(r); |
| assertEqualsFile(db.getDirectory(), r.getDirectory()); |
| r.close(); |
| } |
| |
| @Test |
| public void testFileKeyOpenNew() throws IOException { |
| final Repository n = createRepository(true, false); |
| final File gitdir = n.getDirectory(); |
| n.close(); |
| recursiveDelete(gitdir); |
| assertFalse(gitdir.exists()); |
| |
| try { |
| new FileKey(gitdir, db.getFS()).open(true); |
| fail("incorrectly opened a non existant repository"); |
| } catch (RepositoryNotFoundException e) { |
| assertEquals("repository not found: " + gitdir.getCanonicalPath(), |
| e.getMessage()); |
| } |
| |
| final Repository o = new FileKey(gitdir, db.getFS()).open(false); |
| assertNotNull(o); |
| assertEqualsFile(gitdir, o.getDirectory()); |
| assertFalse(gitdir.exists()); |
| } |
| |
| @Test |
| public void testCacheRegisterOpen() throws Exception { |
| final File dir = db.getDirectory(); |
| RepositoryCache.register(db); |
| assertSame(db, RepositoryCache.open(FileKey.exact(dir, db.getFS()))); |
| |
| assertEquals(".git", dir.getName()); |
| final File parent = dir.getParentFile(); |
| assertSame(db, RepositoryCache.open(FileKey.lenient(parent, db.getFS()))); |
| } |
| |
| @Test |
| public void testCacheOpen() throws Exception { |
| final FileKey loc = FileKey.exact(db.getDirectory(), db.getFS()); |
| final Repository d2 = RepositoryCache.open(loc); |
| assertNotSame(db, d2); |
| assertSame(d2, RepositoryCache.open(FileKey.exact(loc.getFile(), db.getFS()))); |
| d2.close(); |
| d2.close(); |
| } |
| |
| @Test |
| public void testGetRegisteredWhenEmpty() { |
| assertEquals(0, RepositoryCache.getRegisteredKeys().size()); |
| } |
| |
| @Test |
| public void testGetRegistered() { |
| RepositoryCache.register(db); |
| |
| assertThat(RepositoryCache.getRegisteredKeys(), |
| hasItem(FileKey.exact(db.getDirectory(), db.getFS()))); |
| assertEquals(1, RepositoryCache.getRegisteredKeys().size()); |
| } |
| |
| @Test |
| public void testUnregister() { |
| RepositoryCache.register(db); |
| RepositoryCache |
| .unregister(FileKey.exact(db.getDirectory(), db.getFS())); |
| |
| assertEquals(0, RepositoryCache.getRegisteredKeys().size()); |
| } |
| |
| @Test |
| public void testRepositoryUsageCount() throws Exception { |
| FileKey loc = FileKey.exact(db.getDirectory(), db.getFS()); |
| Repository d2 = RepositoryCache.open(loc); |
| assertEquals(1, d2.useCnt.get()); |
| RepositoryCache.open(FileKey.exact(loc.getFile(), db.getFS())); |
| assertEquals(2, d2.useCnt.get()); |
| d2.close(); |
| assertEquals(1, d2.useCnt.get()); |
| d2.close(); |
| assertEquals(0, d2.useCnt.get()); |
| } |
| |
| @Test |
| public void testRepositoryUsageCountWithRegisteredRepository() |
| throws IOException { |
| Repository repo = createRepository(false, false); |
| assertEquals(1, repo.useCnt.get()); |
| RepositoryCache.register(repo); |
| assertEquals(1, repo.useCnt.get()); |
| repo.close(); |
| assertEquals(0, repo.useCnt.get()); |
| } |
| |
| @Test |
| public void testRepositoryNotUnregisteringWhenClosing() throws Exception { |
| FileKey loc = FileKey.exact(db.getDirectory(), db.getFS()); |
| Repository d2 = RepositoryCache.open(loc); |
| assertEquals(1, d2.useCnt.get()); |
| assertThat(RepositoryCache.getRegisteredKeys(), |
| hasItem(FileKey.exact(db.getDirectory(), db.getFS()))); |
| assertEquals(1, RepositoryCache.getRegisteredKeys().size()); |
| d2.close(); |
| assertEquals(0, d2.useCnt.get()); |
| assertEquals(1, RepositoryCache.getRegisteredKeys().size()); |
| assertTrue(RepositoryCache.isCached(d2)); |
| } |
| |
| @Test |
| public void testRepositoryUnregisteringWhenExpiredAndUsageCountNegative() |
| throws Exception { |
| Repository repoA = createBareRepository(); |
| RepositoryCache.register(repoA); |
| |
| assertEquals(1, RepositoryCache.getRegisteredKeys().size()); |
| assertTrue(RepositoryCache.isCached(repoA)); |
| |
| // close the repo twice to make usage count negative |
| repoA.close(); |
| repoA.close(); |
| // fake that repoA was closed more than 1 hour ago (default expiration |
| // time) |
| repoA.closedAt.set(System.currentTimeMillis() - 65 * 60 * 1000); |
| |
| RepositoryCache.clearExpired(); |
| |
| assertEquals(0, RepositoryCache.getRegisteredKeys().size()); |
| } |
| |
| @Test |
| public void testRepositoryUnregisteringWhenExpired() throws Exception { |
| Repository repoA = createRepository(true, false); |
| Repository repoB = createRepository(true, false); |
| Repository repoC = createBareRepository(); |
| RepositoryCache.register(repoA); |
| RepositoryCache.register(repoB); |
| RepositoryCache.register(repoC); |
| |
| assertEquals(3, RepositoryCache.getRegisteredKeys().size()); |
| assertTrue(RepositoryCache.isCached(repoA)); |
| assertTrue(RepositoryCache.isCached(repoB)); |
| assertTrue(RepositoryCache.isCached(repoC)); |
| |
| // fake that repoA was closed more than 1 hour ago (default expiration |
| // time) |
| repoA.close(); |
| repoA.closedAt.set(System.currentTimeMillis() - 65 * 60 * 1000); |
| // close repoB but this one will not be expired |
| repoB.close(); |
| |
| assertEquals(3, RepositoryCache.getRegisteredKeys().size()); |
| assertTrue(RepositoryCache.isCached(repoA)); |
| assertTrue(RepositoryCache.isCached(repoB)); |
| assertTrue(RepositoryCache.isCached(repoC)); |
| |
| RepositoryCache.clearExpired(); |
| |
| assertEquals(2, RepositoryCache.getRegisteredKeys().size()); |
| assertFalse(RepositoryCache.isCached(repoA)); |
| assertTrue(RepositoryCache.isCached(repoB)); |
| assertTrue(RepositoryCache.isCached(repoC)); |
| } |
| |
| @Test |
| public void testReconfigure() throws InterruptedException, IOException { |
| Repository repo = createRepository(false, false); |
| RepositoryCache.register(repo); |
| assertTrue(RepositoryCache.isCached(repo)); |
| repo.close(); |
| assertTrue(RepositoryCache.isCached(repo)); |
| |
| // Actually, we would only need to validate that |
| // WorkQueue.getExecutor().scheduleWithFixedDelay is called with proper |
| // values but since we do not have a mock library, we test |
| // reconfiguration from a black box perspective. I.e. reconfigure |
| // expireAfter and cleanupDelay to 1 ms and wait until the Repository |
| // is evicted to prove that reconfiguration worked. |
| RepositoryCacheConfig config = new RepositoryCacheConfig(); |
| config.setExpireAfter(1); |
| config.setCleanupDelay(1); |
| config.install(); |
| |
| // Instead of using a fixed waiting time, start with small and increase: |
| // sleep 1, 2, 4, 8, 16, ..., 1024 ms |
| // This wait will time out after 2048 ms |
| for (int i = 0; i <= 10; i++) { |
| Thread.sleep(1 << i); |
| if (!RepositoryCache.isCached(repo)) { |
| return; |
| } |
| } |
| fail("Repository should have been evicted from cache"); |
| } |
| } |