Author: frm
Date: Tue Dec 4 13:39:23 2018
New Revision: 1848155
URL: http://svn.apache.org/viewvc?rev=1848155&view=rev
Log:
OAK-7866 - Add basic test for RecoverJournal
Added:
jackrabbit/oak/trunk/oak-segment-tar/src/test/java/org/apache/jackrabbit/oak/segment/tool/RecoverJournalTest.java
(with props)
Added:
jackrabbit/oak/trunk/oak-segment-tar/src/test/java/org/apache/jackrabbit/oak/segment/tool/RecoverJournalTest.java
URL:
http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-segment-tar/src/test/java/org/apache/jackrabbit/oak/segment/tool/RecoverJournalTest.java?rev=1848155&view=auto
==============================================================================
---
jackrabbit/oak/trunk/oak-segment-tar/src/test/java/org/apache/jackrabbit/oak/segment/tool/RecoverJournalTest.java
(added)
+++
jackrabbit/oak/trunk/oak-segment-tar/src/test/java/org/apache/jackrabbit/oak/segment/tool/RecoverJournalTest.java
Tue Dec 4 13:39:23 2018
@@ -0,0 +1,111 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.jackrabbit.oak.segment.tool;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.io.PrintStream;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.apache.commons.codec.digest.DigestUtils;
+import org.apache.commons.io.output.NullOutputStream;
+import org.apache.jackrabbit.oak.segment.SegmentNodeStore;
+import org.apache.jackrabbit.oak.segment.SegmentNodeStoreBuilders;
+import org.apache.jackrabbit.oak.segment.file.FileStore;
+import org.apache.jackrabbit.oak.segment.file.FileStoreBuilder;
+import org.apache.jackrabbit.oak.segment.file.JournalReader;
+import org.apache.jackrabbit.oak.segment.file.tar.LocalJournalFile;
+import org.apache.jackrabbit.oak.spi.commit.CommitInfo;
+import org.apache.jackrabbit.oak.spi.commit.EmptyHook;
+import org.apache.jackrabbit.oak.spi.state.NodeBuilder;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+public class RecoverJournalTest {
+
+ @Rule
+ public TemporaryFolder folder = new TemporaryFolder(new File("target"));
+
+ @Test
+ public void successfulRecovery() throws Exception {
+ try (FileStore fileStore =
FileStoreBuilder.fileStoreBuilder(folder.getRoot()).build()) {
+ SegmentNodeStore nodeStore =
SegmentNodeStoreBuilders.builder(fileStore).build();
+
+ // Assumption: a repository in the real world always has (or had at
+ // least once in the past) a checkpoint. This means that the
+ // super-root always has a `checkpoints` child node, which enables
+ // the heuristic in `RecoverJournal` to recognize the head states
we
+ // are about to create as super-roots.
+
+ nodeStore.checkpoint(Long.MAX_VALUE);
+
+ for (int i = 0; i < 3; i++) {
+ NodeBuilder root = nodeStore.getRoot().builder();
+ root.setProperty("id", i);
+ nodeStore.merge(root, EmptyHook.INSTANCE, CommitInfo.EMPTY);
+ fileStore.flush();
+ }
+ }
+
+ String originalDigest = digest(file("journal.log"));
+ Set<String> originalRevisions = revisions(file("journal.log"));
+
+ int code = RecoverJournal.builder()
+ .withPath(folder.getRoot())
+ .withOut(new PrintStream(new NullOutputStream()))
+ .withErr(new PrintStream(new NullOutputStream()))
+ .build()
+ .run();
+ assertEquals(0, code);
+
+ String backupDigest = digest(file("journal.log.bak.000"));
+ assertEquals(originalDigest, backupDigest);
+
+ Set<String> recoveredRevisions = revisions(file("journal.log"));
+ assertTrue(recoveredRevisions.containsAll(originalRevisions));
+ }
+
+ private File file(String name) {
+ return new File(folder.getRoot(), name);
+ }
+
+ private static Set<String> revisions(File journal) throws Exception {
+ Set<String> revisions = new HashSet<>();
+ try (JournalReader reader = new JournalReader(new
LocalJournalFile(journal))) {
+ while (reader.hasNext()) {
+ revisions.add(reader.next().getRevision());
+ }
+ }
+ return revisions;
+ }
+
+ private static String digest(File file) throws Exception {
+ try (InputStream stream = new FileInputStream(file)) {
+ return DigestUtils.md5Hex(stream);
+ }
+ }
+
+}
Propchange:
jackrabbit/oak/trunk/oak-segment-tar/src/test/java/org/apache/jackrabbit/oak/segment/tool/RecoverJournalTest.java
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