X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestPersistentSnapshotDeletionPolicy.java diff --git a/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestPersistentSnapshotDeletionPolicy.java b/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestPersistentSnapshotDeletionPolicy.java new file mode 100644 index 0000000..b18acf2 --- /dev/null +++ b/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestPersistentSnapshotDeletionPolicy.java @@ -0,0 +1,191 @@ +package org.apache.lucene.index; + +/** + * 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. + */ + +import java.io.IOException; +import java.util.Map; +import java.util.Map.Entry; + +import org.apache.lucene.document.Document; +import org.apache.lucene.index.IndexWriterConfig.OpenMode; +import org.apache.lucene.store.Directory; +import org.apache.lucene.store.LockObtainFailedException; +import org.junit.After; +import org.junit.Before; +import org.junit.Test; + +public class TestPersistentSnapshotDeletionPolicy extends TestSnapshotDeletionPolicy { + + // Keep it a class member so that getDeletionPolicy can use it + private Directory snapshotDir; + + // so we can close it if called by SDP tests + private PersistentSnapshotDeletionPolicy psdp; + + @Before + @Override + public void setUp() throws Exception { + super.setUp(); + snapshotDir = newDirectory(); + } + + @After + @Override + public void tearDown() throws Exception { + if (psdp != null) psdp.close(); + snapshotDir.close(); + super.tearDown(); + } + + @Override + protected SnapshotDeletionPolicy getDeletionPolicy() throws IOException { + if (psdp != null) psdp.close(); + snapshotDir.close(); + snapshotDir = newDirectory(); + return psdp = new PersistentSnapshotDeletionPolicy( + new KeepOnlyLastCommitDeletionPolicy(), snapshotDir, OpenMode.CREATE, + TEST_VERSION_CURRENT); + } + + @Override + protected SnapshotDeletionPolicy getDeletionPolicy(Map snapshots) throws IOException { + SnapshotDeletionPolicy sdp = getDeletionPolicy(); + if (snapshots != null) { + for (Entry e: snapshots.entrySet()) { + sdp.registerSnapshotInfo(e.getKey(), e.getValue(), null); + } + } + return sdp; + } + + @Override + @Test + public void testExistingSnapshots() throws Exception { + int numSnapshots = 3; + Directory dir = newDirectory(); + PersistentSnapshotDeletionPolicy psdp = (PersistentSnapshotDeletionPolicy) getDeletionPolicy(); + IndexWriter writer = new IndexWriter(dir, getConfig(random, psdp)); + prepareIndexAndSnapshots(psdp, writer, numSnapshots, "snapshot"); + writer.close(); + psdp.close(); + + // Re-initialize and verify snapshots were persisted + psdp = new PersistentSnapshotDeletionPolicy( + new KeepOnlyLastCommitDeletionPolicy(), snapshotDir, OpenMode.APPEND, + TEST_VERSION_CURRENT); + new IndexWriter(dir, getConfig(random, psdp)).close(); + + assertSnapshotExists(dir, psdp, numSnapshots); + assertEquals(numSnapshots, psdp.getSnapshots().size()); + psdp.close(); + dir.close(); + } + + @Test(expected=IllegalArgumentException.class) + public void testIllegalSnapshotId() throws Exception { + getDeletionPolicy().snapshot("$SNAPSHOTS_DOC$"); + } + + @Test + public void testInvalidSnapshotInfos() throws Exception { + // Add the correct number of documents (1), but without snapshot information + IndexWriter writer = new IndexWriter(snapshotDir, getConfig(random, null)); + writer.addDocument(new Document()); + writer.close(); + try { + new PersistentSnapshotDeletionPolicy( + new KeepOnlyLastCommitDeletionPolicy(), snapshotDir, OpenMode.APPEND, + TEST_VERSION_CURRENT); + fail("should not have succeeded to read from an invalid Directory"); + } catch (IllegalStateException e) { + } + } + + @Test + public void testNoSnapshotInfos() throws Exception { + // Initialize an empty index in snapshotDir - PSDP should initialize successfully. + new IndexWriter(snapshotDir, getConfig(random, null)).close(); + new PersistentSnapshotDeletionPolicy( + new KeepOnlyLastCommitDeletionPolicy(), snapshotDir, OpenMode.APPEND, + TEST_VERSION_CURRENT).close(); + } + + @Test(expected=IllegalStateException.class) + public void testTooManySnapshotInfos() throws Exception { + // Write two documents to the snapshots directory - illegal. + IndexWriter writer = new IndexWriter(snapshotDir, getConfig(random, null)); + writer.addDocument(new Document()); + writer.addDocument(new Document()); + writer.close(); + + new PersistentSnapshotDeletionPolicy( + new KeepOnlyLastCommitDeletionPolicy(), snapshotDir, OpenMode.APPEND, + TEST_VERSION_CURRENT).close(); + fail("should not have succeeded to open an invalid directory"); + } + + @Test + public void testSnapshotRelease() throws Exception { + Directory dir = newDirectory(); + PersistentSnapshotDeletionPolicy psdp = (PersistentSnapshotDeletionPolicy) getDeletionPolicy(); + IndexWriter writer = new IndexWriter(dir, getConfig(random, psdp)); + prepareIndexAndSnapshots(psdp, writer, 1, "snapshot"); + writer.close(); + + psdp.release("snapshot0"); + psdp.close(); + + psdp = new PersistentSnapshotDeletionPolicy( + new KeepOnlyLastCommitDeletionPolicy(), snapshotDir, OpenMode.APPEND, + TEST_VERSION_CURRENT); + assertEquals("Should have no snapshots !", 0, psdp.getSnapshots().size()); + psdp.close(); + dir.close(); + } + + @Test + public void testStaticRead() throws Exception { + // While PSDP is open, it keeps a lock on the snapshots directory and thus + // prevents reading the snapshots information. This test checks that the + // static read method works. + int numSnapshots = 1; + Directory dir = newDirectory(); + PersistentSnapshotDeletionPolicy psdp = (PersistentSnapshotDeletionPolicy) getDeletionPolicy(); + IndexWriter writer = new IndexWriter(dir, getConfig(random, psdp)); + prepareIndexAndSnapshots(psdp, writer, numSnapshots, "snapshot"); + writer.close(); + dir.close(); + + try { + // This should fail, since the snapshots directory is locked - we didn't close it ! + new PersistentSnapshotDeletionPolicy( + new KeepOnlyLastCommitDeletionPolicy(), snapshotDir, OpenMode.APPEND, + TEST_VERSION_CURRENT); + fail("should not have reached here - the snapshots directory should be locked!"); + } catch (LockObtainFailedException e) { + // expected + } finally { + psdp.close(); + } + + // Reading the snapshots info should succeed though + Map snapshots = PersistentSnapshotDeletionPolicy.readSnapshotsInfo(snapshotDir); + assertEquals("expected " + numSnapshots + " snapshots, got " + snapshots.size(), numSnapshots, snapshots.size()); + } + +}