| /* |
| * 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.cassandra.hints; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.file.Files; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.junit.Assert; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.SchemaLoader; |
| import org.apache.cassandra.cql3.statements.schema.CreateTableStatement; |
| import org.apache.cassandra.db.DecoratedKey; |
| import org.apache.cassandra.db.Mutation; |
| import org.apache.cassandra.db.partitions.PartitionUpdate; |
| import org.apache.cassandra.io.util.DataInputBuffer; |
| import org.apache.cassandra.net.MessagingService; |
| import org.apache.cassandra.schema.KeyspaceParams; |
| import org.apache.cassandra.schema.TableMetadata; |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| import org.apache.cassandra.utils.FBUtilities; |
| import org.apache.cassandra.utils.UUIDGen; |
| |
| public class HintWriteTTLTest |
| { |
| private static int TTL = 500; |
| private static int GC_GRACE = 84600; |
| |
| private static Hint makeHint(TableMetadata tbm, int key, int creationTime, int gcgs) |
| { |
| PartitionUpdate update = PartitionUpdate.fullPartitionDelete(tbm, |
| ByteBufferUtil.bytes(key), |
| s2m(creationTime), |
| creationTime); |
| Mutation mutation = new Mutation(update); |
| return Hint.create(mutation, s2m(creationTime), gcgs); |
| } |
| |
| private static DecoratedKey hintKey(Hint hint) |
| { |
| return hint.mutation.key(); |
| } |
| |
| private static Hint deserialize(ByteBuffer bb) throws IOException |
| { |
| DataInputBuffer input = new DataInputBuffer(bb, true); |
| try |
| { |
| return Hint.serializer.deserialize(input, MessagingService.current_version); |
| } |
| finally |
| { |
| input.close(); |
| } |
| } |
| |
| private static Hint ttldHint = null; |
| private static Hint liveHint = null; |
| private static File hintFile = null; |
| |
| @BeforeClass |
| public static void setupClass() throws Exception |
| { |
| System.setProperty("cassandra.maxHintTTL", Integer.toString(TTL)); |
| SchemaLoader.prepareServer(); |
| TableMetadata tbm = CreateTableStatement.parse("CREATE TABLE tbl (k INT PRIMARY KEY, v INT)", "ks").gcGraceSeconds(GC_GRACE).build(); |
| SchemaLoader.createKeyspace("ks", KeyspaceParams.simple(1), tbm); |
| |
| int nowInSeconds = FBUtilities.nowInSeconds(); |
| liveHint = makeHint(tbm, 1, nowInSeconds, GC_GRACE); |
| ttldHint = makeHint(tbm, 2, nowInSeconds - (TTL + 1), GC_GRACE); |
| |
| |
| File directory = Files.createTempDirectory(null).toFile(); |
| HintsDescriptor descriptor = new HintsDescriptor(UUIDGen.getTimeUUID(), s2m(nowInSeconds)); |
| |
| try (HintsWriter writer = HintsWriter.create(directory, descriptor); |
| HintsWriter.Session session = writer.newSession(ByteBuffer.allocate(1024))) |
| { |
| session.append(liveHint); |
| session.append(ttldHint); |
| hintFile = writer.getFile(); |
| } |
| } |
| |
| private static long s2m(int seconds) |
| { |
| return TimeUnit.SECONDS.toMillis(seconds); |
| } |
| |
| @Test |
| public void isLive() throws Exception |
| { |
| // max ttl is set to 500 |
| Assert.assertTrue(Hint.isLive(s2m(0), s2m(499), 500)); // still live |
| Assert.assertFalse(Hint.isLive(s2m(0), s2m(499), 499)); // expired due to hint's own ttl |
| Assert.assertFalse(Hint.isLive(s2m(0), s2m(500), 501)); // expired due to max ttl |
| } |
| |
| @Test |
| public void hintIsLive() throws Exception |
| { |
| Assert.assertTrue(liveHint.isLive()); |
| Assert.assertFalse(ttldHint.isLive()); |
| } |
| |
| @Test |
| public void hintIterator() throws Exception |
| { |
| List<Hint> hints = new ArrayList<>(); |
| try (HintsReader reader = HintsReader.open(hintFile)) |
| { |
| for (HintsReader.Page page: reader) |
| { |
| Iterator<Hint> iter = page.hintsIterator(); |
| while (iter.hasNext()) |
| { |
| hints.add(iter.next()); |
| } |
| } |
| } |
| |
| Assert.assertEquals(1, hints.size()); |
| Assert.assertEquals(hintKey(liveHint), hintKey(hints.get(0))); |
| } |
| |
| @Test |
| public void bufferIterator() throws Exception |
| { |
| List<Hint> hints = new ArrayList<>(); |
| try (HintsReader reader = HintsReader.open(hintFile)) |
| { |
| for (HintsReader.Page page: reader) |
| { |
| Iterator<ByteBuffer> iter = page.buffersIterator(); |
| while (iter.hasNext()) |
| { |
| hints.add(deserialize(iter.next())); |
| } |
| } |
| } |
| |
| Assert.assertEquals(1, hints.size()); |
| Assert.assertEquals(hintKey(liveHint), hintKey(hints.get(0))); |
| } |
| } |