| /* |
| * 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.service.paxos.uncommitted; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.UUID; |
| |
| import com.google.common.collect.Iterators; |
| import com.google.common.collect.Lists; |
| import org.junit.*; |
| |
| import org.apache.cassandra.SchemaLoader; |
| import org.apache.cassandra.cql3.ColumnIdentifier; |
| import org.apache.cassandra.cql3.statements.schema.CreateTableStatement; |
| import org.apache.cassandra.db.*; |
| import org.apache.cassandra.db.marshal.UUIDType; |
| import org.apache.cassandra.db.partitions.PartitionUpdate; |
| import org.apache.cassandra.db.partitions.UnfilteredPartitionIterator; |
| import org.apache.cassandra.db.rows.BTreeRow; |
| import org.apache.cassandra.db.rows.BufferCell; |
| import org.apache.cassandra.db.rows.Cell; |
| import org.apache.cassandra.db.rows.Row; |
| import org.apache.cassandra.db.rows.UnfilteredRowIterator; |
| import org.apache.cassandra.schema.ColumnMetadata; |
| import org.apache.cassandra.schema.TableId; |
| import org.apache.cassandra.schema.TableMetadata; |
| import org.apache.cassandra.service.paxos.Ballot; |
| import org.apache.cassandra.service.paxos.Commit; |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| import org.apache.cassandra.utils.CloseableIterator; |
| import org.apache.cassandra.utils.FBUtilities; |
| import org.apache.cassandra.utils.btree.BTree; |
| |
| import static org.apache.cassandra.service.paxos.uncommitted.PaxosUncommittedTests.PAXOS_CFM; |
| import static org.apache.cassandra.service.paxos.uncommitted.PaxosUncommittedTests.PAXOS_CFS; |
| import static org.apache.cassandra.service.paxos.uncommitted.PaxosUncommittedTests.createBallots; |
| import static org.apache.cassandra.service.paxos.uncommitted.PaxosUncommittedTests.dk; |
| |
| public class PaxosRowsTest |
| { |
| protected static String ks; |
| protected static final String tbl = "tbl"; |
| protected static TableMetadata metadata; |
| protected static TableId tableId; |
| |
| static Commit emptyCommitFor(Ballot ballot, DecoratedKey key) |
| { |
| return new Commit(ballot, PartitionUpdate.emptyUpdate(metadata, key)); |
| } |
| |
| static Commit nonEmptyCommitFor(Ballot ballot, DecoratedKey key) |
| { |
| return new Commit(ballot, nonEmptyUpdate(ballot, metadata, key)); |
| } |
| |
| static PartitionUpdate nonEmptyUpdate(Ballot ballot, TableMetadata cfm, DecoratedKey key) |
| { |
| ColumnMetadata valueColumn = cfm.getColumn(new ColumnIdentifier("v", false)); |
| return PartitionUpdate.singleRowUpdate(cfm, key, BTreeRow.create(Clustering.EMPTY, LivenessInfo.EMPTY, Row.Deletion.LIVE, BTree.singleton(new BufferCell(valueColumn, ballot.unixMicros(), Cell.NO_TTL, Cell.NO_DELETION_TIME, ByteBufferUtil.bytes(1), null)))); |
| } |
| |
| static Row paxosRowFor(DecoratedKey key) |
| { |
| SinglePartitionReadCommand command = SinglePartitionReadCommand.create(PAXOS_CFM, |
| FBUtilities.nowInSeconds(), |
| key, |
| new BufferClustering(UUIDType.instance.decompose(tableId.asUUID()))); |
| try (ReadExecutionController opGroup = command.executionController(); |
| UnfilteredPartitionIterator iterator = command.executeLocally(opGroup); |
| UnfilteredRowIterator partition = Iterators.getOnlyElement(iterator)) |
| { |
| return (Row) Iterators.getOnlyElement(partition); |
| } |
| } |
| |
| @BeforeClass |
| public static void setUpClass() throws Exception |
| { |
| SchemaLoader.prepareServer(); |
| |
| ks = "coordinatorsessiontest"; |
| metadata = CreateTableStatement.parse("CREATE TABLE tbl (k INT PRIMARY KEY, v INT)", ks).build(); |
| tableId = metadata.id; |
| } |
| |
| @Before |
| public void setUp() throws Exception |
| { |
| PAXOS_CFS.truncateBlocking(); |
| } |
| |
| @Test |
| public void testRowInterpretation() |
| { |
| DecoratedKey key = dk(5); |
| Ballot[] ballots = createBallots(3); |
| |
| SystemKeyspace.savePaxosWritePromise(key, metadata, ballots[0]); |
| Assert.assertEquals(new PaxosKeyState(tableId, key, ballots[0], false), PaxosRows.getCommitState(key, paxosRowFor(key), null)); |
| SystemKeyspace.savePaxosProposal(emptyCommitFor(ballots[0], key)); |
| Assert.assertEquals(new PaxosKeyState(tableId, key, ballots[0], true), PaxosRows.getCommitState(key, paxosRowFor(key), null)); |
| |
| SystemKeyspace.savePaxosWritePromise(key, metadata, ballots[1]); |
| Assert.assertEquals(new PaxosKeyState(tableId, key, ballots[1], false), PaxosRows.getCommitState(key, paxosRowFor(key), null)); |
| SystemKeyspace.savePaxosProposal(nonEmptyCommitFor(ballots[1], key)); |
| Assert.assertEquals(new PaxosKeyState(tableId, key, ballots[1], false), PaxosRows.getCommitState(key, paxosRowFor(key), null)); |
| SystemKeyspace.savePaxosCommit(nonEmptyCommitFor(ballots[1], key)); |
| Assert.assertEquals(new PaxosKeyState(tableId, key, ballots[1], true), PaxosRows.getCommitState(key, paxosRowFor(key), null)); |
| |
| // test cfid filter mismatch |
| Assert.assertNull(PaxosRows.getCommitState(key, paxosRowFor(key), TableId.fromUUID(UUID.randomUUID()))); |
| |
| SystemKeyspace.savePaxosCommit(emptyCommitFor(ballots[2], key)); |
| Assert.assertEquals(new PaxosKeyState(tableId, key, ballots[2], true), PaxosRows.getCommitState(key, paxosRowFor(key), null)); |
| } |
| |
| @Test |
| public void testIterator() |
| { |
| Ballot[] ballots = createBallots(10); |
| List<PaxosKeyState> expected = new ArrayList<>(ballots.length); |
| for (int i=0; i<ballots.length; i++) |
| { |
| Ballot ballot = ballots[i]; |
| DecoratedKey key = dk(i); |
| |
| if (i%2 == 0) |
| { |
| SystemKeyspace.savePaxosProposal(nonEmptyCommitFor(ballot, key)); |
| expected.add(new PaxosKeyState(tableId, key, ballot, false)); |
| } |
| else |
| { |
| SystemKeyspace.savePaxosCommit(nonEmptyCommitFor(ballot, key)); |
| expected.add(new PaxosKeyState(tableId, key, ballot, true)); |
| } |
| } |
| |
| PartitionRangeReadCommand command = PartitionRangeReadCommand.allDataRead(PAXOS_CFM, FBUtilities.nowInSeconds()); |
| try (ReadExecutionController opGroup = command.executionController(); |
| UnfilteredPartitionIterator partitions = command.executeLocally(opGroup); |
| CloseableIterator<PaxosKeyState> iterator = PaxosRows.toIterator(partitions, metadata.id, true)) |
| { |
| Assert.assertEquals(expected, Lists.newArrayList(iterator)); |
| } |
| } |
| } |