| /* |
| * 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.tephra; |
| |
| import com.google.common.primitives.Bytes; |
| |
| import org.apache.tephra.TxConstants.ConflictDetection; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.Set; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotEquals; |
| |
| public class AbstractTransactionAwareTableTest { |
| public static final byte[] TABLE_NAME = "a".getBytes(); |
| public static final String ROW_PREFIX = "r"; |
| public static final String ROW1 = ROW_PREFIX + "1"; |
| public static final String ROW2 = ROW_PREFIX + "2"; |
| public static final String ROW3 = "1"; |
| public static final String FAM1 = "f1"; |
| |
| private static class ConcreteTransactionAwareTable extends AbstractTransactionAwareTable { |
| private final byte[] tableKey; |
| |
| public ConcreteTransactionAwareTable(ConflictDetection conflictLevel, |
| boolean allowNonTransactional, byte[] tableKey, boolean pre014ChangeSetKey) { |
| super(conflictLevel, allowNonTransactional, pre014ChangeSetKey); |
| this.tableKey = tableKey; |
| } |
| |
| @Override |
| protected boolean doCommit() throws IOException { |
| return false; |
| } |
| |
| @Override |
| protected byte[] getTableKey() { |
| return tableKey; |
| } |
| |
| @Override |
| protected boolean doRollback() throws Exception { |
| return false; |
| } |
| |
| public Set<ActionChange> getChangeSet() { |
| return changeSets.isEmpty() ? |
| Collections.<ActionChange>emptySet() : |
| changeSets.values().iterator().next(); |
| } |
| } |
| |
| @Test |
| public void testActionChangeEquality() { |
| long wp = System.currentTimeMillis(); |
| long rp = wp - 100; |
| ConcreteTransactionAwareTable table1 = |
| new ConcreteTransactionAwareTable(ConflictDetection.ROW, false, TABLE_NAME, true); |
| ConcreteTransactionAwareTable table2 = |
| new ConcreteTransactionAwareTable(ConflictDetection.ROW, false, TABLE_NAME, true); |
| Transaction tx = new Transaction(rp, wp, new long[] {}, new long[] {}, wp); |
| table1.startTx(tx); |
| table2.startTx(tx); |
| table1.addToChangeSet(ROW1.getBytes(), FAM1.getBytes(), null); |
| table1.addToChangeSet(ROW1.getBytes(), FAM1.getBytes(), null); |
| table2.addToChangeSet(ROW1.getBytes(), FAM1.getBytes(), null); |
| assertEquals(table1.getChangeSet(), table2.getChangeSet()); |
| table1.addToChangeSet(ROW2.getBytes(), FAM1.getBytes(), null); |
| table2.addToChangeSet(ROW2.getBytes(), FAM1.getBytes(), null); |
| table2.addToChangeSet(ROW2.getBytes(), FAM1.getBytes(), null); |
| assertEquals(table1.getChangeSet(), table2.getChangeSet()); |
| } |
| |
| @Test |
| public void testActionChangeOverlapWithSeparators() { |
| testActionChangeOverlap(false); |
| } |
| |
| @Test |
| public void testActionChangeOverlapWithoutSeparators() { |
| testActionChangeOverlap(true); |
| } |
| |
| /** |
| * Demonstrates false positives on conflicts due to concatenation of |
| * keys for change sets (see TEPHRA-287). |
| * @param pre014ChangeSetKey |
| */ |
| private void testActionChangeOverlap(boolean pre014ChangeSetKey) { |
| long wp = System.currentTimeMillis(); |
| long rp = wp - 100; |
| ConcreteTransactionAwareTable table1 = |
| new ConcreteTransactionAwareTable(ConflictDetection.ROW, false, TABLE_NAME, pre014ChangeSetKey); |
| ConcreteTransactionAwareTable table2 = |
| new ConcreteTransactionAwareTable(ConflictDetection.ROW, false, |
| Bytes.concat(TABLE_NAME, ROW_PREFIX.getBytes()), pre014ChangeSetKey); |
| Transaction tx = new Transaction(rp, wp, new long[] {}, new long[] {}, wp); |
| table1.startTx(tx); |
| table2.startTx(tx); |
| table1.addToChangeSet(ROW1.getBytes(), FAM1.getBytes(), null); |
| table2.addToChangeSet(ROW3.getBytes(), FAM1.getBytes(), null); |
| assertNotEquals(table1.getChangeSet(), table2.getChangeSet()); |
| ConcreteTransactionAwareTable table3 = |
| new ConcreteTransactionAwareTable(ConflictDetection.COLUMN, false, TABLE_NAME, pre014ChangeSetKey); |
| table3.startTx(tx); |
| table3.addToChangeSet("e".getBytes(), "bc".getBytes(), "d".getBytes()); |
| table3.addToChangeSet("e".getBytes(), "b".getBytes(), "cd".getBytes()); |
| assertEquals(pre014ChangeSetKey ? 3 : 2, table3.getTxChanges().size()); |
| } |
| } |