| /* |
| * 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.ignite.internal.processors.cache.persistence.db.wal.crc; |
| |
| import java.io.EOFException; |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.util.concurrent.ThreadLocalRandom; |
| import org.apache.ignite.internal.processors.cache.persistence.file.FileIOFactory; |
| import org.apache.ignite.internal.processors.cache.persistence.file.RandomAccessFileIOFactory; |
| import org.apache.ignite.internal.processors.cache.persistence.wal.ByteBufferExpander; |
| import org.apache.ignite.internal.processors.cache.persistence.wal.Crc32CheckingDataInput; |
| import org.apache.ignite.internal.processors.cache.persistence.wal.crc.FastCrc; |
| import org.apache.ignite.internal.processors.cache.persistence.wal.crc.IgniteDataIntegrityViolationException; |
| import org.apache.ignite.internal.processors.cache.persistence.wal.io.SimpleFileInput; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * |
| */ |
| public class IgniteDataIntegrityTests { |
| /** File input. */ |
| private SimpleFileInput fileInput; |
| |
| /** Buffer expander. */ |
| private ByteBufferExpander expBuf; |
| |
| /** */ |
| @Before |
| public void setUp() throws Exception { |
| File file = File.createTempFile("integrity", "dat"); |
| file.deleteOnExit(); |
| |
| expBuf = new ByteBufferExpander(1024, ByteOrder.BIG_ENDIAN); |
| |
| FileIOFactory factory = new RandomAccessFileIOFactory(); |
| |
| fileInput = new SimpleFileInput( |
| factory.create(file), |
| expBuf |
| ); |
| |
| ByteBuffer buf = ByteBuffer.allocate(1024); |
| |
| ThreadLocalRandom curr = ThreadLocalRandom.current(); |
| |
| for (int i = 0; i < 1024; i += 16) { |
| buf.putInt(curr.nextInt()); |
| buf.putInt(curr.nextInt()); |
| buf.putInt(curr.nextInt()); |
| buf.position(i); |
| buf.putInt(FastCrc.calcCrc(buf, 12)); |
| } |
| |
| buf.rewind(); |
| |
| fileInput.io().writeFully(buf); |
| fileInput.io().force(); |
| } |
| |
| /** */ |
| @After |
| public void tearDown() throws Exception { |
| fileInput.io().close(); |
| expBuf.close(); |
| } |
| |
| /** |
| * |
| */ |
| @Test |
| public void testSuccessfulPath() throws Exception { |
| checkIntegrity(); |
| } |
| |
| /** |
| * |
| */ |
| @Test |
| public void testIntegrityViolationChecking() throws Exception { |
| toggleOneRandomBit(0, 1024 - 16); |
| |
| try { |
| checkIntegrity(); |
| |
| fail(); |
| } |
| catch (IgniteDataIntegrityViolationException ignore) { |
| //success |
| } |
| } |
| |
| /** |
| * |
| */ |
| @Test |
| public void testSkipingLastCorruptedEntry() throws Exception { |
| toggleOneRandomBit(1024 - 16, 1024); |
| |
| try { |
| checkIntegrity(); |
| |
| fail(); |
| } |
| catch (EOFException ignore) { |
| //success |
| } |
| } |
| |
| /** |
| * |
| */ |
| @Test |
| public void testExpandBuffer() { |
| ByteBufferExpander expBuf = new ByteBufferExpander(24, ByteOrder.nativeOrder()); |
| |
| ByteBuffer b1 = expBuf.buffer(); |
| |
| b1.put((byte)1); |
| b1.putInt(2); |
| b1.putLong(3L); |
| |
| assertEquals(13, b1.position()); |
| assertEquals(24, b1.limit()); |
| |
| ByteBuffer b2 = expBuf.expand(32); |
| |
| assertEquals(13, b2.position()); |
| assertEquals(24, b2.limit()); |
| |
| b2.rewind(); |
| |
| assertEquals(0, b2.position()); |
| assertEquals((byte)1, b2.get()); |
| assertEquals(2, b2.getInt()); |
| assertEquals(3L, b2.getLong()); |
| assertEquals(13, b2.position()); |
| assertEquals(24, b2.limit()); |
| assertEquals(32, b2.capacity()); |
| |
| b2.limit(b2.capacity()); |
| |
| b2.putInt(4); |
| b2.putInt(5); |
| b2.putInt(6); |
| |
| assertEquals(25, b2.position()); |
| assertEquals(32, b2.limit()); |
| assertEquals(32, b2.capacity()); |
| |
| b2.flip(); |
| |
| assertEquals(0, b2.position()); |
| assertEquals((byte)1, b2.get()); |
| assertEquals(2, b2.getInt()); |
| assertEquals(3L, b2.getLong()); |
| assertEquals(4, b2.getInt()); |
| assertEquals(5, b2.getInt()); |
| assertEquals(6, b2.getInt()); |
| assertEquals(25, b2.limit()); |
| assertEquals(32, b2.capacity()); |
| } |
| |
| /** |
| * @param rangeFrom Range from. |
| * @param rangeTo Range to. |
| */ |
| private void toggleOneRandomBit(int rangeFrom, int rangeTo) throws IOException { |
| int pos = ThreadLocalRandom.current().nextInt(rangeFrom, rangeTo); |
| fileInput.io().position(pos); |
| |
| byte[] buf = new byte[1]; |
| |
| fileInput.io().readFully(buf, 0, 1); |
| |
| buf[0] ^= (1 << 3); |
| |
| fileInput.io().position(pos); |
| fileInput.io().writeFully(buf, 0, 1); |
| fileInput.io().force(); |
| } |
| |
| /** |
| * |
| */ |
| private void checkIntegrity() throws Exception { |
| fileInput.io().position(0); |
| |
| for (int i = 0; i < 1024 / 16; i++) { |
| try (Crc32CheckingDataInput in = new Crc32CheckingDataInput(fileInput, false)) { |
| in.readInt(); |
| in.readInt(); |
| in.readInt(); |
| } |
| } |
| } |
| } |