| /* |
| * 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.net; |
| |
| import java.io.Serializable; |
| import java.util.function.Consumer; |
| import java.util.function.Supplier; |
| |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.db.ReadCommand; |
| import org.apache.cassandra.db.ReadQuery; |
| import org.apache.cassandra.io.IVersionedAsymmetricSerializer; |
| import org.apache.cassandra.io.util.DataInputBuffer; |
| import org.apache.cassandra.io.util.DataOutputBuffer; |
| import org.apache.cassandra.io.util.DataOutputPlus; |
| import org.apache.cassandra.schema.TableMetadata; |
| import org.apache.cassandra.schema.SchemaProvider; |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| import org.apache.cassandra.utils.CassandraGenerators; |
| import org.apache.cassandra.utils.FBUtilities; |
| import org.apache.cassandra.utils.FixedMonotonicClock; |
| import org.assertj.core.api.Assertions; |
| import org.mockito.Mockito; |
| |
| import static org.apache.cassandra.net.Message.serializer; |
| import static org.apache.cassandra.utils.CassandraGenerators.MESSAGE_GEN; |
| import static org.apache.cassandra.utils.FailingConsumer.orFail; |
| import static org.quicktheories.QuickTheory.qt; |
| |
| public class MessageSerializationPropertyTest implements Serializable |
| { |
| @BeforeClass |
| public static void beforeClass() |
| { |
| System.setProperty("org.apache.cassandra.disable_mbean_registration", "true"); |
| // message serialization uses the MonotonicClock class for precise and approx timestamps, so mock it out |
| System.setProperty("cassandra.monotonic_clock.precise", FixedMonotonicClock.class.getName()); |
| System.setProperty("cassandra.monotonic_clock.approx", FixedMonotonicClock.class.getName()); |
| |
| DatabaseDescriptor.daemonInitialization(); |
| } |
| |
| /** |
| * Validates that {@link Message#serializedSize(int)} == {@link Message.Serializer#serialize(Message, DataOutputPlus, int)} size. |
| */ |
| @Test |
| public void serializeSizeProperty() |
| { |
| try (DataOutputBuffer out = new DataOutputBuffer(1024)) |
| { |
| qt().forAll(MESSAGE_GEN).checkAssert(orFail(message -> { |
| for (MessagingService.Version version : MessagingService.Version.values()) |
| { |
| out.clear(); |
| serializer.serialize(message, out, version.value); |
| Assertions.assertThat(out.getLength()) |
| .as("Property serialize(out, version).length == serializedSize(version) " + |
| "was violated for version %s and verb %s", |
| version, message.header.verb) |
| .isEqualTo(message.serializedSize(version.value)); |
| } |
| })); |
| } |
| } |
| |
| /** |
| * Message and payload don't define equals, so have to rely on another way to define equality; serialized bytes! |
| * The assumption is that serialize(deserialize(serialize(message))) == serialize(message) |
| */ |
| @Test |
| public void testMessageSerialization() throws Exception |
| { |
| SchemaProvider schema = Mockito.mock(SchemaProvider.class, Mockito.CALLS_REAL_METHODS); |
| ReadCommand.Serializer readCommandSerializer = new ReadCommand.Serializer(schema); |
| Supplier<? extends IVersionedAsymmetricSerializer<?, ?>> original = Verb.READ_REQ.unsafeSetSerializer(() -> readCommandSerializer); |
| try (DataOutputBuffer first = new DataOutputBuffer(1024); |
| DataOutputBuffer second = new DataOutputBuffer(1024)) |
| { |
| qt().forAll(MESSAGE_GEN).checkAssert(orFail(message -> { |
| withTable(schema, message, orFail(ignore -> { |
| for (MessagingService.Version version : MessagingService.Version.values()) |
| { |
| first.clear(); |
| second.clear(); |
| |
| // sync the clock with the generated createdAtNanos |
| FixedMonotonicClock.setNowInNanos(message.createdAtNanos()); |
| |
| serializer.serialize(message, first, version.value); |
| Message<Object> read = serializer.deserialize(new DataInputBuffer(first.buffer(), true), FBUtilities.getBroadcastAddressAndPort(), version.value); |
| serializer.serialize(read, second, version.value); |
| // using hex as byte buffer equality kept failing, and was harder to debug difference |
| // using hex means the specific section of the string that is different will be shown |
| Assertions.assertThat(ByteBufferUtil.bytesToHex(second.buffer())) |
| .as("Property serialize(deserialize(serialize(message))) == serialize(message) " |
| + "was violated for version %s and verb %s" |
| + "\n first=%s" |
| + "\nsecond=%s\n", |
| version, |
| message.header.verb, |
| // toString methods are not relyable for messages, so use reflection to generate one |
| new Object() { public String toString() { return CassandraGenerators.toStringRecursive(message); } }, |
| new Object() { public String toString() { return CassandraGenerators.toStringRecursive(read); } }) |
| .isEqualTo(ByteBufferUtil.bytesToHex(first.buffer())); |
| } |
| })); |
| })); |
| } |
| finally |
| { |
| Verb.READ_REQ.unsafeSetSerializer(original); |
| } |
| } |
| |
| private static void withTable(SchemaProvider schema, Message<?> message, Consumer<TableMetadata> fn) |
| { |
| TableMetadata metadata = null; |
| if (message.payload instanceof ReadQuery) |
| metadata = ((ReadQuery) message.payload).metadata(); |
| |
| if (metadata != null) |
| Mockito.when(schema.getTableMetadata(metadata.id)).thenReturn(metadata); |
| |
| fn.accept(metadata); |
| |
| if (metadata != null) |
| Mockito.when(schema.getTableMetadata(metadata.id)).thenReturn(null); |
| } |
| } |