kevin-wu24 commented on code in PR #23136: URL: https://github.com/apache/kafka/pull/23136#discussion_r3763555180
########## raft/src/testFixtures/java/org/apache/kafka/raft/RaftClientContextBuilder.java: ########## @@ -0,0 +1,439 @@ +/* + * 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.kafka.raft; + +import org.apache.kafka.common.Node; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.Uuid; +import org.apache.kafka.common.config.AbstractConfig; +import org.apache.kafka.common.memory.MemoryPool; +import org.apache.kafka.common.metrics.Metrics; +import org.apache.kafka.common.record.internal.MemoryRecords; +import org.apache.kafka.common.utils.MockTime; +import org.apache.kafka.common.utils.internals.LogContext; +import org.apache.kafka.raft.internals.StringSerde; +import org.apache.kafka.server.common.Feature; +import org.apache.kafka.server.common.KRaftVersion; +import org.apache.kafka.server.common.OffsetAndEpoch; +import org.apache.kafka.server.common.serialization.RecordSerde; +import org.apache.kafka.snapshot.RecordsSnapshotWriter; +import org.apache.kafka.snapshot.Snapshots; + +import org.mockito.Mockito; + +import java.io.IOException; +import java.net.InetSocketAddress; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Optional; +import java.util.OptionalInt; +import java.util.Set; +import java.util.function.Consumer; +import java.util.function.Function; +import java.util.stream.Collectors; +import java.util.stream.IntStream; + +import static org.apache.kafka.raft.SharedRaftClientContext.RaftProtocol.KIP_853_PROTOCOL; + +public final class RaftClientContextBuilder { + static final int DEFAULT_ELECTION_TIMEOUT_MS = 10000; + + static final RecordSerde<String> SERDE = new StringSerde(); + static final TopicPartition METADATA_PARTITION = new TopicPartition("metadata", 0); + static final int ELECTION_BACKOFF_MAX_MS = 100; + static final int FETCH_MAX_WAIT_MS = 0; + // fetch timeout is usually larger than election timeout + static final int FETCH_TIMEOUT_MS = 50000; + private static final int DEFAULT_REQUEST_TIMEOUT_MS = 5000; + static final int RETRY_BACKOFF_MS = 50; + private static final int DEFAULT_APPEND_LINGER_MS = 0; + + private final MockMessageQueue messageQueue = new MockMessageQueue(); + private final MockTime time = new MockTime(); + private final MockQuorumStateStore quorumStateStore = new MockQuorumStateStore(); + private final MockableRandom random = new MockableRandom(1L); + private final LogContext logContext = new LogContext(); + private final MockLog log = new MockLog(METADATA_PARTITION, Uuid.METADATA_TOPIC_ID, logContext); + private final String clusterId = Uuid.randomUuid().toString(); + private final OptionalInt localId; + private KRaftVersion kraftVersion = KRaftVersion.KRAFT_VERSION_0; + private final Uuid localDirectoryId; + + private int requestTimeoutMs = DEFAULT_REQUEST_TIMEOUT_MS; + private int electionTimeoutMs = DEFAULT_ELECTION_TIMEOUT_MS; + private int appendLingerMs = DEFAULT_APPEND_LINGER_MS; + private MemoryPool memoryPool = MemoryPool.NONE; + private Optional<List<InetSocketAddress>> bootstrapServers = Optional.empty(); + private SharedRaftClientContext.RaftProtocol raftProtocol = SharedRaftClientContext.RaftProtocol.KIP_595_PROTOCOL; + private boolean canBecomeVoter = false; + private VoterSet startingVoters = VoterSet.empty(); + private Endpoints localListeners = Endpoints.empty(); + private boolean isStartingVotersStatic = false; + private boolean autoJoin = false; + private int fetchSnapshotMaxBytes = QuorumConfig.DEFAULT_QUORUM_FETCH_SNAPSHOT_MAX_BYTES; + private int fetchMaxBytes = QuorumConfig.DEFAULT_QUORUM_FETCH_MAX_BYTES; + + public RaftClientContextBuilder(int localId, Set<Integer> staticVoters) { + this(OptionalInt.of(localId), staticVoters); + } + + public RaftClientContextBuilder(OptionalInt localId, Set<Integer> staticVoters) { + this(localId, Uuid.randomUuid()); + + withStaticVoters(staticVoters); + } + + public RaftClientContextBuilder(int localId, Uuid localDirectoryId) { + this(OptionalInt.of(localId), localDirectoryId); + } + + public RaftClientContextBuilder(OptionalInt localId, Uuid localDirectoryId) { + this.localId = localId; + this.localDirectoryId = localDirectoryId; + } + + RaftClientContextBuilder withElectedLeader(int epoch, int leaderId) { + quorumStateStore.writeElectionState( + ElectionState.withElectedLeader(epoch, leaderId, Optional.empty(), startingVoters.voterIds()), + kraftVersion + ); + return this; + } + + RaftClientContextBuilder withUnknownLeader(int epoch) { + quorumStateStore.writeElectionState( + ElectionState.withUnknownLeader(epoch, startingVoters.voterIds()), + kraftVersion + ); + return this; + } + + RaftClientContextBuilder withVotedCandidate(int epoch, ReplicaKey votedKey) { + quorumStateStore.writeElectionState( + ElectionState.withVotedCandidate(epoch, votedKey, startingVoters.voterIds()), + kraftVersion + ); + return this; + } + + RaftClientContextBuilder updateRandom(Consumer<MockableRandom> consumer) { + consumer.accept(random); + return this; + } + + RaftClientContextBuilder withMemoryPool(MemoryPool pool) { + this.memoryPool = pool; + return this; + } + + RaftClientContextBuilder withAppendLingerMs(int appendLingerMs) { + this.appendLingerMs = appendLingerMs; + return this; + } + + public RaftClientContextBuilder appendToLog(int epoch, List<String> records) { + MemoryRecords batch = RaftClientTestContext.buildBatch( Review Comment: A bit of a nit, but we should move `buildBatch` to the `SharedRaftClientContext`, since the benchmarks will eventually need this functionality too to append batches. -- This is an automated message from the Apache Git Service. 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