kirktrue commented on code in PR #14406: URL: https://github.com/apache/kafka/pull/14406#discussion_r1351064502
########## clients/src/test/java/org/apache/kafka/clients/consumer/internals/ConsumerTestBuilder.java: ########## @@ -0,0 +1,267 @@ +/* + * 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.clients.consumer.internals; + +import org.apache.kafka.clients.ApiVersions; +import org.apache.kafka.clients.CommonClientConfigs; +import org.apache.kafka.clients.GroupRebalanceConfig; +import org.apache.kafka.clients.MockClient; +import org.apache.kafka.clients.consumer.ConsumerConfig; +import org.apache.kafka.clients.consumer.ConsumerPartitionAssignor; +import org.apache.kafka.clients.consumer.internals.events.ApplicationEvent; +import org.apache.kafka.clients.consumer.internals.events.ApplicationEventHandler; +import org.apache.kafka.clients.consumer.internals.events.ApplicationEventProcessor; +import org.apache.kafka.clients.consumer.internals.events.BackgroundEvent; +import org.apache.kafka.clients.consumer.internals.events.BackgroundEventHandler; +import org.apache.kafka.clients.consumer.internals.events.BackgroundEventProcessor; +import org.apache.kafka.common.internals.ClusterResourceListeners; +import org.apache.kafka.common.metrics.Metrics; +import org.apache.kafka.common.requests.MetadataResponse; +import org.apache.kafka.common.requests.RequestTestUtils; +import org.apache.kafka.common.serialization.StringDeserializer; +import org.apache.kafka.common.utils.LogContext; +import org.apache.kafka.common.utils.MockTime; +import org.apache.kafka.common.utils.Time; + +import java.io.Closeable; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Optional; +import java.util.Properties; +import java.util.concurrent.BlockingQueue; +import java.util.concurrent.LinkedBlockingQueue; + +import static org.apache.kafka.clients.consumer.ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG; +import static org.apache.kafka.clients.consumer.ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG; +import static org.apache.kafka.clients.consumer.internals.ConsumerUtils.createFetchMetricsManager; +import static org.apache.kafka.clients.consumer.internals.ConsumerUtils.createMetrics; +import static org.apache.kafka.clients.consumer.internals.ConsumerUtils.createSubscriptionState; +import static org.apache.kafka.common.utils.Utils.closeQuietly; +import static org.mockito.Mockito.spy; + +public class ConsumerTestBuilder implements Closeable { + + static final long RETRY_BACKOFF_MS = 80; + static final long RETRY_BACKOFF_MAX_MS = 1000; + static final int REQUEST_TIMEOUT_MS = 500; + + final LogContext logContext = new LogContext(); + final Time time = new MockTime(0); + public final BlockingQueue<ApplicationEvent> applicationEventQueue; + public final BlockingQueue<BackgroundEvent> backgroundEventQueue; + final ConsumerConfig config; + final long retryBackoffMs; + final SubscriptionState subscriptions; + final ConsumerMetadata metadata; + final FetchConfig fetchConfig; + final Metrics metrics; + final FetchMetricsManager metricsManager; + final NetworkClientDelegate networkClientDelegate; + final OffsetsRequestManager offsetsRequestManager; + final CoordinatorRequestManager coordinatorRequestManager; + final CommitRequestManager commitRequestManager; + final TopicMetadataRequestManager topicMetadataRequestManager; + final FetchRequestManager fetchRequestManager; + final RequestManagers requestManagers; + public final ApplicationEventProcessor applicationEventProcessor; + public final BackgroundEventProcessor backgroundEventProcessor; + public final BackgroundEventHandler backgroundEventHandler; + final MockClient client; + + public ConsumerTestBuilder() { + this.applicationEventQueue = new LinkedBlockingQueue<>(); + this.backgroundEventQueue = new LinkedBlockingQueue<>(); + this.backgroundEventHandler = new BackgroundEventHandler(logContext, backgroundEventQueue); + GroupRebalanceConfig groupRebalanceConfig = new GroupRebalanceConfig( + 100, + 100, + 100, + "group_id", + Optional.empty(), + RETRY_BACKOFF_MS, + RETRY_BACKOFF_MAX_MS, + true); + GroupState groupState = new GroupState(groupRebalanceConfig); + ApiVersions apiVersions = new ApiVersions(); + + Properties properties = new Properties(); + properties.put(KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class); + properties.put(VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class); + properties.put(CommonClientConfigs.RETRY_BACKOFF_MS_CONFIG, RETRY_BACKOFF_MS); + properties.put(CommonClientConfigs.REQUEST_TIMEOUT_MS_CONFIG, REQUEST_TIMEOUT_MS); + + this.config = new ConsumerConfig(properties); + this.fetchConfig = new FetchConfig(config); + this.retryBackoffMs = config.getLong(ConsumerConfig.RETRY_BACKOFF_MS_CONFIG); + final long requestTimeoutMs = config.getInt(ConsumerConfig.REQUEST_TIMEOUT_MS_CONFIG); + this.metrics = createMetrics(config, time); + + this.subscriptions = spy(createSubscriptionState(config, logContext)); + this.metadata = spy(new ConsumerMetadata(config, subscriptions, logContext, new ClusterResourceListeners())); + this.metricsManager = createFetchMetricsManager(metrics); + + this.client = new MockClient(time, metadata); + MetadataResponse metadataResponse = RequestTestUtils.metadataUpdateWith(1, new HashMap<String, Integer>() { + { + String topic1 = "test1"; + put(topic1, 1); + String topic2 = "test2"; + put(topic2, 1); + } + }); + this.client.updateMetadata(metadataResponse); + + this.networkClientDelegate = spy(new NetworkClientDelegate(time, + config, + logContext, + client)); + this.offsetsRequestManager = spy(new OffsetsRequestManager(subscriptions, + metadata, + fetchConfig.isolationLevel, + time, + retryBackoffMs, + requestTimeoutMs, + apiVersions, + networkClientDelegate, + logContext)); + this.coordinatorRequestManager = spy(new CoordinatorRequestManager(time, + logContext, + RETRY_BACKOFF_MS, + RETRY_BACKOFF_MAX_MS, + backgroundEventHandler, + "group_id")); + this.commitRequestManager = spy(new CommitRequestManager(time, + logContext, + subscriptions, + config, + coordinatorRequestManager, + groupState)); + this.fetchRequestManager = spy(new FetchRequestManager(logContext, + time, + metadata, + subscriptions, + fetchConfig, + metricsManager, + networkClientDelegate)); + this.topicMetadataRequestManager = spy(new TopicMetadataRequestManager(logContext, + config)); + this.requestManagers = new RequestManagers(logContext, + offsetsRequestManager, + topicMetadataRequestManager, + fetchRequestManager, + Optional.of(coordinatorRequestManager), + Optional.of(commitRequestManager)); + this.applicationEventProcessor = spy(new ApplicationEventProcessor( + logContext, + applicationEventQueue, + requestManagers, + metadata) + ); + this.backgroundEventProcessor = spy(new BackgroundEventProcessor(logContext, backgroundEventQueue)); + } + + @Override + public void close() { + closeQuietly(requestManagers, RequestManagers.class.getSimpleName()); + closeQuietly(applicationEventProcessor, ApplicationEventProcessor.class.getSimpleName()); + closeQuietly(backgroundEventProcessor, BackgroundEventProcessor.class.getSimpleName()); + } + + public static class ConsumerNetworkThreadTestBuilder extends ConsumerTestBuilder { + + final ConsumerNetworkThread consumerNetworkThread; + + public ConsumerNetworkThreadTestBuilder() { + this.consumerNetworkThread = new ConsumerNetworkThread( + logContext, + time, + () -> applicationEventProcessor, + () -> networkClientDelegate, + () -> requestManagers + ); + } + + @Override + public void close() { + closeQuietly(consumerNetworkThread, ConsumerNetworkThread.class.getSimpleName()); + } + } + + public static class ApplicationEventHandlerTestBuilder extends ConsumerTestBuilder { + + public final ApplicationEventHandler applicationEventHandler; + + public ApplicationEventHandlerTestBuilder() { + this.applicationEventHandler = spy(new ApplicationEventHandler( Review Comment: These are constructors, so even though it's not _strictly_ needed, I've been following the standard Java convention. -- This is an automated message from the Apache Git Service. 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