cmccabe commented on code in PR #13461: URL: https://github.com/apache/kafka/pull/13461#discussion_r1171941706
########## metadata/src/main/java/org/apache/kafka/metadata/migration/KRaftMigrationZkWriter.java: ########## @@ -0,0 +1,333 @@ +/* + * 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.metadata.migration; + +import org.apache.kafka.common.TopicIdPartition; +import org.apache.kafka.common.Uuid; +import org.apache.kafka.common.acl.AccessControlEntry; +import org.apache.kafka.common.config.ConfigResource; +import org.apache.kafka.common.quota.ClientQuotaEntity; +import org.apache.kafka.common.resource.ResourcePattern; +import org.apache.kafka.image.AclsDelta; +import org.apache.kafka.image.AclsImage; +import org.apache.kafka.image.ClientQuotasDelta; +import org.apache.kafka.image.ClientQuotasImage; +import org.apache.kafka.image.ConfigurationsDelta; +import org.apache.kafka.image.ConfigurationsImage; +import org.apache.kafka.image.MetadataDelta; +import org.apache.kafka.image.MetadataImage; +import org.apache.kafka.image.TopicImage; +import org.apache.kafka.image.TopicsDelta; +import org.apache.kafka.image.TopicsImage; +import org.apache.kafka.metadata.PartitionRegistration; +import org.apache.kafka.metadata.authorizer.StandardAcl; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.EnumSet; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Optional; +import java.util.Set; +import java.util.function.BiConsumer; +import java.util.function.Function; +import java.util.stream.Collectors; + +public class KRaftMigrationZkWriter { + private final MigrationClient migrationClient; + private final BiConsumer<String, KRaftMigrationOperation> operationConsumer; + + public KRaftMigrationZkWriter( + MigrationClient migrationClient, + BiConsumer<String, KRaftMigrationOperation> operationConsumer + ) { + this.migrationClient = migrationClient; + this.operationConsumer = operationConsumer; + } + + public void handleSnapshot(MetadataImage image) { + handleTopicsSnapshot(image.topics()); + handleConfigsSnapshot(image.configs()); + handleClientQuotasSnapshot(image.clientQuotas()); + operationConsumer.accept("Setting next producer ID", migrationState -> + migrationClient.writeProducerId(image.producerIds().highestSeenProducerId(), migrationState)); + handleAclsSnapshot(image.acls()); + } + + public void handleDelta(MetadataImage previousImage, MetadataImage image, MetadataDelta delta) { Review Comment: We are missing handling for `clusterDelta` here, right? Specifically, we need to write out KRaft brokers to /brokers. ZK-based brokers will continue to write themselves out. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
