jolshan commented on code in PR #15685: URL: https://github.com/apache/kafka/pull/15685#discussion_r1611825497
########## server-common/src/main/java/org/apache/kafka/server/common/FeatureVersion.java: ########## @@ -0,0 +1,49 @@ +/* + * 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.server.common; + +import java.util.Map; + +public interface FeatureVersion { + + /** + * The level of the feature. 0 means the feature is disabled. + */ + short featureLevel(); + + /** + * The name of the feature. + */ + String featureName(); + + /** + * The minimum metadata version which sets this feature version as default. When bootstrapping using only + * a metadata version, a reasonable default for all other features is chosen based on this value. + * This should be defined as the next metadata version to be released when the feature version becomes production ready. + * (Ie, if the current production MV is 17 when a feature version is released, its mapping should be to MV 18) Review Comment: My thought process is that we will just attach it to the current next unstable one. If there is no such MV we create it and if there is still no feature atttached to it, we will just release it at the release. I probably need to write up a formal doc on how this will work. -- 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
