rohangarg commented on code in PR #12715: URL: https://github.com/apache/druid/pull/12715#discussion_r914126480
########## sql/src/main/java/org/apache/druid/sql/calcite/rule/DruidExtensionCalciteRuleManager.java: ########## @@ -0,0 +1,54 @@ +/* + * 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.druid.sql.calcite.rule; + +import com.google.common.collect.ImmutableList; +import com.google.inject.Inject; +import org.apache.calcite.plan.RelOptRule; +import org.apache.druid.sql.calcite.planner.PlannerContext; + +import java.util.List; +import java.util.Set; + +/** + * Manages the custom calcite rules coming from extensions + */ +public class DruidExtensionCalciteRuleManager +{ + private final Set<DruidExtensionCalciteRuleProvider> druidExtensionCalciteRuleProviderSet; + + @Inject + public DruidExtensionCalciteRuleManager( + Set<DruidExtensionCalciteRuleProvider> druidExtensionCalciteRuleProviderSet + ) + { + this.druidExtensionCalciteRuleProviderSet = druidExtensionCalciteRuleProviderSet; + } + + public List<RelOptRule> updateDruidConventionRuleSet(PlannerContext plannerContext, List<RelOptRule> coreRules) Review Comment: > But it also couldn't be done with the current code, right? In the current code the manager is a concrete class, not an interface. So there isn't a clean way for an extension to change this to replace rules. Unless I'm missing something? @cheddar pointed that it should be doable from the existing code given the way we bind the extension modules. I did a small test just now and was able to override the RuleManager with a custom one I built in an extension. Further checking the documentation for override modules (https://google.github.io/guice/api-docs/latest/javadoc/com/google/inject/util/Modules.html#override(java.lang.Iterable)) says that it uses the overriding binding and skips the base one altogether. -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
