ygerzhedovich commented on a change in pull request #9476: URL: https://github.com/apache/ignite/pull/9476#discussion_r733671047
########## File path: modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/RootQuery.java ########## @@ -0,0 +1,350 @@ +/* + * 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.ignite.internal.processors.query.calcite; + +import java.util.HashSet; +import java.util.Iterator; +import java.util.List; +import java.util.Set; +import java.util.UUID; +import java.util.function.Consumer; +import java.util.stream.Collectors; + +import org.apache.calcite.plan.Context; +import org.apache.calcite.schema.SchemaPlus; +import org.apache.calcite.tools.Frameworks; +import org.apache.calcite.util.CancelFlag; +import org.apache.ignite.IgniteCheckedException; +import org.apache.ignite.IgniteException; +import org.apache.ignite.IgniteLogger; +import org.apache.ignite.cache.query.QueryCancelledException; +import org.apache.ignite.internal.cluster.ClusterTopologyCheckedException; +import org.apache.ignite.internal.processors.cache.query.IgniteQueryErrorCode; +import org.apache.ignite.internal.processors.query.GridQueryCancel; +import org.apache.ignite.internal.processors.query.IgniteSQLException; +import org.apache.ignite.internal.processors.query.QueryContext; +import org.apache.ignite.internal.processors.query.QueryState; +import org.apache.ignite.internal.processors.query.calcite.exec.ExchangeService; +import org.apache.ignite.internal.processors.query.calcite.exec.ExecutionContext; +import org.apache.ignite.internal.processors.query.calcite.exec.rel.Node; +import org.apache.ignite.internal.processors.query.calcite.exec.rel.RootNode; +import org.apache.ignite.internal.processors.query.calcite.prepare.BaseQueryContext; +import org.apache.ignite.internal.processors.query.calcite.prepare.Fragment; +import org.apache.ignite.internal.processors.query.calcite.prepare.MultiStepPlan; +import org.apache.ignite.internal.processors.query.calcite.prepare.PlanningContext; +import org.apache.ignite.internal.processors.query.calcite.util.Commons; +import org.apache.ignite.internal.util.typedef.F; +import org.apache.ignite.internal.util.typedef.internal.S; + +import static org.apache.ignite.internal.processors.query.calcite.CalciteQueryProcessor.FRAMEWORK_CONFIG; + +/** + * The RootQuery is created on the qury initiator (originator) node as the first step of a query run; + * It contains the information about query state, contexts, remote fragments; + * It provides 'cancel' functionality for running query like a base query class. + */ +public class RootQuery<RowT> extends Query<RowT> { + /** SQL query. */ + private final String sql; + + /** Parameters. */ + private final Object[] params; + + /** Logger. */ + private final IgniteLogger log; + + /** remote nodes */ + private final Set<UUID> remotes; + + /** node to fragment */ + private final Set<RemoteFragmentKey> waiting; + + /** */ + private volatile RootNode<RowT> root; + + /** */ + private volatile PlanningContext pctx; + + /** */ + private final BaseQueryContext ctx; + + /** */ + private final ExchangeService exch; + + /** */ + public RootQuery( + String sql, + SchemaPlus schema, + Object[] params, + QueryContext qryCtx, + ExchangeService exch, + Consumer<Query<RowT>> unregister, + IgniteLogger log + ) { + super(UUID.randomUUID(), qryCtx != null ? qryCtx.unwrap(GridQueryCancel.class) : null, unregister); + + this.sql = sql; + this.params = params; + this.exch = exch; + this.log = log; + + remotes = new HashSet<>(); + waiting = new HashSet<>(); + + Context parent = Commons.convert(qryCtx); + + ctx = BaseQueryContext.builder() + .parentContext(parent) + .frameworkConfig( + Frameworks.newConfigBuilder(FRAMEWORK_CONFIG) + .defaultSchema(schema) + .build() + ) + .logger(log) + .build(); + } + + /** + * Creates the new root that inherits the query parameters from {@code this} query. + * Is used to execute DML query immediately after (inside) DDL. + * e.g.: + * CREATE TABLE MY_TABLE AS SELECT ... FROM ...; + * + * @param schema new schema. + */ + public RootQuery<RowT> childQuery(SchemaPlus schema) { + return new RootQuery<>(sql, schema, params, QueryContext.of(cancel), exch, unregister, log); + } + + /** */ + public BaseQueryContext context() { + return ctx; + } + + /** */ + public String sql() { + return sql; + } + + /** */ + public Object[] parameters() { + return params; + } + + /** + * Starts maping phase for the query. + */ + public void mapping() { + synchronized (this) { Review comment: is it possible that we will take a lock on a different objects? THIS for RootQuery and for Query could be not the same. -- 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]
