/* * 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.kylin.query.exec; import org.apache.calcite.DataContext; import org.apache.calcite.linq4j.Enumerable; import org.apache.calcite.linq4j.Linq4j; import org.apache.calcite.rel.type.RelDataType; import org.apache.kylin.common.QueryContextFacade; import org.apache.kylin.common.debug.BackdoorToggles; import org.apache.kylin.query.relnode.OLAPRel; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class SparkExec { private static final Logger logger = LoggerFactory.getLogger(SparkExec.class); public static Enumerable<Object[]> collectToEnumerable(DataContext dataContext) { if (BackdoorToggles.getPrepareOnly()) { return Linq4j.emptyEnumerable(); } OLAPRel olapRel = (OLAPRel) QueryContextFacade.current().getOlapRel(); RelDataType rowType = (RelDataType) QueryContextFacade.current().getResultType(); try { Enumerable<Object[]> computer = QueryEngineFactory.compute(dataContext, olapRel, rowType); return computer; } catch (Exception e) { throw new RuntimeException(e); } } public static Enumerable<Object> collectToScalarEnumerable(DataContext dataContext) { if (BackdoorToggles.getPrepareOnly()) { return Linq4j.emptyEnumerable(); } OLAPRel olapRel = (OLAPRel) QueryContextFacade.current().getOlapRel(); RelDataType rowType = (RelDataType) QueryContextFacade.current().getResultType(); try { Enumerable<Object> objects = QueryEngineFactory.computeSCALA(dataContext, olapRel, rowType); return objects; } catch (Exception e) { throw new RuntimeException(e); } } public static Enumerable<Object[]> asyncResult(DataContext dataContext) { if (BackdoorToggles.getPrepareOnly()) { return Linq4j.emptyEnumerable(); } OLAPRel olapRel = (OLAPRel) QueryContextFacade.current().getOlapRel(); RelDataType rowType = (RelDataType) QueryContextFacade.current().getResultType(); return QueryEngineFactory.computeAsync(dataContext, olapRel, rowType); } }