| /* |
| * 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.beam.sdk.extensions.sql; |
| |
| import org.apache.beam.sdk.Pipeline; |
| import org.apache.beam.sdk.annotations.Experimental; |
| import org.apache.beam.sdk.extensions.sql.impl.BeamSqlEnv; |
| import org.apache.beam.sdk.extensions.sql.impl.ParseException; |
| import org.apache.beam.sdk.extensions.sql.impl.rel.BeamEnumerableConverter; |
| import org.apache.beam.sdk.extensions.sql.impl.rel.BeamSqlRelUtils; |
| import org.apache.beam.sdk.extensions.sql.meta.store.MetaStore; |
| import org.apache.beam.sdk.options.PipelineOptions; |
| import org.apache.beam.sdk.options.PipelineOptionsFactory; |
| |
| /** {@link BeamSqlCli} provides methods to execute Beam SQL with an interactive client. */ |
| @Experimental |
| public class BeamSqlCli { |
| private BeamSqlEnv env; |
| /** The store which persists all the table meta data. */ |
| private MetaStore metaStore; |
| |
| public BeamSqlCli metaStore(MetaStore metaStore) { |
| return metaStore(metaStore, false, PipelineOptionsFactory.create()); |
| } |
| |
| public BeamSqlCli metaStore( |
| MetaStore metaStore, boolean autoLoadUdfUdaf, PipelineOptions pipelineOptions) { |
| this.metaStore = metaStore; |
| BeamSqlEnv.BeamSqlEnvBuilder builder = BeamSqlEnv.builder(metaStore); |
| if (autoLoadUdfUdaf) { |
| builder.autoLoadUserDefinedFunctions(); |
| } |
| builder.setPipelineOptions(pipelineOptions); |
| this.env = builder.build(); |
| return this; |
| } |
| |
| public MetaStore getMetaStore() { |
| return metaStore; |
| } |
| |
| /** Returns a human readable representation of the query execution plan. */ |
| public String explainQuery(String sqlString) throws ParseException { |
| return env.explain(sqlString); |
| } |
| |
| /** Executes the given sql. */ |
| public void execute(String sqlString) throws ParseException { |
| |
| if (env.isDdl(sqlString)) { |
| env.executeDdl(sqlString); |
| } else { |
| PipelineOptions options = |
| BeamEnumerableConverter.createPipelineOptions(env.getPipelineOptions()); |
| options.setJobName("BeamPlanCreator"); |
| Pipeline pipeline = Pipeline.create(options); |
| BeamSqlRelUtils.toPCollection(pipeline, env.parseQuery(sqlString)); |
| pipeline.run(); |
| } |
| } |
| } |