content: /*
   * 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.
   */
  
  // beam-playground:
  //   name: read-query
  //   description: BigQuery read query example.
  //   multifile: false
  //   context_line: 56
  //   categories:
  //     - Quickstart
  //   complexity: ADVANCED
  //   tags:
  //     - hellobeam
  
  import com.google.api.services.bigquery.model.TableRow;
  import org.apache.beam.sdk.Pipeline;
  import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO;
  import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO.TypedRead;
  import org.apache.beam.sdk.options.PipelineOptions;
  import org.apache.beam.sdk.options.PipelineOptionsFactory;
  import org.apache.beam.sdk.transforms.DoFn;
  import org.apache.beam.sdk.transforms.ParDo;
  import org.apache.beam.sdk.values.PCollection;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  
  public class Task {
      private static final Logger LOG = LoggerFactory.getLogger(Task.class);
  
      private static final String WEATHER_SAMPLES_QUERY =
              "select * from `clouddataflow-readonly.samples.weather_stations`";
  
      public static void applyBigQueryTornadoes(Pipeline p) {
          /*TypedRead<TableRow> bigqueryIO =
                  BigQueryIO.readTableRows()
                          .fromQuery(WEATHER_SAMPLES_QUERY)
                          .usingStandardSql();
  
  
          PCollection<TableRow> rowsFromBigQuery = p.apply(bigqueryIO);
  
          rowsFromBigQuery
                  .apply(ParDo.of(new LogOutput<>("Result: ")));*/
      }
  
      public static void runBigQueryTornadoes(PipelineOptions options) {
          Pipeline p = Pipeline.create(options);
          applyBigQueryTornadoes(p);
          p.run().waitUntilFinish();
      }
  
      public static void main(String[] args) {
          PipelineOptions options =
                  PipelineOptionsFactory.fromArgs(args).withValidation().as(PipelineOptions.class);
          runBigQueryTornadoes(options);
      }
  
      static class LogOutput<T> extends DoFn<T, T> {
          private final String prefix;
  
          LogOutput(String prefix) {
              this.prefix = prefix;
          }
  
          @ProcessElement
          public void processElement(ProcessContext c) {
              LOG.info(prefix + c.element());
              c.output(c.element());
          }
      }
  }
  