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.
   */
  package org.apache.beam.examples.complete.game.utils;
  
  import com.google.api.services.bigquery.model.TableRow;
  import java.util.Map;
  import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO;
  import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO.Write.CreateDisposition;
  import org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO.Write.WriteDisposition;
  import org.apache.beam.sdk.io.gcp.bigquery.InsertRetryPolicy;
  import org.apache.beam.sdk.transforms.DoFn;
  import org.apache.beam.sdk.transforms.ParDo;
  import org.apache.beam.sdk.transforms.windowing.BoundedWindow;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.beam.sdk.values.PDone;
  
  /**
   * Generate, format, and write BigQuery table row information. Subclasses {@link WriteToBigQuery} to
   * require windowing; so this subclass may be used for writes that require access to the context's
   * window information.
   */
  public class WriteWindowedToBigQuery<T> extends WriteToBigQuery<T> {
  
    public WriteWindowedToBigQuery(
        String projectId, String datasetId, String tableName, Map<String, FieldInfo<T>> fieldInfo) {
      super(projectId, datasetId, tableName, fieldInfo);
    }
  
    /** Convert each key/score pair into a BigQuery TableRow. */
    protected class BuildRowFn extends DoFn<T, TableRow> {
      @ProcessElement
      public void processElement(ProcessContext c, BoundedWindow window) {
  
        TableRow row = new TableRow();
        for (Map.Entry<String, FieldInfo<T>> entry : fieldInfo.entrySet()) {
          String key = entry.getKey();
          FieldInfo<T> fcnInfo = entry.getValue();
          row.set(key, fcnInfo.getFieldFn().apply(c, window));
        }
        c.output(row);
      }
    }
  
    @Override
    public PDone expand(PCollection<T> teamAndScore) {
      teamAndScore
          .apply("ConvertToRow", ParDo.of(new BuildRowFn()))
          .apply(
              BigQueryIO.writeTableRows()
                  .to(getTable(projectId, datasetId, tableName))
                  .withSchema(getSchema())
                  .withCreateDisposition(CreateDisposition.CREATE_IF_NEEDED)
                  .withWriteDisposition(WriteDisposition.WRITE_APPEND)
                  .withFailedInsertRetryPolicy(InsertRetryPolicy.retryTransientErrors()));
      return PDone.in(teamAndScore.getPipeline());
    }
  }
  