import com.google.api.services.bigquery.Bigquery.Datasets; //导入依赖的package包/类
private void setupBigQueryTable(String projectId, String datasetId, String tableId,
    TableSchema schema) throws IOException {
  if (bigQueryClient == null) {
    bigQueryClient = Transport.newBigQueryClient(options.as(BigQueryOptions.class)).build();
  }

  Datasets datasetService = bigQueryClient.datasets();
  if (executeNullIfNotFound(datasetService.get(projectId, datasetId)) == null) {
    Dataset newDataset = new Dataset().setDatasetReference(
        new DatasetReference().setProjectId(projectId).setDatasetId(datasetId));
    datasetService.insert(projectId, newDataset).execute();
  }

  Tables tableService = bigQueryClient.tables();
  Table table = executeNullIfNotFound(tableService.get(projectId, datasetId, tableId));
  if (table == null) {
    Table newTable = new Table().setSchema(schema).setTableReference(
        new TableReference().setProjectId(projectId).setDatasetId(datasetId).setTableId(tableId));
    tableService.insert(projectId, datasetId, newTable).execute();
  } else if (!table.getSchema().equals(schema)) {
    throw new RuntimeException(
        "Table exists and schemas do not match, expecting: " + schema.toPrettyString()
        + ", actual: " + table.getSchema().toPrettyString());
  }
}
 

import com.google.api.services.bigquery.Bigquery.Datasets; //导入依赖的package包/类
private void setupBigQueryTable(String projectId, String datasetId, String tableId,
    TableSchema schema) throws IOException {
  if (bigQueryClient == null) {
    bigQueryClient = newBigQueryClient(options.as(BigQueryOptions.class)).build();
  }

  Datasets datasetService = bigQueryClient.datasets();
  if (executeNullIfNotFound(datasetService.get(projectId, datasetId)) == null) {
    Dataset newDataset = new Dataset().setDatasetReference(
        new DatasetReference().setProjectId(projectId).setDatasetId(datasetId));
    datasetService.insert(projectId, newDataset).execute();
  }

  Tables tableService = bigQueryClient.tables();
  Table table = executeNullIfNotFound(tableService.get(projectId, datasetId, tableId));
  if (table == null) {
    Table newTable = new Table().setSchema(schema).setTableReference(
        new TableReference().setProjectId(projectId).setDatasetId(datasetId).setTableId(tableId));
    tableService.insert(projectId, datasetId, newTable).execute();
  } else if (!table.getSchema().equals(schema)) {
    throw new RuntimeException(
        "Table exists and schemas do not match, expecting: " + schema.toPrettyString()
        + ", actual: " + table.getSchema().toPrettyString());
  }
}