io.cdap.plugin.gcp.bigquery.sink.BigQueryAvroConverter Maven / Gradle / Ivy

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/*
 * Copyright © 2021 Cask Data, Inc.
 *
 * Licensed 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 io.cdap.plugin.gcp.bigquery.sink;

import io.cdap.cdap.api.data.format.StructuredRecord;
import io.cdap.cdap.api.data.schema.Schema;
import io.cdap.plugin.common.RecordConverter;
import io.cdap.plugin.format.avro.StructuredToAvroTransformer;
import org.apache.avro.generic.GenericRecord;
import org.apache.avro.mapred.AvroKey;

import java.io.IOException;
import javax.annotation.Nullable;

/**
 * BigQueryAvroConverter converts a {@link StructuredRecord} to {@link AvroKey}
 */
public class BigQueryAvroConverter extends RecordConverter> {

  private final StructuredToAvroTransformer structuredToAvroTransformer;

  BigQueryAvroConverter() {
    structuredToAvroTransformer = new StructuredToAvroTransformer(null);
  }

  @Override
  public AvroKey transform(StructuredRecord record, @Nullable Schema schema) throws IOException {
    return new AvroKey<>(structuredToAvroTransformer.transform(record, schema == null ? record.getSchema() : schema));
  }
}