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.sdk.schemas.utils;
  
  import com.google.auto.service.AutoService;
  import javax.annotation.Nullable;
  import org.apache.beam.sdk.schemas.Schema;
  import org.apache.beam.sdk.schemas.SchemaCoder;
  import org.apache.beam.sdk.values.Row;
  import org.apache.beam.sdk.values.TypeDescriptor;
  
  @AutoService(SchemaInformationProvider.class)
  public class RowSchemaInformationProvider implements SchemaInformationProvider {
    @Override
    @Nullable
    public <T> ConvertHelpers.ConvertedSchemaInformation<T> getConvertedSchemaInformation(
        Schema inputSchema, TypeDescriptor<T> outputType) {
      if (outputType.equals(TypeDescriptor.of(Row.class))) {
        // If the output is of type Row, then just forward the schema of the input type to the
        // output.
        return new ConvertHelpers.ConvertedSchemaInformation<>(
            (SchemaCoder<T>) SchemaCoder.of(inputSchema), null);
      }
      return null;
    }
  }
  