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.asterix.external.input.record.reader.stream;
  
  import static org.apache.asterix.external.util.ExternalDataConstants.EMPTY_STRING;
  import static org.apache.asterix.external.util.ExternalDataConstants.KEY_REDACT_WARNINGS;
  
  import java.util.List;
  import java.util.Map;
  import java.util.function.Supplier;
  
  import org.apache.asterix.external.api.AsterixInputStream;
  import org.apache.asterix.external.api.IRecordReader;
  import org.apache.asterix.external.util.ExternalDataUtils;
  import org.apache.hyracks.api.context.IHyracksTaskContext;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  
  public abstract class AbstractStreamRecordReader<T> implements IRecordReader<T> {
      private Supplier<String> dataSourceName = EMPTY_STRING;
      private Supplier<String> previousDataSourceName = EMPTY_STRING;
  
      protected final void setSuppliers(Map<String, String> config, Supplier<String> dataSourceName,
              Supplier<String> previousDataSourceName) {
          if (!ExternalDataUtils.isTrue(config, KEY_REDACT_WARNINGS)) {
              this.dataSourceName = dataSourceName;
              this.previousDataSourceName = previousDataSourceName;
          }
      }
  
      @Override
      public final Supplier<String> getDataSourceName() {
          return dataSourceName;
      }
  
      protected final String getPreviousStreamName() {
          return previousDataSourceName.get();
      }
  
      public abstract List<String> getRecordReaderFormats();
  
      public abstract void configure(IHyracksTaskContext ctx, AsterixInputStream inputStream, Map<String, String> config)
              throws HyracksDataException;
  }
  