/*
 * 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.drill.exec.store.mapr.db.json;

import org.apache.drill.exec.exception.SchemaChangeException;
import org.apache.drill.exec.vector.complex.impl.VectorContainerWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.mapr.db.ojai.DBDocumentReaderBase;

/**
 * Base class for writing a single OJAI Document to Drill's Value Vectors.
 */
abstract class DocumentReaderVectorWriter {
  protected static final Logger logger = LoggerFactory.getLogger(DocumentReaderVectorWriter.class);

  protected final OjaiValueWriter valueWriter;

  protected DocumentReaderVectorWriter(final OjaiValueWriter valueWriter) {
    this.valueWriter = valueWriter;
  }

  protected abstract void writeDBDocument(final VectorContainerWriter writer, final DBDocumentReaderBase reader)
      throws SchemaChangeException;

}
