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.arrow.dataset.substrait;
  
  import java.nio.ByteBuffer;
  import org.apache.arrow.dataset.jni.JniLoader;
  
  /**
   * Class that contains Native methods to call Acero C++ Substrait API. It internally depends on C++
   * function arrow::engine::ExecuteSerializedPlan. Currently supported input parameters supported
   * are:
   *
   * <pre>
   * - arrow::Buffer: Substrait Plan (JSON or Binary format).
   * - arrow::engine::ConversionOptions: Mapping for arrow::engine::NamedTableProvider.
   * </pre>
   */
  final class JniWrapper {
    private static final JniWrapper INSTANCE = new JniWrapper();
  
    private JniWrapper() {}
  
    public static JniWrapper get() {
      JniLoader.get().ensureLoaded();
      return INSTANCE;
    }
  
    /**
     * Consume the JSON Substrait Plan that contains Named Tables and export the RecordBatchReader
     * into C-Data Interface ArrowArrayStream.
     *
     * @param planInput the JSON Substrait plan.
     * @param mapTableToMemoryAddressInput the mapping name of Tables Name on position `i` and theirs
     *     Memory Address representation on `i+1` position linearly.
     *     <pre>{@code String[] mapTableToMemoryAddress = new String[2];
     * mapTableToMemoryAddress[0]="NATION";
     * mapTableToMemoryAddress[1]="140650250895360";}</pre>
     *
     * @param memoryAddressOutput the memory address where RecordBatchReader is exported.
     */
    public native void executeSerializedPlan(
        String planInput, String[] mapTableToMemoryAddressInput, long memoryAddressOutput);
  
    /**
     * Consume the binary Substrait Plan that contains Named Tables and export the RecordBatchReader
     * into C-Data Interface ArrowArrayStream.
     *
     * @param planInput the binary Substrait plan.
     * @param mapTableToMemoryAddressInput the mapping name of Tables Name on position `i` and theirs
     *     Memory Address representation on `i+1` position linearly.
     *     <pre>{@code String[] mapTableToMemoryAddress = new String[2];
     * mapTableToMemoryAddress[0]="NATION";
     * mapTableToMemoryAddress[1]="140650250895360";}</pre>
     *
     * @param memoryAddressOutput the memory address where RecordBatchReader is exported.
     */
    public native void executeSerializedPlan(
        ByteBuffer planInput, String[] mapTableToMemoryAddressInput, long memoryAddressOutput);
  }
  