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.file;
  
  import java.util.Optional;
  import org.apache.arrow.dataset.jni.NativeDatasetFactory;
  import org.apache.arrow.dataset.jni.NativeMemoryPool;
  import org.apache.arrow.dataset.scanner.FragmentScanOptions;
  import org.apache.arrow.memory.BufferAllocator;
  
  /** Java binding of the C++ FileSystemDatasetFactory. */
  public class FileSystemDatasetFactory extends NativeDatasetFactory {
  
    public FileSystemDatasetFactory(
        BufferAllocator allocator, NativeMemoryPool memoryPool, FileFormat format, String uri) {
      super(allocator, memoryPool, createNative(format, uri, Optional.empty()));
    }
  
    public FileSystemDatasetFactory(
        BufferAllocator allocator,
        NativeMemoryPool memoryPool,
        FileFormat format,
        String uri,
        Optional<FragmentScanOptions> fragmentScanOptions) {
      super(allocator, memoryPool, createNative(format, uri, fragmentScanOptions));
    }
  
    public FileSystemDatasetFactory(
        BufferAllocator allocator, NativeMemoryPool memoryPool, FileFormat format, String[] uris) {
      super(allocator, memoryPool, createNative(format, uris, Optional.empty()));
    }
  
    public FileSystemDatasetFactory(
        BufferAllocator allocator,
        NativeMemoryPool memoryPool,
        FileFormat format,
        String[] uris,
        Optional<FragmentScanOptions> fragmentScanOptions) {
      super(allocator, memoryPool, createNative(format, uris, fragmentScanOptions));
    }
  
    private static long createNative(
        FileFormat format, String uri, Optional<FragmentScanOptions> fragmentScanOptions) {
      return JniWrapper.get()
          .makeFileSystemDatasetFactory(
              uri, format.id(), fragmentScanOptions.map(FragmentScanOptions::serialize).orElse(null));
    }
  
    private static long createNative(
        FileFormat format, String[] uris, Optional<FragmentScanOptions> fragmentScanOptions) {
      return JniWrapper.get()
          .makeFileSystemDatasetFactoryWithFiles(
              uris,
              format.id(),
              fragmentScanOptions.map(FragmentScanOptions::serialize).orElse(null));
    }
  }
  