/*
 * 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));
  }
}
