src/iceberg/arrow/arrow_register.cc

/*
 * 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.
 */

#include "iceberg/arrow/arrow_register.h"

#include <mutex>
#include <string>
#include <string_view>

#include "iceberg/arrow/arrow_io_util.h"
#include "iceberg/arrow/s3/s3_properties.h"
#include "iceberg/file_io_registry.h"

namespace iceberg {
void RegisterArrowProjectBatch();
}

namespace iceberg::arrow {

namespace {

void RegisterLocalFileIO() {
  FileIORegistry::Register(
      std::string(FileIORegistry::kArrowLocalFileIO),
      {.create = [](const FileIORegistry::Properties& /*properties*/)
           -> Result<std::unique_ptr<FileIO>> { return MakeLocalFileIO(); },
       .accepts =
           [](std::string_view scheme) { return scheme.empty() || scheme == "file"; }});
}

void RegisterS3FileIO() {
#if ICEBERG_S3_ENABLED
  FileIORegistry::Register(
      std::string(FileIORegistry::kArrowS3FileIO),
      {.create = [](const FileIORegistry::Properties& properties)
           -> Result<std::unique_ptr<FileIO>> { return MakeS3FileIO(properties); },
       .accepts = [](std::string_view scheme) { return IsS3Scheme(scheme); }});
#endif
}

void EnsureArrowFileIOsRegistered() {
  static std::once_flag flag;
  std::call_once(flag, []() {
    RegisterLocalFileIO();
    RegisterS3FileIO();
  });
}

[[maybe_unused]] const bool kArrowFileIOsRegistered = []() {
  EnsureArrowFileIOsRegistered();
  return true;
}();

}  // namespace

void RegisterAll() {
  EnsureArrowFileIOsRegistered();
  ::iceberg::RegisterArrowProjectBatch();
}

}  // namespace iceberg::arrow