kun yu 77e1ddd81b branch-0.4.0
Former-commit-id: a4df63653202df32d0b983de27f5c969905d17ac
2019-07-30 10:23:34 +08:00

46 lines
1.5 KiB
C++

// 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.
/// Logic for automatically determining the structure of multi-file
/// dataset with possible partitioning according to available
/// partition schemes
#pragma once
#include <memory>
#include <string>
#include "arrow/dataset/type_fwd.h"
#include "arrow/dataset/visibility.h"
#include "arrow/util/macros.h"
namespace arrow {
namespace dataset {
struct ARROW_DS_EXPORT DiscoveryOptions {
std::shared_ptr<FileFormat> format = NULLPTR;
std::shared_ptr<PartitionScheme> partition_scheme = NULLPTR;
};
/// \brief Using a root directory
ARROW_DS_EXPORT
Status DiscoverSource(const std::string& path, fs::FileSystem* filesystem,
const DiscoveryOptions& options, std::shared_ptr<DataSource>* out);
} // namespace dataset
} // namespace arrow