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

68 lines
2.3 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.
#pragma once
#include <memory>
#include <string>
#include <vector>
#include "arrow/filesystem/filesystem.h"
namespace arrow {
namespace fs {
/// \brief EXPERIMENTAL: a FileSystem implementation accessing files
/// on the local machine.
///
/// Details such as symlinks are abstracted away (symlinks are always followed,
/// except when deleting an entry).
class ARROW_EXPORT LocalFileSystem : public FileSystem {
public:
LocalFileSystem();
~LocalFileSystem() override;
using FileSystem::GetTargetStats;
Status GetTargetStats(const std::string& path, FileStats* out) override;
Status GetTargetStats(const Selector& select, std::vector<FileStats>* out) override;
Status CreateDir(const std::string& path, bool recursive = true) override;
Status DeleteDir(const std::string& path) override;
Status DeleteFile(const std::string& path) override;
Status Move(const std::string& src, const std::string& dest) override;
Status CopyFile(const std::string& src, const std::string& dest) override;
Status OpenInputStream(const std::string& path,
std::shared_ptr<io::InputStream>* out) override;
Status OpenInputFile(const std::string& path,
std::shared_ptr<io::RandomAccessFile>* out) override;
Status OpenOutputStream(const std::string& path,
std::shared_ptr<io::OutputStream>* out) override;
Status OpenAppendStream(const std::string& path,
std::shared_ptr<io::OutputStream>* out) override;
};
} // namespace fs
} // namespace arrow