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//
// DataFile.swift
// FileKit
//
// The MIT License (MIT)
//
// Copyright (c) 2015-2017 Nikolai Vazquez
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
import Foundation
/// A representation of a filesystem data file.
///
/// The data type is Data.
open class DataFile: File<Data> {
/// Reads the file and returns its data.
/// - Parameter options: A mask that specifies write options
/// described in `Data.ReadingOptions`.
///
/// - Throws: `FileKitError.ReadFromFileFail`
/// - Returns: The data read from file.
public func read(_ options: Data.ReadingOptions) throws -> Data {
return try Data.read(from: path, options: options)
}
/// Writes data to the file.
///
/// - Parameter data: The data to be written to the file.
/// - Parameter options: A mask that specifies write options
/// described in `Data.WritingOptions`.
///
/// - Throws: `FileKitError.WriteToFileFail`
///
public func write(_ data: Data, options: Data.WritingOptions) throws {
try data.write(to: self.path, options: options)
}
}
/// A representation of a filesystem data file,
/// with options to read or write.
///
/// The data type is Data.
open class DataFileWithOptions: DataFile {
open var readingOptions: Data.ReadingOptions = []
open var writingOptions: Data.WritingOptions?
/// Initializes a file from a path with options.
///
/// - Parameter path: The path to be created a text file from.
/// - Parameter readingOptions: The options to be used to read file.
/// - Parameter writingOptions: The options to be used to write file.
/// If nil take into account `useAuxiliaryFile`
public init(path: Path, readingOptions: Data.ReadingOptions = [], writingOptions: Data.WritingOptions? = nil) {
self.readingOptions = readingOptions
self.writingOptions = writingOptions
super.init(path: path)
}
open override func read() throws -> Data {
return try read(readingOptions)
}
open override func write(_ data: Data, atomically useAuxiliaryFile: Bool) throws {
// If no option take into account useAuxiliaryFile
let options: Data.WritingOptions = (writingOptions == nil) ?
(useAuxiliaryFile ? Data.WritingOptions.atomic : [])
: writingOptions!
try self.write(data, options: options)
}
}