wehub-resource-sync
99 lines
3.0 KiB
C#
99 lines
3.0 KiB
C#
/*
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* QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
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* Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System.IO;
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using System.Collections.Generic;
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namespace QuantConnect.Lean.Engine.Storage
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{
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/// <summary>
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/// Raw file handler
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/// </summary>
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/// <remarks>Useful to abstract file operations for <see cref="LocalObjectStore"/></remarks>
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public class FileHandler
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{
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/// <summary>
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/// True if the given file path exists
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/// </summary>
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public virtual bool Exists(string path)
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{
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return File.Exists(path);
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}
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/// <summary>
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/// Will delete the given file path
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/// </summary>
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public virtual void Delete(string path)
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{
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File.Delete(path);
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}
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/// <summary>
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/// Will write the given byte array at the target file path
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/// </summary>
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public virtual void WriteAllBytes(string path, byte[] data)
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{
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File.WriteAllBytes(path, data);
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}
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/// <summary>
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/// Read all bytes in the given file path
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/// </summary>
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public virtual byte[] ReadAllBytes(string path)
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{
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return File.ReadAllBytes(path);
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}
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/// <summary>
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/// Will try to fetch the given file length, will return 0 if it doesn't exist
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/// </summary>
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public virtual long TryGetFileLength(string path)
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{
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var fileInfo = new FileInfo(path);
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if (fileInfo.Exists)
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{
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return fileInfo.Length;
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}
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return 0;
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}
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/// <summary>
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/// True if the given directory exists
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/// </summary>
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public virtual bool DirectoryExists(string path)
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{
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return Directory.Exists(path);
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}
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/// <summary>
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/// Create the requested directory path
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/// </summary>
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public virtual DirectoryInfo CreateDirectory(string path)
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{
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return Directory.CreateDirectory(path);
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}
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/// <summary>
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/// Enumerate the files in the target path
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/// </summary>
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public virtual IEnumerable<FileInfo> EnumerateFiles(string path, string pattern, SearchOption searchOption, out string rootfolder)
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{
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var directoryInfo = new DirectoryInfo(path);
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rootfolder = directoryInfo.FullName;
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return directoryInfo.EnumerateFiles(pattern, searchOption);
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}
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}
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}
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