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123 lines
4.3 KiB
C#
123 lines
4.3 KiB
C#
using MediaBrowser.Common.Extensions;
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using System;
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using System.IO;
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namespace MediaBrowser.Common.IO
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{
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/// <summary>
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/// This is a wrapper for storing large numbers of files within a directory on a file system.
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/// Simply pass a filename into GetResourcePath and it will return a full path location of where the file should be stored.
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/// </summary>
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public class FileSystemRepository
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{
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/// <summary>
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/// Gets or sets the path.
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/// </summary>
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/// <value>The path.</value>
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protected string Path { get; set; }
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/// <summary>
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/// Initializes a new instance of the <see cref="FileSystemRepository" /> class.
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/// </summary>
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/// <param name="path">The path.</param>
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/// <exception cref="System.ArgumentNullException"></exception>
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public FileSystemRepository(string path)
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{
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if (string.IsNullOrEmpty(path))
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{
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throw new ArgumentNullException();
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}
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Path = path;
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}
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/// <summary>
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/// Gets the full path of where a resource should be stored within the repository
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/// </summary>
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/// <param name="uniqueName">Name of the unique.</param>
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/// <param name="fileExtension">The file extension.</param>
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/// <returns>System.String.</returns>
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/// <exception cref="System.ArgumentNullException">
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/// </exception>
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public string GetResourcePath(string uniqueName, string fileExtension)
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{
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if (string.IsNullOrEmpty(uniqueName))
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{
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throw new ArgumentNullException("uniqueName");
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}
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if (string.IsNullOrEmpty(fileExtension))
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{
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throw new ArgumentNullException("fileExtension");
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}
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var filename = uniqueName.GetMD5() + fileExtension;
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return GetResourcePath(filename);
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}
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/// <summary>
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/// Gets the resource path.
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/// </summary>
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/// <param name="filename">The filename.</param>
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/// <returns>System.String.</returns>
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/// <exception cref="System.ArgumentNullException"></exception>
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public string GetResourcePath(string filename)
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{
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if (string.IsNullOrEmpty(filename))
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{
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throw new ArgumentNullException("filename");
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}
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var prefix = filename.Substring(0, 1);
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var path = System.IO.Path.Combine(Path, prefix);
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return System.IO.Path.Combine(path, filename);
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}
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/// <summary>
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/// Determines if a resource is present in the repository
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/// </summary>
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/// <param name="uniqueName">Name of the unique.</param>
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/// <param name="fileExtension">The file extension.</param>
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/// <returns><c>true</c> if the specified unique name contains resource; otherwise, <c>false</c>.</returns>
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public bool ContainsResource(string uniqueName, string fileExtension)
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{
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return ContainsFilePath(GetResourcePath(uniqueName, fileExtension));
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}
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/// <summary>
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/// Determines if a file with a given name is present in the repository
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/// </summary>
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/// <param name="filename">The filename.</param>
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/// <returns><c>true</c> if the specified filename contains filename; otherwise, <c>false</c>.</returns>
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/// <exception cref="System.ArgumentNullException"></exception>
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public bool ContainsFilename(string filename)
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{
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if (string.IsNullOrEmpty(filename))
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{
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throw new ArgumentNullException();
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}
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return ContainsFilePath(GetResourcePath(filename));
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}
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/// <summary>
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/// Determines if a file is present in the repository
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/// </summary>
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/// <param name="path">The path.</param>
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/// <returns><c>true</c> if [contains file path] [the specified path]; otherwise, <c>false</c>.</returns>
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/// <exception cref="System.ArgumentNullException"></exception>
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public bool ContainsFilePath(string path)
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{
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if (string.IsNullOrEmpty(path))
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{
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throw new ArgumentNullException();
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}
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return File.Exists(path);
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}
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}
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}
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