93 lines
3.2 KiB
C#
93 lines
3.2 KiB
C#
//
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// Copyright (c) 2008-2011, Kenneth Bell
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.IO;
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using DiscUtils.Internal;
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namespace DiscUtils
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{
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internal sealed class DiscFileLocator : FileLocator
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{
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private readonly string _basePath;
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private readonly DiscFileSystem _fileSystem;
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public DiscFileLocator(DiscFileSystem fileSystem, string basePath)
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{
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_fileSystem = fileSystem;
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_basePath = basePath;
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}
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public override bool Exists(string fileName)
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{
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return _fileSystem.FileExists(Utilities.CombinePaths(_basePath, fileName));
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}
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protected override Stream OpenFile(string fileName, FileMode mode, FileAccess access, FileShare share)
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{
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return _fileSystem.OpenFile(Utilities.CombinePaths(_basePath, fileName), mode, access);
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}
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public override FileLocator GetRelativeLocator(string path)
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{
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return new DiscFileLocator(_fileSystem, Utilities.CombinePaths(_basePath, path));
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}
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public override string GetFullPath(string path)
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{
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return Utilities.CombinePaths(_basePath, path);
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}
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public override string GetDirectoryFromPath(string path)
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{
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return Utilities.GetDirectoryFromPath(path);
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}
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public override string GetFileFromPath(string path)
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{
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return Utilities.GetFileFromPath(path);
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}
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public override DateTime GetLastWriteTimeUtc(string path)
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{
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return _fileSystem.GetLastWriteTimeUtc(Utilities.CombinePaths(_basePath, path));
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}
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public override bool HasCommonRoot(FileLocator other)
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{
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DiscFileLocator otherDiscLocator = other as DiscFileLocator;
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if (otherDiscLocator == null)
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{
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return false;
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}
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// Common root if the same file system instance.
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return ReferenceEquals(otherDiscLocator._fileSystem, _fileSystem);
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}
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public override string ResolveRelativePath(string path)
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{
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return Utilities.ResolveRelativePath(_basePath, path);
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}
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}
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} |