72 lines
2.7 KiB
C#
72 lines
2.7 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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using DiscUtils.Setup;
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namespace DiscUtils
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{
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public abstract class FileLocator
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{
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public abstract bool Exists(string fileName);
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public Stream Open(string fileName, FileMode mode, FileAccess access, FileShare share)
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{
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var args = new FileOpenEventArgs(fileName, mode, access, share, OpenFile);
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SetupHelper.OnOpeningFile(this, args);
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if (args.Result != null)
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return args.Result;
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return OpenFile(args.FileName, args.FileMode, args.FileAccess, args.FileShare);
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}
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protected abstract Stream OpenFile(string fileName, FileMode mode, FileAccess access, FileShare share);
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public abstract FileLocator GetRelativeLocator(string path);
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public abstract string GetFullPath(string path);
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public abstract string GetDirectoryFromPath(string path);
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public abstract string GetFileFromPath(string path);
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public abstract DateTime GetLastWriteTimeUtc(string path);
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public abstract bool HasCommonRoot(FileLocator other);
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public abstract string ResolveRelativePath(string path);
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internal string MakeRelativePath(FileLocator fileLocator, string path)
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{
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if (!HasCommonRoot(fileLocator))
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{
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return null;
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}
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string ourFullPath = GetFullPath(string.Empty) + @"\";
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string otherFullPath = fileLocator.GetFullPath(path);
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return Utilities.MakeRelativePath(otherFullPath, ourFullPath);
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}
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}
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} |