114 lines
3.6 KiB
C#
114 lines
3.6 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="PreservationFileReader.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.Compilation {
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using System;
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using System.IO;
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using System.Collections;
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using System.Globalization;
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using System.Text;
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using System.Xml;
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using System.Web.Util;
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using System.Web.UI;
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internal class PreservationFileWriter {
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private XmlTextWriter _writer;
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private bool _precompilationMode;
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internal const string fileDependenciesTagName = "filedeps";
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internal const string fileDependencyTagName = "filedep";
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internal const string buildResultDependenciesTagName = "builddeps";
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internal const string buildResultDependencyTagName = "builddep";
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internal PreservationFileWriter(bool precompilationMode) {
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_precompilationMode = precompilationMode;
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}
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internal void SaveBuildResultToFile(string preservationFile,
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BuildResult result, long hashCode) {
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_writer = new XmlTextWriter(preservationFile, Encoding.UTF8);
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try {
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_writer.Formatting = Formatting.Indented;
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_writer.Indentation = 4;
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_writer.WriteStartDocument();
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// <preserve assem="assemblyFile">
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_writer.WriteStartElement("preserve");
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// Save the type of BuildResult we're dealing with
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Debug.Assert(result.GetCode() != BuildResultTypeCode.Invalid);
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SetAttribute("resultType", ((int)result.GetCode()).ToString(CultureInfo.InvariantCulture));
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// Save the virtual path for this BuildResult
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if (result.VirtualPath != null)
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SetAttribute("virtualPath", result.VirtualPath.VirtualPathString);
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// Get the hash code of the BuildResult
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long hash = result.ComputeHashCode(hashCode);
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// The hash should always be valid if we got here.
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Debug.Assert(hash != 0, "hash != 0");
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// Save it to the preservation file
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SetAttribute("hash", hash.ToString("x", CultureInfo.InvariantCulture));
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// Can be null if that's what the VirtualPathProvider returns
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string fileHash = result.VirtualPathDependenciesHash;
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if (fileHash != null)
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SetAttribute("filehash", fileHash);
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result.SetPreservedAttributes(this);
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SaveDependencies(result.VirtualPathDependencies);
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// </preserve>
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_writer.WriteEndElement();
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_writer.WriteEndDocument();
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_writer.Close();
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}
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catch {
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// If an exception occurs during the writing of the xml file, clean it up
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_writer.Close();
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File.Delete(preservationFile);
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throw;
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}
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}
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private void SaveDependencies(ICollection dependencies) {
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// Write all the dependencies
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if (dependencies != null) {
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// <filedeps>
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_writer.WriteStartElement(fileDependenciesTagName);
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foreach (string vpath in dependencies) {
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// e.g. <filedep name="/testapp/foo.aspx" />
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_writer.WriteStartElement(fileDependencyTagName);
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_writer.WriteAttributeString("name", vpath);
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_writer.WriteEndElement();
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}
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// </filedeps>
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_writer.WriteEndElement();
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}
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}
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internal void SetAttribute(string name, string value) {
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_writer.WriteAttributeString(name, value);
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}
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}
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}
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