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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.BootstrapperApplicationApi
{
using System;
using System.Collections.Generic;
using System.Xml;
using System.Xml.XPath;
/// <summary>
/// Default implementation of <see cref="IOverridableVariables"/>.
/// </summary>
public class OverridableVariablesInfo : IOverridableVariables
{
/// <inheritdoc />
public VariableCommandLineType CommandLineType { get; internal set; }
/// <inheritdoc />
public IDictionary<string, IOverridableVariableInfo> Variables { get; internal set; }
internal OverridableVariablesInfo() { }
/// <summary>
/// Parses the overridable variable info from the BA manifest.
/// </summary>
/// <param name="root">XML root</param>
/// <returns>The parsed information.</returns>
public static IOverridableVariables ParseFromXml(XPathNavigator root)
{
XmlNamespaceManager namespaceManager = new XmlNamespaceManager(root.NameTable);
namespaceManager.AddNamespace("p", BootstrapperApplicationData.XMLNamespace);
XPathNavigator commandLineNode = root.SelectSingleNode("/p:BootstrapperApplicationData/p:WixStdbaCommandLine", namespaceManager);
XPathNodeIterator nodes = root.Select("/p:BootstrapperApplicationData/p:WixStdbaOverridableVariable", namespaceManager);
var overridableVariables = new OverridableVariablesInfo();
IEqualityComparer<string> variableNameComparer;
if (commandLineNode == null)
{
overridableVariables.CommandLineType = VariableCommandLineType.CaseSensitive;
variableNameComparer = StringComparer.InvariantCulture;
}
else
{
string variablesValue = BootstrapperApplicationData.GetAttribute(commandLineNode, "VariableType");
if (variablesValue == null)
{
throw new Exception("Failed to get command line variable type.");
}
if (variablesValue.Equals("caseInsensitive", StringComparison.InvariantCulture))
{
overridableVariables.CommandLineType = VariableCommandLineType.CaseInsensitive;
variableNameComparer = StringComparer.InvariantCultureIgnoreCase;
}
else if (variablesValue.Equals("caseSensitive", StringComparison.InvariantCulture))
{
overridableVariables.CommandLineType = VariableCommandLineType.CaseSensitive;
variableNameComparer = StringComparer.InvariantCulture;
}
else
{
throw new Exception(String.Format("Unknown command line variable type: '{0}'", variablesValue));
}
}
overridableVariables.Variables = new Dictionary<string, IOverridableVariableInfo>(variableNameComparer);
foreach (XPathNavigator node in nodes)
{
var variable = new OverridableVariableInfo();
string name = BootstrapperApplicationData.GetAttribute(node, "Name");
if (name == null)
{
throw new Exception("Failed to get name for overridable variable.");
}
variable.Name = name;
overridableVariables.Variables.Add(variable.Name, variable);
}
return overridableVariables;
}
}
}
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