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//------------------------------------------------------------------------------
// <copyright file="BuildProvider.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.Configuration {
using System;
using System.Xml;
using System.Configuration;
using System.Collections.Specialized;
using System.Collections;
using System.Globalization;
using System.IO;
using System.Text;
using System.Web.Compilation;
using System.Reflection;
using System.Web.Hosting;
using System.Web.UI;
using System.CodeDom.Compiler;
using System.Web.Util;
using System.ComponentModel;
using System.Security.Permissions;
public sealed class BuildProvider : ConfigurationElement {
private static ConfigurationPropertyCollection _properties;
private static readonly ConfigurationProperty _propExtension =
new ConfigurationProperty("extension",
typeof(string),
null,
null,
StdValidatorsAndConverters.NonEmptyStringValidator,
ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey);
private static readonly ConfigurationProperty _propType =
new ConfigurationProperty("type",
typeof(string),
null,
null,
StdValidatorsAndConverters.NonEmptyStringValidator,
ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsTypeStringTransformationRequired);
private readonly BuildProviderInfo _info;
static BuildProvider() {
_properties = new ConfigurationPropertyCollection();
_properties.Add(_propExtension);
_properties.Add(_propType);
}
public BuildProvider(String extension, String type)
: this() {
Extension = extension;
Type = type;
}
internal BuildProvider() {
_info = new ConfigurationBuildProviderInfo(this);
}
protected override ConfigurationPropertyCollection Properties {
get {
return _properties;
}
}
// this override is required because AppliesTo may be in any order in the
// property string but it still and the default equals operator would consider
// them different depending on order in the persisted string.
public override bool Equals(object provider) {
BuildProvider o = provider as BuildProvider;
return (o != null && StringUtil.EqualsIgnoreCase(Extension, o.Extension) && Type == o.Type);
}
public override int GetHashCode() {
return HashCodeCombiner.CombineHashCodes(StringUtil.GetNonRandomizedHashCode(Extension.ToLower(CultureInfo.InvariantCulture)),
Type.GetHashCode());
}
[ConfigurationProperty("extension", IsRequired = true, IsKey = true, DefaultValue = "")]
[StringValidator(MinLength = 1)]
public string Extension {
get {
return (string)base[_propExtension];
}
set {
base[_propExtension] = value;
}
}
[ConfigurationProperty("type", IsRequired = true, DefaultValue = "")]
[StringValidator(MinLength = 1)]
public string Type {
get {
return (string)base[_propType];
}
set {
base[_propType] = value;
}
}
internal BuildProviderInfo BuildProviderInfo {
get {
Debug.Assert(_info != null);
return _info;
}
}
private class ConfigurationBuildProviderInfo : BuildProviderInfo {
private readonly BuildProvider _buildProvider;
object _lock = new object();
private Type _type;
public ConfigurationBuildProviderInfo(BuildProvider buildProvider) {
Debug.Assert(buildProvider != null);
_buildProvider = buildProvider;
}
internal override Type Type {
get {
if (_type == null) {
lock (_lock) {
if (_type == null) {
_type = CompilationUtil.LoadTypeWithChecks(_buildProvider.Type, typeof(System.Web.Compilation.BuildProvider), null, _buildProvider, "type");
}
}
}
return _type;
}
}
}
}
}
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