Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/Configuration/FolderLevelBuildProvider.cs

@@ -0,0 +1,127 @@
+//------------------------------------------------------------------------------
+// <copyright file="FolderLevelBuildProvider.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.Configuration {
+    using System;
+    using System.Configuration;
+    using System.Globalization;
+    using System.Web.Compilation;
+    using System.Web.Util;
+
+    public sealed class FolderLevelBuildProvider : ConfigurationElement {
+        private static ConfigurationPropertyCollection _properties;
+        private static readonly ConfigurationProperty _propName =
+            new ConfigurationProperty("name",
+                                        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 Type _type;
+
+        // AppliesTo value from the FolderLevelBuildProviderAppliesToAttribute
+        private FolderLevelBuildProviderAppliesTo _appliesToInternal;
+
+        static FolderLevelBuildProvider() {
+            _properties = new ConfigurationPropertyCollection();
+            _properties.Add(_propName);
+            _properties.Add(_propType);
+        }
+
+        public FolderLevelBuildProvider(String name, String type)
+            : this() {
+            Name = name;
+            Type = type;
+        }
+        internal FolderLevelBuildProvider() {
+        }
+
+        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) {
+            FolderLevelBuildProvider o = provider as FolderLevelBuildProvider;
+            return (o != null && StringUtil.EqualsIgnoreCase(Name, o.Name) && Type == o.Type);
+        }
+        public override int GetHashCode() {
+            return HashCodeCombiner.CombineHashCodes(StringUtil.GetNonRandomizedHashCode(Name.ToLower(CultureInfo.InvariantCulture)),
+                                                     Type.GetHashCode());
+        }
+
+
+        [ConfigurationProperty("name", IsRequired = true, IsKey = true, DefaultValue = "")]
+        [StringValidator(MinLength = 1)]
+        public string Name {
+            get {
+                return (string)base[_propName];
+            }
+            set {
+                base[_propName] = value;
+            }
+        }
+
+        [ConfigurationProperty("type", IsRequired = true, DefaultValue = "")]
+        [StringValidator(MinLength = 1)]
+        public string Type {
+            get {
+                return (string)base[_propType];
+            }
+            set {
+                base[_propType] = value;
+            }
+        }
+
+        internal Type TypeInternal {
+            get {
+                if (_type == null) {
+                    lock (this) {
+                        if (_type == null) {
+                            _type = CompilationUtil.LoadTypeWithChecks(Type, typeof(System.Web.Compilation.BuildProvider), null, this, "type");
+                        }
+                    }
+                }
+
+                return _type;
+            }
+        }
+
+        internal FolderLevelBuildProviderAppliesTo AppliesToInternal {
+            get {
+                if (_appliesToInternal != 0)
+                    return _appliesToInternal;
+
+                // Check whether the control builder's class exposes an AppliesTo attribute
+                object[] attrs = TypeInternal.GetCustomAttributes(
+                    typeof(FolderLevelBuildProviderAppliesToAttribute), /*inherit*/ true);
+
+                if ((attrs != null) && (attrs.Length > 0)) {
+                    Debug.Assert(attrs[0] is FolderLevelBuildProviderAppliesToAttribute);
+                    _appliesToInternal = ((FolderLevelBuildProviderAppliesToAttribute)attrs[0]).AppliesTo;
+                }
+                else {
+                    // Default to applying to None
+                    _appliesToInternal = FolderLevelBuildProviderAppliesTo.None;
+                }
+
+                return _appliesToInternal;
+            }
+        }
+    }
+}