Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,149 @@
+//------------------------------------------------------------------------------
+// <copyright file="SqlCacheDependencyDatabase.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.Diagnostics;
+    using System.Security.Permissions;
+
+    // class SqlCacheDependencySection
+
+    public sealed class SqlCacheDependencyDatabase : ConfigurationElement {
+        private static readonly ConfigurationElementProperty s_elemProperty = new ConfigurationElementProperty(new CallbackValidator(typeof(SqlCacheDependencyDatabase), Validate));
+
+        private static ConfigurationPropertyCollection _properties;
+        private static readonly ConfigurationProperty _propName;
+        private static readonly ConfigurationProperty _propConnectionStringName;
+        private static readonly ConfigurationProperty _propPollTime;
+
+        static SqlCacheDependencyDatabase() {
+            // Property initialization
+            _properties = new ConfigurationPropertyCollection();
+
+            _propName =
+                new ConfigurationProperty("name",
+                                            typeof(string),
+                                            null,
+                                            null,
+                                            StdValidatorsAndConverters.NonEmptyStringValidator,
+                                            ConfigurationPropertyOptions.IsRequired | 
+                                            ConfigurationPropertyOptions.IsKey);
+            
+            _propConnectionStringName =
+                new ConfigurationProperty("connectionStringName",
+                                            typeof(string),
+                                            null,
+                                            null,
+                                            StdValidatorsAndConverters.NonEmptyStringValidator,
+                                            ConfigurationPropertyOptions.IsRequired);
+
+            _propPollTime = new ConfigurationProperty("pollTime", 
+                                            typeof(int), 
+                                            60000, 
+                                            ConfigurationPropertyOptions.None);
+
+            _properties.Add(_propName);
+            _properties.Add(_propConnectionStringName);
+            _properties.Add(_propPollTime);
+        }
+
+        private int defaultPollTime;    // This may be set by the outer node to specify the default poll time (i.e. not specified on this node)
+
+        public SqlCacheDependencyDatabase(string name, string connectionStringName, int pollTime) {
+            Name = name;
+            ConnectionStringName = connectionStringName;
+            PollTime = pollTime;
+        }
+
+        public SqlCacheDependencyDatabase(string name, string connectionStringName) {
+            Name = name;
+            ConnectionStringName = connectionStringName;
+        }
+
+        internal SqlCacheDependencyDatabase() {
+        }
+
+        protected override ConfigurationPropertyCollection Properties {
+            get {
+                return _properties;
+            }
+        }
+        protected override ConfigurationElementProperty ElementProperty {
+            get {
+                return s_elemProperty;
+            }
+        }
+        private static void Validate(object value) {
+            if (value == null) {
+                throw new ArgumentNullException("sqlCacheDependencyDatabase");
+            }
+            Debug.Assert(value is SqlCacheDependencyDatabase);
+
+            SqlCacheDependencyDatabase elem = (SqlCacheDependencyDatabase)value;
+
+            if (elem.PollTime != 0 && elem.PollTime < 500) {
+                throw new ConfigurationErrorsException(
+                    SR.GetString(SR.Invalid_sql_cache_dep_polltime),
+                    elem.ElementInformation.Properties["pollTime"].Source, 
+                    elem.ElementInformation.Properties["pollTime"].LineNumber);
+            }
+        }
+
+
+        internal void CheckDefaultPollTime(int value) {
+            // This method will be called by the outer node.
+            // If the poolTime property is not specified in the node, then grab the one
+            // from above.
+            if (ElementInformation.Properties["pollTime"].ValueOrigin == PropertyValueOrigin.Default) {
+                defaultPollTime = value;
+            }
+        }
+
+        [ConfigurationProperty("name", IsRequired = true, IsKey = true)]
+        [StringValidator(MinLength = 1)]
+        public string Name {
+            get {
+                return (string)base[_propName];
+            }
+            set {
+                base[_propName] = value;
+            }
+        }
+
+        [ConfigurationProperty("connectionStringName", IsRequired = true)]
+        [StringValidator(MinLength = 1)]
+        public string ConnectionStringName {
+            get {
+                return (string)base[_propConnectionStringName];
+            }
+            set {
+                base[_propConnectionStringName] = value;
+            }
+        }
+
+        [ConfigurationProperty("pollTime", DefaultValue = 60000)]
+        public int PollTime {
+            get {
+                if (ElementInformation.Properties["pollTime"].ValueOrigin == PropertyValueOrigin.Default) {
+                    return defaultPollTime;   // Return the default value from outer node
+                }
+                else {
+                    return (int)base[_propPollTime];
+                }
+            }
+            set {
+                base[_propPollTime] = value;
+            }
+        }
+    }
+}