OutputCacheSection.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / Configuration / OutputCacheSection.cs / 1305376 / OutputCacheSection.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

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.Security.Permissions; 
    using System.Web.Caching; 

    /*              
            
             
 */
    public sealed class OutputCacheSection : ConfigurationSection {
        internal const bool DefaultOmitVaryStar = false;
 
        private static ConfigurationPropertyCollection _properties;
        private static readonly ConfigurationProperty _propEnableOutputCache = 
            new ConfigurationProperty("enableOutputCache", 
                                        typeof(bool),
                                        true, 
                                        ConfigurationPropertyOptions.None);
        private static readonly ConfigurationProperty _propEnableFragmentCache =
            new ConfigurationProperty("enableFragmentCache",
                                        typeof(bool), 
                                        true,
                                        ConfigurationPropertyOptions.None); 
        private static readonly ConfigurationProperty _propSendCacheControlHeader = 
            new ConfigurationProperty("sendCacheControlHeader",
                                        typeof(bool), 
                                        HttpRuntimeSection.DefaultSendCacheControlHeader,
                                        ConfigurationPropertyOptions.None);
        private static readonly ConfigurationProperty _propOmitVaryStar =
            new ConfigurationProperty("omitVaryStar", 
                                        typeof(bool),
                                        DefaultOmitVaryStar, 
                                        ConfigurationPropertyOptions.None); 

        private static readonly ConfigurationProperty _propEnableKernelCacheForVaryByStar = 
            new ConfigurationProperty("enableKernelCacheForVaryByStar",
                                        typeof(bool),
                                        false,
                                        ConfigurationPropertyOptions.None); 

        private static readonly ConfigurationProperty _propDefaultProviderName = 
            new ConfigurationProperty("defaultProvider", 
                                      typeof(String),
                                      OutputCache.ASPNET_INTERNAL_PROVIDER_NAME, //defaultValue 
                                      null,
                                      StdValidatorsAndConverters.NonEmptyStringValidator,
                                      ConfigurationPropertyOptions.None);
 
        private static readonly ConfigurationProperty _propProviders =
            new ConfigurationProperty("providers", 
                                      typeof(ProviderSettingsCollection), 
                                      null, // defaultValue
                                      ConfigurationPropertyOptions.None); 


        private bool sendCacheControlHeaderCached = false;
        private bool sendCacheControlHeaderCache; 
        private bool omitVaryStarCached = false;
        private bool omitVaryStar; 
        private bool enableKernelCacheForVaryByStarCached = false; 
        private bool enableKernelCacheForVaryByStar;
        private bool enableOutputCacheCached = false; 
        private bool enableOutputCache;

        static OutputCacheSection() {
            // Property initialization 
            _properties = new ConfigurationPropertyCollection();
 
            _properties.Add(_propEnableOutputCache); 
            _properties.Add(_propEnableFragmentCache);
            _properties.Add(_propSendCacheControlHeader); 
            _properties.Add(_propOmitVaryStar);
            _properties.Add(_propEnableKernelCacheForVaryByStar);
            _properties.Add(_propDefaultProviderName);
            _properties.Add(_propProviders); 
        }
 
        public OutputCacheSection() { 
        }
 
        protected override ConfigurationPropertyCollection Properties {
            get {
                return _properties;
            } 
        }
 
        [ConfigurationProperty("enableOutputCache", DefaultValue = true)] 
        public bool EnableOutputCache {
            get { 
                if (enableOutputCacheCached == false) {
                    enableOutputCache = (bool)base[_propEnableOutputCache];
                    enableOutputCacheCached = true;
                } 

                return enableOutputCache; 
            } 
            set {
                base[_propEnableOutputCache] = value; 
                enableOutputCache = value;
            }
        }
 
        [ConfigurationProperty("enableFragmentCache", DefaultValue = true)]
        public bool EnableFragmentCache { 
            get { 
                return (bool)base[_propEnableFragmentCache];
            } 
            set {
                base[_propEnableFragmentCache] = value;
            }
        } 

        [ConfigurationProperty("sendCacheControlHeader", DefaultValue = HttpRuntimeSection.DefaultSendCacheControlHeader)] 
        public bool SendCacheControlHeader { 
            get {
                if (sendCacheControlHeaderCached == false) { 
                    sendCacheControlHeaderCache = (bool)base[_propSendCacheControlHeader];
                    sendCacheControlHeaderCached = true;
                }
                return sendCacheControlHeaderCache; 
            }
            set { 
                base[_propSendCacheControlHeader] = value; 
                sendCacheControlHeaderCache = value;
            } 
        }

        [ConfigurationProperty("omitVaryStar", DefaultValue = DefaultOmitVaryStar)]
        public bool OmitVaryStar { 
            get {
                if (omitVaryStarCached == false) { 
                    omitVaryStar = (bool)base[_propOmitVaryStar]; 
                    omitVaryStarCached = true;
                } 
                return omitVaryStar;
            }
            set {
                base[_propOmitVaryStar] = value; 
                omitVaryStar = value;
            } 
        } 

        [ConfigurationProperty("enableKernelCacheForVaryByStar", DefaultValue = false)] 
        public bool EnableKernelCacheForVaryByStar {
            get {
                if (enableKernelCacheForVaryByStarCached == false) {
                    enableKernelCacheForVaryByStar = (bool)base[_propEnableKernelCacheForVaryByStar]; 
                    enableKernelCacheForVaryByStarCached = true;
                } 
                return enableKernelCacheForVaryByStar; 
            }
            set { 
                base[_propEnableKernelCacheForVaryByStar] = value;
                enableKernelCacheForVaryByStar = value;
            }
        } 

        [ConfigurationProperty("defaultProvider", DefaultValue = OutputCache.ASPNET_INTERNAL_PROVIDER_NAME)] 
        [StringValidator(MinLength = 1)] 
        public String DefaultProviderName {
            get { 
                return (string) base[_propDefaultProviderName];
            }
            set {
                base[_propDefaultProviderName] = value; 
            }
        } 
 
        [ConfigurationProperty("providers")]
        public ProviderSettingsCollection Providers { 
            get {
                return (ProviderSettingsCollection)base[_propProviders];
            }
        } 

        [PermissionSet(SecurityAction.Assert, Unrestricted = true)] 
        internal OutputCacheProviderCollection CreateProviderCollection() { 
            // if there are no providers defined, we'll default to the v2.0 OutputCache
            ProviderSettingsCollection providers = Providers; 
            if (providers == null || providers.Count == 0) {
                return null;
            }
            OutputCacheProviderCollection collection = new OutputCacheProviderCollection(); 
            ProvidersHelper.InstantiateProviders(providers, collection, typeof(OutputCacheProvider));
            collection.SetReadOnly(); 
            return collection; 
        }
 
        internal OutputCacheProvider GetDefaultProvider(OutputCacheProviderCollection providers) {
            // if defaultProvider is undefined, we'll default to the v2.0 OutputCache
            string defaultProviderName = DefaultProviderName;
            if (defaultProviderName == OutputCache.ASPNET_INTERNAL_PROVIDER_NAME) { 
                return null;
            } 
 
            // if the defaultProvider is defined, it must be in the providers collection
            OutputCacheProvider defaultProvider = (providers == null) ? null : providers[defaultProviderName]; 
            if (defaultProvider == null) {
                throw new ConfigurationErrorsException(SR.GetString(SR.Def_provider_not_found),
                                                       ElementInformation.Properties["defaultProvider"].Source,
                                                       ElementInformation.Properties["defaultProvider"].LineNumber); 
            }
            return defaultProvider; 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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OutputCacheSection.cs source code in C# .NET

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