Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Configuration / System / Configuration / ConfigurationManager.cs / 1 / ConfigurationManager.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Configuration { using System.Collections; using System.Collections.Specialized; using System.Globalization; using System.Configuration.Internal; using System.IO; using System.Security.Permissions; using System.Threading; public static class ConfigurationManager { // The Configuration System private static IInternalConfigSystem s_configSystem; // Initialization state private static InitState s_initState; private static object s_initLock; private static Exception s_initError; private enum InitState { // Initialization has not yet started. NotStarted = 0, // Initialization has started. Started, // The config system can be used, but initialization is not yet complete. Usable, // The config system has been completely initialized. Completed }; static ConfigurationManager() { s_initState = InitState.NotStarted; s_initLock = new object(); } // to be used by System.Diagnostics to avoid false config results during config init internal static bool SetConfigurationSystemInProgress { get { return InitState.NotStarted < s_initState && s_initState < InitState.Completed; } } // Called by ASP.NET to allow hierarchical configuration settings and ASP.NET specific extenstions. internal static void SetConfigurationSystem(IInternalConfigSystem configSystem, bool initComplete) { lock (s_initLock) { // It is an error if the configuration system has already been set. if (s_initState != InitState.NotStarted) { throw new InvalidOperationException(SR.GetString(SR.Config_system_already_set)); } s_configSystem = configSystem; if (initComplete) { s_initState = InitState.Completed; } else { s_initState = InitState.Usable; } } } private static void EnsureConfigurationSystem() { // If a configuration system has not yet been set, // create the DefaultConfigurationSystem for exe's. lock (s_initLock) { if (s_initState < InitState.Usable) { s_initState = InitState.Started; try { try { // Create the system, but let it initialize itself // when GetConfig is called, so that it can handle its // own re-entrancy issues during initialization. // When initialization is complete, the DefaultConfigurationSystem // will call CompleteConfigInit to mark initialization as // having completed. // Note: the ClientConfigurationSystem has a 2-stage initialization, // and that's why s_initState isn't set to InitState.Completed yet. s_configSystem = new ClientConfigurationSystem(); s_initState = InitState.Usable; } catch (Exception e) { s_initError = new ConfigurationErrorsException(SR.GetString(SR.Config_client_config_init_error), e); throw s_initError; } catch { s_initError = new ConfigurationErrorsException(SR.GetString(SR.Config_client_config_init_error)); throw s_initError; } } catch { s_initState = InitState.Completed; throw; } } } } // Set the initialization error. internal static void SetInitError(Exception initError) { s_initError = initError; } // Mark intiailization as having completed. internal static void CompleteConfigInit() { lock (s_initLock) { s_initState = InitState.Completed; } } private static void PrepareConfigSystem() { // Ensure the configuration system is usable. if (s_initState < InitState.Usable) { EnsureConfigurationSystem(); } // If there was an initialization error, throw it. if (s_initError != null) { throw s_initError; } } internal static bool SupportsUserConfig { get { PrepareConfigSystem(); return s_configSystem.SupportsUserConfig; } } // // ************************************************* // ** Static Runtime Functions to retrieve config ** // ************************************************* // public static NameValueCollection AppSettings { get { object section = GetSection("appSettings"); if (section == null || !(section is NameValueCollection)) { // If config is null or not the type we expect, the declaration was changed. // Treat it as a configuration error. throw new ConfigurationErrorsException(SR.GetString(SR.Config_appsettings_declaration_invalid)); } return (NameValueCollection) section; } } public static ConnectionStringSettingsCollection ConnectionStrings { get { object section = GetSection("connectionStrings"); // Verify type, and return the collection if (section == null || section.GetType() != typeof(ConnectionStringsSection)) { // If config is null or not the type we expect, the declaration was changed. // Treat it as a configuration error. throw new ConfigurationErrorsException(SR.GetString(SR.Config_connectionstrings_declaration_invalid)); } ConnectionStringsSection connectionStringsSection = (ConnectionStringsSection) section; return connectionStringsSection.ConnectionStrings; } } // GetSection // // Retrieve a Section from the configuration system // public static object GetSection(string sectionName) { // Avoid unintended AV's by ensuring sectionName is not empty. // For compatibility, we cannot throw an InvalidArgumentException. if (String.IsNullOrEmpty(sectionName)) { return null; } PrepareConfigSystem(); object section = s_configSystem.GetSection(sectionName); return section; } public static void RefreshSection(string sectionName) { // Avoid unintended AV's by ensuring sectionName is not empty. // For consistency with GetSection, we should not throw an InvalidArgumentException. if (String.IsNullOrEmpty(sectionName)) { return; } PrepareConfigSystem(); s_configSystem.RefreshConfig(sectionName); } // // ************************************************* // ** Static Management Functions to edit config ** // ************************************************* // // // OpenMachineConfiguration // public static Configuration OpenMachineConfiguration() { return OpenExeConfigurationImpl(null, true, ConfigurationUserLevel.None, null); } public static Configuration OpenMappedMachineConfiguration(ConfigurationFileMap fileMap) { return OpenExeConfigurationImpl(fileMap, true, ConfigurationUserLevel.None, null); } // // OpenExeConfiguration // public static Configuration OpenExeConfiguration(ConfigurationUserLevel userLevel) { return OpenExeConfigurationImpl(null, false, userLevel, null); } public static Configuration OpenExeConfiguration(string exePath) { return OpenExeConfigurationImpl(null, false, ConfigurationUserLevel.None, exePath); } public static Configuration OpenMappedExeConfiguration(ExeConfigurationFileMap fileMap, ConfigurationUserLevel userLevel) { return OpenExeConfigurationImpl(fileMap, false, userLevel, null); } private static Configuration OpenExeConfigurationImpl(ConfigurationFileMap fileMap, bool isMachine, ConfigurationUserLevel userLevel, string exePath) { // exePath must be specified if not running inside ClientConfigurationSystem if ( !isMachine && ( ( ( fileMap == null ) && ( exePath == null ) ) || ( ( fileMap != null ) && ( ( ( ExeConfigurationFileMap ) fileMap ).ExeConfigFilename == null ) ) ) ) { if ( ( s_configSystem != null ) && ( s_configSystem.GetType() != typeof( ClientConfigurationSystem ) ) ) { throw new ArgumentException(SR.GetString(SR.Config_configmanager_open_noexe)); } } return ClientConfigurationHost.OpenExeConfiguration(fileMap, isMachine, userLevel, exePath); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Configuration { using System.Collections; using System.Collections.Specialized; using System.Globalization; using System.Configuration.Internal; using System.IO; using System.Security.Permissions; using System.Threading; public static class ConfigurationManager { // The Configuration System private static IInternalConfigSystem s_configSystem; // Initialization state private static InitState s_initState; private static object s_initLock; private static Exception s_initError; private enum InitState { // Initialization has not yet started. NotStarted = 0, // Initialization has started. Started, // The config system can be used, but initialization is not yet complete. Usable, // The config system has been completely initialized. Completed }; static ConfigurationManager() { s_initState = InitState.NotStarted; s_initLock = new object(); } // to be used by System.Diagnostics to avoid false config results during config init internal static bool SetConfigurationSystemInProgress { get { return InitState.NotStarted < s_initState && s_initState < InitState.Completed; } } // Called by ASP.NET to allow hierarchical configuration settings and ASP.NET specific extenstions. internal static void SetConfigurationSystem(IInternalConfigSystem configSystem, bool initComplete) { lock (s_initLock) { // It is an error if the configuration system has already been set. if (s_initState != InitState.NotStarted) { throw new InvalidOperationException(SR.GetString(SR.Config_system_already_set)); } s_configSystem = configSystem; if (initComplete) { s_initState = InitState.Completed; } else { s_initState = InitState.Usable; } } } private static void EnsureConfigurationSystem() { // If a configuration system has not yet been set, // create the DefaultConfigurationSystem for exe's. lock (s_initLock) { if (s_initState < InitState.Usable) { s_initState = InitState.Started; try { try { // Create the system, but let it initialize itself // when GetConfig is called, so that it can handle its // own re-entrancy issues during initialization. // When initialization is complete, the DefaultConfigurationSystem // will call CompleteConfigInit to mark initialization as // having completed. // Note: the ClientConfigurationSystem has a 2-stage initialization, // and that's why s_initState isn't set to InitState.Completed yet. s_configSystem = new ClientConfigurationSystem(); s_initState = InitState.Usable; } catch (Exception e) { s_initError = new ConfigurationErrorsException(SR.GetString(SR.Config_client_config_init_error), e); throw s_initError; } catch { s_initError = new ConfigurationErrorsException(SR.GetString(SR.Config_client_config_init_error)); throw s_initError; } } catch { s_initState = InitState.Completed; throw; } } } } // Set the initialization error. internal static void SetInitError(Exception initError) { s_initError = initError; } // Mark intiailization as having completed. internal static void CompleteConfigInit() { lock (s_initLock) { s_initState = InitState.Completed; } } private static void PrepareConfigSystem() { // Ensure the configuration system is usable. if (s_initState < InitState.Usable) { EnsureConfigurationSystem(); } // If there was an initialization error, throw it. if (s_initError != null) { throw s_initError; } } internal static bool SupportsUserConfig { get { PrepareConfigSystem(); return s_configSystem.SupportsUserConfig; } } // // ************************************************* // ** Static Runtime Functions to retrieve config ** // ************************************************* // public static NameValueCollection AppSettings { get { object section = GetSection("appSettings"); if (section == null || !(section is NameValueCollection)) { // If config is null or not the type we expect, the declaration was changed. // Treat it as a configuration error. throw new ConfigurationErrorsException(SR.GetString(SR.Config_appsettings_declaration_invalid)); } return (NameValueCollection) section; } } public static ConnectionStringSettingsCollection ConnectionStrings { get { object section = GetSection("connectionStrings"); // Verify type, and return the collection if (section == null || section.GetType() != typeof(ConnectionStringsSection)) { // If config is null or not the type we expect, the declaration was changed. // Treat it as a configuration error. throw new ConfigurationErrorsException(SR.GetString(SR.Config_connectionstrings_declaration_invalid)); } ConnectionStringsSection connectionStringsSection = (ConnectionStringsSection) section; return connectionStringsSection.ConnectionStrings; } } // GetSection // // Retrieve a Section from the configuration system // public static object GetSection(string sectionName) { // Avoid unintended AV's by ensuring sectionName is not empty. // For compatibility, we cannot throw an InvalidArgumentException. if (String.IsNullOrEmpty(sectionName)) { return null; } PrepareConfigSystem(); object section = s_configSystem.GetSection(sectionName); return section; } public static void RefreshSection(string sectionName) { // Avoid unintended AV's by ensuring sectionName is not empty. // For consistency with GetSection, we should not throw an InvalidArgumentException. if (String.IsNullOrEmpty(sectionName)) { return; } PrepareConfigSystem(); s_configSystem.RefreshConfig(sectionName); } // // ************************************************* // ** Static Management Functions to edit config ** // ************************************************* // // // OpenMachineConfiguration // public static Configuration OpenMachineConfiguration() { return OpenExeConfigurationImpl(null, true, ConfigurationUserLevel.None, null); } public static Configuration OpenMappedMachineConfiguration(ConfigurationFileMap fileMap) { return OpenExeConfigurationImpl(fileMap, true, ConfigurationUserLevel.None, null); } // // OpenExeConfiguration // public static Configuration OpenExeConfiguration(ConfigurationUserLevel userLevel) { return OpenExeConfigurationImpl(null, false, userLevel, null); } public static Configuration OpenExeConfiguration(string exePath) { return OpenExeConfigurationImpl(null, false, ConfigurationUserLevel.None, exePath); } public static Configuration OpenMappedExeConfiguration(ExeConfigurationFileMap fileMap, ConfigurationUserLevel userLevel) { return OpenExeConfigurationImpl(fileMap, false, userLevel, null); } private static Configuration OpenExeConfigurationImpl(ConfigurationFileMap fileMap, bool isMachine, ConfigurationUserLevel userLevel, string exePath) { // exePath must be specified if not running inside ClientConfigurationSystem if ( !isMachine && ( ( ( fileMap == null ) && ( exePath == null ) ) || ( ( fileMap != null ) && ( ( ( ExeConfigurationFileMap ) fileMap ).ExeConfigFilename == null ) ) ) ) { if ( ( s_configSystem != null ) && ( s_configSystem.GetType() != typeof( ClientConfigurationSystem ) ) ) { throw new ArgumentException(SR.GetString(SR.Config_configmanager_open_noexe)); } } return ClientConfigurationHost.OpenExeConfiguration(fileMap, isMachine, userLevel, exePath); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- GetIndexBinder.cs
- SoapIncludeAttribute.cs
- SqlFunctionAttribute.cs
- XmlSchemaAny.cs
- __FastResourceComparer.cs
- GregorianCalendar.cs
- ExecutorLocksHeldException.cs
- ViewCellRelation.cs
- StateMachine.cs
- MemberCollection.cs
- AssociationSetMetadata.cs
- XmlReader.cs
- DataGridTextBox.cs
- Canvas.cs
- SymLanguageVendor.cs
- Registration.cs
- ProfilePropertySettingsCollection.cs
- MenuBindingsEditorForm.cs
- SHA1Managed.cs
- HostSecurityManager.cs
- ObjectNotFoundException.cs
- PathFigureCollectionConverter.cs
- EntityObject.cs
- ConsoleCancelEventArgs.cs
- safelinkcollection.cs
- CodeLabeledStatement.cs
- TitleStyle.cs
- BasicHttpMessageSecurityElement.cs
- OleDbTransaction.cs
- ParentQuery.cs
- XPathChildIterator.cs
- TextPattern.cs
- WebPartEditorCancelVerb.cs
- xsdvalidator.cs
- DataGridViewSelectedRowCollection.cs
- ReferenceSchema.cs
- COAUTHIDENTITY.cs
- CustomAttributeSerializer.cs
- RSAPKCS1KeyExchangeDeformatter.cs
- HtmlTableCell.cs
- XmlLanguageConverter.cs
- TableProviderWrapper.cs
- AutomationEventArgs.cs
- HttpModuleActionCollection.cs
- NumericExpr.cs
- DoubleLinkListEnumerator.cs
- DictionaryEditChange.cs
- Mutex.cs
- dtdvalidator.cs
- ForwardPositionQuery.cs
- ExternalException.cs
- RegisteredHiddenField.cs
- SqlTrackingWorkflowInstance.cs
- SHA1CryptoServiceProvider.cs
- AnonymousIdentificationModule.cs
- TextServicesCompartment.cs
- PrintPreviewDialog.cs
- WeakRefEnumerator.cs
- RSAPKCS1KeyExchangeFormatter.cs
- ClosableStream.cs
- ProcessModelSection.cs
- ActivityDesigner.cs
- TextCompositionEventArgs.cs
- CharStorage.cs
- EdgeProfileValidation.cs
- DataGridViewCellContextMenuStripNeededEventArgs.cs
- KoreanLunisolarCalendar.cs
- ControlBuilderAttribute.cs
- StringFreezingAttribute.cs
- TablePattern.cs
- SectionInput.cs
- Splitter.cs
- TypedMessageConverter.cs
- ExtenderProvidedPropertyAttribute.cs
- ConstraintCollection.cs
- ResourceIDHelper.cs
- RegexGroupCollection.cs
- SecureEnvironment.cs
- SigningProgress.cs
- EntityReference.cs
- validationstate.cs
- TreeWalkHelper.cs
- ControlDesigner.cs
- DynamicUpdateCommand.cs
- ServiceOperation.cs
- HandlerBase.cs
- HttpAsyncResult.cs
- FileStream.cs
- SafeUserTokenHandle.cs
- FontFamilyIdentifier.cs
- FragmentNavigationEventArgs.cs
- BoundColumn.cs
- FixedPosition.cs
- MimeTypeAttribute.cs
- ReceiveContextCollection.cs
- SoapElementAttribute.cs
- RegexRunnerFactory.cs
- Compress.cs
- StatusBar.cs
- OutputScope.cs