121 lines
4.1 KiB
C#
121 lines
4.1 KiB
C#
namespace System.Web.Mvc {
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using System;
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using System.Diagnostics.CodeAnalysis;
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using System.Globalization;
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using System.Web.Mvc.Async;
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using System.Web.Mvc.Resources;
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using System.Web.Routing;
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using System.Web.WebPages;
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using System.Web.WebPages.Scope;
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public abstract class ControllerBase : IController {
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private readonly SingleEntryGate _executeWasCalledGate = new SingleEntryGate();
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private DynamicViewDataDictionary _dynamicViewDataDictionary;
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private TempDataDictionary _tempDataDictionary;
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private bool _validateRequest = true;
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private IValueProvider _valueProvider;
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private ViewDataDictionary _viewDataDictionary;
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public ControllerContext ControllerContext {
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get;
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set;
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}
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[SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly", Justification = "This property is settable so that unit tests can provide mock implementations.")]
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public TempDataDictionary TempData {
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get {
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if (ControllerContext != null && ControllerContext.IsChildAction) {
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return ControllerContext.ParentActionViewContext.TempData;
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}
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if (_tempDataDictionary == null) {
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_tempDataDictionary = new TempDataDictionary();
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}
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return _tempDataDictionary;
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}
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set {
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_tempDataDictionary = value;
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}
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}
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public bool ValidateRequest {
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get {
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return _validateRequest;
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}
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set {
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_validateRequest = value;
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}
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}
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public IValueProvider ValueProvider {
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get {
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if (_valueProvider == null) {
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_valueProvider = ValueProviderFactories.Factories.GetValueProvider(ControllerContext);
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}
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return _valueProvider;
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}
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set {
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_valueProvider = value;
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}
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}
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public dynamic ViewBag {
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get {
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if (_dynamicViewDataDictionary == null) {
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_dynamicViewDataDictionary = new DynamicViewDataDictionary(() => ViewData);
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}
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return _dynamicViewDataDictionary;
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}
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}
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[SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly", Justification = "This property is settable so that unit tests can provide mock implementations.")]
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public ViewDataDictionary ViewData {
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get {
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if (_viewDataDictionary == null) {
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_viewDataDictionary = new ViewDataDictionary();
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}
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return _viewDataDictionary;
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}
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set {
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_viewDataDictionary = value;
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}
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}
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protected virtual void Execute(RequestContext requestContext) {
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if (requestContext == null) {
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throw new ArgumentNullException("requestContext");
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}
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if (requestContext.HttpContext == null) {
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throw new ArgumentException(MvcResources.ControllerBase_CannotExecuteWithNullHttpContext, "requestContext");
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}
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VerifyExecuteCalledOnce();
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Initialize(requestContext);
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using (ScopeStorage.CreateTransientScope()) {
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ExecuteCore();
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}
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}
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protected abstract void ExecuteCore();
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protected virtual void Initialize(RequestContext requestContext) {
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ControllerContext = new ControllerContext(requestContext, this);
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}
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internal void VerifyExecuteCalledOnce() {
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if (!_executeWasCalledGate.TryEnter()) {
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string message = String.Format(CultureInfo.CurrentCulture, MvcResources.ControllerBase_CannotHandleMultipleRequests, GetType());
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throw new InvalidOperationException(message);
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}
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}
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#region IController Members
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void IController.Execute(RequestContext requestContext) {
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Execute(requestContext);
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}
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#endregion
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}
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}
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