Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataWeb / Server / System / Data / Services / Providers / ServiceOperationWrapper.cs / 1305376 / ServiceOperationWrapper.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // //// Wrapper class for ServiceOperation so we can store service // specific data here. // // // @owner [....] //--------------------------------------------------------------------- namespace System.Data.Services.Providers { using System; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Diagnostics; ///Use this class to represent a custom service operation. [DebuggerVisualizer("ServiceOperation={Name}")] internal sealed class ServiceOperationWrapper { #region Private Fields ////// Wrapped instance of the service operation. /// private readonly ServiceOperation serviceOperation; ///Access rights to this service operation. private ServiceOperationRights rights; ///Entity set from which entities are read, if applicable. private ResourceSetWrapper resourceSet; #if DEBUG ///Is true, if the service operation is fully initialized and validated. No more changes can be made once its set to readonly. private bool isReadOnly; #endif #endregion Private Fields #region Constructor ////// Initializes a new /// ServiceOperation instance to be wrapped. public ServiceOperationWrapper(ServiceOperation serviceOperation) { Debug.Assert(serviceOperation != null, "serviceOperation != null"); if (!serviceOperation.IsReadOnly) { throw new DataServiceException(500, Strings.DataServiceProviderWrapper_ServiceOperationNotReadonly(serviceOperation.Name)); } this.serviceOperation = serviceOperation; } #endregion Constructor #region Properties ///instance. /// Protocol (for example HTTP) method the service operation responds to. public string Method { [DebuggerStepThrough] get { return this.serviceOperation.Method; } } ///MIME type specified on primitive results, possibly null. public string MimeType { [DebuggerStepThrough] get { return this.serviceOperation.MimeType; } } ///Name of the service operation. public string Name { [DebuggerStepThrough] get { return this.serviceOperation.Name; } } ///Returns all the parameters for the given service operations./// public ReadOnlyCollectionParameters { [DebuggerStepThrough] get { return this.serviceOperation.Parameters; } } /// Kind of result expected from this operation. public ServiceOperationResultKind ResultKind { [DebuggerStepThrough] get { return this.serviceOperation.ResultKind; } } ///Element of result type. ////// Note that if the method returns an IEnumerable<string>, /// this property will be typeof(string). /// public ResourceType ResultType { [DebuggerStepThrough] get { return this.serviceOperation.ResultType; } } ////// Gets the wrapped service operation /// public ServiceOperation ServiceOperation { [DebuggerStepThrough] get { return this.serviceOperation; } } ///Whether the operation is visible to service consumers. public bool IsVisible { [DebuggerStepThrough] get { #if DEBUG Debug.Assert(this.isReadOnly, "Wrapper class has not been initialized yet."); #endif return (this.rights & ~ServiceOperationRights.OverrideEntitySetRights) != ServiceOperationRights.None; } } ///Access rights to this service operation. public ServiceOperationRights Rights { [DebuggerStepThrough] get { #if DEBUG Debug.Assert(this.isReadOnly, "Wrapper class has not been initialized yet."); #endif return this.rights; } } ///Entity set from which entities are read (possibly null). public ResourceSetWrapper ResourceSet { [DebuggerStepThrough] get { #if DEBUG Debug.Assert(this.isReadOnly, "Wrapper class has not been initialized yet."); #endif Debug.Assert( this.serviceOperation.ResourceSet == null || this.resourceSet.ResourceSet == this.serviceOperation.ResourceSet, "this.serviceOperation.ResourceSet == null || this.resourceSet.ResourceSet == this.serviceOperation.ResourceSet"); return this.resourceSet; } } #endregion Properties ////// Apply the given configuration to the resource set. /// /// data service configuration instance. /// data service provider wrapper instance for accessibility validation. public void ApplyConfiguration(DataServiceConfiguration configuration, DataServiceProviderWrapper provider) { #if DEBUG Debug.Assert(!this.isReadOnly, "Can only apply the configuration once."); #endif this.rights = configuration.GetServiceOperationRights(this.serviceOperation); if ((this.rights & ~ServiceOperationRights.OverrideEntitySetRights) != ServiceOperationRights.None) { if (this.serviceOperation.ResourceSet != null) { // If the result type is an entity type, we need to make sure its entity set is visible. // If the entity set is hidden, we need to make sure that we throw an exception. this.resourceSet = provider.TryResolveResourceSet(this.serviceOperation.ResourceSet.Name); if (this.resourceSet == null) { throw new InvalidOperationException(Strings.BaseServiceProvider_ServiceOperationTypeHasNoContainer(this.serviceOperation.Name, this.serviceOperation.ResultType.FullName)); } } } #if DEBUG this.isReadOnly = true; #endif } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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