DataServiceOperationContext.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataWeb / Server / System / Data / Services / DataServiceOperationContext.cs / 1458001 / DataServiceOperationContext.cs
                        
                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//  
//      Class holding all the context about the current request being
//      processed. 
//  
//
// @owner  [....] 
//---------------------------------------------------------------------

namespace System.Data.Services
{ 
    #region Namespaces
 
    using System; 
    using System.Diagnostics;
    using System.Net; 

    #endregion Namespaces

    ///  
    /// Class holding all the context about the current operation being processed.
    ///  
    public sealed class DataServiceOperationContext 
    {
        #region Private Fields 

        /// 
        /// Host interface for the current operation.
        ///  
        private readonly IDataServiceHost hostInterface;
 
        ///  
        /// Host wrapper for the current operation. The wrapper class caches the request header values and validates the data from the host interface.
        ///  
        private DataServiceHostWrapper hostWrapper;

        /// 
        /// True if the current operation is part of a batch request. 
        /// 
        private bool? isBatchRequest; 
 
        #endregion Private Fields
 
        #region Constructor

        /// 
        /// Constructs a new instance of DataServiceOperationContext object 
        /// 
        /// Host instance for the current operation context. 
        internal DataServiceOperationContext(IDataServiceHost host) 
        {
            Debug.Assert(host != null, "host != null"); 
            this.hostInterface = host;
        }

        ///  
        /// Constructs a new instance of DataServiceOperationContext object
        ///  
        /// True if the current operation is part of a batch request. 
        /// Host instance for the current operation context.
        internal DataServiceOperationContext(bool isBatchRequest, IDataServiceHost2 host) 
            : this(host)
        {
            this.isBatchRequest = isBatchRequest;
        } 

        #endregion Constructor 
 
        #region Public Properties
 
        /// 
        /// True if the current operation is part of a batch request.
        /// 
        public bool IsBatchRequest 
        {
            get 
            { 
                if (!this.isBatchRequest.HasValue)
                { 
                    string[] segments = RequestUriProcessor.EnumerateSegments(this.AbsoluteRequestUri, this.AbsoluteServiceUri);
                    if (segments.Length > 0 && segments[0] == XmlConstants.UriBatchSegment)
                    {
                        this.isBatchRequest = true; 
                    }
                    else 
                    { 
                        this.isBatchRequest = false;
                    } 
                }

                return this.isBatchRequest.Value;
            } 
        }
 
        ///  
        /// The HTTP request method (GET, POST, etc.)
        ///  
        public string RequestMethod
        {
            get { return this.hostWrapper.RequestHttpMethod; }
        } 

        ///  
        /// Request Uri for the current operation. 
        /// 
        public Uri AbsoluteRequestUri 
        {
            get { return this.hostWrapper.AbsoluteRequestUri; }
        }
 
        /// 
        /// Base service Uri for the request. 
        ///  
        public Uri AbsoluteServiceUri
        { 
            get { return this.hostWrapper.AbsoluteServiceUri; }
        }

        ///  
        /// Request headers for the current operation.
        ///  
        public WebHeaderCollection RequestHeaders 
        {
            get { return this.hostWrapper.RequestHeaders; } 
        }

        /// 
        /// Response headers for the current operation. 
        /// 
        public WebHeaderCollection ResponseHeaders 
        { 
            get { return this.hostWrapper.ResponseHeaders; }
        } 

        /// 
        /// Gets and sets the response status code
        ///  
        public int ResponseStatusCode
        { 
            get { return this.hostWrapper.ResponseStatusCode; } 
            set { this.hostWrapper.ResponseStatusCode = value; }
        } 

        #endregion Public Properties

        #region Internal Properties 

        ///  
        /// Host instance for the current operation. 
        /// 
        internal DataServiceHostWrapper Host 
        {
            get
            {
                Debug.Assert(this.hostWrapper != null, "Must call InitializeAndCacheHeaders() before calling the Host property."); 
                return this.hostWrapper;
            } 
        } 

        #endregion Internal Properties 

        #region Internal Methods

        ///  
        /// Creates a new instance of the host wrapper to cache the request headers and to validate the data from the host interface.
        ///  
        internal void InitializeAndCacheHeaders() 
        {
            Debug.Assert(this.hostInterface != null, "this.hostInterface != null"); 
            this.hostWrapper = new DataServiceHostWrapper(this.hostInterface);
        }

        #endregion Internal Methods 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
DataServiceOperationContext.cs source code in C# .NET

Source code for the .NET framework in C#

Code:

Link Menu
