URLAttribute.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Runtime / Remoting / URLAttribute.cs / 1 / URLAttribute.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*============================================================
** 
** File:    UrlAttribute.cs 
**
** Author:  Tarun Anand (TarunA) 
**
** Purpose: Defines an attribute which can be used at the callsite to
**          specify the URL at which the activation will happen.
** 
** Date:    March 30, 2000
** 
===========================================================*/ 
namespace System.Runtime.Remoting.Activation {
    using System.Runtime.Remoting; 
    using System.Runtime.Remoting.Contexts;
    using System.Runtime.Remoting.Messaging;
    using System.Security.Permissions;	
    using System; 
    [Serializable]
[System.Runtime.InteropServices.ComVisible(true)] 
    public sealed class UrlAttribute : ContextAttribute 
    {
        private String url; 
        private static String propertyName = "UrlAttribute";

        [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)]	
        public UrlAttribute(String callsiteURL) :base(propertyName) 
        {
            if(null == callsiteURL) 
            { 
                // Invalid arg
                throw new ArgumentNullException("callsiteURL"); 
            }
            url = callsiteURL;
        }
 

// Review:  This should be fixed. 
#pragma warning disable 688  // link demand on override 
        // Object::Equals
        // Override the default implementation which just compares the names 
        public override bool Equals(Object o)
        {
            return (o is IContextProperty) && (o is UrlAttribute) &&
                   (((UrlAttribute)o).UrlValue.Equals(url)); 
        }
 
        public override int GetHashCode() 
        {
            return this.url.GetHashCode(); 
        }
#pragma warning disable

        // Override ContextAttribute's implementation of IContextAttribute::IsContextOK 
        [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)]	
[System.Runtime.InteropServices.ComVisible(true)] 
        public override bool IsContextOK(Context ctx, IConstructionCallMessage msg) 
        {
            return false; 
        }

        // Override ContextAttribute's impl. of IContextAttribute::GetPropForNewCtx
        [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)]	 
[System.Runtime.InteropServices.ComVisible(true)]
        public override void GetPropertiesForNewContext(IConstructionCallMessage ctorMsg) 
        { 
            // We are not interested in contributing any properties to the
            // new context since the only purpose of this property is to force 
            // the creation of the context and the server object inside it at
            // the specified URL.
            return;
        } 

        public String UrlValue 
        { 
 	    [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)]	
            get { return url; } 
        }
    }
} // namespace

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