ImportRequest.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / infocard / Service / managed / Microsoft / InfoCards / ImportRequest.cs / 1 / ImportRequest.cs

                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------
namespace Microsoft.InfoCards
{ 
    using System;
    using System.Collections; 
    using System.Security.Principal; 
    using System.Diagnostics;
    using System.Threading; //ManualResetEvent 
    using System.ComponentModel; //Win32Exception
    using System.IO; //Stream
    using System.Text;
    using IDT = Microsoft.InfoCards.Diagnostics.InfoCardTrace; 
    using Microsoft.InfoCards.Diagnostics;
 
    // 
    // This class is an instance of a request to import a card from a file.
    // It starts up the UI in the 'Import' mode. 
    //


    class ImportRequest : ClientUIRequest 
    {
        FileStream  m_importFile;  //keep a read pointer to the file 
        string m_filename; 

 
        public ImportRequest( Process callingProcess, WindowsIdentity callingIdentity, InfoCardUIAgent uiAgent, IntPtr rpcHandle, Stream inArgs, Stream outArgs )
            : base( callingProcess, callingIdentity, uiAgent, rpcHandle, inArgs, outArgs, InfoCardUIAgent.CallMode.Import, ExceptionList.AllNonFatal )
        {
        } 

        public string ImportedFile 
        { 
            get{ return m_filename; }
        } 

        //
        // No input args
        // 
        protected override void OnMarshalInArgs()
        { 
            BinaryReader breader = new InfoCardBinaryReader( InArgs, Encoding.Unicode ); 
            string filename = Utility.DeserializeString( breader );
            if (String.IsNullOrEmpty(filename) || filename.Length > Constants.Maxima.FileNameLength) 
            {
                throw IDT.ThrowHelperError( new ImportException( SR.GetString( SR.InvalidImportFileName ) ) );
            }
            if( !Path.IsPathRooted( filename ) ) 
            {
                throw IDT.ThrowHelperError( new ImportException( SR.GetString( SR.InvalidImportFileName) ) ); 
            } 
            try
            { 
                m_filename = filename;
                m_importFile = new FileStream( m_filename, FileMode.Open, FileAccess.Read, FileShare.Read );
            }
            catch( ArgumentException e ) 
            {
                throw IDT.ThrowHelperError( new ImportException( SR.GetString( SR.CannotOpenImportFile ), e ) ); 
            } 
            catch( IOException e )
            { 
                throw IDT.ThrowHelperError( new ImportException( SR.GetString( SR.CannotOpenImportFile ), e ) );
            }
            catch( NotSupportedException e )
            { 
                throw IDT.ThrowHelperError( new ImportException( SR.GetString( SR.CannotOpenImportFile ), e ) );
            } 
            catch( UnauthorizedAccessException e ) 
            {
                throw IDT.ThrowHelperError( new ImportException( SR.GetString( SR.CannotOpenImportFile ), e ) ); 
            }
        }

        protected override void OnProcess() 
        {
            // 
            // ClientUiRequest's member function 
            //
            StartAndWaitForUIAgent(); 
        }

        //
        // No Output args. 
        //
        protected override void OnMarshalOutArgs() 
        { 
        }
 
        protected override void OnDisposeAsUser()
        {
            base.OnDisposeAsUser();
 
            if( null != m_importFile )
            { 
                m_importFile.Dispose(); 
                m_importFile = null;
            } 
        }

        //
        // Summary 
        // Gets called a) if there was an exception in client processing
        // or b) if there was an exception in the child's request processing 
        // 
        protected override bool OnHandleException( Exception e, out int errorCode )
        { 
            errorCode = 0;
            bool handled = false;

            if( e is UserCancelledException ) 
            {
                errorCode = (e as UserCancelledException).NativeHResult; 
                handled = true; 
            }
 
            return handled;
        }

 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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