RevitSdkSamples/SDK/Samples/ExternalResourceServer/ExternalResourceDBServer/CS/ServerInterfaceExtensionsForRevitLinks.cs

//
// (C) Copyright 2003-2019 by Autodesk, Inc.
//
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// object code form for any purpose and without fee is hereby granted,
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using Autodesk.Revit;
using Autodesk.Revit.DB;
namespace Revit.SDK.Samples.ExternalResourceDBServer.CS
{

   /// <summary>
   /// Extension operator to support "Open (and Unload)" command.
   /// Revit will call this method to determine the location of the locally-cached copy
   /// of the linked model, and will open that copy directly.
   /// </summary>
   //=====================================================================================
   public class GetLinkPathForOpen : IGetLocalPathForOpenCallback
   {
      /// <summary>
      /// This implementation simply retrieves the same local file name that the server
      /// uses when first copying the link document to the user's machine.
      /// </summary>
      public string GetLocalPathForOpen(ExternalResourceReference desiredReference)
      {
         return SampleExternalResourceDBServer.GetFullLinkCachedFilePath(desiredReference);
      }
   }



   /// <summary>
   /// Extension operator to support handle updates when the user saves new shared coordinates in the
   /// local copy of a link.
   /// </summary>
   //=====================================================================================
   public class LocalLinkSharedCoordinatesSaved : IOnLocalLinkSharedCoordinatesSavedCallback
   {
      /// <summary>
      /// When the user updates the shared coordinates in the link model, Revit calls this
      /// method.  In this implementation, the updated local version of the link on the user's
      /// machine is uploaded (copied) back to the server location.
      /// </summary>
      public void OnLocalLinkSharedCoordinatesSaved(ExternalResourceReference changedReference)
      {
         string localLinkPath = SampleExternalResourceDBServer.GetFullLinkCachedFilePath(changedReference);
         string fullServerPath = SampleExternalResourceDBServer.GetFullServerLinkFilePath(changedReference);
         String serverDirectoryName = System.IO.Path.GetDirectoryName(fullServerPath);
         if (!System.IO.Directory.Exists(serverDirectoryName))
         {
            System.IO.Directory.CreateDirectory(serverDirectoryName);
         }
         System.IO.File.Copy(localLinkPath, fullServerPath, true);  // Overwrite
      }
   }

}