/// <summary>
/// Repeatedly check database status and raise
/// external event when updates are pending.
/// Relinquish control and wait for timeout
/// period between each attempt. Run in a
/// separate thread.
/// </summary>
static void CheckForPendingDatabaseChanges()
{
while (null != _event)
{
++_nLoopCount;
Debug.Assert(null != _event,
"expected non-null external event");
if (_event.IsPending)
{
Util.Log(string.Format(
"CheckForPendingDatabaseChanges loop {0} - "
+ "database update event is pending",
_nLoopCount));
}
else
{
using (JtTimer pt = new JtTimer(
"CheckForPendingDatabaseChanges"))
{
++_nCheckCount;
Util.Log(string.Format(
"CheckForPendingDatabaseChanges loop {0} - "
+ "check for changes {1}",
_nLoopCount, _nCheckCount));
RoomEditorDb rdb = new RoomEditorDb();
if (rdb.LastSequenceNumberChanged(
DbUpdater.LastSequence))
{
_event.Raise();
++_nUpdatesRequested;
Util.Log(string.Format(
"database update pending event raised {0} times",
_nUpdatesRequested));
#region Obsolete attempts that failed
// Move the mouse in case the user does
// not. Otherwise, it may take a while
// before Revit forwards the event Raise
// to the event handler Execute method.
// Just moving the mouse is not enough:
//System.Drawing.Point p = Cursor.Position;
//Cursor.Position = new System.Drawing
// .Point( p.X + 1, p.Y );
//Cursor.Position = p;
// This did not work either:
//[DllImport( "user32.dll" )]
//static extern IntPtr SetFocus(
// IntPtr hwnd );
//IWin32Window revit_window
// = new JtWindowHandle(
// ComponentManager.ApplicationWindow );
//IntPtr hwnd = SetFocus( revit_window.Handle );
//IntPtr hwnd2 = SetFocus( hwnd );
//Debug.Print( "set to rvt {0} --> {1} --> {2}",
// revit_window.Handle, hwnd, hwnd2 );
// Try SendKeys?
#endregion // Obsolete attempts that failed
// Set focus to Revit for a moment.
// Otherwise, it may take a while before
// Revit forwards the event Raise to the
// event handler Execute method.
IntPtr hBefore = GetForegroundWindow();
SetForegroundWindow(
ComponentManager.ApplicationWindow);
SetForegroundWindow(hBefore);
}
}
}
// Wait a moment and relinquish control before
// next check for pending database updates.
Thread.Sleep(_timeout);
}
}
/// <summary>
/// Apply all current cloud database
/// changes to the BIM.
/// </summary>
public void UpdateBim()
{
Util.Log("UpdateBim begin");
using (JtTimer pt = new JtTimer("UpdateBim"))
{
Document doc = _uiapp.ActiveUIDocument.Document;
// Retrieve all room unique ids in model:
FilteredElementCollector rooms
= new FilteredElementCollector(doc)
.OfClass(typeof(SpatialElement))
.OfCategory(BuiltInCategory.OST_Rooms);
IEnumerable <string> roomUniqueIds
= rooms.Select <Element, string>(
e => e.UniqueId);
// Convert to a dictionary for faster lookup:
_roomUniqueIdDict
= new Dictionary <string, int>(
roomUniqueIds.Count());
foreach (string s in roomUniqueIds)
{
_roomUniqueIdDict.Add(s, 1);
}
//string ids = "?keys=[%22" + string.Join(
// "%22,%22", roomUniqueIds ) + "%22]";
// Retrieve all furniture transformations
// after the last sequence number:
CouchDatabase db = new RoomEditorDb().Db;
ChangeOptions opt = new ChangeOptions();
opt.IncludeDocs = true;
opt.Since = LastSequence;
opt.View = "roomedit/map_room_to_furniture";
// I tried to add a filter to this view, but
// that is apparently not supported by the
// CouchDB or DreamSeat GetChanges functionality.
//+ ids; // failed attempt to filter view by room id keys
// Specify filter function defined in
// design document to get updates
//opt.Filter =
CouchChanges <DbFurniture> changes
= db.GetChanges <DbFurniture>(opt);
CouchChangeResult <DbFurniture>[] results
= changes.Results;
foreach (CouchChangeResult <DbFurniture> result
in results)
{
UpdateBimFurniture(result.Doc);
LastSequence = result.Sequence;
}
}
Util.Log("UpdateBim end");
}