public void GetChanges()
{
if (client.HasDatabase("test_changes"))
{
client.DeleteDatabase("test_changes");
}
var db = client.GetDatabase("test_changes");
db.CreateDocument(null, "{}", new Result <string>()).Wait();
CouchChanges changes = db.GetChanges(new ChangeOptions(), new Result <CouchChanges>()).Wait();
Assert.AreEqual(1, changes.Results.Length);
Assert.IsNotNull(changes.Results[0].Changes);
Assert.IsNotNull(changes.Results[0].Id);
Assert.IsNotNull(changes.Results[0].Sequence);
}
/// <summary>
/// Determine whether the given sequence number
/// matches the most up-to-date status.
/// </summary>
public bool LastSequenceNumberChanged(int since)
{
using (JtTimer pt = new JtTimer(
"LastSequenceNumberChanged"))
{
ChangeOptions opt = new ChangeOptions();
opt.Since = since;
opt.IncludeDocs = false;
CouchChanges <DbFurniture> changes
= _db.GetChanges <DbFurniture>(opt);
CouchChangeResult <DbFurniture> r
= changes.Results.LastOrDefault <
CouchChangeResult <DbFurniture> >();
Debug.Assert(null == r || since < r.Sequence,
"expected monotone growing sequence number");
return(null != r && since < r.Sequence);
}
}
/// <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");
}
