public StoreHistoryViewModel(Store store, IEnumerable<PrefixConfiguration> prefixes) : base(store)
{
CommitPoints = new ObservableCollection<CommitPointViewModel>(store.GetCommitPoints(0, 20));
HasMoreCommitPoints = CommitPoints.Count == 20;
HistoricalQueryViewModel = new SparqlQueryViewModel(store, prefixes);
ExecuteCommand = HistoricalQueryViewModel.ExecuteCommand;
RefreshCommand = new RelayCommand(Refresh);
RevertCommand = new RelayCommand(Revert);
MoreCommitPointsCommand = new RelayCommand(MoreCommitPoints);
}
public void MoreCommitPoints()
{
var lastCommitPoint = CommitPoints[CommitPoints.Count - 1];
int foundCount = 0;
if (DateTimeFilterFrom == null && DateTimeFilterTo == null)
{
foreach (var commitPoint in Store.GetCommitPoints(CommitPoints.Count, 100))
{
foundCount++;
if (commitPoint.CommitTime < lastCommitPoint.CommitTime)
{
CommitPoints.Add(commitPoint);
}
}
if (CommitPoints[CommitPoints.Count - 1].Id == lastCommitPoint.Id)
{
// We didn't add any new commit points. This indicates that a lot of new commit points have been added to the store recently so we should do a full update
Refresh();
}
else
{
HasMoreCommitPoints = (foundCount == 100);
}
}
else
{
DateTime latest, earliest;
GetDateTimeFilter(out latest, out earliest);
var initialCount = CommitPoints.Count;
foreach (var commitPoint in Store.GetCommitPoints(latest, earliest, CommitPoints.Count, 100))
{
foundCount++;
CommitPoints.Add(commitPoint);
}
HasMoreCommitPoints = (CommitPoints.Count - initialCount) == 100;
}
}
public void Refresh()
{
if (DateTimeFilterFrom == null && DateTimeFilterTo == null)
{
var targetCount = Math.Max(100, CommitPoints.Count);
CommitPoints.Clear();
foreach (var commitPoint in Store.GetCommitPoints(0, targetCount))
{
CommitPoints.Add(commitPoint);
}
HasMoreCommitPoints = CommitPoints.Count == targetCount;
}
else
{
DateTime latest, earliest;
GetDateTimeFilter(out latest, out earliest);
CommitPoints.Clear();
foreach (var commitPoint in Store.GetCommitPoints(latest, earliest, 0, 100))
{
CommitPoints.Add(commitPoint);
}
HasMoreCommitPoints = CommitPoints.Count == 100;
}
}
public StoreHistoryViewModel(Store store, IEnumerable <PrefixConfiguration> prefixes) : base(store)
{
CommitPoints = new ObservableCollection <CommitPointViewModel>(store.GetCommitPoints(0, 20));
HasMoreCommitPoints = CommitPoints.Count == 20;
HistoricalQueryViewModel = new SparqlQueryViewModel(store, prefixes);
ExecuteCommand = HistoricalQueryViewModel.ExecuteCommand;
RefreshCommand = new RelayCommand(Refresh);
RevertCommand = new RelayCommand(Revert);
MoreCommitPointsCommand = new RelayCommand(MoreCommitPoints);
}
