/// <summary>
/// Gets the state sets that match the specified search filter.
/// </summary>
/// <param name="identity">The identity of the caller.</param>
/// <param name="filter">The state set search filter.</param>
/// <param name="cancellationToken">The cancellation token for the request.</param>
/// <returns>
/// The state sets defined by the historian, indexed by set name.
/// </returns>
protected override Task <IEnumerable <StateSet> > GetStateSets(ClaimsPrincipal identity, StateSetFilter filter, CancellationToken cancellationToken)
{
if (filter == null)
{
throw new ArgumentNullException(nameof(filter));
}
IEnumerable <StateSet> result = _stateSets.Values;
if (!String.IsNullOrWhiteSpace(filter.Filter))
{
result = result.Where(x => x.Name.Contains(filter.Filter));
}
result = result.OrderBy(x => x.Name, StringComparer.OrdinalIgnoreCase)
.Skip((filter.Page - 1) * filter.PageSize)
.Take(filter.PageSize)
.ToArray();
return(Task.FromResult(result));
}
/// <summary> /// Gets the state sets that match the specified search filter. /// </summary> /// <param name="identity">The identity of the caller.</param> /// <param name="filter">The state set search filter.</param> /// <param name="cancellationToken">The cancellation token for the request.</param> /// <returns> /// The state sets defined by the historian, indexed by set name. /// </returns> protected abstract Task <IEnumerable <StateSet> > GetStateSets(ClaimsPrincipal identity, StateSetFilter filter, CancellationToken cancellationToken);
protected override Task <IEnumerable <StateSet> > GetStateSets(ClaimsPrincipal identity, StateSetFilter filter, CancellationToken cancellationToken)
{
IEnumerable <StateSet> stateSets;
if (String.IsNullOrWhiteSpace(filter.Filter))
{
stateSets = _stateSets.Values;
}
else
{
var f = filter.Filter.ToUpperInvariant();
stateSets = _stateSets.Values.Where(x => x.Name.ToUpperInvariant().Contains(f));
}
var result = stateSets.OrderBy(x => x.Name).Skip((filter.Page - 1) * filter.PageSize).Take(filter.PageSize).ToArray();
return(Task.FromResult <IEnumerable <StateSet> >(result));
}
/// <summary>
/// Gets the state sets that match the specified search filter.
/// </summary>
/// <param name="identity">The identity of the caller.</param>
/// <param name="filter">The state set search filter.</param>
/// <param name="cancellationToken">The cancellation token for the request.</param>
/// <returns>
/// The state sets defined by the historian, indexed by set name.
/// </returns>
async Task <IEnumerable <StateSet> > IHistorian.GetStateSets(ClaimsPrincipal identity, StateSetFilter filter, CancellationToken cancellationToken)
{
ThrowIfDisposed();
return(await GetStateSets(identity, filter, cancellationToken).ConfigureAwait(false));
}
