public async Task PullAsync(PullerSettings settings, CancellationToken ct)
{
// ReSharper disable once InconsistentlySynchronizedField
logger.Debug($"Попытка сделать pull контента из источника");
OnPullInvoked();
try {
Items.Clear();
var posts = await _contentPullerStrategy.GetAsync(WallHolder, settings, ct);
lock (_locker) {
Items.AddRange(posts);
LastTimePulled = DateTimeOffset.Now;
logger.Debug($"Pull удачный. Получено элементов - {Items?.Count}");
OnPullCompleted(new ContentPullerEventArgs {
Successful = true, Items = Items
});
}
}
catch (Exception ex) {
// ReSharper disable once InconsistentlySynchronizedField
logger.Debug(ex, "Ошибка при пуллинге контента. Очистка текущих элементов.");
Items.Clear();
OnPullCompleted(new ContentPullerEventArgs {
Successful = false
});
}
}
public async Task <IEnumerable <IPost> > GetAsync(IWallHolder wallHolder, PullerSettings settings, CancellationToken ct)
{
var postList = new List <IPost>();
postList.AddRange(await getPostsWithAnOffset(wallHolder.ID, 100, 0, ct));
postList.Sort((a, b) => a.Date.CompareTo(b.Date));
return(postList);
}
public async Task <IEnumerable <IPost> > GetAsync(IWallHolder wallHolder, PullerSettings settings, CancellationToken ct)
{
var postList = new List <IPost>();
postList.AddRange(await getPostsOfPage(wallHolder.ID, ITEMS_PER_PAGE, 0));
postList.Sort((a, b) => b.Date.CompareTo(a.Date));
return(postList);
}
public async Task <IEnumerable <IPost> > GetAsync(IWallHolder wallHolder, PullerSettings settings, CancellationToken ct)
{
var timePeriodSettings = settings as TimePeriodSettings;
if (timePeriodSettings == null)
{
var noSettings = settings as NoPullerSettings;
if (noSettings == null)
{
throw new VkException("Не предоставлены корректные настройки");
}
}
var days = timePeriodSettings?.Days ?? 1;
var postList = new List <IPost>();
const int postsToPull = 25;
int offset = 0;
while (true)
{
postList.AddRange(await getPostsWithAnOffset(wallHolder.ID, postsToPull, offset, ct));
offset += postsToPull;
if (postList.LastOrDefault().Date > days)
{
;
}
}
if (postList.Count == 100)
{
postList.AddRange(await getPostsWithAnOffset(wallHolder.ID, 50, 100, ct));
}
postList.Sort((a, b) => a.Date.CompareTo(b.Date));
return(postList);
}
public Task <IEnumerable <IPost> > GetAsync(IWallHolder wallHolder, PullerSettings settings)
{
return(GetAsync(wallHolder, settings, CancellationToken.None));
}
public async Task PullAsync(PullerSettings settings)
{
await PullAsync(settings, CancellationToken.None);
}
