private async Task UpdateIndexes(InventorySnapshotEntity inventorySnapshotEntity)
{
var existingIndex = await _indexStorage.GetDataAsync(GetIndexPartitionKey(inventorySnapshotEntity.Time),
IndexForLastRowKey);
if (existingIndex == null || (await _storage.GetDataAsync(existingIndex)).Time < inventorySnapshotEntity.Time)
{
// Update index for current day, it now must point to this the last received snapshot
await _indexStorage.InsertOrReplaceAsync(
AzureIndex.Create(GetIndexPartitionKey(inventorySnapshotEntity.Time), IndexForLastRowKey,
inventorySnapshotEntity));
}
// If we have index entries for any future date, they are now are invalid, we can just remove them,
// as they will be reconstructed if needed
var filter = TableQuery.GenerateFilterCondition(nameof(AzureIndex.PartitionKey),
QueryComparisons.GreaterThan,
GetIndexPartitionKey(inventorySnapshotEntity.Time));
var query = new TableQuery <AzureIndex>().Where(filter);
var allNowInvalidIndexEntriesFromTheFuture = (await _indexStorage.WhereAsync(query)).ToList();
foreach (var indexEntity in allNowInvalidIndexEntriesFromTheFuture)
{
await _indexStorage.DeleteAsync(indexEntity);
}
}
public async Task InsertAsync(InventorySnapshot inventorySnapshot)
{
Guid id = Guid.NewGuid();
var entity = new InventorySnapshotEntity(GetPartitionKey(inventorySnapshot.Timestamp), GetRowKey(id))
{
Time = inventorySnapshot.Timestamp,
Json = JsonConvert.SerializeObject(inventorySnapshot)
};
await _storage.InsertAsync(entity);
await UpdateIndexes(entity);
}