private EntityResolver <MinMaxItemRecord> GetMinMaxItemRecordResolver()
{
return((partKey, rowKey, timestamp, propertySegment, etag) =>
{
var rec = new MinMaxItemRecord();
try
{
rec.PartitionKey = partKey;
rec.RowKey = rowKey;
rec.Timestamp = timestamp.Date;
rec.ETag = etag;
if (propertySegment.ContainsKey("MinItemId"))
{
rec.MinItemId = propertySegment.FirstOrDefault(ps => ps.Key == "MinItemId").Value.Int32Value.GetValueOrDefault(0);
}
if (propertySegment.ContainsKey("MaxItemId"))
{
rec.MaxItemId = propertySegment.FirstOrDefault(ps => ps.Key == "MaxItemId").Value.Int32Value.GetValueOrDefault(0);
}
}
catch (Exception e)
{
Log.Error().Exception(e).Message("Failed to create Min Max Item Record resolver.").Write();
throw;
}
return rec;
});
}
public void UpdateRecordStats()
{
// Save off max item identifier by Type in separate table.
// Create the resolver first.
var resolver = GetItemRecordResolver();
// Declare types that we will create a record for.
var types = new[] { "job", "story", "comment", "poll", "pollopt" };
foreach (var type in types)
{
var filter = TableQuery.GenerateFilterCondition("Type", QueryComparisons.Equal, type);
var query = new TableQuery();
query.FilterString = filter;
var getAllTask = _adapter.GetAll(_tableName, query, resolver);
getAllTask.Wait();
var itemRecordsForType = getAllTask.Result;
if (itemRecordsForType.Any())
{
var minMaxRecord = new MinMaxItemRecord()
{
PartitionKey = type,
RowKey = "0",
MinItemId = itemRecordsForType.Min(i => Convert.ToInt32(i.RowKey)),
MaxItemId = itemRecordsForType.Max(i => Convert.ToInt32(i.RowKey)),
SnapShotRecordCount = Convert.ToInt32(itemRecordsForType.Count)
};
_adapter.Save(minMaxRecord, _minMaxRecordTableName, minMaxRecord.PartitionKey, minMaxRecord.RowKey);
}
}
}
