private static void ShowData(Sample2Data data, bool dumpData)
{
Console.Clear();
if (dumpData)
Console.WriteLine("Data from storage!!!");
Console.WriteLine("Next offset: {0}", data.NextOffset);
Console.WriteLine("Distribution:");
foreach (var pair in data.Distribution)
{
Console.WriteLine("[{0}]: {1}", pair.Key, pair.Value);
}
}
private static void ShowData(Sample2Data data, bool dumpData)
{
Console.Clear();
if (dumpData)
{
Console.WriteLine("Data from storage!!!");
}
Console.WriteLine("Next offset: {0}", data.NextOffset);
Console.WriteLine("Distribution:");
foreach (var pair in data.Distribution)
{
Console.WriteLine("[{0}]: {1}", pair.Key, pair.Value);
}
}
static void ProcessNextIncrementOfEventsOrSleep(Sample2Data data, IRawEventStoreClient reader, ViewClient views)
{
var nextOffset = data.NextOffset;
// try to read next 10000 events from the platform,
// starting from the recorded offset.
// This is more efficient, than reading one event by one, since it
// reduces cost of reading/writing data by batching
const int maxRecordCount = 10000;
var nextEvents = reader.ReadAllEvents(new EventStoreOffset(nextOffset), maxRecordCount);
var emptyData = true;
// process
foreach (var dataRecord in nextEvents)
{
// update next offset
data.NextOffset = dataRecord.Next.OffsetInBytes;
// update distribution
if (data.Distribution.ContainsKey(dataRecord.EventData.Length))
{
data.Distribution[dataRecord.EventData.Length]++;
}
else
{
data.Distribution[dataRecord.EventData.Length] = 1;
}
emptyData = false;
}
if (emptyData)
{
// we didn't have any new data, so sleep
const int seconds = 1;
Thread.Sleep(seconds * 1000);
}
else
{
// we had some events incoming, so save projection
// at least to update offset record
PrintDataToConsole(data, false);
views.WriteAsJson(data, ViewName);
}
}