private void btnStart_Click(object sender, EventArgs e)
{
groupBox1.Enabled = false;
btnStart.Enabled = false;
btnStop.Enabled = true;
btnClear.Enabled = false;
_mostRecentTimestamp = DateTime.MinValue;
_nextUpdateTimestamp = DateTime.MinValue;
ShardIteratorType iteratorType = ShardIteratorType.LATEST;
if (rbStartOfStream.Checked)
{
iteratorType = ShardIteratorType.TRIM_HORIZON;
}
if (_tpAverageConsumer.ShardIteratorType != iteratorType)
{
Clear();
}
_tpAverageConsumer.ShardIteratorType = iteratorType;
_tpCorrelationConsumer.ShardIteratorType = iteratorType;
IsReading = true;
Read();
}
public KShard(string shardId, string streamName, ShardIteratorType shardIteratorType, string sequenceNumber)
{
ShardId = shardId;
StreamName = streamName;
ShardIteratorType = shardIteratorType;
SequenceNumber = sequenceNumber;
LastUpdateUtc = DateTime.UtcNow;
}
public ShardSettings(
string streamName,
string shardId,
ShardIteratorType shardIteratorType,
TimeSpan refreshInterval,
int limit,
string startingSequenceNumber = null,
DateTime?atTimestamp = null)
{
if (limit > 10000 || limit < 1)
{
throw new ArgumentException("Limit must be between 0 and 10000. See: http://docs.aws.amazon.com/kinesis/latest/APIReference/API_GetRecords.html");
}
StreamName = streamName;
ShardId = shardId;
ShardIteratorType = shardIteratorType;
RefreshInterval = refreshInterval;
Limit = limit;
StartingSequenceNumber = startingSequenceNumber;
AtTimestamp = atTimestamp;
if (shardIteratorType == ShardIteratorType.AFTER_SEQUENCE_NUMBER ||
shardIteratorType == ShardIteratorType.AT_SEQUENCE_NUMBER)
{
if (string.IsNullOrEmpty(startingSequenceNumber))
{
throw new ArgumentException($"Shard iterator type [{shardIteratorType}] require starting sequence number to be provided.", nameof(startingSequenceNumber));
}
}
else if (shardIteratorType == ShardIteratorType.AT_TIMESTAMP)
{
if (!atTimestamp.HasValue)
{
throw new ArgumentException($"Shard iterator type [{shardIteratorType}] require atTimestamp to be provided.", nameof(atTimestamp));
}
}
}
public ShardSettings WithShardIteratorType(ShardIteratorType shardIteratorType) => new ShardSettings(this.StreamName, this.ShardId, shardIteratorType, this.RefreshInterval, this.Limit, this.StartingSequenceNumber, this.AtTimestamp);
