internal KeyValue(IConnection connection, string bucketName, KeyValueOptions kvo)
{
BucketName = Validator.ValidateKvBucketNameRequired(bucketName);
StreamName = KeyValueUtil.ToStreamName(BucketName);
StreamSubject = KeyValueUtil.ToStreamSubject(BucketName);
RawKeyPrefix = KeyValueUtil.ToKeyPrefix(bucketName);
if (kvo == null)
{
js = new JetStream.JetStream(connection, null);
jsm = new JetStreamManagement(connection, null);
PubSubKeyPrefix = RawKeyPrefix;
}
else
{
js = new JetStream.JetStream(connection, kvo.JSOptions);
jsm = new JetStreamManagement(connection, kvo.JSOptions);
if (kvo.JSOptions.IsDefaultPrefix)
{
PubSubKeyPrefix = RawKeyPrefix;
}
else
{
PubSubKeyPrefix = kvo.JSOptions.Prefix + RawKeyPrefix;
}
}
}
/// <summary>
/// Builds the KeyValueConfiguration
/// </summary>
/// <returns>the KeyValueConfiguration</returns>
public KeyValueConfiguration Build()
{
_name = Validator.ValidateKvBucketNameRequired(_name);
scBuilder.WithName(KeyValueUtil.ToStreamName(_name))
.WithSubjects(KeyValueUtil.ToStreamSubject(_name))
.WithAllowRollup(true)
.WithDiscardPolicy(DiscardPolicy.New)
.WithDenyDelete(true);
return(new KeyValueConfiguration(scBuilder.Build()));
}
public void PurgeDeletes(KeyValuePurgeOptions options)
{
long dmThresh = options == null
? KeyValuePurgeOptions.DefaultThresholdMillis
: options.DeleteMarkersThresholdMillis;
DateTime limit;
if (dmThresh < 0)
{
limit = DateTime.UtcNow.AddMilliseconds(600000); // long enough in the future to clear all
}
else if (dmThresh == 0)
{
limit = DateTime.UtcNow.AddMilliseconds(KeyValuePurgeOptions.DefaultThresholdMillis);
}
else
{
limit = DateTime.UtcNow.AddMilliseconds(-dmThresh);
}
IList <string> noKeepList = new List <string>();
IList <string> keepList = new List <string>();
VisitSubject(KeyValueUtil.ToStreamSubject(BucketName), DeliverPolicy.LastPerSubject, true, false, m =>
{
KeyValueEntry kve = new KeyValueEntry(m);
if (!kve.Operation.Equals(KeyValueOperation.Put))
{
if (kve.Created > limit) // created > limit, so created after
{
keepList.Add(new BucketAndKey(m).Key);
}
else
{
noKeepList.Add(new BucketAndKey(m).Key);
}
}
});
foreach (string key in noKeepList)
{
jsm.PurgeStream(StreamName, PurgeOptions.WithSubject(RawKeySubject(key)));
}
foreach (string key in keepList)
{
PurgeOptions po = PurgeOptions.Builder()
.WithSubject(RawKeySubject(key))
.WithKeep(1)
.Build();
jsm.PurgeStream(StreamName, po);
}
}
