public void Handle(ClientMessage.ReadNextNPersistentMessages message)
{
if (!_started)
{
return;
}
var streamAccess = _readIndex.CheckStreamAccess(
message.EventStreamId, StreamAccessType.Read, message.User);
if (!streamAccess.Granted)
{
message.Envelope.ReplyWith(
new ClientMessage.ReadNextNPersistentMessagesCompleted(message.CorrelationId,
ClientMessage.ReadNextNPersistentMessagesCompleted.ReadNextNPersistentMessagesResult
.AccessDenied,
"Access Denied.",
null));
return;
}
List <PersistentSubscription> subscribers;
if (!_subscriptionTopics.TryGetValue(message.EventStreamId, out subscribers))
{
message.Envelope.ReplyWith(
new ClientMessage.ReadNextNPersistentMessagesCompleted(message.CorrelationId,
ClientMessage.ReadNextNPersistentMessagesCompleted.ReadNextNPersistentMessagesResult
.DoesNotExist,
"Not found.",
null));
return;
}
var key = BuildSubscriptionGroupKey(message.EventStreamId, message.GroupName);
PersistentSubscription subscription;
if (!_subscriptionsById.TryGetValue(key, out subscription))
{
message.Envelope.ReplyWith(
new ClientMessage.ReadNextNPersistentMessagesCompleted(message.CorrelationId,
ClientMessage.ReadNextNPersistentMessagesCompleted.ReadNextNPersistentMessagesResult
.DoesNotExist,
"Not found.",
null));
return;
}
var messages = subscription.GetNextNOrLessMessages(message.Count).ToArray();
message.Envelope.ReplyWith(
new ClientMessage.ReadNextNPersistentMessagesCompleted(message.CorrelationId,
ClientMessage.ReadNextNPersistentMessagesCompleted.ReadNextNPersistentMessagesResult.Success,
string.Format("{0} read.", messages.Length),
messages));
}
private void GetNextNMessages(HttpEntityManager http, UriTemplateMatch match)
{
if (_httpForwarder.ForwardRequest(http))
{
return;
}
var groupname = match.BoundVariables["subscription"];
var stream = match.BoundVariables["stream"];
var cnt = match.BoundVariables["count"];
var embed = GetEmbedLevel(http, match);
int count = DefaultNumberOfMessagesToGet;
if (!cnt.IsEmptyString() && (!int.TryParse(cnt, out count) || count > 100 || count < 1))
{
SendBadRequest(http,
string.Format("Message count must be an integer between 1 and 100 'count' ='{0}'", count));
return;
}
var envelope = new SendToHttpEnvelope(
_networkSendQueue, http,
(args, message) => Format.ReadNextNPersistentMessagesCompleted(http,
message as ClientMessage.ReadNextNPersistentMessagesCompleted, stream, groupname, count, embed),
(args, message) => {
int code;
var m = message as ClientMessage.ReadNextNPersistentMessagesCompleted;
if (m == null)
{
throw new Exception("unexpected message " + message);
}
switch (m.Result)
{
case
ClientMessage.ReadNextNPersistentMessagesCompleted.ReadNextNPersistentMessagesResult
.Success:
code = HttpStatusCode.OK;
break;
case
ClientMessage.ReadNextNPersistentMessagesCompleted.ReadNextNPersistentMessagesResult
.DoesNotExist:
code = HttpStatusCode.NotFound;
break;
case
ClientMessage.ReadNextNPersistentMessagesCompleted.ReadNextNPersistentMessagesResult
.AccessDenied:
code = HttpStatusCode.Unauthorized;
break;
default:
code = HttpStatusCode.InternalServerError;
break;
}
return(new ResponseConfiguration(code, http.ResponseCodec.ContentType,
http.ResponseCodec.Encoding));
});
var cmd = new ClientMessage.ReadNextNPersistentMessages(
Guid.NewGuid(),
Guid.NewGuid(),
envelope,
stream,
groupname,
count,
http.User);
Publish(cmd);
}
