private void handleSubscribed(JsonObject message)
{
String subscriptionId = (String)message[ProtocolConstants.ID_FIELD];
// A subscription request has succeeded.
BasicSubscription subscription = subscriptions[subscriptionId];
if (subscription != null && subscription.isPending())
{
subscription.setPending(false);
subscription.getListener().OnSubscribe(subscriptionId);
}
}
private void handleMessage(JsonObject envelope)
{
lock (processLock)
{
long seqNum = 0;
String to = (String)envelope[ProtocolConstants.TO_FIELD];
JsonObject message = (JsonObject)envelope[ProtocolConstants.BODY_FIELD];
object seqNumObj;
if (envelope.TryGetValue(ProtocolConstants.SEQ_NUM_FIELD, out seqNumObj))
{
seqNum = Convert.ToInt64(seqNumObj);
}
// The message will be processed if qos is not enabled, there is no
// sequence number or if the sequence number is greater than the last
// received sequence number.
if (!qos || seqNum == 0 || seqNum > lastSequenceNumber)
{
BasicSubscription subscription = null;
bool exists = subscriptions.TryGetValue(to, out subscription);
if (exists && subscription != null && !subscription.isPending())
{
IMessage[] messages = { new JSONMessage(message) };
try
{
subscription.getListener().OnMessages(messages);
}
catch (Exception)
{
// catch and discard exceptions thrown by the listener
}
}
// track the last received sequence number only if qos is enabled
if (qos && seqNum > 0)
{
lastSequenceNumber = seqNum;
}
}
if (seqNum > 0)
{
ack(seqNum);
}
}
}
private void handleMessages(JsonArray array)
{
lock (processLock)
{
ArrayList messages = new ArrayList(array.Count);
BasicSubscription currentSubscription = null;
long seqNum = 0;
long lastSeqNum = 0;
int max = array.Count;
for (int i = 0; i < max; i++)
{
JsonObject envelope = (JsonObject)array[i];
String to = (string)envelope[ProtocolConstants.TO_FIELD];
JsonObject message = (JsonObject)envelope[ProtocolConstants.BODY_FIELD];
object seqNumObj;
if (envelope.TryGetValue(ProtocolConstants.SEQ_NUM_FIELD, out seqNumObj))
{
seqNum = Convert.ToInt64(seqNumObj);
}
// The message will be processed if qos is not enabled, there is no
// sequence number or if the sequence number is greater than the last
// received sequence number.
if (!qos || seqNum == 0 || seqNum > lastSequenceNumber)
{
BasicSubscription subscription = null;
bool exists = subscriptions.TryGetValue(to, out subscription);
if (exists && subscription != null && !subscription.isPending())
{
if (currentSubscription != null && currentSubscription != subscription)
{
try
{
IMessage[] arr = new IMessage[messages.Count];
for (int j = 0; j < messages.Count; j++)
{
arr[j] = (JSONMessage)messages[j];
}
currentSubscription.getListener().OnMessages(arr);
}
catch (Exception)
{
// catch and discard exceptions thrown by the listener
}
messages.Clear();
}
currentSubscription = subscription;
messages.Add(new JSONMessage(message));
}
// track the last received sequence number only if qos is enabled
if (qos && seqNum > 0)
{
lastSequenceNumber = seqNum;
}
}
if (seqNum > 0)
{
lastSeqNum = seqNum;
}
}
if (currentSubscription != null && messages.Count > 0)
{
try
{
IMessage[] arr = new IMessage[messages.Count];
for (int i = 0; i < messages.Count; i++)
{
arr[i] = (JSONMessage)messages[i];
}
currentSubscription.getListener().OnMessages(arr);
}
catch (Exception e)
{
// catch and discard exceptions thrown by the listener
Console.WriteLine(e.Message);
}
messages.Clear();
}
// Send an acknowledgment for the last sequence number in the array.
// The server will acknowledge all messages less than or equal to
// this sequence number.
if (lastSeqNum > 0)
{
ack(lastSeqNum);
}
}
}
