/// <summary>
/// Pull responses for Java clients
/// </summary>
/// <param name="action">indicating the action</param>
/// <param name="position">indicating the position</param>
/// <param name="count">indicating the count</param>
/// <returns>returns the responses messages</returns>
/// <param name="version">indicating the message version</param>
public BrokerResponseMessages PullResponses(string action, GetResponsePosition position, int count, MessageVersion version)
{
this.CheckDisconnected();
this.timeoutManager.ResetTimeout();
if (this.responsesClient is PullResponsesHandler)
{
PullResponsesHandler handler = this.responsesClient as PullResponsesHandler;
if (handler.Match(action))
{
return(handler.PullResponses(position, count));
}
}
if (this.responsesClient != null)
{
this.responsesClient.Dispose();
}
this.responsesClient = new PullResponsesHandler(this.queue, action, this.timeoutManager, this.observer, this.sharedData, version);
return((this.responsesClient as PullResponsesHandler).PullResponses(position, count));
}
/// <summary>
/// Get responses
/// </summary>
/// <param name="action">indicating the action</param>
/// <param name="clientData">indicating the client data</param>
/// <param name="resetToBegin">indicating the position</param>
/// <param name="count">indicating the count</param>
/// <param name="callbackInstance">indicating the callback instance</param>
/// <param name="version">indicating the message version</param>
public void GetResponses(string action, string clientData, GetResponsePosition resetToBegin, int count, IResponseServiceCallback callbackInstance, MessageVersion version)
{
this.CheckDisconnected();
this.timeoutManager.ResetTimeout();
if (this.responsesClient is GetResponsesHandler)
{
GetResponsesHandler handler = this.responsesClient as GetResponsesHandler;
if (handler.Matches(action, clientData))
{
handler.GetResponses(resetToBegin, count, callbackInstance);
return;
}
}
if (this.responsesClient != null)
{
this.responsesClient.Dispose();
}
this.responsesClient = new GetResponsesHandler(this.queue, action, clientData, this.clientId, this.timeoutManager, this.observer, this.sharedData, version);
(this.responsesClient as GetResponsesHandler).GetResponses(resetToBegin, count, callbackInstance);
}
/// <summary>
/// Dispose the broker client
/// </summary>
/// <param name="disposing">indicating whether it is disposing</param>
private void Dispose(bool disposing)
{
this.disposing = disposing;
try
{
// Set state
this.state = BrokerClientState.Disconnected;
// Copy all the connected instances out of lock
List <object> connectedList = null;
lock (this.connectedInstance)
{
connectedList = new List <object>(this.connectedInstance.Keys);
}
foreach (object instance in connectedList)
{
try
{
BrokerTracing.TraceInfo("[BrokerClient] Try to close the connected instance: {0} ({1})", instance.ToString(), instance.GetHashCode());
if (instance is IDisposable)
{
// BrokerController
((IDisposable)instance).Dispose();
}
else if (instance is IChannel)
{
Utility.AsyncCloseICommunicationObject((ICommunicationObject)instance);
}
else
{
Debug.Fail("[BrokerClient] Connected instance must be IDisposable or IChannel.");
}
}
catch (Exception e)
{
BrokerTracing.TraceWarning("[BrokerClient] Failed to close the connected instance: {0}", e);
}
}
if (disposing)
{
if (this.queue != null)
{
this.queue.OnEvent -= this.Queue_OnEvent;
this.queue.OnPutResponsesSuccessEvent -= this.Queue_OnPutResponsesSuccessEvent;
this.queue.OnFatalExceptionEvent -= this.Queue_OnFatalExceptionEvent;
//for durable session, the queue is closed unless there were flushed requests, dispose if EOM was called.
if (this.sharedData.BrokerInfo.Durable)
{
if (this.queue.FlushedRequestsCount == 0)
{
BrokerTracing.TraceInfo("[BrokerClient] durable session broker client {0} close the queue.", this.clientId);
//if not ever flushed, reduce the count of all requests in the queue
this.observer.ReduceUncommittedCounter(this.queue.AllRequestsCount);
this.queue.Close();
}
else if (this.endOfMessageCalled)
{
// Only dispose the broker queue if it is a durable session. Non-durable broker queue for
// interactive session should be kept/reused and closed when closing the broker domain.
//
// Note (related bug #14224): logic in BrokerClient.SyncDisconnect() ensures that BrokerClient
// instance will not be disposed if EndRequests is called (this.state = BrokerClientState.EndRequests).
// So below code snippet could only be reached on broker entry exiting.
this.observer.ReduceUncommittedCounter(this.queue.AllRequestsCount - this.queue.FlushedRequestsCount);
this.queue.Dispose();
}
}
else //for interactive session, close the queue if EOM is not called.
{
if (!this.endOfMessageCalled)
{
BrokerTracing.TraceInfo("[BrokerClient] interactive session broker client {0} close the queue.", this.clientId);
if (!this.v2ProxyClient)
{
//reduce the count of all unflushed requests in the queue
this.observer.ReduceUncommittedCounter(this.queue.AllRequestsCount - this.queue.FlushedRequestsCount);
}
this.queue.Close();
}
}
this.queue = null;
this.batchMessageIds.Clear();
}
}
if (this.responsesClient != null)
{
this.responsesClient.Dispose();
this.responsesClient = null;
}
if (this.timeoutManager != null)
{
this.timeoutManager.Dispose();
this.timeoutManager = null;
}
// do not dispose this.lockForDiscardRequests for this may block the threads in the write queue, which may lead to the hang when broker entry exits.
// do not dispose this.batchIdChangedEvent for any wait for the event would hang
}
catch (Exception e)
{
BrokerTracing.TraceWarning("[BrokerClient] Exception thrown while disposing: {0}", e);
}
}
