private void Run(String[] args)
{
if (!ParseCommandLine(args))
{
return;
}
SessionOptions.ServerAddress[] servers
= new SessionOptions.ServerAddress[d_hosts.Count];
for (int i = 0; i < d_hosts.Count; ++i)
{
servers[i]
= new SessionOptions.ServerAddress(d_hosts[i], d_port);
}
SessionOptions sessionOptions = new SessionOptions();
sessionOptions.ServerAddresses = servers;
sessionOptions.DefaultSubscriptionService = d_service;
sessionOptions.DefaultTopicPrefix = "ticker";
// normally defaults to "ticker"
sessionOptions.AuthenticationOptions = d_authOptions;
sessionOptions.AutoRestartOnDisconnection = true;
sessionOptions.NumStartAttempts = servers.Length;
Console.WriteLine("Connecting to");
foreach (SessionOptions.ServerAddress server in
sessionOptions.ServerAddresses)
{
Console.WriteLine(" " + server);
}
Console.WriteLine();
Session session = new Session(sessionOptions);
if (!session.Start())
{
for (;;)
{
Event e = session.TryNextEvent();
if (e == null)
{
break;
}
PrintMessage(e);
}
Console.Error.WriteLine("Failed to start session.");
return;
}
Identity identity = null;
if (d_authOptions != null)
{
bool isAuthorized = false;
identity = session.CreateIdentity();
if (session.OpenService("//blp/apiauth"))
{
Service authService = session.GetService("//blp/apiauth");
isAuthorized = Authorize(authService,
identity,
session,
new CorrelationID());
}
else
{
Console.Error.WriteLine("Failed to open //blp/apiauth.");
}
if (!isAuthorized)
{
Console.Error.WriteLine("No authorization");
return;
}
}
String fieldsString = "?fields=";
for (int iField = 0; iField < d_fields.Count; ++iField)
{
if (0 != iField)
{
fieldsString += ",";
}
fieldsString += d_fields[iField];
}
// NOTE: resources used by a snapshot request template are
// released only when 'RequestTemplateTerminated' message
// is received or when the session is destroyed. In order
// to release resources when request template is not needed
// anymore, user should call the 'Session.cancel' and pass
// the correlation id used when creating the request template,
// or call 'RequestTemplate.close'. If the 'Session.cancel'
// is used, all outstanding requests are canceled and the
// underlying subscription is closed immediately. If the
// handle is closed with the 'RequestTemplate.close', the
// underlying subscription is closed only when all outstanding
// requests are served.
Console.WriteLine("Creating snapshot request templates\n");
List <RequestTemplate> snapshots = new List <RequestTemplate>();
for (int iTopic = 0; iTopic < d_topics.Count; ++iTopic)
{
String subscriptionString
= d_service + d_topics[iTopic] + fieldsString;
RequestTemplate requestTemplate
= session.createSnapshotRequestTemplate(
subscriptionString,
new CorrelationID(iTopic),
identity);
snapshots.Add(requestTemplate);
}
int eventCount = 0;
while (true)
{
Event eventObj = session.NextEvent(1000);
foreach (Message msg in eventObj)
{
if (eventObj.Type == Event.EventType.RESPONSE ||
eventObj.Type == Event.EventType.PARTIAL_RESPONSE)
{
long iTopic = msg.CorrelationID.Value;
String topic = d_topics[(int)iTopic];
Console.WriteLine(topic + " - SNAPSHOT - ");
}
Console.WriteLine(msg);
}
if (eventObj.Type == Event.EventType.RESPONSE)
{
if (++eventCount >= d_maxEvents)
{
break;
}
}
if (eventObj.Type == Event.EventType.TIMEOUT)
{
Console.WriteLine(
"Sending request using the request templates\n");
for (int iTopic = 0; iTopic < snapshots.Count; ++iTopic)
{
session.SendRequest(snapshots[iTopic],
new CorrelationID(iTopic));
}
}
}
}
