/*****************************************************************************
* Function : createSession
* Description : This function creates a session object and opens the market
* bar service. Returns false on failure of either.
* Arguments : none
* Returns : bool
*****************************************************************************/
private bool createSession()
{
if (d_session != null)
{
d_session.Stop();
}
System.Console.WriteLine("Connecting to " + d_sessionOptions.ServerHost +
":" + d_sessionOptions.ServerPort);
d_session = new Session(d_sessionOptions, new EventHandler(processEvent));
if (!d_session.Start())
{
System.Console.WriteLine("Failed to start session");
return(false);
}
System.Console.WriteLine("Connected successfully\n");
if (!d_session.OpenService("//blp/mktbar"))
{
System.Console.WriteLine("Failed to open service //blp/mktbar");
d_session.Stop();
return(false);
}
System.Console.WriteLine("Subscribing...");
d_session.Subscribe(d_subscriptions);
return(true);
}
/// <summary>
/// Initialises the specified URI session and opens the service.
/// </summary>
/// <param name="uri">The URI.</param>
/// <returns></returns>
private bool Initialise(string uri, int requestCount)
{
sessionOptions = new BB.SessionOptions();
sessionOptions.ServerHost = "localhost";
sessionOptions.ServerPort = 8194;
if (requestCount > sessionOptions.MaxPendingRequests)
{
sessionOptions.MaxPendingRequests = requestCount;
}
UpdateStatus("Starting the Bloomberg session.");
session = new BB.Session(sessionOptions, new BB.EventHandler(processEvent));
if (session.Start())
{
if (!session.OpenService(uri))
{
throw new Exception("Bloomberg failed to open session " + uri);
}
return(true);
}
else
{
throw new Exception("An error occurred starting the Bloomberg session. Ensure Bloomberg is installed.");
}
}
/// <summary>
/// Initializes the SecurityLookup instance by creating a session and authorizing it so that its
/// ready to conduct searches. Once initialized multiple searches may be conducted with the same instance.
/// </summary>
public void Init()
{
try
{
SessionOptions sessionOptions = new SessionOptions();
sessionOptions.ServerHost = d_host;
sessionOptions.ServerPort = d_port;
sessionOptions.AuthenticationOptions = d_authOptions;
Console.WriteLine("Connecting to {0}:{1}", d_host, d_port);
session = new Session(sessionOptions);
if (!session.Start())
{
throw new Exception("Failed to start session");
}
identity = null;
if (d_authOptions != null)
{
Authorize(out identity, session);
}
if (!session.OpenService(INSTRUMENT_SERVICE))
{
throw new Exception(
string.Format("Failed to open: {0}", INSTRUMENT_SERVICE));
}
}
catch (Exception e)
{
Console.WriteLine(string.Format("Exception: {0}", e.Message));
Console.WriteLine();
}
}
/*****************************************************************************
* Function : IsBPipeAuthorized
* Description : This function authorize the token. A valid Identiy will contain
* the user/application credentials on authorization success.
* Returns false on failure.
* Arguments : token string from GenerateToken(), reference to Identity
* Returns : bool
*****************************************************************************/
private bool IsBPipeAuthorized(string token, out Identity identity)
{
bool isAuthorized = false;
bool isRunning = true;
identity = null;
if (!d_session.OpenService(AUTH_SVC))
{
System.Console.Error.WriteLine("Failed to open " + AUTH_SVC);
return(isAuthorized = false);
}
Service authService = d_session.GetService(AUTH_SVC);
Request authRequest = authService.CreateAuthorizationRequest();
authRequest.Set("token", token);
identity = d_session.CreateIdentity();
EventQueue authEventQueue = new EventQueue();
d_session.SendAuthorizationRequest(authRequest, identity, authEventQueue, new CorrelationID(1));
while (isRunning)
{
Event eventObj = authEventQueue.NextEvent();
System.Console.WriteLine("processEvent");
if (eventObj.Type == Event.EventType.RESPONSE || eventObj.Type == Event.EventType.REQUEST_STATUS)
{
foreach (Message msg in eventObj)
{
if (msg.MessageType == AUTHORIZATION_SUCCESS)
{
System.Console.WriteLine("Authorization SUCCESS");
isAuthorized = true;
isRunning = false;
break;
}
else if (msg.MessageType == AUTHORIZATION_FAILURE)
{
System.Console.WriteLine("Authorization FAILED");
System.Console.WriteLine(msg);
isRunning = false;
}
else
{
System.Console.WriteLine(msg);
}
}
}
}
return(isAuthorized);
}
public void Connect()
{
string serverHost = "api.bloomberg.com";
int serverPort = 0;
SessionOptions sessionOptions = new SessionOptions();
sessionOptions.ServerHost = serverHost;
sessionOptions.ServerPort = serverPort;
Log("Connecting to " + serverHost + ":" + serverPort);
session = new Session(sessionOptions);
bool sessionStarted = session.Start();
if (!sessionStarted)
{
throw new Exception("Failed to start Bloomberg API session.");
}
if (!session.OpenService("//blp/refdata"))
{
throw new Exception("Failed to open //blp/refdata");
}
this.service = session.GetService("//blp/refdata");
}
/// <summary>
/// Sets config and other session data to create the session
/// </summary>
/// <returns></returns>
private Session CreateBloombergSession()
{
// retrieves the appsettings and fills the config object
config = new BloombergApiSessionConfig();
var sessionOptions = new SessionOptions { ServerHost = config.BbHost, ServerPort = config.BbPort };
var session = new Session(sessionOptions);
if (!session.Start())
{
//_Logging.Error("Unable to initiate Bloomberg session.");
return null;
}
if (!session.OpenService(config.BbService))
{
//_Logging.Error("Unable to open Bloomberg service.");
return null;
}
return session;
}
/// <summary>
/// Authorize should be called before any requests are sent. Called by init.
/// </summary>
/// <param name="identity"></param>
/// <param name="session"></param>
private static void Authorize(out Identity identity, Session session)
{
identity = session.CreateIdentity();
if (!session.OpenService(AUTH_SERVICE))
{
throw new Exception(
string.Format("Failed to open auth service: {0}",
AUTH_SERVICE));
}
Service authService = session.GetService(AUTH_SERVICE);
EventQueue tokenEventQueue = new EventQueue();
session.GenerateToken(new CorrelationID(tokenEventQueue), tokenEventQueue);
string token = null;
// Generate token responses will come on the dedicated queue. There would be no other
// messages on that queue.
Event eventObj = tokenEventQueue.NextEvent(
Convert.ToInt32(WAIT_TIME.TotalMilliseconds));
if (eventObj.Type == Event.EventType.TOKEN_STATUS ||
eventObj.Type == Event.EventType.REQUEST_STATUS)
{
foreach (Message msg in eventObj)
{
System.Console.WriteLine(msg);
if (msg.MessageType == TOKEN_SUCCESS)
{
token = msg.GetElementAsString(TOKEN_ELEMENT);
}
}
}
if (token == null)
{
throw new Exception("Failed to get token");
}
Request authRequest = authService.CreateAuthorizationRequest();
authRequest.Set(TOKEN_ELEMENT, token);
session.SendAuthorizationRequest(authRequest, identity, null);
TimeSpan ts = WAIT_TIME;
for (DateTime startTime = DateTime.UtcNow;
ts.TotalMilliseconds > 0;
ts = ts - (DateTime.UtcNow - startTime))
{
eventObj = session.NextEvent(Convert.ToInt32(ts.TotalMilliseconds));
// Since no other requests were sent using the session queue, the response can
// only be for the Authorization request
if (eventObj.Type != Event.EventType.RESPONSE &&
eventObj.Type != Event.EventType.PARTIAL_RESPONSE &&
eventObj.Type != Event.EventType.REQUEST_STATUS)
{
continue;
}
foreach (Message msg in eventObj)
{
System.Console.WriteLine(msg);
if (msg.MessageType != AUTHORIZATION_SUCCESS)
{
throw new Exception("Authorization Failed");
}
}
return;
}
throw new Exception("Authorization Failed");
}
