private void createSubscriptions()
{
mamaSource = new MamaSource();
mamaSource.symbolNamespace = mamaSourceName;
mamaSource.transport = mamaTransport;
for (int i = 0; i < mamaNumSymbols; i++)
{
mamaSubscriptions[i] = new MamaSubscription();
mamaSubscriptions[i].setServiceLevel(mamaServiceLevel.MAMA_SERVICE_LEVEL_REAL_TIME);
mamaSubscriptions[i].setSubscriptionType(mamaSubscriptionType.MAMA_SUBSC_TYPE_NORMAL);
mamaSubscriptions[i].setTimeout(10);
mamaSubscriptions[i].setRetries(3);
mamaSubscriptions[i].setRequiresInitial(true);
mamaSubscriptions[i].create(
mamaQueueGroup == null ? mamaDefaultQueue : mamaQueueGroup.getNextQueue(),
this,
mamaSource,
mamaSymbols[i]);
}
}
private static void subscribeToSubjects()
{
int howMany = 0;
queueGroup = new MamaQueueGroup(myBridge, numThreads);
/* Subscribe to all symbols parsed from the symbol list */
for (IEnumerator enumerator = subjectList.GetEnumerator(); enumerator.MoveNext();)
{
string symbol = (string)enumerator.Current;
MamaSubscription subscription = new MamaSubscription();
subscription.create(
queueGroup.getNextQueue(),
subscriptionCallback,
mySource,
symbol,
null);
subscriptions.Add(subscription);
if (++howMany % 1000 == 0)
{
Console.WriteLine("Subscribed to " + howMany + " symbols.");
}
}
}
/// <summary>
/// This function will create subscriptions for all the symbols in the array list.
/// </summary>
private void createSubscriptions()
{
// There must be at least 1 symbol
if (m_symbols.Count < 1)
{
throw new ApplicationException("There are no symbols to subscribe to.");
}
ListenerSubscriptionCallback subscriptionCallback = new ListenerSubscriptionCallback(m_dictionary, m_iterator, m_quietness, m_symbols.Count);
// Enumerate all the symbol names and create a subscription for each one
foreach (string symbol in m_symbols)
{
MamaSubscription subscription = new MamaSubscription();
// Set the service level depending on whether we need a snapshot subscription or not
if (m_snapshot)
{
subscription.setServiceLevel(mamaServiceLevel.MAMA_SERVICE_LEVEL_SNAPSHOT);
}
else
{
subscription.setServiceLevel(mamaServiceLevel.MAMA_SERVICE_LEVEL_REAL_TIME);
}
// Complete the remaining properties
subscription.setSubscriptionType(mamaSubscriptionType.MAMA_SUBSC_TYPE_NORMAL);
subscription.setTimeout(10);
subscription.setRetries(3);
subscription.setRequiresInitial(true);
/* Determine the queue to use, if there are multiple threads running then the next queue in the
* group will be acquired.
*/
MamaQueue queue = m_defaultQueue;
if (m_queueGroup != null)
{
queue = m_queueGroup.getNextQueue();
}
subscription.create(queue, subscriptionCallback, m_source, symbol);
// Add the subscription to the array list so that they can all be destroyed later on
m_subscriptions.Add(subscription);
}
}
private void createQueues()
{
mamaDefaultQueue = Mama.getDefaultEventQueue(mamaBridge);
mamaQueueGroup = new MamaQueueGroup(mamaBridge, mamaThreads);
if (mamaThreads > 0)
{
// Has queue monitoring been enabled?
if (mamaHighWaterMark > 0 || mamaLowWaterMark > 0)
{
for (int index = 0; index < mamaThreads; index++)
{
MamaQueue queue = mamaQueueGroup.getNextQueue();
string queueName = "QUEUE " + index;
Console.WriteLine("Setting monitor for " + queueName);
queue.setQueueMonitorCallbacks(this, queueName);
if (mamaHighWaterMark > 0)
{
queue.setHighWatermark(mamaHighWaterMark);
}
if (mamaLowWaterMark > 0)
{
try
{
// Not supported on all middlewares.
queue.setLowWatermark(mamaLowWaterMark);
}
catch (Exception e)
{
Console.WriteLine("Could not set " + queueName + " queue low water mark MamaStatus: " + e);
}
}
}
}
}
}
/// <summary>
/// Queues will be created if the user has specified a number of threads to be
/// used, otherwise the default queue will be used.
/// </summary>
private void createQueues()
{
// Only continue if the number of threads required is greater than 0
if (m_numberThreads > 0)
{
m_queueGroup = new MamaQueueGroup(m_bridge, m_numberThreads);
if ((m_highWaterMark > 0) || (m_lowWaterMark > 0))
{
ListenerQueueCallback queueCallback = new ListenerQueueCallback();
// Install the callback on each queue
for (int index = 0; index < m_numberThreads; index++)
{
MamaQueue queue = m_queueGroup.getNextQueue();
string queueName = ("QUEUE " + index);
Console.WriteLine("Setting monitor for " + queueName);
// Install the callbacks
queue.setQueueMonitorCallbacks(queueCallback, queueName);
// Set the watermarks at which the callbacks are invoked
if (m_highWaterMark > 0)
{
queue.setHighWatermark(m_highWaterMark);
}
if (m_lowWaterMark > 0)
{
// Not supported on all middlewares.
queue.setLowWatermark(m_lowWaterMark);
}
}
}
}
}
static void Main(string[] args)
{
MamaTransport transport = null;
MamaQueue defaultQueue = null;
MamaDictionary dictionary = null;
CommandLineProcessor options = new CommandLineProcessor(args);
myQuietModeLevel = options.getQuietModeLevel();
if (options.hasLogLevel())
{
myLogLevel = options.getLogLevel();
Mama.enableLogging(myLogLevel);
}
try
{
//Initialize MAMA API
myBridge = new MamaBridge(options.getMiddleware());
Mama.open();
transport = new MamaTransport();
transport.create(options.getTransport(), myBridge);
defaultQueue = Mama.getDefaultEventQueue(myBridge);
myMamaSource = new MamaSource();
//Get the Data dictionary.....
MamaSource dictionarySource = new MamaSource();
dictionarySource.symbolNamespace = "WOMBAT";
dictionarySource.transport = transport;
dictionary = buildDataDictionary(transport, defaultQueue, dictionarySource);
MamdaQuoteFields.setDictionary(dictionary, null);
MamdaTradeFields.setDictionary(dictionary, null);
MamdaCommonFields.setDictionary(dictionary, null);
MamdaOrderBookFields.setDictionary(dictionary, null);
myQueueGroup = new MamaQueueGroup(myBridge, options.getNumThreads());
foreach (string symbol in options.getSymbolList())
{
MamdaSubscription aSubscription = new MamdaSubscription();
MamdaBookAtomicListener aBookListener = new MamdaBookAtomicListener();
AtomicBookTicker aTicker = new AtomicBookTicker();
aBookListener.addBookHandler(aTicker);
aBookListener.addLevelHandler(aTicker);
if (options.getPrintEntries())
{ // Entries
aBookListener.addLevelEntryHandler(aTicker);
}
aSubscription.addMsgListener(aBookListener);
aSubscription.addStaleListener(aTicker);
aSubscription.addErrorListener(aTicker);
aSubscription.setType(mamaSubscriptionType.MAMA_SUBSC_TYPE_BOOK);
aSubscription.create(transport,
myQueueGroup.getNextQueue(),
options.getSource(),
symbol,
null);
mamdaSubscriptions.Add(aSubscription);
}
//Start dispatching on the default MAMA event queue
Console.WriteLine("Hit Enter or Ctrl-C to exit.");
Mama.start(myBridge);
GC.KeepAlive(dictionary);
Console.ReadLine();
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
Environment.Exit(1);
}
}
static void Main(string[] args)
{
MamaTransport transport = null;
MamaQueue defaultQueue = null;
MamaDictionary dictionary = null;
CommandLineProcessor options = new CommandLineProcessor (args);
myQuietModeLevel = options.getQuietModeLevel ();
if (options.hasLogLevel ())
{
myLogLevel = options.getLogLevel ();
Mama.enableLogging (myLogLevel);
}
try
{
//Initialize MAMA API
myBridge = new MamaBridge (options.getMiddleware());
Mama.open();
transport = new MamaTransport();
transport.create(options.getTransport(), myBridge);
defaultQueue = Mama.getDefaultEventQueue(myBridge);
myMamaSource = new MamaSource ();
//Get the Data dictionary.....
MamaSource dictionarySource = new MamaSource ();
dictionarySource.symbolNamespace = "WOMBAT";
dictionarySource.transport = transport;
dictionary = buildDataDictionary(transport, defaultQueue, dictionarySource);
MamdaQuoteFields.setDictionary (dictionary, null);
MamdaTradeFields.setDictionary (dictionary, null);
MamdaCommonFields.setDictionary (dictionary, null);
MamdaOrderBookFields.setDictionary (dictionary, null);
myQueueGroup = new MamaQueueGroup (myBridge, options.getNumThreads());
foreach (string symbol in options.getSymbolList())
{
MamdaSubscription aSubscription = new MamdaSubscription ();
MamdaBookAtomicListener aBookListener = new MamdaBookAtomicListener();
AtomicBookTicker aTicker = new AtomicBookTicker ();
aBookListener.addBookHandler (aTicker);
aBookListener.addLevelHandler (aTicker);
if (options.getPrintEntries())
{ // Entries
aBookListener.addLevelEntryHandler (aTicker);
}
aSubscription.addMsgListener (aBookListener);
aSubscription.addStaleListener (aTicker);
aSubscription.addErrorListener (aTicker);
aSubscription.setType(mamaSubscriptionType.MAMA_SUBSC_TYPE_BOOK);
aSubscription.create (transport,
myQueueGroup.getNextQueue(),
options.getSource (),
symbol,
null);
mamdaSubscriptions.Add(aSubscription);
}
//Start dispatching on the default MAMA event queue
Console.WriteLine("Hit Enter or Ctrl-C to exit.");
Mama.start (myBridge);
GC.KeepAlive(dictionary);
Console.ReadLine();
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
Environment.Exit(1);
}
}