Merge pull request #130 from ryanlewis/master

Method for requesting number of subscriptions

Author: oliemansm

src/main/java/graphql/servlet/GraphQLWebsocketServlet.java

@@ -181,4 +181,10 @@ private SubscriptionProtocolFactory getSubscriptionProtocolFactory(List<String>
     public int getSessionCount() {
         return sessionSubscriptionCache.size();
     }
+
+    public int getSubscriptionCount() {
+        return sessionSubscriptionCache.values().stream()
+                .mapToInt(subscriptions -> subscriptions.getSubscriptionCount())
+                .sum();
+    }
 }

src/main/java/graphql/servlet/internal/WsSessionSubscriptions.java

@@ -50,4 +50,6 @@ public void close() {
     private String getImplicitId(Subscription subscription) {
         return String.valueOf(subscription.hashCode());
     }
+
+    public int getSubscriptionCount() { return subscriptions.size(); }
 }