Adding the SubscriptionHub interface and making the SubcriptionMessageHub implement it

.gitignore

@@ -78,4 +78,5 @@ atlassian-ide-plugin.xml
 
 src/main/java/com/luminiasoft/bitshares/mycelium/*
 
-bts_bilthon_20161218.bin
+# Ignore bin backups
+*.bin

src/main/java/de/bitsharesmunich/graphenej/api/SubscriptionMessagesHub.java

@@ -11,6 +11,7 @@ import de.bitsharesmunich.graphenej.AssetAmount;
 import de.bitsharesmunich.graphenej.RPC;
 import de.bitsharesmunich.graphenej.Transaction;
 import de.bitsharesmunich.graphenej.TransferOperation;
+import de.bitsharesmunich.graphenej.interfaces.SubscriptionHub;
 import de.bitsharesmunich.graphenej.interfaces.SubscriptionListener;
 import de.bitsharesmunich.graphenej.models.ApiCall;
 import de.bitsharesmunich.graphenej.models.BaseResponse;
@@ -28,7 +29,7 @@ import java.util.Map;
  *
  * Created by nelson on 1/26/17.
  */
-public class SubscriptionMessagesHub extends WebSocketAdapter {
+public class SubscriptionMessagesHub extends WebSocketAdapter implements SubscriptionHub {
     // Sequence of message ids
     private final static int LOGIN_ID = 1;
     private final static int GET_DATABASE_ID = 2;
@@ -56,12 +57,19 @@ public class SubscriptionMessagesHub extends WebSocketAdapter {
         this.gson = builder.create();
     }
 
+    @Override
     public void addSubscriptionListener(SubscriptionListener listener){
         this.mSubscriptionDeserializer.addSubscriptionListener(listener);
     }
 
+    @Override
     public void removeSubscriptionListener(SubscriptionListener listener){
-        this.removeSubscriptionListener(listener);
+        this.mSubscriptionDeserializer.removeSubscriptionListener(listener);
+    }
+
+    @Override
+    public List<SubscriptionListener> getSubscriptionListeners() {
+        return this.mSubscriptionDeserializer.getSubscriptionListeners();
     }
 
     @Override

src/main/java/de/bitsharesmunich/graphenej/interfaces/SubscriptionHub.java

@@ -0,0 +1,30 @@
+package de.bitsharesmunich.graphenej.interfaces;
+
+import java.util.List;
+
+/**
+ * Interface to be implemented by any class that hosts a SubscriptionResponseDeserializer and wants to
+ * expose an interface for its management of its listeners.
+ *
+ * Created by nelson on 1/30/17.
+ */
+public interface SubscriptionHub {
+
+    /**
+     * Adds a given listener to the list of subscription listeners.
+     * @param listener: The SubscriptionListener to add.
+     */
+    void addSubscriptionListener(SubscriptionListener listener);
+
+    /**
+     * Removes a given listener from the list.
+     * @param listener: The SubscriptionListener to remove.
+     */
+    void removeSubscriptionListener(SubscriptionListener listener);
+
+    /**
+     * Retrieves a list of all subscription listeners.
+     * @return
+     */
+    List<SubscriptionListener> getSubscriptionListeners();
+}