Adding node hopping capabilities to the NodeConnection class along with some tests

graphenej/src/main/java/cy/agorise/graphenej/api/android/NodeConnection.java

@@ -67,8 +67,7 @@ public class NodeConnection {
      * @param urlList: List of URLs of the nodes
      */
     public void addNodeUrls(List<String> urlList){
-        List<String> newList = new ArrayList<String>(mUrlList);
+        mUrlList.addAll(urlList);
-        newList.addAll(urlList);
     }
 
     /**
@@ -91,7 +90,7 @@ public class NodeConnection {
         @Override
         public void onError(BaseResponse.Error error) {
             System.out.println("NodeConnect Error. Msg: "+error);
-
+            mUrlIndex++;
             connect(mUser, mPassword, mSubscribe, mErrorListener);
         }
     };
@@ -114,18 +113,23 @@ public class NodeConnection {
      *                          about the failure of the desired broadcast operation.
      */
     public void connect(String user, String password, boolean subscribe, WitnessResponseListener errorListener) {
-        if(this.mUrlList.size() > 0){
+        if(mUrlList.size() > 0){
-            mUser = user;
+            if(mUrlIndex < mUrlList.size()){
-            mPassword = password;
+                System.out.println("Connecting to: "+ this.mUrlList.get(mUrlIndex));
-            mSubscribe = subscribe;
+                mUser = user;
-            System.out.println("Connecting to: "+ this.mUrlList.get(mUrlIndex));
+                mPassword = password;
-            mErrorListener = errorListener;
+                mSubscribe = subscribe;
-            mThread = new WebsocketWorkerThread(this.mUrlList.get(mUrlIndex), mInternalErrorListener);
+                mErrorListener = errorListener;
-            mUrlIndex = mUrlIndex + 1 % this.mUrlList.size();
+                mThread = new WebsocketWorkerThread(this.mUrlList.get(mUrlIndex), mInternalErrorListener);
 
-            mMessagesHub = new SubscriptionMessagesHub(user, password, subscribe, mInternalErrorListener);
+                mMessagesHub = new SubscriptionMessagesHub(user, password, subscribe, mInternalErrorListener);
-            mThread.addListener(mMessagesHub);
+                mThread.addListener(mMessagesHub);
-            mThread.start();
+                mThread.start();
+            }else{
+                errorListener.onError(new BaseResponse.Error("Can't connect, ran out of URLs!"));
+            }
+        }else{
+            errorListener.onError(new BaseResponse.Error("Can't connect, missing URL"));
         }
     }
 

graphenej/src/main/java/cy/agorise/graphenej/api/android/WebsocketWorkerThread.java

@@ -63,6 +63,7 @@ public class WebsocketWorkerThread extends Thread {
      *                          about the failure of the connection.
      */
     public WebsocketWorkerThread(String url, NodeErrorListener errorListener){
+        mErrorListener = errorListener;
         try {
             WebSocketFactory factory = new WebSocketFactory().setConnectionTimeout(TIMEOUT);
 
@@ -74,13 +75,18 @@ public class WebsocketWorkerThread extends Thread {
             }
 
             mWebSocket = factory.createSocket(url);
-            mErrorListener = errorListener;
         } catch (IOException e) {
             System.out.println("IOException. Msg: "+e.getMessage());
+            mErrorListener.onError(new BaseResponse.Error(e.getMessage()));
         } catch(NullPointerException e){
             System.out.println("NullPointerException at WebsocketWorkerThreas. Msg: "+e.getMessage());
+            mErrorListener.onError(new BaseResponse.Error(e.getMessage()));
         } catch (NoSuchAlgorithmException e) {
             System.out.println("NoSuchAlgorithmException. Msg: "+e.getMessage());
+            mErrorListener.onError(new BaseResponse.Error(e.getMessage()));
+        } catch(IllegalArgumentException e){
+            System.out.println("IllegalArgumentException. Msg: "+e.getMessage());
+            mErrorListener.onError(new BaseResponse.Error(e.getMessage()));
         }
     }
 

graphenej/src/test/java/cy/agorise/graphenej/api/android/NodeConnectionTest.java

@@ -58,17 +58,20 @@ public class NodeConnectionTest {
     private String NODE_URL_3 = System.getenv("NODE_URL_3");
     private String NODE_URL_4 = System.getenv("NODE_URL_4");
     private String TEST_ACCOUNT_BRAIN_KEY = System.getenv("TEST_ACCOUNT_BRAIN_KEY");
-    private String ACCOUNT_ID_1 = System.getenv("ACCOUNT_ID_1");
+    private String ACCOUNT_ID_1 = "1.2.140994";
-    private String ACCOUNT_ID_2 = System.getenv("ACCOUNT_ID_2");
+    private String ACCOUNT_ID_2 = "1.2.138632";
-    private String ACCOUNT_NAME = System.getenv("ACCOUNT_NAME");
+    private String ACCOUNT_NAME = "bilthon-7";
-    private long BlOCK_TEST_NUMBER = Long.parseLong(System.getenv("BlOCK_TEST_NUMBER"));
+    private long BlOCK_TEST_NUMBER = 11000000;
     private Asset BTS = new Asset("1.3.0");
     private Asset BLOCKPAY = new Asset("1.3.1072");
     private Asset BITDOLAR = new Asset("1.3.121"); //USD Smartcoin
     private Asset BITEURO = new Asset("1.3.120"); //EUR Smartcoin
     private NodeConnection nodeConnection;
 
-    private TimerTask scheduleTask = new TimerTask() {
+    /**
+     * Sample task to be scheduled
+     */
+    private TimerTask getAccountsTask = new TimerTask() {
         @Override
         public void run() {
             System.out.println("Adding request here");
@@ -91,6 +94,9 @@ public class NodeConnectionTest {
         }
     };
 
+    /**
+     * Task that will release the worker thread, effectively terminating this test
+     */
     private TimerTask releaseTask = new TimerTask() {
         @Override
         public void run() {
@@ -103,12 +109,13 @@ public class NodeConnectionTest {
 
     @Test
     public void testNodeConnection(){
+        System.out.println("** Testing simple node connection **");
         nodeConnection = NodeConnection.getInstance();
         nodeConnection.addNodeUrl(NODE_URL_1);
         nodeConnection.connect("", "", true, mErrorListener);
 
         Timer timer = new Timer();
-        timer.schedule(scheduleTask, 5000);
+        timer.schedule(getAccountsTask, 5000);
         timer.schedule(releaseTask, 30000);
 
         try{
@@ -121,30 +128,29 @@ public class NodeConnectionTest {
         }
     }
 
-    @Test
     /**
      * Test for NodeConnection's addNodeUrl and addNodeUrls working together.
      *
-     * Need to setup the NODE_URL_(1 to 4) env to work. Some of the nodes may have invalid nodes
+     * Need to setup the NODE_URL_2 env to work. The first hard-coded URL is wrong and will
-     * websockets URL just to test the hop.
+     * fail. The NodeConnection instance should recover and try the next one in the list.
      *
      */
+    @Test
     public void testNodeHopFeature(){
+        System.out.println("** Testing node hopping **");
         nodeConnection = NodeConnection.getInstance();
-        //nodeConnection.addNodeUrl(NODE_URL_4);
+
         //Test adding a "sublist"
         ArrayList<String> urlList = new ArrayList<String>(){{
-            add(NODE_URL_3);
+            add("wss://eu.openledger.info/wrong");
-            add(NODE_URL_3);
+            add(NODE_URL_2);
         }};
-        //nodeConnection.addNodeUrls(urlList);
+        nodeConnection.addNodeUrls(urlList);
-        nodeConnection.addNodeUrl(NODE_URL_1);
 
         nodeConnection.connect("", "", true, mErrorListener);
 
         Timer timer = new Timer();
-        timer.schedule(scheduleTask, 5000);
+        timer.schedule(releaseTask, 15000);
-        timer.schedule(releaseTask, 30000);
 
         try{
             // Holding this thread while we get update notifications