Added support for the newly created 'get_all_asset_holders' API call, part of the 'asset' API

src/main/java/de/bitsharesmunich/graphenej/Main.java

@@ -72,6 +72,7 @@ public class Main {
 //        test.testGetTradeHistory();
 //        test.testAssetSerialization();
 //        test.testGetMarketHistory();
-        test.testGetAccountBalances();
+//        test.testGetAccountBalances();
+        test.testGetAssetHoldersCount();
     }
 }

src/main/java/de/bitsharesmunich/graphenej/RPC.java

@@ -9,6 +9,7 @@ public class RPC {
     public static final String CALL_NETWORK_BROADCAST = "network_broadcast";
     public static final String CALL_HISTORY = "history";
     public static final String CALL_DATABASE = "database";
+    public static final String CALL_ASSET = "asset";
     public static final String CALL_GET_ACCOUNT_BY_NAME = "get_account_by_name";
     public static final String CALL_GET_ACCOUNTS = "get_accounts";
     public static final String CALL_GET_DYNAMIC_GLOBAL_PROPERTIES = "get_dynamic_global_properties";
@@ -25,4 +26,5 @@ public class RPC {
     public static final String CALL_GET_LIMIT_ORDERS = "get_limit_orders";
     public static final String CALL_GET_TRADE_HISTORY = "get_trade_history";
     public static final String CALL_GET_MARKET_HISTORY = "get_market_history";
+    public static final String CALL_GET_ALL_ASSET_HOLDERS = "get_all_asset_holders";
 }

src/main/java/de/bitsharesmunich/graphenej/Test.java

@@ -14,6 +14,7 @@ import de.bitsharesmunich.graphenej.test.NaiveSSLContext;
 import com.neovisionaries.ws.client.*;
 import de.bitsharesmunich.graphenej.api.*;
 import org.bitcoinj.core.*;
+import org.spongycastle.asn1.x509.Holder;
 import org.spongycastle.crypto.digests.RIPEMD160Digest;
 
 import javax.net.ssl.SSLContext;
@@ -33,6 +34,7 @@ import java.util.logging.Logger;
  */
 public class Test {
 
+    public static final String AMAZON_WITNESS = "ws://54.91.97.99:8090";
     public static final String WITNESS_URL = "api://api.devling.xyz:8088";
     public static final String OPENLEDGER_WITNESS_URL = "wss://bitshares.openledger.info/api";
     public static final String BLOCK_PAY_DE = "wss://de.blockpay.ch:8089";
@@ -1180,4 +1182,43 @@ public class Test {
             System.out.println("IOException. Msg: " + e.getMessage());
         }
     }
+
+    public void testGetAssetHoldersCount(){
+        SSLContext context = null;
+
+        WitnessResponseListener listener = new WitnessResponseListener() {
+            @Override
+            public void onSuccess(WitnessResponse response) {
+                System.out.println("onSuccess");
+                List<HoldersCount> holdersCountList = (List<HoldersCount>) response.result;
+                for(HoldersCount holdersCount : holdersCountList){
+                    System.out.println(String.format("Asset %s has %d holders", holdersCount.asset.getObjectId(), holdersCount.count));
+                }
+            }
+
+            @Override
+            public void onError(BaseResponse.Error error) {
+                System.out.println("onError");
+            }
+        };
+
+        try {
+            context = NaiveSSLContext.getInstance("TLS");
+            WebSocketFactory factory = new WebSocketFactory();
+
+            // Set the custom SSL context.
+            factory.setSSLContext(context);
+
+            WebSocket mWebSocket = factory.createSocket(AMAZON_WITNESS);
+
+            mWebSocket.addListener(new GetAllAssetHolders(listener));
+            mWebSocket.connect();
+        } catch (NoSuchAlgorithmException e) {
+            System.out.println("NoSuchAlgorithmException. Msg: " + e.getMessage());
+        } catch (WebSocketException e) {
+            System.out.println("WebSocketException. Msg: " + e.getMessage());
+        } catch (IOException e) {
+            System.out.println("IOException. Msg: " + e.getMessage());
+        }
+    }
 }

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

@@ -1,7 +1,84 @@
 package de.bitsharesmunich.graphenej.api;
 
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.reflect.TypeToken;
+import com.neovisionaries.ws.client.WebSocket;
+import com.neovisionaries.ws.client.WebSocketFrame;
+import de.bitsharesmunich.graphenej.RPC;
+import de.bitsharesmunich.graphenej.interfaces.WitnessResponseListener;
+import de.bitsharesmunich.graphenej.models.*;
+
+import java.io.Serializable;
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
 /**
  * Created by nelson on 1/25/17.
  */
-public class GetAllAssetHolders {
+public class GetAllAssetHolders extends BaseGrapheneHandler {
+    private final static int LOGIN_ID = 1;
+    private final static int GET_ASSET_API_ID = 2;
+    private final static int GET_ALL_ASSET_HOLDERS_COUNT = 3;
+
+    private int currentId = 1;
+    private int assetApiId = -1;
+
+    public GetAllAssetHolders(WitnessResponseListener listener) {
+        super(listener);
+    }
+
+    @Override
+    public void onConnected(WebSocket websocket, Map<String, List<String>> headers) throws Exception {
+        ArrayList<Serializable> loginParams = new ArrayList<>();
+        loginParams.add(null);
+        loginParams.add(null);
+        ApiCall loginCall = new ApiCall(1, RPC.CALL_LOGIN, loginParams, RPC.VERSION, currentId);
+        websocket.sendText(loginCall.toJsonString());
+    }
+
+    @Override
+    public void onTextFrame(WebSocket websocket, WebSocketFrame frame) throws Exception {
+        if(frame.isTextFrame())
+            System.out.println("<<< "+frame.getPayloadText());
+        String response = frame.getPayloadText();
+        Gson gson = new Gson();
+        BaseResponse baseResponse = gson.fromJson(response, BaseResponse.class);
+        if(baseResponse.error != null){
+            mListener.onError(baseResponse.error);
+            websocket.disconnect();
+        }else {
+            currentId++;
+            ArrayList<Serializable> emptyParams = new ArrayList<>();
+            if (baseResponse.id == LOGIN_ID) {
+                ApiCall networkApiIdCall = new ApiCall(1, RPC.CALL_ASSET, emptyParams, RPC.VERSION, currentId);
+                websocket.sendText(networkApiIdCall.toJsonString());
+            }else if(baseResponse.id == GET_ASSET_API_ID){
+                Type ApiIdResponse = new TypeToken<WitnessResponse<Integer>>() {}.getType();
+                WitnessResponse<Integer> witnessResponse = gson.fromJson(response, ApiIdResponse);
+                assetApiId = witnessResponse.result;
+
+                ApiCall apiCall = new ApiCall(assetApiId, RPC.CALL_GET_ALL_ASSET_HOLDERS, emptyParams, RPC.VERSION, currentId);
+                websocket.sendText(apiCall.toJsonString());
+            } else if (baseResponse.id == GET_ALL_ASSET_HOLDERS_COUNT) {
+                Type AssetTokenHolders = new TypeToken<WitnessResponse<List<HoldersCount>>>(){}.getType();
+                GsonBuilder builder = new GsonBuilder();
+                builder.registerTypeAdapter(HoldersCount.class, new HoldersCount.HoldersCountDeserializer());
+                WitnessResponse<List<HoldersCount>> witnessResponse = builder.create().fromJson(response, AssetTokenHolders);
+                mListener.onSuccess(witnessResponse);
+                websocket.disconnect();
+            }else{
+                System.out.println("current id: "+currentId);
+            }
+        }
+    }
+
+    @Override
+    public void onFrameSent(WebSocket websocket, WebSocketFrame frame) throws Exception {
+        if(frame.isTextFrame()){
+            System.out.println(">>> "+frame.getPayloadText());
+        }
+    }
 }

src/main/java/de/bitsharesmunich/graphenej/models/HoldersCount.java

@@ -1,7 +1,29 @@
 package de.bitsharesmunich.graphenej.models;
 
+import com.google.gson.*;
+import de.bitsharesmunich.graphenej.Asset;
+
+import java.lang.reflect.Type;
+
 /**
  * Created by nelson on 1/25/17.
  */
 public class HoldersCount {
+    public static final String KEY_ASSET_ID = "asset_id";
+    public static final String KEY_COUNT = "count";
+
+    public Asset asset;
+    public long count;
+
+    public static class HoldersCountDeserializer implements JsonDeserializer<HoldersCount> {
+
+        @Override
+        public HoldersCount deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
+            JsonObject jsonObject = json.getAsJsonObject();
+            HoldersCount holdersCount = new HoldersCount();
+            holdersCount.asset = new Asset(jsonObject.get(KEY_ASSET_ID).getAsString());
+            holdersCount.count = jsonObject.get(KEY_COUNT).getAsLong();
+            return holdersCount;
+        }
+    }
 }