Introducing initial support for the 'get_objects' API call

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

@@ -147,6 +147,7 @@ public class Converter {
         MathContext mathContext = new MathContext(Math.max(base.getPrecision(), quote.getPrecision()));
         BigDecimal baseValue = BigDecimal.valueOf(price.base.getAmount().longValue());
         BigDecimal quoteValue = BigDecimal.valueOf(price.quote.getAmount().doubleValue());
+//        System.out.println(String.format("base: %d, quote: %d", baseValue.longValue(), quoteValue.longValue()));
         if(direction == BASE_TO_QUOTE){
             conversionRate = quoteValue.divide(baseValue, mathContext).doubleValue();
             precisionFactor = Math.pow(10, base.getPrecision()) / Math.pow(10, quote.getPrecision());
@@ -154,6 +155,7 @@ public class Converter {
             conversionRate = baseValue.divide(quoteValue, mathContext).doubleValue();
             precisionFactor = Math.pow(10, quote.getPrecision()) / Math.pow(10, base.getPrecision());
         }
+//        System.out.println(String.format("conversion rate: %.4f, precision factor: %.2f", conversionRate, precisionFactor));
         return conversionRate * precisionFactor;
     }
 }

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

@@ -65,9 +65,10 @@ public class Main {
 //        test.testDecodeMemo();
 //        test.testGetRelativeAccountHistory();
 //        test.testLookupAssetSymbols();
-        test.testListAssets();
+//        test.testListAssets();
+        test.testGetObjects();
 //        test.testGetBlockHeader();
-        //test.testGetLimitOrders();
+//        test.testGetLimitOrders();
 //        test.testGetTradeHistory();
 //        test.testAssetSerialization();
 //        test.testGetMarketHistory();

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

@@ -1,5 +1,12 @@
 package de.bitsharesmunich.graphenej;
 
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParseException;
+
+import java.lang.reflect.Type;
+
 /**
  * The price struct stores asset prices in the Graphene system.
  *

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

@@ -18,6 +18,7 @@ public class RPC {
     public static final String CALL_GET_RELATIVE_ACCOUNT_HISTORY = "get_relative_account_history";
     public static final String CALL_LOOKUP_ACCOUNTS = "lookup_accounts";
     public static final String CALL_LIST_ASSETS = "list_assets";
+    public static final String GET_OBJECTS = "get_objects";
     public static final String CALL_LOOKUP_ASSET_SYMBOLS = "lookup_asset_symbols";
     public static final String CALL_GET_BLOCK_HEADER = "get_block_header";
     public static final String CALL_GET_LIMIT_ORDERS = "get_limit_orders";

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

@@ -24,6 +24,7 @@ import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.security.NoSuchAlgorithmException;
 import java.util.*;
+import java.util.concurrent.TimeUnit;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
@@ -602,7 +603,7 @@ public class Test {
     }
 
     public void testingInvoiceGeneration() {
-        Invoice.LineItem[] lineItem = new Invoice.LineItem[]{new Invoice.LineItem("Apples", 2, "20 CSD")};
+        LineItem[] lineItem = new LineItem[]{new LineItem("Apples", 2, 2.00)};
         Invoice invoice = new Invoice("bilthon-83", "Bilthon's store", "Invoice #12", "BTS", lineItem, "Thank you", "");
         String qrCodeData = Invoice.toQrCode(invoice);
         System.out.println("qrCodeData");
@@ -862,10 +863,16 @@ public class Test {
                 System.out.println("onSuccess");
                 List<Asset> resp = (List<Asset>) response.result;
                 System.out.println(String.format("Got %d assets", resp.size()));
+                int count = 0;
                 for(Asset asset : resp){
-                    if(asset.isSmartcoin())
+                    if(asset.getBitassetId() != null){
-                        System.out.println("Asset: "+asset.getObjectId()+", Symbol: "+asset.getSymbol());
+                        System.out.println("Asset: " + asset.getObjectId() +
+                                ", Symbol: "+asset.getSymbol() +
+                                ", bitasset id: "+asset.getBitassetId());
+                        count++;
+                    }
                 }
+                System.out.println("Got "+count+" smartcoins");
             }
 
             @Override
@@ -896,6 +903,48 @@ public class Test {
         }
     }
 
+    public void testGetObjects(){
+        WitnessResponseListener listener = new WitnessResponseListener() {
+            @Override
+            public void onSuccess(WitnessResponse response) {
+                System.out.println("onSuccess");
+                List<BitAssetData> bitAssetDataArray = (List<BitAssetData>) response.result;
+                for(BitAssetData bitAssetData : bitAssetDataArray){
+//                    System.out.println(String.format("is prediction market: %b", bitAssetData.is_prediction_market));
+                    System.out.println("base: "+bitAssetData.current_feed.core_exchange_rate.base.getAmount().longValue());
+                    System.out.println("quote: "+bitAssetData.current_feed.core_exchange_rate.quote.getAmount().longValue());
+                }
+            }
+
+            @Override
+            public void onError(BaseResponse.Error error) {
+                System.out.println("onError");
+            }
+        };
+
+        SSLContext context = null;
+        try {
+            context = NaiveSSLContext.getInstance("TLS");
+            WebSocketFactory factory = new WebSocketFactory();
+
+            // Set the custom SSL context.
+            factory.setSSLContext(context);
+
+            WebSocket mWebSocket = factory.createSocket(BLOCK_PAY_DE);
+
+            ArrayList<String> ids = new ArrayList<>();
+            ids.add("2.4.54");
+            mWebSocket.addListener(new GetObjects(ids, 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());
+        }
+    }
+
     public void testGetBlockHeader(){
         WitnessResponseListener listener = new WitnessResponseListener() {
             @Override
@@ -943,20 +992,24 @@ public class Test {
 
             WebSocket mWebSocket = factory.createSocket(BLOCK_PAY_DE);
 
-            mWebSocket.addListener(new GetLimitOrders("1.3.562", "1.3.0", 100, new WitnessResponseListener() {
+            Asset base = new Asset("1.3.120", "EUR", 4);
+            Asset quote = new Asset("1.3.121", "USD", 4);
+
+            mWebSocket.addListener(new GetLimitOrders(base.getObjectId(), quote.getObjectId(), 100, new WitnessResponseListener() {
                 @Override
                 public void onSuccess(WitnessResponse response) {
                     List<LimitOrder> orders = (List<LimitOrder>) response.result;
+                    Converter converter = new Converter();
+                    System.out.println();
                     for(LimitOrder order : orders){
-                        System.out.println(String.format("OBITS: %d, BTS: %d", order.sell_price.base.getAmount().longValue(), order.sell_price.quote.getAmount().longValue()));
+//                        System.out.println(String.format("base: %d, quote: %d",
-                        double price = (((double) order.sell_price.quote.getAmount().longValue()) / ((double) order.sell_price.base.getAmount().longValue()));
+//                                order.sell_price.base.getAmount().longValue(),
-                        System.out.println(String.format("Selling %s for %s at %f %s/%s, expiration: %s",
+//                                order.sell_price.quote.getAmount().longValue()));
-                                order.sell_price.base.getAsset().getObjectId(),
+                        order.sell_price.base.getAsset().setPrecision(base.getPrecision());
-                                order.sell_price.quote.getAsset().getObjectId(),
+                        order.sell_price.quote.getAsset().setPrecision(quote.getPrecision());
-                                price,
+                        double baseToQuoteExchange = converter.getConversionRate(order.sell_price, Converter.BASE_TO_QUOTE);
-                                order.sell_price.base.getAsset().getObjectId(),
+                        double quoteToBaseExchange = converter.getConversionRate(order.sell_price, Converter.QUOTE_TO_BASE);
-                                order.sell_price.quote.getAsset().getObjectId(),
+                        System.out.println(String.format("base to quote: %.5f, quote to base: %.5f", baseToQuoteExchange, quoteToBaseExchange));
-                                order.expiration));
                     }
                 }
 
@@ -1056,7 +1109,7 @@ public class Test {
 
             WebSocket mWebSocket = factory.createSocket(BLOCK_PAY_FR);
 
-            long posixInstant = 1482436057000l;
+            long posixInstant = 1484089226000l;
             Calendar cal = Calendar.getInstance();
             cal.setTimeInMillis(posixInstant);
             cal.set(Calendar.SECOND, 0);

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

@@ -26,7 +26,7 @@ public abstract class BaseGrapheneHandler extends WebSocketAdapter {
 
     @Override
     public void handleCallbackError(WebSocket websocket, Throwable cause) throws Exception {
-        System.out.println("handleCallbackError. cause: "+cause.getMessage()+", error: "+cause.getClass());
+        System.out.println("handleCallbackError. message: "+cause.getMessage()+", error: "+cause.getClass());
         for (StackTraceElement element : cause.getStackTrace()){
             System.out.println(element.getFileName()+"#"+element.getClassName()+":"+element.getLineNumber());
         }

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

@@ -1,7 +1,71 @@
 package de.bitsharesmunich.graphenej.api;
 
+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.Asset;
+import de.bitsharesmunich.graphenej.AssetAmount;
+import de.bitsharesmunich.graphenej.RPC;
+import de.bitsharesmunich.graphenej.interfaces.WitnessResponseListener;
+import de.bitsharesmunich.graphenej.models.ApiCall;
+import de.bitsharesmunich.graphenej.models.BitAssetData;
+import de.bitsharesmunich.graphenej.models.WitnessResponse;
+
+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 1/8/17.
  */
-public class GetObjects {
+public class GetObjects extends BaseGrapheneHandler {
+    private List<String> ids;
+
+    public GetObjects(List<String> ids, WitnessResponseListener listener){
+        super(listener);
+        this.ids = ids;
+    }
+
+    @Override
+    public void onConnected(WebSocket websocket, Map<String, List<String>> headers) throws Exception {
+        ArrayList<Serializable> params = new ArrayList<>();
+        ArrayList<Serializable> subParams = new ArrayList<>();
+        for(String id : this.ids){
+            subParams.add(id);
+        }
+        params.add(subParams);
+        ApiCall apiCall = new ApiCall(0, RPC.GET_OBJECTS, params, RPC.VERSION, 0);
+        websocket.sendText(apiCall.toJsonString());
+    }
+
+    @Override
+    public void onTextFrame(WebSocket websocket, WebSocketFrame frame) throws Exception {
+        if(frame.isTextFrame()){
+            System.out.println("<< "+frame.getPayloadText());
+        }
+        String response = frame.getPayloadText();
+        GsonBuilder gsonBuilder = new GsonBuilder();
+
+        //TODO: Uncomment this line after the deserializer is implemented.
+        gsonBuilder.registerTypeAdapter(AssetAmount.class, new AssetAmount.AssetDeserializer());
+//        gsonBuilder.registerTypeAdapter(BitAssetData.class, new BitAssetData.BitAssetDeserializer());
+
+        // Only homogeneus array is currently supported
+        if(ids.get(0).split("\\.")[1].equals("4")){
+            Type BitAssetDataType = new TypeToken<WitnessResponse<List<BitAssetData>>>(){}.getType();
+            WitnessResponse<List<BitAssetData>> witnessResponse = gsonBuilder.create().fromJson(response, BitAssetDataType);
+            mListener.onSuccess(witnessResponse);
+        }
+        websocket.disconnect();
+    }
+
+    @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/AssetFeed.java

@@ -1,7 +1,13 @@
 package de.bitsharesmunich.graphenej.models;
 
+import de.bitsharesmunich.graphenej.Price;
+
 /**
  * Created by nelson on 1/9/17.
  */
 public class AssetFeed {
+    public Price settlement_price;
+    public long maintenance_collateral_ratio;
+    public long maximum_short_squeeze_ratio;
+    public Price core_exchange_rate;
 }

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

@@ -1,7 +1,21 @@
 package de.bitsharesmunich.graphenej.models;
 
+import de.bitsharesmunich.graphenej.Price;
+
 /**
+ * This is the representation of the response from the 'get_objects' call with
+ * a 2.4.x id, which will retrieve a 'impl_asset_bitasset_data_type'.
+ *
  * Created by nelson on 1/8/17.
  */
 public class BitAssetData {
+    public String id;
+    public Object[] feeds;
+    public AssetFeed current_feed;
+    public String current_feed_publication_time;
+    public Object options;
+    public long force_settled_volume;
+    public boolean is_prediction_market;
+    public Price settlement_price;
+    public long settlement_fund;
 }