More specific deserializer for the Asset class

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

@@ -1,9 +1,19 @@
 package de.bitsharesmunich.graphenej;
 
+import com.google.gson.*;
+
+import java.lang.reflect.Type;
+
 /**
  * Created by nelson on 11/9/16.
  */
 public class Asset extends GrapheneObject {
+    public static final String KEY_ID = "id";
+    public static final String KEY_SYMBOL = "symbol";
+    public static final String KEY_PRECISION = "precision";
+    public static final String KEY_ISSUER = "issuer";
+    public static final String KEY_DYNAMIC_ASSET_DATA_ID = "dynamic_asset_data_id";
+
     private String id;
     private String symbol;
     private int precision;
@@ -11,16 +21,48 @@ public class Asset extends GrapheneObject {
     private String dynamic_asset_data_id;
     private AssetOptions options;
 
+    /**
+     * Simple constructor
+     * @param id
+     */
     public Asset(String id) {
         super(id);
         this.id = id;
     }
 
+    /**
+     * Constructor
+     * @param id: The graphene object id.
+     * @param symbol: The asset symbol.
+     * @param precision: The asset precision.
+     */
+    public Asset(String id, String symbol, int precision){
+        super(id);
+        this.symbol = symbol;
+        this.precision = precision;
+    }
+
     public String getSymbol(){
         return this.symbol;
     }
 
-    public String getId(){
-        return this.id;
+    public int getPrecision(){
+        return this.precision;
+    }
+
+    /**
+     * Custom deserializer used to instantiate a simple version of the Asset class from the response of the
+     * 'lookup_asset_symbols' API call.
+     */
+    public static class AssetDeserializer implements JsonDeserializer<Asset> {
+
+        @Override
+        public Asset deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
+            JsonObject object = json.getAsJsonObject();
+            String id = object.get(KEY_ID).getAsString();
+            String symbol = object.get(KEY_SYMBOL).getAsString();
+            int precision = object.get(KEY_PRECISION).getAsInt();
+            return new Asset(id, symbol, precision);
+        }
     }
 }

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

@@ -792,7 +792,7 @@ public class Test {
                 System.out.println("onSuccess");
                 WitnessResponse<List<Asset>> resp = response;
                 for(Asset asset : resp.result){
-                    System.out.println("Asset: "+asset.getId()+", Symbol: "+asset.getSymbol());
+                    System.out.println("Asset: "+asset.getObjectId()+", Symbol: "+asset.getSymbol());
                 }
             }
 

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

@@ -47,6 +47,7 @@ public class LookupAssetSymbols extends WebSocketAdapter {
         System.out.println("<<< "+response);
         GsonBuilder gsonBuilder = new GsonBuilder();
         Type LookupAssetSymbolsResponse = new TypeToken<WitnessResponse<List<Asset>>>(){}.getType();
+        gsonBuilder.registerTypeAdapter(Asset.class, new Asset.AssetDeserializer());
         WitnessResponse<List<Asset>> witnessResponse = gsonBuilder.create().fromJson(response, LookupAssetSymbolsResponse);
         mListener.onSuccess(witnessResponse);
     }