Viacoin: FixPriceRateSource

server_extensions_extra/src/main/java/com/generalbytes/batm/server/extensions/extra/viacoin/sources/FixPriceRateSource.java

@@ -0,0 +1,55 @@
+package com.generalbytes.batm.server.extensions.extra.viacoin.sources;
+
+import com.generalbytes.batm.server.extensions.ICurrencies;
+import com.generalbytes.batm.server.extensions.IRateSource;
+
+import java.math.BigDecimal;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+* Classes implementing this interface are used by the server to obtain price of specified cryptocurrency in fiat currency
+*/
+public class FixPriceRateSource implements IRateSource {
+    private BigDecimal rate = BigDecimal.ZERO;
+
+    private String preferedFiatCurrency = ICurrencies.USD;
+
+    public FixPriceRateSource(BigDecimal rate, String preferedFiatCurrency)
+        this.rate = rate;
+        if(ICurrencies.EUR.equalsIgnoreCase(preferedFiatCurrency)){
+            this.preferedFiatCurrency = ICurrencies.EUR;
+        }
+        if(ICurrencies.USD.equalsIgnoreCase(preferedFiatCurrency)){
+            this.preferedFiatCurrency = ICurrencies.USD;
+        }
+    }
+
+    @Override
+    public Set<String> getCryptoCurrencies() {
+        Set<String> result = new HashSet<String>();
+        result.add(ICurrencies.VIA);
+        return result;
+    }
+
+    @Override
+    public BigDecimal getExchangeRateLast(String cryptoCurrency, String fiatCurrency){
+        if(ICurrencies.VIA.equalsIgnoreCase(cryptoCurrency)){
+            return rate;
+        }
+        return null;
+    }
+
+    @Override
+    public Set<String> getFiatCurrencies(){
+        Set<String> result = new HashSet<String>();
+        result.add(ICurrencies.USD);
+        result.add(ICurrencies.EUR);
+        return result;
+    }
+
+    @Override
+    public String getPreferredFiatCurrency(){
+        return preferedFiatCurrency;
+    }
+}