20: Fetch open Perps positions JupiterPerpsEntryPriceVariableRefresher

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/JupiterPerpsEntryPriceVariableRefresher.tjava

@@ -1,9 +1,12 @@
 package com.r35157.jupiterperpsalarm.impl.ref;
 
+import com.r35157.libs.jupiter.perps.JupiterPerpsPosition;
 import com.r35157.libs.jupiter.perps.JupiterPerpsService;
 
+import java.io.IOException;
 import java.util.Map;
 import java.util.Objects;
+import java.util.Set;
 
 public final class JupiterPerpsEntryPriceVariableRefresher {
 
@@ -16,14 +19,30 @@ public final class JupiterPerpsEntryPriceVariableRefresher {
     }
 
     public void refresh() {
-        String wallet = variables.get("JUPITER_PERPS_WALLET");
+        ΩSolanaWalletIdΩ  wallet = variables.get("JUPITER_PERPS_WALLET");
 
         if (wallet == null || wallet.isBlank()) {
             System.err.println("Cannot refresh Jupiter Perps entry price variables: JUPITER_PERPS_WALLET is not configured");
             return;
         }
 
-        System.out.println("Jupiter Perps entry price variable refresh requested for wallet: " + wallet);
+        try {
+            Set<JupiterPerpsPosition> positions = jupiterPerpsService.getOpenPositions(wallet);
+
+            System.out.println(
+                    "Fetched " + positions.size()
+                            + " open Jupiter Perps positions for wallet: " + wallet
+            );
+        } catch (IOException | InterruptedException exception) {
+            if (exception instanceof InterruptedException) {
+                Thread.currentThread().interrupt();
+            }
+
+            System.err.println(
+                    "Could not refresh Jupiter Perps entry price variables: "
+                            + exception.getMessage()
+            );
+        }
     }
 
     private final Map<String, String> variables;