added SuperVisor Stats for the snapshot

src/main/java/fucoin/supervisor/SuperVisorImpl.java

@@ -12,13 +12,11 @@ import fucoin.actions.SuperVisorAction;
 import fucoin.gui.SuperVisorGuiControl;
 import fucoin.AbstractNode;
 import fucoin.gui.TransactionLogger;
+import fucoin.wallet.WalletStatistics;
 
 import javax.swing.*;
 import java.time.LocalTime;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 import java.util.Map.Entry;
 
 public class SuperVisorImpl extends AbstractNode implements TransactionLogger {
@@ -171,7 +169,29 @@ public class SuperVisorImpl extends AbstractNode implements TransactionLogger {
     }
 
     public void createDump(LocalTime time) {
-        String str = new Gson().toJson(this.gui.getTable());
+        Snapshot snapshot = new Snapshot();
+        snapshot.amountTableModel = this.gui.getTable();
+        snapshot.statistics = new WalletStatistics();
+        int sum = 0;
+        Vector rows = snapshot.amountTableModel.getDataVector();
+        for (int i = 0; i < rows.size(); i++) {
+            if (rows.get(i) instanceof Vector) {
+                Vector<Object> row = (Vector<Object>) rows.get(i);
+                int amount = (Integer) row.get(2);
+                snapshot.statistics.setMin(amount);
+                snapshot.statistics.setMax(amount);
+                sum += amount;
+            }
+        }
+        snapshot.statistics.setSum(sum);
+        snapshot.statistics.setCount(rows.size());
+        snapshot.statistics.setAvg(sum / rows.size());
+        String str = new Gson().toJson(snapshot);
         super.createDump("SuperVisor", str, time);
     }
+
+    class Snapshot {
+        WalletStatistics statistics;
+        AmountTableModel amountTableModel;
+    }
 }

src/main/java/fucoin/wallet/WalletImpl.java

@@ -272,6 +272,7 @@ public class WalletImpl extends AbstractWallet {
                      f.getName().equals("min") ||
                      f.getName().equals("max") ||
                      f.getName().equals("sum") ||
+                     f.getName().equals("avg") ||
                      f.getName().equals("count") ||
                      f.getName().equals("amount") ||
                      f.getName().equals("name"));

src/main/java/fucoin/wallet/WalletStatistics.java

@@ -8,27 +8,28 @@ import java.io.Serializable;
 public class WalletStatistics implements Serializable {
     private int min;
     private int max;
+    private int avg;
     private int sum;
     private int count;
 
     public WalletStatistics() {
         this.min = Integer.MAX_VALUE;
         this.max = Integer.MIN_VALUE;
-        this.sum = 0;
+        this.avg = 0;
         this.count = 0;
     }
 
-    public WalletStatistics(int min, int max, int sum, int count) {
+    public WalletStatistics(int min, int max, int avg, int count) {
         this.min = min;
         this.max = max;
-        this.sum = sum;
+        this.avg = avg;
         this.count = count;
     }
 
     public void update(int currentWalletAmount) {
         setMin(currentWalletAmount);
         setMax(currentWalletAmount);
-        setSum(currentWalletAmount);
+        setAvg((getAvg() + currentWalletAmount) / 2);
     }
 
     public int getMin() {
@@ -47,12 +48,12 @@ public class WalletStatistics implements Serializable {
         this.max = Math.max(this.max, max);
     }
 
-    public int getSum() {
-        return sum;
+    public int getAvg() {
+        return avg;
     }
 
-    public void setSum(int sum) {
-        this.sum = (this.sum + sum) / 2;
+    public void setAvg(int avg) {
+        this.avg = avg;
     }
 
     public int getCount() {
@@ -60,6 +61,14 @@ public class WalletStatistics implements Serializable {
     }
 
     public void setCount(int count) {
-        this.count = (this.count + count) / 2;
+        this.count = count;
+    }
+
+    public int getSum() {
+        return sum;
+    }
+
+    public void setSum(int sum) {
+        this.sum = sum;
     }
 }