Calculators and main

To unify the naming used for classes

src/Calculators/MetricCalculator.java

+package Calculators;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import Packets.BounceDefinition;
+import Packets.ClickInfo;
+import Packets.CompiledData;
+import Packets.ServerInfo;
+
+/**
+ * Calculate the key metrics needed for graph generation.
+ */
+public class MetricCalculator {
+
+  public Metrics calculateMetrics(CompiledData compiledData, BounceDefinition bounceDefinition) {
+    Integer noOfImpressions = compiledData.getImpressionInfo().size();
+
+    ArrayList<ClickInfo> clickInfoList = compiledData.getClickInfo();
+    Integer noOfClicks = clickInfoList.size();
+
+    //Uniques
+    ArrayList<String> ids = new ArrayList<String>();
+    for (ClickInfo ci : clickInfoList) {
+      ids.add(ci.getID());
+    }
+    List<String> uniqueIds = ids.stream().distinct().collect(Collectors.toList());
+    Integer noOfUniques = uniqueIds.size();
+    
+    //Number of bounces
+    Integer noOfBounces = 0;
+    if (bounceDefinition.getCountsPages()) {
+      for (ServerInfo i : compiledData.getServerInfo()) {
+        if (i.getPages() < bounceDefinition.getThreshold()) {++noOfBounces;}
+      }
+    } else {
+      for (ServerInfo i : compiledData.getServerInfo()) {
+        if (i.getDuration() < bounceDefinition.getThreshold()) {++noOfBounces;}
+      }
+    }
+  }
+}
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