Dependency added for Apache common math lib

Author: Pranavan135

components/org.apache.stratos.autoscaler/pom.xml

@@ -202,6 +202,11 @@
             <artifactId>nimbus-jose-jwt</artifactId>
             <version>2.26.1.wso2v2</version>
         </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-math3</artifactId>
+            <version>3.2</version>
+        </dependency>
     </dependencies>
 
     <build>

components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/rule/RuleTasksDelegator.java

@@ -370,8 +370,15 @@ public double getLoadAveragePredictedValue(ClusterInstanceContext clusterInstanc
 
     public double getLoadAveragePredictedValue(){
         double loadAveragePredicted = 0.0;
-        int totalMemberCount;
-        return 0;
+        int totalMemberCount = 0;
+
+        if (totalMemberCount > 0) {
+            log.debug("Predicted load average : " + loadAveragePredicted / totalMemberCount);
+            return loadAveragePredicted / totalMemberCount;
+        } else {
+            return 0;
+        }
+
     }
 
     public double getMemoryConsumptionPredictedValue(ClusterInstanceContext clusterInstanceContext) {