Optimize timestamp computing

gmdl-tools/monitor/src/main/java/eu/chorevolution/vsb/agent/MeasureAgent.java

@@ -6,6 +6,8 @@ import java.lang.management.ThreadMXBean;
 import java.net.InetAddress;
 import java.rmi.registry.LocateRegistry;
 import java.sql.Date;
+import java.util.Arrays;
+import java.util.Comparator;
 
 import javax.management.InstanceAlreadyExistsException;
 import javax.management.MBeanRegistrationException;
@@ -69,8 +71,24 @@ public class MeasureAgent {
 
 		}
 		
-		long ntpTimestamp = getNTPtimestamp();
-		setDeltaTime(ntpTimestamp, localTimestamp);
+		int count = 0;
+		long[] ntpTimestampCollection = new long[10];
+		while(count < 10){
+			
+			ntpTimestampCollection[count] = getNTPtimestamp() - System.currentTimeMillis();
+			try {
+				Thread.sleep(100);
+			} catch (InterruptedException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+			count++;
+		}
+		Arrays.sort(ntpTimestampCollection);
+		
+		
+		long ntpTimestampMediane = Math.round((ntpTimestampCollection[4] + ntpTimestampCollection[5])/2);
+		setDeltaTime(ntpTimestampMediane, localTimestamp);
 	}
 	
 	
@@ -110,7 +128,15 @@ public class MeasureAgent {
 		
 	}
 
-
+	public long computeMedianTimestamp(){
+		
+		int count = 0;
+		while(count < 10){
+			
+			
+		}
+		return 0;
+	}
 	public long getDeltaTime(){
 		
 		return this.deltaTime;