KLALB2.3

src/org/kne/cloud/clock/AdjustedNanoClock.java

@@ -0,0 +1,74 @@
+package org.kne.cloud.clock;
+
+import java.util.concurrent.locks.ReentrantLock;
+
+public class AdjustedNanoClock {
+private ReentrantLock lock=new ReentrantLock();
+	
+	
+	public ReentrantLock getLock() {
+		return lock;
+	}
+
+	
+	private volatile long delta=0;
+	private volatile long accuracy=Long.MAX_VALUE;
+	private boolean unsetted=true;
+	public long getCurrentTime() {
+		return System.nanoTime()+delta;
+	}
+	public AdjustedNanoClock(long delta) {
+		super();
+		this.delta = delta;
+	}
+	public AdjustedNanoClock() {
+	}
+	@Override
+	public String toString() {
+		return "AdjustedNanoClock [delta=" + delta + ", accuracy=" + accuracy + "]";
+	}
+	public long getDelta() {
+		return delta;
+	}
+	public void setDelta(long delta) {
+		this.delta = delta;
+	}
+	public void setCurrentTime(long curr) {
+		delta=curr-System.nanoTime();
+	}
+	public void setCurrentTime2(long curr) {
+		if(unsetted) {
+			unsetted=false;
+			delta=curr-System.nanoTime();
+		}else {
+		delta=(delta*9+ curr-System.nanoTime())/10;
+		}
+	}
+	public long getAccuracy() {
+		return accuracy;
+	}
+	public void calibrate(long delta,long taccurace) {
+		if(accuracy==Long.MAX_VALUE||taccurace<= accuracy) {
+			accuracy=taccurace;
+			unsetted=false;
+			this.delta=delta;
+			//System.out.println(delta+" "+currentTime+" "+taccurace);
+		}else {
+			accuracy=(accuracy*9999+taccurace)/10000;
+		}
+	}
+	public void calibrate2(long delta,long taccurace) {
+		if(accuracy==Long.MAX_VALUE||taccurace<= accuracy) {
+			accuracy=taccurace;	
+			if(unsetted) {
+				unsetted=false;
+				this.delta=delta;
+			}else {
+				this.delta=(this.delta*9+delta)/10;
+			}
+			//System.out.println(delta+" "+currentTime+" "+taccurace);
+		}else {
+			accuracy=(accuracy*9999+taccurace)/10000;
+		}
+	}
+}