init

src/org/fog/utils/distribution/DeterministicDistribution.java

@@ -0,0 +1,35 @@
+package org.fog.utils.distribution;
+
+public class DeterministicDistribution extends Distribution{
+
+	private double value;
+
+	public DeterministicDistribution(double value) {
+		super();
+		setValue(value);
+	}
+	
+	@Override
+	public double getNextValue() {
+		return value;
+	}
+	
+	public double getValue() {
+		return value;
+	}
+
+	public void setValue(double value) {
+		this.value = value;
+	}
+
+	@Override
+	public int getDistributionType() {
+		return Distribution.DETERMINISTIC;
+	}
+
+	@Override
+	public double getMeanInterTransmitTime() {
+		return value;
+	}
+	
+}

src/org/fog/utils/distribution/Distribution.java

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+package org.fog.utils.distribution;
+
+import java.util.Random;
+
+public abstract class Distribution {
+
+	public static int NORMAL = 1;
+	public static int DETERMINISTIC = 2;
+	public static int UNIFORM = 3;
+	
+	protected Random random;
+	public abstract double getNextValue();
+	
+	public Random getRandom() {
+		return random;
+	}
+
+	public void setRandom(Random random) {
+		this.random = random;
+	}
+
+	public abstract int getDistributionType();
+	public abstract double getMeanInterTransmitTime();
+}

src/org/fog/utils/distribution/NormalDistribution.java

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+package org.fog.utils.distribution;
+
+import java.util.Random;
+
+public class NormalDistribution extends Distribution{
+
+	private double mean;
+	private double stdDev;
+	
+	public NormalDistribution(double mean, double stdDev) {
+		setMean(mean);
+		setStdDev(stdDev);
+		setRandom(new Random());
+	}
+	
+	@Override
+	public double getNextValue() {
+		return random.nextGaussian()*stdDev + mean;
+	}
+
+	public double getMean() {
+		return mean;
+	}
+
+	public void setMean(double mean) {
+		this.mean = mean;
+	}
+
+	public double getStdDev() {
+		return stdDev;
+	}
+
+	public void setStdDev(double stdDev) {
+		this.stdDev = stdDev;
+	}
+	
+	@Override
+	public int getDistributionType() {
+		return Distribution.NORMAL;
+	}
+
+	@Override
+	public double getMeanInterTransmitTime() {
+		return mean;
+	}
+
+}

src/org/fog/utils/distribution/UniformDistribution.java

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+package org.fog.utils.distribution;
+
+public class UniformDistribution extends Distribution{
+
+	private double min;
+	private double max;
+	
+	public UniformDistribution(double min, double max){
+		super();
+		setMin(min);
+		setMax(max);
+	}
+	
+	@Override
+	public double getNextValue() {
+		return getRandom().nextDouble()*(getMax()-getMin())+getMin();
+	}
+
+	public double getMin() {
+		return min;
+	}
+
+	public void setMin(double min) {
+		this.min = min;
+	}
+
+	public double getMax() {
+		return max;
+	}
+
+	public void setMax(double max) {
+		this.max = max;
+	}
+	
+	@Override
+	public int getDistributionType() {
+		return Distribution.UNIFORM;
+	}
+
+	@Override
+	public double getMeanInterTransmitTime() {
+		return (min+max)/2;
+	}
+
+}