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Dropped new ThreadLocal in favor of ThreadLocalRandom.

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MobiusDevelopment
2021-10-15 21:13:59 +00:00
parent 5599581cea
commit ccd7db72c4
24 changed files with 319 additions and 896 deletions
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50
L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/commons/util/Rnd.java
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@@ -16,35 +16,19 @@
*/
package org.l2jmobius.commons.util;
import java.util.Random;
import java.util.concurrent.ThreadLocalRandom;
/**
* @author Mobius
*/
public class Rnd
{
/**
* Thread-specific random number generator.<br>
* Each is seeded with the thread ID, so the sequence of random numbers are unique between threads.
*/
// Java 1.8
// private static ThreadLocal<Random> RANDOM = new ThreadLocal<Random>()
// Java 10
private static ThreadLocal<Random> RANDOM = new ThreadLocal<>()
{
@Override
protected Random initialValue()
{
return new Random(System.nanoTime() + Thread.currentThread().getId());
}
};
/**
* @return a random boolean value.
*/
public static boolean nextBoolean()
{
return RANDOM.get().nextBoolean();
return ThreadLocalRandom.current().nextBoolean();
}
/**
@@ -53,7 +37,7 @@ public class Rnd
*/
public static void nextBytes(byte[] bytes)
{
RANDOM.get().nextBytes(bytes);
ThreadLocalRandom.current().nextBytes(bytes);
}
/**
@@ -62,7 +46,7 @@ public class Rnd
*/
public static int get(int bound)
{
return (int) (RANDOM.get().nextDouble() * bound);
return ThreadLocalRandom.current().nextInt(bound);
}
/**
@@ -72,11 +56,7 @@ public class Rnd
*/
public static int get(int origin, int bound)
{
if (origin == bound)
{
return origin;
}
return origin + (int) (((bound - origin) + 1) * RANDOM.get().nextDouble());
return ThreadLocalRandom.current().nextInt(origin, bound == Integer.MAX_VALUE ? bound : bound + 1);
}
/**
@@ -84,7 +64,7 @@ public class Rnd
*/
public static int nextInt()
{
return RANDOM.get().nextInt();
return ThreadLocalRandom.current().nextInt();
}
/**
@@ -93,7 +73,7 @@ public class Rnd
*/
public static long get(long bound)
{
return (long) (RANDOM.get().nextDouble() * bound);
return ThreadLocalRandom.current().nextLong(bound);
}
/**
@@ -103,11 +83,7 @@ public class Rnd
*/
public static long get(long origin, long bound)
{
if (origin == bound)
{
return origin;
}
return origin + (long) (((bound - origin) + 1) * RANDOM.get().nextDouble());
return ThreadLocalRandom.current().nextLong(origin, bound == Long.MAX_VALUE ? bound : bound + 1L);
}
/**
@@ -115,7 +91,7 @@ public class Rnd
*/
public static long nextLong()
{
return RANDOM.get().nextLong();
return ThreadLocalRandom.current().nextLong();
}
/**
@@ -124,7 +100,7 @@ public class Rnd
*/
public static double get(double bound)
{
return RANDOM.get().nextDouble() * bound;
return ThreadLocalRandom.current().nextDouble(bound);
}
/**
@@ -138,7 +114,7 @@ public class Rnd
{
return origin;
}
return origin + (((bound - origin) + 1) * RANDOM.get().nextDouble());
return ThreadLocalRandom.current().nextDouble(origin, bound == Double.MAX_VALUE ? bound : bound + 0.000000000000001d);
}
/**
@@ -146,7 +122,7 @@ public class Rnd
*/
public static double nextDouble()
{
return RANDOM.get().nextDouble();
return ThreadLocalRandom.current().nextDouble();
}
/**
@@ -154,6 +130,6 @@ public class Rnd
*/
public static double nextGaussian()
{
return RANDOM.get().nextGaussian();
return ThreadLocalRandom.current().nextGaussian();
}
}