BAEL-5957: Creaet prime number finder for Kubernetes heap dump (#13190)

* BAEL-5957: Creaet prime number finder for Kubernetes heap dump * add dockerfile, kubernetes deploy file * use baeldung namespace * add saving primes to a list
2023-03-14 20:09:03 +00:00
parent 635be4bac0
commit f93f1d2c1e
5 changed files with 84 additions and 0 deletions
@@ -0,0 +1,8 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: prime-number-finder-pod
+spec:
+  containers:
+    - name: prime-number-finder
+      image: baeldung/prime-number:latest
@@ -0,0 +1,24 @@
+package com.baeldung.kubernetes.heap.dump;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.IntStream;
+
+public class PrimeNumberFinder {
+    public static void main(String[] args) {
+        List<Integer> primes = new ArrayList<>();
+        int maxNumber = Integer.MAX_VALUE; // set to huge to make it run a long time
+
+        for (int i = 2; i < maxNumber; i++) {
+            if (isPrime(i)) {
+                System.out.println(i);
+                primes.add(i);
+            }
+        }
+    }
+
+    private static boolean isPrime(int number) {
+        return IntStream.rangeClosed(2, (int) (Math.sqrt(number)))
+                .allMatch(n -> number % n != 0);
+    }
+}