From 912bc8b903dfa6d438c2469ecdad35c181c71830 Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Mon, 25 Jan 2021 21:29:12 +0100
Subject: Improving usability, massive refactoring.

* Moving all Drools code into their own modules. This fixes ri-engine
  to acme dependency.
* Now they all inherit from their own parent, should be used by
  third party code too.
* Separating acme planning code into its own module.
* Splitting rules code from ri-engine into ri-base. ri-engine is now
  a pure launcher for modules.
* Dumping kogito for the most part, but it seems like the planner still
  requires that.
---
 .../machine/CloudBalancingEasyScoreCalculator.java | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 module/acme-planner/src/main/java/io/trygvis/acme/planning/machine/CloudBalancingEasyScoreCalculator.java

(limited to 'module/acme-planner/src/main/java/io/trygvis/acme/planning/machine/CloudBalancingEasyScoreCalculator.java')

diff --git a/module/acme-planner/src/main/java/io/trygvis/acme/planning/machine/CloudBalancingEasyScoreCalculator.java b/module/acme-planner/src/main/java/io/trygvis/acme/planning/machine/CloudBalancingEasyScoreCalculator.java
new file mode 100644
index 0000000..6a14372
--- /dev/null
+++ b/module/acme-planner/src/main/java/io/trygvis/acme/planning/machine/CloudBalancingEasyScoreCalculator.java
@@ -0,0 +1,45 @@
+package io.trygvis.acme.planning.machine;
+
+import org.optaplanner.core.api.score.buildin.hardsoft.HardSoftScore;
+import org.optaplanner.core.api.score.calculator.EasyScoreCalculator;
+
+public class CloudBalancingEasyScoreCalculator implements EasyScoreCalculator<CloudBalance, HardSoftScore> {
+
+    @Override
+    public HardSoftScore calculateScore(CloudBalance cloudBalance) {
+        int hardScore = 0;
+        int softScore = 0;
+        for (CloudComputer computer : cloudBalance.getComputerList()) {
+            int cpu = 0;
+            int memory = 0;
+            boolean used = false;
+
+            // Calculate usage
+            for (CloudProcess process : cloudBalance.getProcessList()) {
+                if (computer.equals(process.computer)) {
+                    cpu += process.requiredCpu;
+                    memory += process.requiredMemory;
+                    used = true;
+                }
+            }
+
+            var instance = computer.instance;
+
+            // Hard constraints
+            int cpuPowerAvailable = instance.cpu - cpu;
+            if (cpuPowerAvailable < 0) {
+                hardScore += cpuPowerAvailable;
+            }
+            int memoryAvailable = instance.memory - memory;
+            if (memoryAvailable < 0) {
+                hardScore += memoryAvailable;
+            }
+
+            // Soft constraints
+            if (used) {
+                softScore -= instance.cost;
+            }
+        }
+        return HardSoftScore.of(hardScore, softScore);
+    }
+}
-- 
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