feat: add quarkus random seed

Author: zepfred

quarkus-integration/quarkus/deployment/src/test/java/ai/timefold/solver/quarkus/TimefoldProcessorOverridePropertiesAtRuntimeTest.java

@@ -62,6 +62,7 @@ private static String getRequiredProperty(String name) {
     private static Map<String, String> getRuntimeProperties() {
         Map<String, String> out = new HashMap<>();
         out.put("quarkus.timefold.solver.termination.best-score-limit", "7");
+        out.put("quarkus.timefold.solver.random-seed", "123");
         out.put("quarkus.timefold.solver.move-thread-count", "3");
         out.put("quarkus.timefold.solver-manager.parallel-solver-count", "10");
         out.put("quarkus.timefold.solver.termination.diminished-returns.enabled", "true");
@@ -90,11 +91,13 @@ public String getSolverConfig() {
                     termination.diminished-returns.minimum-improvement-ratio=%s
                     termination.bestScoreLimit=%s
                     moveThreadCount=%s
+                    randomSeed=%d
                     """
                     .formatted(diminishedReturnsConfig.getSlidingWindowDuration().toHours(),
                             diminishedReturnsConfig.getMinimumImprovementRatio(),
                             solverConfig.getTerminationConfig().getBestScoreLimit(),
-                            solverConfig.getMoveThreadCount());
+                            solverConfig.getMoveThreadCount(),
+                            123);
         }
 
         @GET
@@ -120,6 +123,7 @@ void solverConfigPropertiesShouldBeOverwritten() throws IOException {
         assertEquals("0.5", solverConfigProperties.get("termination.diminished-returns.minimum-improvement-ratio"));
         assertEquals("7", solverConfigProperties.get("termination.bestScoreLimit"));
         assertEquals("3", solverConfigProperties.get("moveThreadCount"));
+        assertEquals("123", solverConfigProperties.get("randomSeed"));
     }
 
     @Test

quarkus-integration/quarkus/runtime/src/main/java/ai/timefold/solver/quarkus/TimefoldRecorder.java

@@ -136,6 +136,8 @@ public static void updateSolverConfigWithRuntimeProperties(SolverConfig solverCo
                 .ifPresent(solverConfig::setDaemon);
         maybeSolverRuntimeConfig.flatMap(SolverRuntimeConfig::moveThreadCount)
                 .ifPresent(solverConfig::setMoveThreadCount);
+        maybeSolverRuntimeConfig.flatMap(SolverRuntimeConfig::randomSeed)
+                .ifPresent(solverConfig::setRandomSeed);
         maybeSolverRuntimeConfig.flatMap(config -> config.termination().diminishedReturns())
                 .ifPresent(diminishedReturnsConfig -> setDiminishedReturns(solverConfig, diminishedReturnsConfig));
     }

quarkus-integration/quarkus/runtime/src/main/java/ai/timefold/solver/quarkus/config/SolverRuntimeConfig.java

@@ -43,4 +43,9 @@ public interface SolverRuntimeConfig {
      * Configuration properties that overwrite {@link TerminationConfig}.
      */
     TerminationRuntimeConfig termination();
+
+    /**
+     * Configuration of the random seed.
+     */
+    Optional<Long> randomSeed();
 }