Made the application events thread properties configurable. (#47)

* Increased the thread event count to 100.

* Updating README with brief commit details

* Made the application events thread properties configurable.

* Updating README with brief commit details

---------

Co-authored-by: GitHub Action <action@github.com>

README.md

@@ -113,4 +113,4 @@ e5792d192c6d5f67786b663fb7ba2138d1f9d95c | Yugandharkumar | Create commits-prese
 6513067b376bf0ec650c2a032839d19741e6497c | sanopsmx | Increased the thread event count to 100. | 2023-10-06 
 
 
-914acfd7367e2c14206990a4985eafc29b41f9ff | Sanjeev Thatiparthi | Increased the thread events count to 100 (#46) | 2023-10-06 
+4cc3b9f3ae3cf44d52337b95dfd7de776f298251 | sanopsmx | Made the application events thread properties configurable. | 2023-10-17 

orca-core/src/main/java/com/netflix/spinnaker/orca/config/OrcaConfiguration.java

@@ -55,6 +55,7 @@
 import org.pf4j.PluginManager;
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.properties.ConfigurationProperties;
@@ -188,11 +189,14 @@ public ApplicationEventMulticaster applicationEventMulticaster(
   }
 
   @Bean
-  public ThreadPoolTaskExecutor applicationEventTaskExecutor() {
+  public ThreadPoolTaskExecutor applicationEventTaskExecutor(
+      @Value("${thread.application.event.namePrefix:events-}") String threadNamePrefix,
+      @Value("${thread.application.event.corePoolSize:20}") int corePoolSize,
+      @Value("${thread.application.event.maxPoolSize:20}") int maxPoolSize) {
     ThreadPoolTaskExecutor threadPool = new ThreadPoolTaskExecutor();
-    threadPool.setThreadNamePrefix("events-");
-    threadPool.setCorePoolSize(100);
-    threadPool.setMaxPoolSize(100);
+    threadPool.setThreadNamePrefix(threadNamePrefix);
+    threadPool.setCorePoolSize(corePoolSize);
+    threadPool.setMaxPoolSize(maxPoolSize);
     return threadPool;
   }