refactor: make DelegatingRetryConfiguration.resolve static

Author: metacosm

operator-framework-quarkus-extension/deployment/src/main/java/io/javaoperatorsdk/quarkus/extension/deployment/DelegatingRetryConfiguration.java

@@ -10,16 +10,20 @@ class DelegatingRetryConfiguration implements RetryConfiguration {
 
   private final RetryConfiguration delegate;
 
-  public DelegatingRetryConfiguration(Optional<ExternalRetryConfiguration> retry) {
+  private DelegatingRetryConfiguration(Optional<ExternalRetryConfiguration> retry) {
     delegate =
         retry
             .<RetryConfiguration>map(ExternalRetryConfigurationAdapter::new)
             .orElse(RetryConfiguration.DEFAULT);
   }
 
-  public RetryConfiguration resolve() {
+  public static RetryConfiguration resolve(Optional<ExternalRetryConfiguration> retry) {
+    final var delegate = new DelegatingRetryConfiguration(retry);
     return new PlainRetryConfiguration(
-        getMaxAttempts(), getInitialInterval(), getIntervalMultiplier(), getMaxInterval());
+        delegate.getMaxAttempts(),
+        delegate.getInitialInterval(),
+        delegate.getIntervalMultiplier(),
+        delegate.getMaxInterval());
   }
 
   @Override

operator-framework-quarkus-extension/deployment/src/main/java/io/javaoperatorsdk/quarkus/extension/deployment/QuarkusExtensionProcessor.java

@@ -180,7 +180,7 @@ private ControllerConfiguration createControllerConfiguration(
   }
 
   private RetryConfiguration retryConfiguration(ExternalControllerConfiguration extConfig) {
-    return extConfig == null ? null : new DelegatingRetryConfiguration(extConfig.retry).resolve();
+    return extConfig == null ? null : DelegatingRetryConfiguration.resolve(extConfig.retry);
   }
 
   private static class ValueExtractor {