refactor: generify CustomResourceFacade

Author: metacosm

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/Operator.java

@@ -53,7 +53,7 @@ public <R extends CustomResource> void register(
       final var targetNamespaces = configuration.getNamespaces().toArray(new String[] {});
       Class<R> resClass = configuration.getCustomResourceClass();
       String finalizer = configuration.getFinalizer();
-      MixedOperation client = k8sClient.customResources(resClass);
+      final var client = k8sClient.customResources(resClass);
       EventDispatcher dispatcher =
           new EventDispatcher(
               controller, finalizer, new EventDispatcher.CustomResourceFacade(client));

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/processing/EventDispatcher.java

@@ -5,6 +5,7 @@
 import static io.javaoperatorsdk.operator.processing.KubernetesResourceUtils.getVersion;
 import static io.javaoperatorsdk.operator.processing.KubernetesResourceUtils.markedForDeletion;
 
+import io.fabric8.kubernetes.api.model.KubernetesResourceList;
 import io.fabric8.kubernetes.client.CustomResource;
 import io.fabric8.kubernetes.client.dsl.MixedOperation;
 import io.fabric8.kubernetes.client.dsl.Resource;
@@ -189,23 +190,24 @@ private void addFinalizerIfNotPresent(CustomResource resource) {
   }
 
   // created to support unit testing
-  public static class CustomResourceFacade {
+  public static class CustomResourceFacade<R extends CustomResource> {
 
-    private final MixedOperation<?, ?, Resource<CustomResource>> resourceOperation;
+    private final MixedOperation<R, KubernetesResourceList<R>, Resource<R>> resourceOperation;
 
-    public CustomResourceFacade(MixedOperation<?, ?, Resource<CustomResource>> resourceOperation) {
+    public CustomResourceFacade(
+        MixedOperation<R, KubernetesResourceList<R>, Resource<R>> resourceOperation) {
       this.resourceOperation = resourceOperation;
     }
 
-    public CustomResource updateStatus(CustomResource resource) {
+    public R updateStatus(R resource) {
       log.trace("Updating status for resource: {}", resource);
       return resourceOperation
           .inNamespace(resource.getMetadata().getNamespace())
           .withName(resource.getMetadata().getName())
           .updateStatus(resource);
     }
 
-    public CustomResource replaceWithLock(CustomResource resource) {
+    public R replaceWithLock(R resource) {
       return resourceOperation
           .inNamespace(resource.getMetadata().getNamespace())
           .withName(resource.getMetadata().getName())