fix: expose ResourceCache instead of InformerEventSource

Author: metacosm

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/config/ControllerConfiguration.java

@@ -1,11 +1,12 @@
 package io.javaoperatorsdk.operator.api.config;
 
+import java.util.Collections;
+import java.util.List;
+
 import io.fabric8.kubernetes.api.model.HasMetadata;
 import io.javaoperatorsdk.operator.ReconcilerUtils;
 import io.javaoperatorsdk.operator.api.reconciler.DependentResource;
 import io.javaoperatorsdk.operator.processing.event.source.ResourceEventFilter;
-import java.util.Collections;
-import java.util.List;
 
 public interface ControllerConfiguration<R extends HasMetadata> extends
     ResourceConfiguration<R, ControllerConfiguration<R>> {

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/config/DependentResourceConfiguration.java

@@ -1,16 +1,16 @@
 package io.javaoperatorsdk.operator.api.config;
 
-import static io.javaoperatorsdk.operator.api.reconciler.DependentResourceConfiguration.CREATABLE_DEFAULT;
-import static io.javaoperatorsdk.operator.api.reconciler.DependentResourceConfiguration.OWNED_DEFAULT;
-import static io.javaoperatorsdk.operator.api.reconciler.DependentResourceConfiguration.UPDATABLE_DEFAULT;
-
 import java.util.Set;
 import java.util.function.Function;
 
 import io.fabric8.kubernetes.api.model.HasMetadata;
 import io.javaoperatorsdk.operator.processing.event.ResourceID;
 import io.javaoperatorsdk.operator.processing.event.source.Mappers;
 
+import static io.javaoperatorsdk.operator.api.reconciler.DependentResourceConfiguration.CREATABLE_DEFAULT;
+import static io.javaoperatorsdk.operator.api.reconciler.DependentResourceConfiguration.OWNED_DEFAULT;
+import static io.javaoperatorsdk.operator.api.reconciler.DependentResourceConfiguration.UPDATABLE_DEFAULT;
+
 public interface DependentResourceConfiguration<R extends HasMetadata>
     extends ResourceConfiguration<R, DependentResourceConfiguration<R>> {
 

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/config/ResourceConfiguration.java

@@ -1,6 +1,5 @@
 package io.javaoperatorsdk.operator.api.config;
 
-import java.lang.reflect.ParameterizedType;
 import java.util.Collections;
 import java.util.Set;
 

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/reconciler/DependentResource.java

@@ -2,18 +2,19 @@
 
 import io.fabric8.kubernetes.api.model.HasMetadata;
 import io.javaoperatorsdk.operator.api.config.DependentResourceConfiguration;
-import io.javaoperatorsdk.operator.processing.event.source.InformerEventSource;
+import io.javaoperatorsdk.operator.processing.event.ResourceID;
+import io.javaoperatorsdk.operator.processing.event.source.ResourceCache;
 
 public interface DependentResource<R extends HasMetadata> {
   default R build() {
     throw new UnsupportedOperationException(
         "Should be implemented only if DependentResource is configured as creatable");
   }
 
-  InformerEventSource<R> source();
+  ResourceCache<R> getCache();
 
   default R fetchFor(HasMetadata owner) {
-    return source().getAssociated(owner);
+    return getCache().get(ResourceID.fromResource(owner)).orElse(null);
   }
 
   DependentResourceConfiguration<R> getConfiguration();

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/reconciler/Reconciler.java

@@ -1,8 +1,5 @@
 package io.javaoperatorsdk.operator.api.reconciler;
 
-import java.util.Collections;
-import java.util.List;
-
 import io.fabric8.kubernetes.api.model.HasMetadata;
 
 public interface Reconciler<R extends HasMetadata> {