add java based resource handler

java/custom-resource/lambda/CustomResourceHandlerPT.java

@@ -0,0 +1,43 @@
+import software.amazon.lambda.powertools.logging.Logging;
+import software.amazon.lambda.powertools.logging.LoggingUtils;
+import com.amazonaws.services.lambda.runtime.Context;
+import com.amazonaws.services.lambda.runtime.events.CloudFormationCustomResourceEvent;
+import software.amazon.lambda.powertools.cloudformation.AbstractCustomResourceHandler;
+import software.amazon.lambda.powertools.cloudformation.Response;
+
+
+public class CustomResourceHandlerPT extends AbstractCustomResourceHandler {
+
+    @Logging(logEvent = true)
+    @Override
+    protected Response create(CloudFormationCustomResourceEvent createEvent, Context context) {
+        LoggingUtils.appendKey("operation", "create");
+        LoggingUtils.appendKey("resourceProperties", resourceProperties);
+
+        String message = (String) resourceProperties.get("Message");
+        Map<String, Object> attributes = new HashMap<>();
+        attributes.put("Response", String.format("Resource message \"%s\"", message));
+
+        return Response.success(attributes).withData(attributes);
+    }
+
+    @Logging(logEvent = true)
+    @Override
+    protected Response update(CloudFormationCustomResourceEvent updateEvent, Context context) {
+
+        LoggingUtils.appendKey("operation", "update");
+        LoggingUtils.appendKey("physicalResourceId", physicalResourceId);
+
+        return Response.success(physicalResourceId);
+    }
+
+    @Logging(logEvent = true)
+    @Override
+    protected Response delete(CloudFormationCustomResourceEvent deleteEvent, Context context) {
+
+        LoggingUtils.appendKey("operation", "delete");
+        LoggingUtils.appendKey("physicalResourceId", physicalResourceId);
+
+        return Response.success(physicalResourceId);
+    }
+}

java/custom-resource/lambda/CustomResourceIsCompleteHandlerSimple.java

@@ -0,0 +1,80 @@
+package com.myapp;
+
+import com.amazonaws.services.lambda.runtime.Context;
+import com.amazonaws.services.lambda.runtime.RequestHandler;
+import java.util.HashMap;
+import java.util.Map;
+
+public class CustomResourceHandlerSimple implements RequestHandler<Map<String, Object>, Map<String, Object>> {
+
+    @Override
+    public Map<String, Object> handleRequest(Map<String, Object> event, Context context) {
+        System.out.println(event);
+        String requestType = (String) event.get("RequestType");
+
+        switch (requestType) {
+            case "Create":
+                return onCreate(event);
+            case "Update":
+                return onUpdate(event);
+            case "Delete":
+                return onDelete(event);
+            default:
+                throw new RuntimeException("Invalid request type: " + requestType);
+        }
+    }
+
+    private Map<String, Object> onCreate(Map<String, Object> event) {
+        @SuppressWarnings("unchecked")
+        Map<String, Object> props = (Map<String, Object>) event.get("ResourceProperties");
+        System.out.println("Create new resource with props " + props);
+
+        String message = (String) props.get("Message");
+
+        Map<String, Object> attributes = new HashMap<>();
+        attributes.put("Response", String.format("Resource message \"%s\"", message));
+
+        Map<String, Object> response = new HashMap<>();
+        response.put("Data", attributes);
+        return response;
+    }
+
+    private Map<String, Object> onUpdate(Map<String, Object> event) {
+        String physicalId = (String) event.get("PhysicalResourceId");
+        @SuppressWarnings("unchecked")
+        Map<String, Object> props = (Map<String, Object>) event.get("ResourceProperties");
+        System.out.println("Update resource " + physicalId + " with props " + props);
+        // Add your update logic here...
+
+        Map<String, Object> response = new HashMap<>();
+        response.put("PhysicalResourceId", physicalId);
+        return response;
+    }
+
+    private Map<String, Object> onDelete(Map<String, Object> event) {
+        String physicalId = (String) event.get("PhysicalResourceId");
+        System.out.println("Delete resource " + physicalId);
+        // Add your delete logic here...
+
+        Map<String, Object> response = new HashMap<>();
+        response.put("PhysicalResourceId", physicalId);
+        return response;
+    }
+}
+
+// Separate class for isComplete handler
+public class CustomResourceIsCompleteHandler implements RequestHandler<Map<String, Object>, Map<String, Object>> {
+
+    @Override
+    public Map<String, Object> handleRequest(Map<String, Object> event, Context context) {
+        String physicalId = (String) event.get("PhysicalResourceId");
+        String requestType = (String) event.get("RequestType");
+
+        // Add your stabilization logic here based on requestType
+        // boolean isReady = ...
+
+        Map<String, Object> response = new HashMap<>();
+        response.put("IsComplete", true);
+        return response;
+    }
+}