Merge pull request #8125 from eugenp/revert-8119-BAEL-3275-2

Revert "BAEL-3275: Using blocking queue for pub-sub"

spring-cloud/spring-cloud-functions/src/main/java/com/baeldung/spring/cloudfunction/aws/CloudFunctionAwsApplication.java

@@ -0,0 +1,23 @@
+package com.baeldung.spring.cloudfunction.aws;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+
+import java.util.function.Consumer;
+import java.util.function.Function;
+import java.util.function.Supplier;
+
+@SpringBootApplication
+public class CloudFunctionAwsApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(CloudFunctionAwsApplication.class, args);
+    }
+
+    @Bean
+    public Function<String, String> reverseString() {
+        return value -> new StringBuilder(value).reverse().toString();
+    }
+
+}

spring-cloud/spring-cloud-functions/src/main/java/com/baeldung/spring/cloudfunction/aws/StringReverseHandler.java

@@ -0,0 +1,7 @@
+package com.baeldung.spring.cloudfunction.aws;
+
+import org.springframework.cloud.function.adapter.aws.SpringBootRequestHandler;
+
+public class StringReverseHandler extends SpringBootRequestHandler<String, String> {
+
+}

spring-cloud/spring-cloud-functions/src/main/java/com/baeldung/spring/cloudfunction/aws/functions/Greeter.java

@@ -0,0 +1,11 @@
+package com.baeldung.spring.cloudfunction.functions.aws;
+
+import java.util.function.Function;
+
+public class Greeter implements Function<String, String> {
+
+    @Override
+    public String apply(String s) {
+        return "Hello " + s + ", and welcome to Spring Cloud Function!!!";
+    }
+}

spring-cloud/spring-cloud-functions/src/main/resources/application.properties

@@ -0,0 +1 @@
+spring.cloud.function.scan.packages: com.baeldung.spring.cloudfunction.functions.aws