Modified funuction to use POJO as input

- created Person POJO in a different package
- modified function to use such pojo
- added TypeHint to the main
- updated docs

Author: olegz

samples/cloud-function-aws/README.md

@@ -26,9 +26,11 @@ $> ./build.sh
 
 ```
 
+>>NOTE: You will notice we apply `@TypeHint(types = {Person.class}` (see `DemoApplication`). Given that JSON converter will apply reflection to serialize/de-serialize `Person` type for the function input we need to provide minimal reflection configuration and `@TypeHint` will let us do just that.
+
 ### Deploy and test
 
 - Navigate to AWS Lambda dashboard and create a new function (name it anyway you want).
 - In "Runtime" go to `Custom Runtime` and select one of the options available.
 - Upload generated `cloud-function-aws-0.0.1-SNAPSHOT-native-zip.zip`.
-- Finally test by providing JSON-style string value via 'Test' tab. For example `"John"`. The output should be `"Hi John!"`
+- Finally test by providing JSON-style string value via 'Test' tab. For example `"John"`. The output should be `"Hi JOHN!"`

samples/cloud-function-aws/src/main/java/com/example/demo/DemoApplication.java

@@ -2,7 +2,11 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.nativex.hint.TypeHint;
 
+import com.example.demo.domain.Person;
+
+@TypeHint(types = {Person.class})
 @SpringBootApplication
 public class DemoApplication {
 

samples/cloud-function-aws/src/main/java/com/example/demo/Foobar.java

@@ -0,0 +1,16 @@
+package com.example.demo;
+
+import java.util.function.Function;
+
+import org.springframework.stereotype.Component;
+
+import com.example.demo.domain.Person;
+
+@Component
+public class NameUppercaser implements Function<Person, String> {
+
+    @Override
+    public String apply(Person input) {
+        return "hi " + input.getName().toUpperCase() + "!";
+    }
+}

samples/cloud-function-aws/src/main/java/com/example/demo/NameUppercaser.java

@@ -0,0 +1,18 @@
+package com.example.demo.domain;
+
+public class Person {
+	private String name;
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	@Override
+	public String toString() {
+		return name;
+	}
+}