Refactoring multi-io samples as functions

multi-functions-samples/multi-functions-kafka/src/main/java/demo/MultipleFunctionsApplication.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2015-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package demo;
+
+import java.util.function.Consumer;
+import java.util.function.Supplier;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+
+@SpringBootApplication
+public class MultipleFunctionsApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(MultipleFunctionsApplication.class, args);
+	}
+
+	@Bean
+	public Consumer<String> sink1() {
+		return message -> {
+			System.out.println("******************");
+			System.out.println("At Sink1");
+			System.out.println("******************");
+			System.out.println("Received message " + message);
+		};
+	}
+
+	@Bean
+	public Consumer<String> sink2() {
+		return message -> {
+			System.out.println("******************");
+			System.out.println("At Sink2");
+			System.out.println("******************");
+			System.out.println("Received message " + message);
+		};
+	}
+
+	@Bean
+	public Supplier<String> source1() {
+		return () -> {
+			String message = "FromSource1";
+			System.out.println("******************");
+			System.out.println("From Source1");
+			System.out.println("******************");
+			System.out.println("Sending value: " + message);
+			return message;
+
+		};
+	}
+
+	@Bean
+	public Supplier<String> source2() {
+		return () -> {
+			String message = "FromSource2";
+			System.out.println("******************");
+			System.out.println("From Source2");
+			System.out.println("******************");
+			System.out.println("Sending value: " + message);
+			return message;
+
+		};
+	}
+
+}