Add Stream processing example

spring-cloud-data-flow/log-sink/src/main/java/org/baeldung/spring/cloud/LogSinkApplication.java

@@ -0,0 +1,26 @@
+package org.baeldung.spring.cloud;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.stream.annotation.EnableBinding;
+import org.springframework.cloud.stream.annotation.StreamListener;
+import org.springframework.cloud.stream.messaging.Sink;
+
+@EnableBinding(Sink.class)
+@SpringBootApplication
+public class LogSinkApplication {
+
+	private static Logger logger = LoggerFactory.getLogger(LogSinkApplication.class);
+
+	@StreamListener(Sink.INPUT)
+	public void loggerSink(String date) {
+
+		logger.info("Received: " + date);
+	}
+
+	public static void main(String[] args) {
+		SpringApplication.run(LogSinkApplication.class, args);
+	}
+}

spring-cloud-data-flow/log-sink/src/test/java/org/baeldung/spring/cloud/LogSinkApplicationTests.java

@@ -0,0 +1,16 @@
+package org.baeldung.spring.cloud;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class LogSinkApplicationTests {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}