PR for spring-mobile (#1062)

* rest with spark java

* 4

spring-mobile/src/main/java/com/baeldung/controller/IndexController.java

@@ -0,0 +1,40 @@
+package com.baeldung.controller;
+
+import java.util.logging.Logger;
+
+import org.springframework.mobile.device.Device;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
+@Controller
+public class IndexController {
+	
+	private final static Logger LOGGER = Logger.getLogger(IndexController.class.getName());
+
+	@GetMapping("/")
+    public String greeting(Device device) {
+		
+		String deviceType = "browser";
+		String platform = "browser";
+		
+        if (device.isNormal()) {
+            deviceType = "browser";
+        } else if (device.isMobile()) {
+            deviceType = "mobile";
+        } else if (device.isTablet()) {
+            deviceType = "tablet";
+        }
+        
+        platform = device.getDevicePlatform().name();
+        
+        if (platform.equalsIgnoreCase("UNKNOWN")) {
+        	platform = "browser";
+		}
+        
+        LOGGER.info("Client Device Type: " + deviceType +", Platform: " + platform);
+        
+		
+        return "index";
+    }
+	
+}