check URL API (teamdigitale#76)

build.gradle

@@ -169,7 +169,7 @@ jacocoTestCoverageVerification {
                     'it.gov.innovazione.ndc.model.profiles.*',
                     'it.gov.innovazione.ndc.gen.*',
                     'it.gov.innovazione.ndc.validator.BaseSemanticAssetValidator',
-                    'it.gov.innovazione.ndc.controller.exception.*'
+                    'it.gov.innovazione.ndc.controller.*'
             ]
         }
     }

src/main/java/it/gov/innovazione/ndc/controller/CheckUrlController.java

@@ -0,0 +1,28 @@
+package it.gov.innovazione.ndc.controller;
+
+import lombok.SneakyThrows;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+@RestController
+@RequestMapping("check-url")
+@Slf4j
+public class CheckUrlController {
+    @GetMapping
+    @SneakyThrows
+    public ResponseEntity<?> check(@RequestParam String url) {
+        log.info("Checking url {}", url);
+        HttpURLConnection huc = (HttpURLConnection) new URL(url).openConnection();
+        huc.setConnectTimeout(5000);
+        log.info("Response code for url {} is : {}", url, huc.getResponseCode());
+        return new ResponseEntity<>(HttpStatus.valueOf(huc.getResponseCode()));
+    }
+}