Highlight important log messages

Author: zguesmi

src/main/java/com/iexec/worker/Application.java

@@ -9,6 +9,7 @@
 import com.iexec.worker.config.WorkerConfigurationService;
 import com.iexec.worker.feign.CustomFeignClient;
 import com.iexec.worker.result.ResultService;
+import com.iexec.worker.utils.LoggingUtils;
 import com.iexec.worker.utils.version.VersionService;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -87,8 +88,11 @@ public void run(String... args) {
 
         if (!publicConfiguration.getRequiredWorkerVersion().isEmpty() &&
                 !versionService.getVersion().equals(publicConfiguration.getRequiredWorkerVersion())) {
-            log.error("Bad version, please upgrade your iexec-worker [current:{}, required:{}]",
+
+            String message = String.format("Bad version! please upgrade your iexec-worker [current:%s, required:%s]",
                     versionService.getVersion(), publicConfiguration.getRequiredWorkerVersion());
+
+            LoggingUtils.printHighlightedMessage(message);
             System.exit(0);
         }
 

src/main/java/com/iexec/worker/utils/LoggingUtils.java

@@ -0,0 +1,20 @@
+package com.iexec.worker.utils;
+
+import java.util.Collections;
+
+public class LoggingUtils {
+
+
+    public static void printHighlightedMessage(String message) {
+        String hashtagSequence = String.join("", Collections.nCopies(message.length() + 2, "#"));
+        String spaceSequence = String.join("", Collections.nCopies(message.length(), " "));
+
+        System.out.println();
+        System.out.println("#"  +   hashtagSequence    + "#");
+        System.out.println("# " +    spaceSequence     + " #");
+        System.out.println("# " +       message        + " #");
+        System.out.println("# " +    spaceSequence     + " #");
+        System.out.println("#"  +   hashtagSequence    + "#");
+        System.out.println();
+    }
+}