fix: add previous default config + checkstyle

Signed-off-by: LE SAULNIER Kevin <kevin.lesaulnier@rte-france.com>

src/main/java/org/gridsuite/directory/server/elasticsearch/ESConfig.java

@@ -9,7 +9,10 @@
 /**
  * @author Ghazwa Rehili <ghazwa.rehili at rte-france.com>
  */
-public class ESConfig {
+public final class ESConfig {
+    private ESConfig() {
+        throw new UnsupportedOperationException("This is a utility class and cannot be instantiated");
+    }
 
     // It's not simple SPEL but this syntax is managed by both ES and Spring
     public static final String DIRECTORY_ELEMENT_INFOS_INDEX_NAME = "#{@environment.getProperty('powsybl-ws.elasticsearch.index.prefix')}directory-elements";

src/main/resources/application-local.yml

@@ -9,6 +9,8 @@ spring:
   elasticsearch:
     uris:
       - http://localhost:9200
+    connection-timeout: 60s
+    socket-timeout: 60s
   ## to fill if authentication is needed
   # username:
   # password:

src/test/java/org/gridsuite/directory/server/DirectoryTest.java

@@ -29,7 +29,6 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.cloud.stream.binder.test.InputDestination;