create rspec when api is ready

src/main/java/org/etsi/osl/metrico/services/MetricoService.java

@@ -15,6 +15,7 @@ import org.etsi.osl.tmf.common.model.ELifecycle;
 import org.etsi.osl.tmf.common.model.EValueType;
 import org.etsi.osl.tmf.common.model.service.ResourceRef;
 import org.etsi.osl.tmf.pm628.model.*;
+import org.etsi.osl.tmf.rcm634.model.LogicalResourceSpecification;
 import org.etsi.osl.tmf.rcm634.model.ResourceSpecificationCreate;
 import org.etsi.osl.tmf.ri639.model.LogicalResource;
 import org.etsi.osl.tmf.ri639.model.Resource;
@@ -124,8 +125,16 @@ public class MetricoService extends RouteBuilder {
       rsc.addResourceSpecificationCharacteristicItemShort( "_MT_URL", "", EValueType.TEXT.getValue(), "Used for providing the prometheus URL", false);
       
       
-      prometheusQueries.createOrUpdateResourceSpecByNameCategoryVersion(rsc);
-      
+      LogicalResourceSpecification result = prometheusQueries.createOrUpdateResourceSpecByNameCategoryVersion(rsc);
+      while ( result == null ) {
+        try {
+            logger.info("Cannot get resource for registerMetricoResourceSpec. Retrying in 10 seconds" );
+            Thread.sleep( 10000 );
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        result = prometheusQueries.createOrUpdateResourceSpecByNameCategoryVersion(rsc);
+      }
     }