Move all file in fr.dcproject.

src/main/kotlin/fr/dcproject/common/utils/waitElastic.kt

@@ -0,0 +1,28 @@
+package fr.dcproject.common.utils
+
+import org.elasticsearch.client.Request
+import org.elasticsearch.client.RestClient
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+
+fun RestClient.waitElasticsearchIsUp() {
+    val logger: Logger = LoggerFactory.getLogger("fr.dcproject.elasticsearch")
+    val request = Request("GET", "/_cluster/health")
+    repeat(5 * 60 / 2) { // 5 minutes
+        runCatching {
+            performRequest(request).statusLine.statusCode
+        }.onSuccess {
+            if (it == 200) {
+                logger.debug("Elasticsearch is Ready! Continue...")
+                return
+            } else {
+                logger.debug("sleep 2s and retry...")
+                Thread.sleep(2000)
+            }
+        }.onFailure {
+            logger.debug("${it.message}, sleep 2s and retry...")
+            Thread.sleep(2000)
+        }
+    }
+    error("Elasticsearch is not ready")
+}