Merge pull request #176 from PxTools/feature/db-connection-health-check

Added method to check if the connection to the configured database is ok

Author: likp

PCAxis.Sql/ApiUtils/ApiUtilStatic.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Text.RegularExpressions;
 
+using PCAxis.Sql.DbClient;
 using PCAxis.Sql.DbConfig;
 using PCAxis.Sql.Models;
 using PCAxis.Sql.Repositories;
@@ -91,6 +92,25 @@ public static List<string> GetTablesPublishedBetween(DateTime from, DateTime to)
             return TablesPublishedBetweenRepositoryStatic.GetTablesPublishedBetween(from, to);
         }
 
+        public static bool IsDbConnectionHealthy(string queryText)
+        {
+            try
+            {
+                // Try to get the default database config and check if it can connect
+                var config = SqlDbConfigsStatic.DefaultDatabase;
+                InfoForDbConnection info = config.GetInfoForDbConnection(config.GetDefaultConnString());
+                using (var cmd = new PxSqlCommandForTempTables(info.DataBaseType, info.DataProvider, info.ConnectionString))
+                {
+                    cmd.ExecuteSelect(queryText);
+                }
+                return true;
+            }
+            catch (Exception)
+            {
+                return false;
+            }
+        }
+
 
         private static string ValidateLangCodeString(string input)
         {