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Refactor HANA access to async and parameterized queries

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This commit is contained in:
metacube
2026-04-17 14:43:15 +02:00
parent 70a54c98d7
commit ad2c6dbd53
5 changed files with 118 additions and 77 deletions
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TrafagSalesExporter/Services/DataSources/HanaDataSourceAdapter.cs
+2 -2
View File
@@ -35,8 +35,8 @@ public sealed class HanaDataSourceAdapter : IDataSourceAdapter
siteId: site.Id, land: site.Land, siteId: site.Id, land: site.Land,
details: exportServer.GetConnectionStringPreview()); details: exportServer.GetConnectionStringPreview());
var records = await Task.Run(() => _hanaService.GetSalesRecords( var records = await _hanaService.GetSalesRecordsAsync(
exportServer, site.Schema, site.TSC, site.Land, context.Settings.DateFilter)); exportServer, site.Schema, site.TSC, site.Land, context.Settings.DateFilter);
return new DataSourceFetchResult { Records = records }; return new DataSourceFetchResult { Records = records };
} }
TrafagSalesExporter/Services/HanaQueryService.cs
+104 -63
View File
@@ -5,6 +5,8 @@ namespace TrafagSalesExporter.Services;
public class HanaQueryService : IHanaQueryService public class HanaQueryService : IHanaQueryService
{ {
private const string TscParameterName = "tsc";
private const string DateFilterParameterName = "dateFilter";
private readonly IAppEventLogService _appEventLogService; private readonly IAppEventLogService _appEventLogService;
public HanaQueryService(IAppEventLogService appEventLogService) public HanaQueryService(IAppEventLogService appEventLogService)
@@ -12,39 +14,42 @@ public class HanaQueryService : IHanaQueryService
_appEventLogService = appEventLogService; _appEventLogService = appEventLogService;
} }
public List<SalesRecord> GetSalesRecords(HanaServer server, public async Task<List<SalesRecord>> GetSalesRecordsAsync(HanaServer server,
string schema, string tsc, string land, string dateFilter) string schema, string tsc, string land, string dateFilter, CancellationToken cancellationToken = default)
{ {
var connectionString = server.BuildConnectionString(); var connectionString = server.BuildConnectionString();
var result = new List<SalesRecord>(); var result = new List<SalesRecord>();
try try
{ {
_appEventLogService.WriteAsync("HANA", "Verbindungsaufbau gestartet", land: land, await _appEventLogService.WriteAsync("HANA", "Verbindungsaufbau gestartet", land: land,
details: $"Server={server.GetConnectionStringPreview()} | Schema={schema} | TSC={tsc}").GetAwaiter().GetResult(); details: $"Server={server.GetConnectionStringPreview()} | Schema={schema} | TSC={tsc}");
using var connection = new HanaConnection(connectionString); using var connection = new HanaConnection(connectionString);
connection.Open(); await connection.OpenAsync(cancellationToken);
_appEventLogService.WriteAsync("HANA", "Verbindung erfolgreich", land: land, await _appEventLogService.WriteAsync("HANA", "Verbindung erfolgreich", land: land,
details: $"Schema={schema} | TSC={tsc}").GetAwaiter().GetResult(); details: $"Schema={schema} | TSC={tsc}");
var invoiceQuery = GetInvoiceQuery(schema, tsc, dateFilter); var invoiceQuery = GetInvoiceQuery(schema);
var creditNoteQuery = GetCreditNoteQuery(schema, tsc, dateFilter); var creditNoteQuery = GetCreditNoteQuery(schema);
var parsedDateFilter = ParseDateFilter(dateFilter);
_appEventLogService.WriteAsync("HANA", "Invoice-Query gestartet", land: land, details: invoiceQuery).GetAwaiter().GetResult(); await _appEventLogService.WriteAsync("HANA", "Invoice-Query gestartet", land: land,
var invoiceRecords = ReadRecords(connection, invoiceQuery, land, "Invoice"); details: BuildQueryLogDetails(invoiceQuery, schema, tsc, parsedDateFilter));
var invoiceRecords = await ReadRecordsAsync(connection, invoiceQuery, tsc, parsedDateFilter, land, "Invoice", cancellationToken);
result.AddRange(invoiceRecords); result.AddRange(invoiceRecords);
_appEventLogService.WriteAsync("HANA", "Invoice-Query beendet", land: land, details: $"Zeilen={invoiceRecords.Count}").GetAwaiter().GetResult(); await _appEventLogService.WriteAsync("HANA", "Invoice-Query beendet", land: land, details: $"Zeilen={invoiceRecords.Count}");
_appEventLogService.WriteAsync("HANA", "Credit-Query gestartet", land: land, details: creditNoteQuery).GetAwaiter().GetResult(); await _appEventLogService.WriteAsync("HANA", "Credit-Query gestartet", land: land,
var creditRecords = ReadRecords(connection, creditNoteQuery, land, "Credit"); details: BuildQueryLogDetails(creditNoteQuery, schema, tsc, parsedDateFilter));
var creditRecords = await ReadRecordsAsync(connection, creditNoteQuery, tsc, parsedDateFilter, land, "Credit", cancellationToken);
result.AddRange(creditRecords); result.AddRange(creditRecords);
_appEventLogService.WriteAsync("HANA", "Credit-Query beendet", land: land, details: $"Zeilen={creditRecords.Count}").GetAwaiter().GetResult(); await _appEventLogService.WriteAsync("HANA", "Credit-Query beendet", land: land, details: $"Zeilen={creditRecords.Count}");
} }
catch (Exception ex) catch (Exception ex)
{ {
_appEventLogService.WriteAsync("HANA", "HANA-Abfrage fehlgeschlagen", "Error", land: land, details: ex.ToString()).GetAwaiter().GetResult(); await _appEventLogService.WriteAsync("HANA", "HANA-Abfrage fehlgeschlagen", "Error", land: land, details: ex.ToString());
throw; throw;
} }
@@ -60,7 +65,7 @@ public class HanaQueryService : IHanaQueryService
return result; return result;
} }
public ConnectionTestResult TestConnectionDetailed(HanaServer server) public async Task<ConnectionTestResult> TestConnectionDetailedAsync(HanaServer server, CancellationToken cancellationToken = default)
{ {
var testResult = new ConnectionTestResult var testResult = new ConnectionTestResult
{ {
@@ -71,20 +76,20 @@ public class HanaQueryService : IHanaQueryService
try try
{ {
_appEventLogService.WriteAsync("HANA", "Verbindungstest gestartet", await _appEventLogService.WriteAsync("HANA", "Verbindungstest gestartet",
details: testResult.ConnectionStringPreview).GetAwaiter().GetResult(); details: testResult.ConnectionStringPreview);
var connectionString = server.BuildConnectionString(); var connectionString = server.BuildConnectionString();
using var connection = new HanaConnection(connectionString); using var connection = new HanaConnection(connectionString);
connection.Open(); await connection.OpenAsync(cancellationToken);
testResult.Stage = "Ping-Query"; testResult.Stage = "Ping-Query";
using var command = new HanaCommand("SELECT 1 FROM DUMMY", connection); using var command = new HanaCommand("SELECT 1 FROM DUMMY", connection);
command.ExecuteScalar(); await command.ExecuteScalarAsync(cancellationToken);
testResult.Success = true; testResult.Success = true;
testResult.Stage = "OK"; testResult.Stage = "OK";
_appEventLogService.WriteAsync("HANA", "Verbindungstest erfolgreich", await _appEventLogService.WriteAsync("HANA", "Verbindungstest erfolgreich",
details: testResult.ConnectionStringPreview).GetAwaiter().GetResult(); details: testResult.ConnectionStringPreview);
return testResult; return testResult;
} }
catch (Exception ex) catch (Exception ex)
@@ -92,24 +97,24 @@ public class HanaQueryService : IHanaQueryService
testResult.Success = false; testResult.Success = false;
testResult.ErrorMessage = ex.Message; testResult.ErrorMessage = ex.Message;
testResult.ExceptionType = ex.GetType().Name; testResult.ExceptionType = ex.GetType().Name;
_appEventLogService.WriteAsync("HANA", "Verbindungstest fehlgeschlagen", "Error", await _appEventLogService.WriteAsync("HANA", "Verbindungstest fehlgeschlagen", "Error",
details: $"{testResult.ConnectionStringPreview}{Environment.NewLine}{ex}").GetAwaiter().GetResult(); details: $"{testResult.ConnectionStringPreview}{Environment.NewLine}{ex}");
return testResult; return testResult;
} }
} }
public void TestConnection(HanaServer server) public async Task TestConnectionAsync(HanaServer server, CancellationToken cancellationToken = default)
{ {
var connectionString = server.BuildConnectionString(); var connectionString = server.BuildConnectionString();
using var connection = new HanaConnection(connectionString); using var connection = new HanaConnection(connectionString);
connection.Open(); await connection.OpenAsync(cancellationToken);
} }
public List<string> GetAvailableSchemas(HanaServer server) public async Task<List<string>> GetAvailableSchemasAsync(HanaServer server, CancellationToken cancellationToken = default)
{ {
var connectionString = server.BuildConnectionString(); var connectionString = server.BuildConnectionString();
using var connection = new HanaConnection(connectionString); using var connection = new HanaConnection(connectionString);
connection.Open(); await connection.OpenAsync(cancellationToken);
const string query = """ const string query = """
SELECT schema_name SELECT schema_name
@@ -124,10 +129,10 @@ public class HanaQueryService : IHanaQueryService
"""; """;
using var command = new HanaCommand(query, connection); using var command = new HanaCommand(query, connection);
using var reader = command.ExecuteReader(); using var reader = await command.ExecuteReaderAsync(cancellationToken);
var schemas = new List<string>(); var schemas = new List<string>();
while (reader.Read()) while (await reader.ReadAsync(cancellationToken))
{ {
var schema = reader["schema_name"]?.ToString()?.Trim(); var schema = reader["schema_name"]?.ToString()?.Trim();
if (!string.IsNullOrWhiteSpace(schema)) if (!string.IsNullOrWhiteSpace(schema))
@@ -137,15 +142,17 @@ public class HanaQueryService : IHanaQueryService
return schemas; return schemas;
} }
private List<SalesRecord> ReadRecords(HanaConnection connection, string query, string land, string queryName) private async Task<List<SalesRecord>> ReadRecordsAsync(HanaConnection connection, string query, string tsc, DateTime dateFilter, string land, string queryName, CancellationToken cancellationToken)
{ {
var records = new List<SalesRecord>(); var records = new List<SalesRecord>();
using var command = new HanaCommand(query, connection); using var command = new HanaCommand(query, connection);
using var reader = command.ExecuteReader(); command.Parameters.Add(new HanaParameter(TscParameterName, HanaDbType.NVarChar) { Value = tsc });
command.Parameters.Add(new HanaParameter(DateFilterParameterName, HanaDbType.Date) { Value = dateFilter.Date });
using var reader = await command.ExecuteReaderAsync(cancellationToken);
var counter = 0; var counter = 0;
while (reader.Read()) while (await reader.ReadAsync(cancellationToken))
{ {
records.Add(new SalesRecord records.Add(new SalesRecord
{ {
@@ -180,18 +187,21 @@ public class HanaQueryService : IHanaQueryService
counter++; counter++;
if (counter % 250 == 0) if (counter % 250 == 0)
{ {
_appEventLogService.WriteDebugAsync("HANA", $"{queryName}-Query liest Daten", land: land, await _appEventLogService.WriteDebugAsync("HANA", $"{queryName}-Query liest Daten", land: land,
details: $"Bisher gelesene Zeilen={counter}").GetAwaiter().GetResult(); details: $"Bisher gelesene Zeilen={counter}");
} }
} }
return records; return records;
} }
private static string GetInvoiceQuery(string schema, string tsc, string dateFilter) => $@" private static string GetInvoiceQuery(string schema)
{
var quotedSchema = QuoteIdentifier(schema);
return $@"
SELECT SELECT
CURRENT_TIMESTAMP AS extraction_date, CURRENT_TIMESTAMP AS extraction_date,
'{tsc}' AS tsc, :{TscParameterName} AS tsc,
h.""DocNum"" AS invoice_number, h.""DocNum"" AS invoice_number,
p.""LineNum"" AS invoice_position, p.""LineNum"" AS invoice_position,
h.""DocDate"" AS invoice_date, h.""DocDate"" AS invoice_date,
@@ -216,30 +226,34 @@ SELECT
'' AS incoterms_2020, '' AS incoterms_2020,
COALESCE(emp.""SlpName"", '') AS sales_responsible, COALESCE(emp.""SlpName"", '') AS sales_responsible,
CASE WHEN p.""BaseType"" = 17 CASE WHEN p.""BaseType"" = 17
THEN (SELECT o.""DocDate"" FROM {schema}.""ORDR"" o THEN (SELECT o.""DocDate"" FROM {quotedSchema}.""ORDR"" o
WHERE o.""DocEntry"" = p.""BaseEntry"") WHERE o.""DocEntry"" = p.""BaseEntry"")
ELSE NULL END AS order_date, ELSE NULL END AS order_date,
'INV' AS doc_type 'INV' AS doc_type
FROM {schema}.""OINV"" h FROM {quotedSchema}.""OINV"" h
INNER JOIN {schema}.""INV1"" p ON h.""DocEntry"" = p.""DocEntry"" INNER JOIN {quotedSchema}.""INV1"" p ON h.""DocEntry"" = p.""DocEntry""
LEFT JOIN {schema}.""OITM"" itm ON p.""ItemCode"" = itm.""ItemCode"" LEFT JOIN {quotedSchema}.""OITM"" itm ON p.""ItemCode"" = itm.""ItemCode""
LEFT JOIN {schema}.""OITB"" grp ON itm.""ItmsGrpCod"" = grp.""ItmsGrpCod"" LEFT JOIN {quotedSchema}.""OITB"" grp ON itm.""ItmsGrpCod"" = grp.""ItmsGrpCod""
LEFT JOIN {schema}.""OCRD"" cust ON h.""CardCode"" = cust.""CardCode"" LEFT JOIN {quotedSchema}.""OCRD"" cust ON h.""CardCode"" = cust.""CardCode""
LEFT JOIN {schema}.""CRD1"" cust_adr ON h.""CardCode"" = cust_adr.""CardCode"" LEFT JOIN {quotedSchema}.""CRD1"" cust_adr ON h.""CardCode"" = cust_adr.""CardCode""
AND cust_adr.""AdresType"" = 'B' AND cust_adr.""Address"" = h.""PayToCode"" AND cust_adr.""AdresType"" = 'B' AND cust_adr.""Address"" = h.""PayToCode""
LEFT JOIN {schema}.""OOND"" ind ON cust.""IndustryC"" = ind.""IndCode"" LEFT JOIN {quotedSchema}.""OOND"" ind ON cust.""IndustryC"" = ind.""IndCode""
LEFT JOIN {schema}.""OCRD"" sup ON itm.""CardCode"" = sup.""CardCode"" LEFT JOIN {quotedSchema}.""OCRD"" sup ON itm.""CardCode"" = sup.""CardCode""
AND sup.""CardType"" = 'S' AND sup.""CardType"" = 'S'
LEFT JOIN {schema}.""CRD1"" sup_adr ON itm.""CardCode"" = sup_adr.""CardCode"" LEFT JOIN {quotedSchema}.""CRD1"" sup_adr ON itm.""CardCode"" = sup_adr.""CardCode""
AND sup_adr.""AdresType"" = 'B' AND sup_adr.""AdresType"" = 'B'
LEFT JOIN {schema}.""OSLP"" emp ON h.""SlpCode"" = emp.""SlpCode"" LEFT JOIN {quotedSchema}.""OSLP"" emp ON h.""SlpCode"" = emp.""SlpCode""
WHERE h.""CANCELED"" = 'N' AND h.""DocDate"" >= '{dateFilter}' WHERE h.""CANCELED"" = 'N' AND h.""DocDate"" >= :{DateFilterParameterName}
ORDER BY h.""DocDate"" DESC, h.""DocNum"", p.""LineNum"""; ORDER BY h.""DocDate"" DESC, h.""DocNum"", p.""LineNum""";
}
private static string GetCreditNoteQuery(string schema, string tsc, string dateFilter) => $@" private static string GetCreditNoteQuery(string schema)
{
var quotedSchema = QuoteIdentifier(schema);
return $@"
SELECT SELECT
CURRENT_TIMESTAMP AS extraction_date, CURRENT_TIMESTAMP AS extraction_date,
'{tsc}' AS tsc, :{TscParameterName} AS tsc,
h.""DocNum"" AS invoice_number, h.""DocNum"" AS invoice_number,
p.""LineNum"" AS invoice_position, p.""LineNum"" AS invoice_position,
h.""DocDate"" AS invoice_date, h.""DocDate"" AS invoice_date,
@@ -263,21 +277,48 @@ SELECT
COALESCE(emp.""SlpName"", '') AS sales_responsible, COALESCE(emp.""SlpName"", '') AS sales_responsible,
NULL AS order_date, NULL AS order_date,
'CRN' AS doc_type 'CRN' AS doc_type
FROM {schema}.""ORIN"" h FROM {quotedSchema}.""ORIN"" h
INNER JOIN {schema}.""RIN1"" p ON h.""DocEntry"" = p.""DocEntry"" INNER JOIN {quotedSchema}.""RIN1"" p ON h.""DocEntry"" = p.""DocEntry""
LEFT JOIN {schema}.""OITM"" itm ON p.""ItemCode"" = itm.""ItemCode"" LEFT JOIN {quotedSchema}.""OITM"" itm ON p.""ItemCode"" = itm.""ItemCode""
LEFT JOIN {schema}.""OITB"" grp ON itm.""ItmsGrpCod"" = grp.""ItmsGrpCod"" LEFT JOIN {quotedSchema}.""OITB"" grp ON itm.""ItmsGrpCod"" = grp.""ItmsGrpCod""
LEFT JOIN {schema}.""OCRD"" cust ON h.""CardCode"" = cust.""CardCode"" LEFT JOIN {quotedSchema}.""OCRD"" cust ON h.""CardCode"" = cust.""CardCode""
LEFT JOIN {schema}.""CRD1"" cust_adr ON h.""CardCode"" = cust_adr.""CardCode"" LEFT JOIN {quotedSchema}.""CRD1"" cust_adr ON h.""CardCode"" = cust_adr.""CardCode""
AND cust_adr.""AdresType"" = 'B' AND cust_adr.""Address"" = h.""PayToCode"" AND cust_adr.""AdresType"" = 'B' AND cust_adr.""Address"" = h.""PayToCode""
LEFT JOIN {schema}.""OOND"" ind ON cust.""IndustryC"" = ind.""IndCode"" LEFT JOIN {quotedSchema}.""OOND"" ind ON cust.""IndustryC"" = ind.""IndCode""
LEFT JOIN {schema}.""OCRD"" sup ON itm.""CardCode"" = sup.""CardCode"" LEFT JOIN {quotedSchema}.""OCRD"" sup ON itm.""CardCode"" = sup.""CardCode""
AND sup.""CardType"" = 'S' AND sup.""CardType"" = 'S'
LEFT JOIN {schema}.""CRD1"" sup_adr ON itm.""CardCode"" = sup_adr.""CardCode"" LEFT JOIN {quotedSchema}.""CRD1"" sup_adr ON itm.""CardCode"" = sup_adr.""CardCode""
AND sup_adr.""AdresType"" = 'B' AND sup_adr.""AdresType"" = 'B'
LEFT JOIN {schema}.""OSLP"" emp ON h.""SlpCode"" = emp.""SlpCode"" LEFT JOIN {quotedSchema}.""OSLP"" emp ON h.""SlpCode"" = emp.""SlpCode""
WHERE h.""CANCELED"" = 'N' AND h.""DocDate"" >= '{dateFilter}' WHERE h.""CANCELED"" = 'N' AND h.""DocDate"" >= :{DateFilterParameterName}
ORDER BY h.""DocDate"" DESC, h.""DocNum"", p.""LineNum"""; ORDER BY h.""DocDate"" DESC, h.""DocNum"", p.""LineNum""";
}
private static DateTime ParseDateFilter(string dateFilter)
{
if (DateTime.TryParse(dateFilter, out var parsed))
return parsed.Date;
throw new InvalidOperationException($"Ungueltiger HANA-DateFilter: '{dateFilter}'. Erwartet wird ein parsebares Datum.");
}
private static string BuildQueryLogDetails(string query, string schema, string tsc, DateTime dateFilter)
=> $"{query}{Environment.NewLine}-- schema={schema}; tsc={tsc}; dateFilter={dateFilter:yyyy-MM-dd}";
private static string QuoteIdentifier(string identifier)
{
var value = identifier?.Trim() ?? string.Empty;
if (string.IsNullOrWhiteSpace(value))
throw new InvalidOperationException("HANA-Schema darf nicht leer sein.");
foreach (var ch in value)
{
if (!(char.IsLetterOrDigit(ch) || ch == '_'))
throw new InvalidOperationException($"Ungueltiger HANA-Identifier: '{identifier}'.");
}
return $@"""{value}""";
}
} }
public class ConnectionTestResult public class ConnectionTestResult
TrafagSalesExporter/Services/IHanaQueryService.cs
+4 -4
View File
@@ -4,8 +4,8 @@ namespace TrafagSalesExporter.Services;
public interface IHanaQueryService public interface IHanaQueryService
{ {
List<SalesRecord> GetSalesRecords(HanaServer server, string schema, string tsc, string land, string dateFilter); Task<List<SalesRecord>> GetSalesRecordsAsync(HanaServer server, string schema, string tsc, string land, string dateFilter, CancellationToken cancellationToken = default);
List<string> GetAvailableSchemas(HanaServer server); Task<List<string>> GetAvailableSchemasAsync(HanaServer server, CancellationToken cancellationToken = default);
ConnectionTestResult TestConnectionDetailed(HanaServer server); Task<ConnectionTestResult> TestConnectionDetailedAsync(HanaServer server, CancellationToken cancellationToken = default);
void TestConnection(HanaServer server); Task TestConnectionAsync(HanaServer server, CancellationToken cancellationToken = default);
} }
TrafagSalesExporter/Services/SettingsPageService.cs
+1 -1
View File
@@ -236,7 +236,7 @@ public sealed class SettingsPageService : ISettingsPageService
AdditionalParams = centralServer.AdditionalParams AdditionalParams = centralServer.AdditionalParams
}; };
var result = await Task.Run(() => _hanaService.TestConnectionDetailed(testServer)); var result = await _hanaService.TestConnectionDetailedAsync(testServer);
return result.Success return result.Success
? PageActionResult.SuccessResult($"{sourceSystem}: Zentrale HANA-Verbindung erfolgreich.") ? PageActionResult.SuccessResult($"{sourceSystem}: Zentrale HANA-Verbindung erfolgreich.")
: PageActionResult.ErrorResult($"{sourceSystem}: {result.ExceptionType} - {result.ErrorMessage}"); : PageActionResult.ErrorResult($"{sourceSystem}: {result.ExceptionType} - {result.ErrorMessage}");
TrafagSalesExporter/Services/StandortePageService.cs
+7 -7
View File
@@ -150,7 +150,7 @@ public sealed class StandortePageService : IStandortePageService
}; };
await _appEventLogService.WriteAsync("HANA", "Server-Test aus UI gestartet", details: testServer.GetConnectionStringPreview()); await _appEventLogService.WriteAsync("HANA", "Server-Test aus UI gestartet", details: testServer.GetConnectionStringPreview());
return await Task.Run(() => _hanaService.TestConnectionDetailed(testServer)); return await _hanaService.TestConnectionDetailedAsync(testServer);
} }
public async Task<StandortEditorState> LoadSiteEditorAsync(Site site, IEnumerable<SourceSystemDefinition> sourceSystems) public async Task<StandortEditorState> LoadSiteEditorAsync(Site site, IEnumerable<SourceSystemDefinition> sourceSystems)
@@ -263,12 +263,12 @@ public sealed class StandortePageService : IStandortePageService
AdditionalParams = centralServer.AdditionalParams AdditionalParams = centralServer.AdditionalParams
}; };
return await Task.Run(() => _hanaService.GetAvailableSchemas(lookupServer)) var schemas = await _hanaService.GetAvailableSchemasAsync(lookupServer);
.ContinueWith(task => task.Result return schemas
.Where(x => !string.IsNullOrWhiteSpace(x)) .Where(x => !string.IsNullOrWhiteSpace(x))
.Distinct(StringComparer.OrdinalIgnoreCase) .Distinct(StringComparer.OrdinalIgnoreCase)
.OrderBy(x => x, StringComparer.OrdinalIgnoreCase) .OrderBy(x => x, StringComparer.OrdinalIgnoreCase)
.ToList()); .ToList();
} }
public async Task<SapEntitySetRefreshResult> RefreshSapEntitySetsAsync(Site site) public async Task<SapEntitySetRefreshResult> RefreshSapEntitySetsAsync(Site site)