diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTService.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTService.java
index 3b554c5..2020d09 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTService.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTService.java
@@ -1469,4 +1469,14 @@ public interface TDGWTService extends RemoteService {
 	public String startGeometryCreatePoint(GeometryCreatePointSession geometryCreatePointSession)
 			throws TDGWTServiceException;
 
+	/**
+	 * Retrieve the URL of default SDMX Registry
+	 * 
+	 * 
+	 * @return URL of the default SDMX Registry
+	 * @throws TDGWTServiceException
+	 *             Exception
+	 */
+	public String getDefaultSDMXRegistryURL() throws TDGWTServiceException;
+
 }
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTServiceAsync.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTServiceAsync.java
index 6be95ee..cc6dd0d 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTServiceAsync.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/client/rpc/TDGWTServiceAsync.java
@@ -97,8 +97,7 @@ import com.google.gwt.user.client.rpc.AsyncCallback;
 
 public interface TDGWTServiceAsync {
 
-	public static TDGWTServiceAsync INSTANCE = (TDGWTServiceAsync) GWT
-			.create(TDGWTService.class);
+	public static TDGWTServiceAsync INSTANCE = (TDGWTServiceAsync) GWT.create(TDGWTService.class);
 
 	void hello(AsyncCallback<UserInfo> callback);
 
@@ -108,21 +107,18 @@ public interface TDGWTServiceAsync {
 
 	void restoreUISession(TRId startTRId, AsyncCallback<TRId> callback);
 
-	void getUriFromResolver(UriResolverSession uriResolverSession,
-			AsyncCallback<String> callback);
+	void getUriFromResolver(UriResolverSession uriResolverSession, AsyncCallback<String> callback);
 
 	void getVREFolderIdByScope(AsyncCallback<String> callback);
 
 	// PeriodDataType
 	void getPeriodDataTypes(AsyncCallback<ArrayList<PeriodDataType>> callback);
 
-	void getHierarchicalRelationshipForPeriodDataTypes(
-			PeriodDataType periodDataType,
+	void getHierarchicalRelationshipForPeriodDataTypes(PeriodDataType periodDataType,
 			AsyncCallback<ArrayList<PeriodDataType>> callback);
 
 	// ValueDataFormat
-	void getValueDataFormatsMap(
-			AsyncCallback<HashMap<ColumnDataType, ArrayList<ValueDataFormat>>> callback);
+	void getValueDataFormatsMap(AsyncCallback<HashMap<ColumnDataType, ArrayList<ValueDataFormat>>> callback);
 
 	void getValueDataFormatsOfColumnDataType(ColumnDataType columnDataType,
 			AsyncCallback<ArrayList<ValueDataFormat>> callback);
@@ -130,8 +126,7 @@ public interface TDGWTServiceAsync {
 	// TabularResource
 	void getCurrentTRId(AsyncCallback<TRId> callback);
 
-	void createTabularResource(TabResource tabResource,
-			AsyncCallback<TabResource> callback);
+	void createTabularResource(TabResource tabResource, AsyncCallback<TabResource> callback);
 
 	void removeTabularResource(TRId trId, AsyncCallback<Void> callback);
 
@@ -141,11 +136,9 @@ public interface TDGWTServiceAsync {
 
 	void getTabResourceInformation(AsyncCallback<TabResource> callback);
 
-	void getTabResourceInformation(TRId trId,
-			AsyncCallback<TabResource> callback);
+	void getTabResourceInformation(TRId trId, AsyncCallback<TabResource> callback);
 
-	void setTabResourceInformation(TabResource tabResource,
-			AsyncCallback<Void> callback);
+	void setTabResourceInformation(TabResource tabResource, AsyncCallback<Void> callback);
 
 	void setTabResourceToFinal(TRId trId, AsyncCallback<Void> callback);
 
@@ -155,103 +148,83 @@ public interface TDGWTServiceAsync {
 
 	void getTabularResources(AsyncCallback<ArrayList<TabResource>> callback);
 
-	void getTabularResourcesAndLastTables(
-			AsyncCallback<ArrayList<TabResource>> callback);
+	void getTabularResourcesAndLastTables(AsyncCallback<ArrayList<TabResource>> callback);
 
 	void getLastTable(TRId trId, AsyncCallback<TableData> callback);
 
 	void getTable(TRId trId, AsyncCallback<TableData> callback);
 
-	void getTableMetadata(TRId trId,
-			AsyncCallback<ArrayList<TabMetadata>> callback);
+	void getTableMetadata(TRId trId, AsyncCallback<ArrayList<TabMetadata>> callback);
 
 	void getTRMetadata(TRId trId, AsyncCallback<ArrayList<TRMetadata>> callback);
 
-	void getTimeTableId(PeriodDataType periodDataType,
-			AsyncCallback<Long> callback);
+	void getTimeTableId(PeriodDataType periodDataType, AsyncCallback<Long> callback);
 
 	void getColumns(AsyncCallback<ArrayList<ColumnData>> callback);
 
 	void getColumns(TRId trId, AsyncCallback<ArrayList<ColumnData>> callback);
 
-	void getColumnWithViewColumnIncluded(TRId trId,
-			AsyncCallback<ArrayList<ColumnData>> callback);
+	void getColumnWithViewColumnIncluded(TRId trId, AsyncCallback<ArrayList<ColumnData>> callback);
 
-	void getColumnWithOnlyViewColumnInRel(TRId trId,
-			AsyncCallback<ArrayList<ColumnData>> callback);
+	void getColumnWithOnlyViewColumnInRel(TRId trId, AsyncCallback<ArrayList<ColumnData>> callback);
 
-	void getColumnsForStatistical(TRId trId,
-			AsyncCallback<ArrayList<ColumnData>> callback);
+	void getColumnsForStatistical(TRId trId, AsyncCallback<ArrayList<ColumnData>> callback);
 
-	void getColumnsForDimension(TRId trId,
-			AsyncCallback<ArrayList<ColumnData>> callback);
+	void getColumnsForDimension(TRId trId, AsyncCallback<ArrayList<ColumnData>> callback);
 
-	void getColumn(TRId trId, String columnName,
-			AsyncCallback<ColumnData> callback);
+	void getColumn(TRId trId, String columnName, AsyncCallback<ColumnData> callback);
 
-	void getColumn(String columnLocalId, TRId trId,
-			AsyncCallback<ColumnData> callback);
+	void getColumn(String columnLocalId, TRId trId, AsyncCallback<ColumnData> callback);
 
 	void getConnection(RefColumn refColumn, AsyncCallback<ColumnData> callback);
 
 	void closeAllTabularResources(AsyncCallback<Void> callback);
 
-	void closeTabularResourceAndOpen(TRId openTRId, TRId closeTRId,
-			AsyncCallback<Void> callback);
+	void closeTabularResourceAndOpen(TRId openTRId, TRId closeTRId, AsyncCallback<Void> callback);
 
 	void closeTabularResource(TRId closeTRId, AsyncCallback<Void> callback);
 
 	void setActiveTabularResource(TRId activeTRId, AsyncCallback<TRId> callback);
 
 	// Task
-	void startTaskResubmit(TaskResubmitSession taskResubmitSession,
-			AsyncCallback<String> callback);
+	void startTaskResubmit(TaskResubmitSession taskResubmitSession, AsyncCallback<String> callback);
 
-	void startTaskResume(TaskResumeSession taskResumeSession,
-			AsyncCallback<String> callback);
+	void startTaskResume(TaskResumeSession taskResumeSession, AsyncCallback<String> callback);
 
 	// Validations
-	void getValidationsTasksMetadata(TRId trId,
-			AsyncCallback<ValidationsTasksMetadata> callback);
+	void getValidationsTasksMetadata(TRId trId, AsyncCallback<ValidationsTasksMetadata> callback);
 
-	void getTableValidationsMetadata(TRId trId,
-			AsyncCallback<TabValidationsMetadata> callback);
+	void getTableValidationsMetadata(TRId trId, AsyncCallback<TabValidationsMetadata> callback);
 
-	void getValidationColumns(TRId trId, String columnName,
-			AsyncCallback<ArrayList<ColumnData>> callback);
+	void getValidationColumns(TRId trId, String columnName, AsyncCallback<ArrayList<ColumnData>> callback);
 
-	void getValidationColumns(String columnLocalId, TRId trId,
-			AsyncCallback<ArrayList<ColumnData>> callback);
+	void getValidationColumns(String columnLocalId, TRId trId, AsyncCallback<ArrayList<ColumnData>> callback);
 
 	void startValidationsDelete(TRId trId, AsyncCallback<String> callback);
 
 	// RollBack
-	void startRollBack(RollBackSession rollBackSession,
-			AsyncCallback<String> callback);
+	void startRollBack(RollBackSession rollBackSession, AsyncCallback<String> callback);
 
 	void startDiscard(TRId trId, AsyncCallback<String> callback);
 
 	// Share
 	void setShare(ShareTabResource shareInfo, AsyncCallback<Void> callback);
 
-	void setShareTemplate(ShareTemplate shareTemplate,
-			AsyncCallback<Void> callback);
+	void setShareTemplate(ShareTemplate shareTemplate, AsyncCallback<Void> callback);
 
 	void setShareRule(ShareRule shareRule, AsyncCallback<Void> callback);
 
 	// CodelistPagingLoaded
 	void setCodelistsPagingLoader(AsyncCallback<Void> callback);
 
-	void getCodelistsPagingLoader(
-			CodelistPagingLoadConfig codelistPagingLoadConfig,
+	void getCodelistsPagingLoader(CodelistPagingLoadConfig codelistPagingLoadConfig,
 			AsyncCallback<CodelistPagingLoadResult> callback);
 
 	// Open
 	void tdOpen(TDOpenSession tdOpenSession, AsyncCallback<Void> callback);
 
 	// Clone
-	void startCloneTabularResource(
-			CloneTabularResourceSession cloneTabularResourceSession,
+	void startCloneTabularResource(CloneTabularResourceSession cloneTabularResourceSession,
 			AsyncCallback<String> callback);
 
 	// SDMX
@@ -261,82 +234,61 @@ public interface TDGWTServiceAsync {
 
 	void getAgencies(AsyncCallback<ArrayList<Agencies>> callback);
 
-	void setSDMXRegistrySource(SDMXRegistrySource sdmxRegistrySource,
-			AsyncCallback<Void> callback);
+	void setSDMXRegistrySource(SDMXRegistrySource sdmxRegistrySource, AsyncCallback<Void> callback);
 
 	// Import SDMX
-	void startSDMXImport(SDMXImportSession sdmxImportSession,
-			AsyncCallback<String> callback);
+	void startSDMXImport(SDMXImportSession sdmxImportSession, AsyncCallback<String> callback);
 
 	// Import CSV
-	void setCSVSession(CSVImportSession csvImportSession,
-			AsyncCallback<Void> callback);
+	void setCSVSession(CSVImportSession csvImportSession, AsyncCallback<Void> callback);
 
-	void getFileFromWorkspace(CSVImportSession csvImportSession,
-			AsyncCallback<Void> callback);
+	void getFileFromWorkspace(CSVImportSession csvImportSession, AsyncCallback<Void> callback);
 
 	void getAvailableCharset(AsyncCallback<AvailableCharsetList> callback);
 
-	void configureCSVParser(String encoding, HeaderPresence headerPresence,
-			char delimiter, char comment,
+	void configureCSVParser(String encoding, HeaderPresence headerPresence, char delimiter, char comment,
 			AsyncCallback<ArrayList<String>> callback);
 
 	void checkCSV(long errorsLimit, AsyncCallback<CheckCSVSession> callback);
 
-	void startCSVImport(CSVImportSession csvImportSession,
-			AsyncCallback<String> callback);
+	void startCSVImport(CSVImportSession csvImportSession, AsyncCallback<String> callback);
 
 	// Export CSV
-	void getAvailableCharsetForExport(
-			AsyncCallback<AvailableCharsetList> callback);
+	void getAvailableCharsetForExport(AsyncCallback<AvailableCharsetList> callback);
 
-	void startCSVExport(CSVExportSession csvExportSession,
-			AsyncCallback<String> callback);
+	void startCSVExport(CSVExportSession csvExportSession, AsyncCallback<String> callback);
 
 	// Export SDMX
-	void startSDMXExport(SDMXExportSession exportSession,
-			AsyncCallback<String> callback);
+	void startSDMXExport(SDMXExportSession exportSession, AsyncCallback<String> callback);
 
 	// Export Template SDMX
-	void startSDMXTemplateExport(
-			SDMXTemplateExportSession sdmxTemplateExportSession,
-			AsyncCallback<String> callback);
+	void startSDMXTemplateExport(SDMXTemplateExportSession sdmxTemplateExportSession, AsyncCallback<String> callback);
 
 	// Export JSON
-	void startJSONExport(JSONExportSession jsonExportSession,
-			AsyncCallback<String> callback);
+	void startJSONExport(JSONExportSession jsonExportSession, AsyncCallback<String> callback);
 
 	// Table Operation
-	void startChangeTableType(ChangeTableTypeSession changeTableTypeSession,
-			AsyncCallback<String> callback);
+	void startChangeTableType(ChangeTableTypeSession changeTableTypeSession, AsyncCallback<String> callback);
 
 	void startUnion(UnionSession unionSession, AsyncCallback<String> callback);
 
 	// Rows Operation
-	void startEditRow(EditRowSession editRowSession,
-			AsyncCallback<String> callback);
+	void startEditRow(EditRowSession editRowSession, AsyncCallback<String> callback);
 
-	void startDeleteRows(DeleteRowsSession deleteRowsSession,
-			AsyncCallback<String> callback);
+	void startDeleteRows(DeleteRowsSession deleteRowsSession, AsyncCallback<String> callback);
 
-	void startDuplicates(DuplicatesSession duplicatesSession,
-			AsyncCallback<String> callback);
+	void startDuplicates(DuplicatesSession duplicatesSession, AsyncCallback<String> callback);
 
 	// Column Operation
-	void startChangeColumnType(ChangeColumnTypeSession changeColumnTypeSession,
-			AsyncCallback<String> callback);
+	void startChangeColumnType(ChangeColumnTypeSession changeColumnTypeSession, AsyncCallback<String> callback);
 
-	void startAddColumn(AddColumnSession addColumnSession,
-			AsyncCallback<String> callback);
+	void startAddColumn(AddColumnSession addColumnSession, AsyncCallback<String> callback);
 
-	void startDeleteColumn(DeleteColumnSession deleteColumnSession,
-			AsyncCallback<String> callback);
+	void startDeleteColumn(DeleteColumnSession deleteColumnSession, AsyncCallback<String> callback);
 
-	void startLabelColumn(LabelColumnSession labelColumnSession,
-			AsyncCallback<String> callback);
+	void startLabelColumn(LabelColumnSession labelColumnSession, AsyncCallback<String> callback);
 
-	void startChangeColumnsPosition(
-			ChangeColumnsPositionSession changeColumnsPositionSession,
+	void startChangeColumnsPosition(ChangeColumnsPositionSession changeColumnsPositionSession,
 			AsyncCallback<Void> callback);
 
 	/*
@@ -353,36 +305,26 @@ public interface TDGWTServiceAsync {
 	 */
 
 	// BatchReplace Operation
-	void getOccurrencesForBatchReplace(
-			OccurrencesForReplaceBatchColumnSession occurrencesForReplaceBatchColumnSession,
+	void getOccurrencesForBatchReplace(OccurrencesForReplaceBatchColumnSession occurrencesForReplaceBatchColumnSession,
 			AsyncCallback<ArrayList<Occurrences>> callback);
 
-	void startReplaceBatchColumn(
-			ReplaceBatchColumnSession replaceBatchColumnSession,
-			AsyncCallback<String> callback);
+	void startReplaceBatchColumn(ReplaceBatchColumnSession replaceBatchColumnSession, AsyncCallback<String> callback);
 
 	// Replace Operation
-	void startReplaceColumn(ReplaceColumnSession replaceColumnSession,
-			AsyncCallback<String> callback);
+	void startReplaceColumn(ReplaceColumnSession replaceColumnSession, AsyncCallback<String> callback);
 
-	void startReplaceByExternal(
-			ReplaceByExternalSession replaceByExternalSession,
-			AsyncCallback<String> callback);
+	void startReplaceByExternal(ReplaceByExternalSession replaceByExternalSession, AsyncCallback<String> callback);
 
 	// Templates
 	void getTemplates(AsyncCallback<ArrayList<TemplateData>> callback);
 
-	void getTemplatesForDSDExport(
-			AsyncCallback<ArrayList<TemplateData>> callback);
+	void getTemplatesForDSDExport(AsyncCallback<ArrayList<TemplateData>> callback);
 
-	void getTemplateColumnsData(String templateId,
-			AsyncCallback<ArrayList<TemplateColumnData>> callback);
+	void getTemplateColumnsData(String templateId, AsyncCallback<ArrayList<TemplateColumnData>> callback);
 
-	void startTemplateApply(TemplateApplySession templateDeleteSession,
-			AsyncCallback<String> callback);
+	void startTemplateApply(TemplateApplySession templateDeleteSession, AsyncCallback<String> callback);
 
-	void templateDelete(TemplateDeleteSession templateDeleteSession,
-			AsyncCallback<Void> callback);
+	void templateDelete(TemplateDeleteSession templateDeleteSession, AsyncCallback<Void> callback);
 
 	// Locales
 	void getLocales(AsyncCallback<ArrayList<String>> callback);
@@ -400,82 +342,64 @@ public interface TDGWTServiceAsync {
 	void getLastOperationInfo(TRId trId, AsyncCallback<OpHistory> callback);
 
 	// Helper Extract Codelist
-	void startExtractCodelist(ExtractCodelistSession extractCodelistSession,
-			AsyncCallback<String> callback);
+	void startExtractCodelist(ExtractCodelistSession extractCodelistSession, AsyncCallback<String> callback);
 
 	// Helper Codelist Mapping Import
-	void setCodelistMappingSession(
-			CodelistMappingSession codelistMappingSession,
-			AsyncCallback<Void> callback);
+	void setCodelistMappingSession(CodelistMappingSession codelistMappingSession, AsyncCallback<Void> callback);
 
-	void getFileFromWorkspace(CodelistMappingSession codelistMappingSession,
-			AsyncCallback<Void> callback);
+	void getFileFromWorkspace(CodelistMappingSession codelistMappingSession, AsyncCallback<Void> callback);
 
-	void startCodelistMappingImport(
-			CodelistMappingSession codelistMappingSession,
-			AsyncCallback<String> callback);
+	void startCodelistMappingImport(CodelistMappingSession codelistMappingSession, AsyncCallback<String> callback);
 
 	// Normalization
-	void startNormalization(NormalizationSession normalizationSession,
-			AsyncCallback<String> callback);
+	void startNormalization(NormalizationSession normalizationSession, AsyncCallback<String> callback);
 
 	// Denormalization
-	void startDenormalization(DenormalizationSession denormalizationSession,
-			AsyncCallback<String> callback);
+	void startDenormalization(DenormalizationSession denormalizationSession, AsyncCallback<String> callback);
 
 	// Operation Monitor
-	void getOperationMonitor(OperationMonitorSession operationMonitorSession,
-			AsyncCallback<OperationMonitor> callback);
+	void getOperationMonitor(OperationMonitorSession operationMonitorSession, AsyncCallback<OperationMonitor> callback);
 
-	void getBackgroundOperationMonitor(
-			BackgroundOperationMonitorSession backgroundOperationMonitorSession,
+	void getBackgroundOperationMonitor(BackgroundOperationMonitorSession backgroundOperationMonitorSession,
 			AsyncCallback<ArrayList<BackgroundOperationMonitor>> callback);
 
-	void getBackgroundOperationMonitorForSpecificTask(
-			OperationMonitorSession operationMonitorSession,
+	void getBackgroundOperationMonitorForSpecificTask(OperationMonitorSession operationMonitorSession,
 			AsyncCallback<OperationMonitor> callback);
 
 	// File Upload Monitor
 	void getFileUploadMonitor(AsyncCallback<FileUploadMonitor> callback);
 
 	// ResourceTD
-	void getResourcesTD(TRId trId,
-			AsyncCallback<ArrayList<ResourceTDDescriptor>> callback);
+	void getResourcesTD(TRId trId, AsyncCallback<ArrayList<ResourceTDDescriptor>> callback);
 
 	void getResourcesTDByType(TRId trId, ResourceTDType reourceTDType,
 			AsyncCallback<ArrayList<ResourceTDDescriptor>> callback);
 
-	void removeResource(RemoveResourceSession removeResourceSession,
-			AsyncCallback<Void> callback);
+	void removeResource(RemoveResourceSession removeResourceSession, AsyncCallback<Void> callback);
 
-	void saveResource(SaveResourceSession saveResourceSession,
-			AsyncCallback<Void> callback);
+	void saveResource(SaveResourceSession saveResourceSession, AsyncCallback<Void> callback);
 
 	// GIS MAP
-	void startMapCreation(MapCreationSession mapCreationSession,
-			AsyncCallback<String> callback);
+	void startMapCreation(MapCreationSession mapCreationSession, AsyncCallback<String> callback);
 
 	// DataMiner
-	void startDataMinerOperation(
-			DataMinerOperationSession dataMinerOperationSession,
-			AsyncCallback<String> callback);
+	void startDataMinerOperation(DataMinerOperationSession dataMinerOperationSession, AsyncCallback<String> callback);
 
 	// Chart
-	void startChartTopRating(ChartTopRatingSession chartTopRatingSession,
-			AsyncCallback<String> callback);
+	void startChartTopRating(ChartTopRatingSession chartTopRatingSession, AsyncCallback<String> callback);
 
 	// Geospatial
-	void startGeospatialCreateCoordinates(
-			GeospatialCreateCoordinatesSession geospatialCreateCoordinatesSession,
+	void startGeospatialCreateCoordinates(GeospatialCreateCoordinatesSession geospatialCreateCoordinatesSession,
 			AsyncCallback<String> callback);
 
-	void startGeospatialDownscaleCSquare(
-			GeospatialDownscaleCSquareSession geospatialDownscaleCSquareSession,
+	void startGeospatialDownscaleCSquare(GeospatialDownscaleCSquareSession geospatialDownscaleCSquareSession,
 			AsyncCallback<String> callback);
 
 	// Geometry
-	void startGeometryCreatePoint(
-			GeometryCreatePointSession geometryCreatePointSession,
+	void startGeometryCreatePoint(GeometryCreatePointSession geometryCreatePointSession,
 			AsyncCallback<String> callback);
 
+	// Retrieve the URL of default SDMX Registry
+	void getDefaultSDMXRegistryURL(AsyncCallback<String> callback);
+
 }
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionConstants.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionConstants.java
index f79156e..7dd8e40 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionConstants.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionConstants.java
@@ -26,6 +26,8 @@ public class SessionConstants {
 
 	public static final String TR_TASK_MANAGER = "TR_TASK_MANAGER";
 
+	public static final String SDMX_INTERNAL_REGISTRY_URL = "SDMX_INTERNAL_REGISTRY_URL";
+	
 	public static final String SDMX_REGISTRY_SOURCE = "SDMX_REGISTRY_SOURCE";
 
 	public static final String SDMX_CLIENT_ATTRIBUTE = "SDMX_CLIENT";
@@ -133,4 +135,6 @@ public class SessionConstants {
 	public static final String COLUMN_FILTER_SESSION_TASK = "COLUMN_FILTER_SESSION_TASK";
 
 	
+
+	
 }
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java
index 190d1ef..8d4e06c 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java
@@ -536,6 +536,22 @@ public class SessionUtil {
 
 	}
 
+	public static void setInternalSDMXRegistryURLSession(HttpServletRequest httpRequest, ServiceCredentials serviceCredentials,
+			String defaultSDMXRegistryUrl) {
+		SessionOp<String> sessionOp = new SessionOp<>();
+		sessionOp.set(httpRequest, serviceCredentials, SessionConstants.SDMX_INTERNAL_REGISTRY_URL, defaultSDMXRegistryUrl);
+	}
+
+	public static String getInternalSDMXRegistryURLSession(HttpServletRequest httpRequest,
+			ServiceCredentials serviceCredentials) {
+		SessionOp<String> sessionOp = new SessionOp<>();
+		String defaultSDMXRegistryURL = sessionOp.get(httpRequest, serviceCredentials,
+				SessionConstants.SDMX_INTERNAL_REGISTRY_URL);
+		return defaultSDMXRegistryURL;
+	}
+
+	
+	
 	public static void setSDMXExportSession(HttpServletRequest httpRequest, ServiceCredentials serviceCredentials,
 			SDMXExportSession sdmxExportSession) {
 		SessionOp<SDMXExportSession> sessionOp = new SessionOp<>();
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
index 1bca60d..d750909 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
@@ -111,6 +111,7 @@ import org.gcube.portlets.user.td.gwtservice.server.encoding.EncodingPGSupported
 import org.gcube.portlets.user.td.gwtservice.server.file.CSVFileUploadSession;
 import org.gcube.portlets.user.td.gwtservice.server.file.CodelistMappingFileUploadSession;
 import org.gcube.portlets.user.td.gwtservice.server.file.FileUtil;
+import org.gcube.portlets.user.td.gwtservice.server.is.ISUtils;
 import org.gcube.portlets.user.td.gwtservice.server.opexecution.OpExecution4AddColumn;
 import org.gcube.portlets.user.td.gwtservice.server.opexecution.OpExecution4CSVExport;
 import org.gcube.portlets.user.td.gwtservice.server.opexecution.OpExecution4CSVImport;
@@ -4429,11 +4430,13 @@ public class TDGWTServiceImpl extends RemoteServiceServlet implements TDGWTServi
 			// /
 			switch (exportSession.getExportType()) {
 			case CODELIST:
-				OpExecution4SDMXCodelistExport opExC = new OpExecution4SDMXCodelistExport(service, exportSession);
+				OpExecution4SDMXCodelistExport opExC = new OpExecution4SDMXCodelistExport(httpRequest,
+						serviceCredentials, service, exportSession);
 				director.setOperationExecutionBuilder(opExC);
 				break;
 			case DATASET:
-				OpExecution4SDMXDatasetExport opExD = new OpExecution4SDMXDatasetExport(service, exportSession);
+				OpExecution4SDMXDatasetExport opExD = new OpExecution4SDMXDatasetExport(httpRequest, serviceCredentials,
+						service, exportSession);
 				director.setOperationExecutionBuilder(opExD);
 				break;
 			case GENERIC:
@@ -4496,8 +4499,8 @@ public class TDGWTServiceImpl extends RemoteServiceServlet implements TDGWTServi
 
 			OpExecutionDirector director = new OpExecutionDirector();
 			// /
-			OpExecution4SDMXTemplateExport opExD = new OpExecution4SDMXTemplateExport(service,
-					sdmxTemplateExportSession);
+			OpExecution4SDMXTemplateExport opExD = new OpExecution4SDMXTemplateExport(httpRequest, serviceCredentials,
+					service, sdmxTemplateExportSession);
 			director.setOperationExecutionBuilder(opExD);
 
 			director.constructOperationExecution();
@@ -8940,4 +8943,43 @@ public class TDGWTServiceImpl extends RemoteServiceServlet implements TDGWTServi
 
 	}
 
+	@Override
+	public String getDefaultSDMXRegistryURL() throws TDGWTServiceException {
+		HttpServletRequest httpRequest = null;
+		try {
+			httpRequest = this.getThreadLocalRequest();
+			ServiceCredentials serviceCredentials = SessionUtil.getServiceCredentials(httpRequest);
+
+			String defaultSDMXRegistryURL = SessionUtil.getInternalSDMXRegistryURLSession(httpRequest,
+					serviceCredentials);
+
+			if (defaultSDMXRegistryURL == null || defaultSDMXRegistryURL.isEmpty()) {
+				defaultSDMXRegistryURL = ISUtils.retrieveInternalSDMXRegistryURL();
+				if (defaultSDMXRegistryURL != null && !defaultSDMXRegistryURL.isEmpty()) {
+					SessionUtil.setInternalSDMXRegistryURLSession(httpRequest, serviceCredentials,
+							defaultSDMXRegistryURL);
+					int pos = defaultSDMXRegistryURL.indexOf("FusionRegistry");
+					defaultSDMXRegistryURL = defaultSDMXRegistryURL.substring(0, pos + 15);
+
+				}
+			} else {
+				int pos = defaultSDMXRegistryURL.indexOf("FusionRegistry");
+				defaultSDMXRegistryURL = defaultSDMXRegistryURL.substring(0, pos + 15);
+			}
+
+			logger.debug("Default SDMXRegistry URL: " + defaultSDMXRegistryURL);
+			return defaultSDMXRegistryURL;
+
+		} catch (TDGWTServiceException e) {
+			throw e;
+		} catch (SecurityException e) {
+			e.printStackTrace();
+			ResourceBundle messages = getResourceBundle(httpRequest);
+			throw new TDGWTServiceException(messages.getString(TDGWTServiceMessagesConstants.securityExceptionRights));
+		} catch (Throwable e) {
+			logger.error("getDefaultSDMXRegistryURL(): " + e.getLocalizedMessage(), e);
+			throw new TDGWTServiceException("Error retrieving default SDMX Regitry URL: " + e.getLocalizedMessage());
+		}
+	}
+
 }
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/is/ISUtils.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/is/ISUtils.java
new file mode 100644
index 0000000..1ddc13d
--- /dev/null
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/is/ISUtils.java
@@ -0,0 +1,56 @@
+package org.gcube.portlets.user.td.gwtservice.server.is;
+
+import static org.gcube.resources.discovery.icclient.ICFactory.clientFor;
+import static org.gcube.resources.discovery.icclient.ICFactory.queryFor;
+
+import java.util.List;
+
+import org.gcube.common.resources.gcore.ServiceEndpoint;
+import org.gcube.common.resources.gcore.ServiceEndpoint.AccessPoint;
+import org.gcube.common.resources.gcore.ServiceEndpoint.Profile;
+import org.gcube.common.resources.gcore.utils.Group;
+import org.gcube.resources.discovery.client.api.DiscoveryClient;
+import org.gcube.resources.discovery.client.queries.api.SimpleQuery;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * 
+ * @author Giancarlo Panichi
+ *
+ *
+ */
+public class ISUtils {
+
+	private static Logger logger = LoggerFactory.getLogger(ISUtils.class);
+
+	public static String retrieveInternalSDMXRegistryURL() {
+		String sdmxRegistryURL = null;
+		SimpleQuery query = queryFor(ServiceEndpoint.class);
+		query.addCondition("$resource/Profile/Category/text() eq 'SDMX'")
+				.addCondition("$resource/Profile/Name/text() eq 'SDMXRegistry'");
+		DiscoveryClient<ServiceEndpoint> client = clientFor(ServiceEndpoint.class);
+		List<ServiceEndpoint> listService = client.submit(query);
+		if (listService.size() > 0) {
+			ServiceEndpoint serviceEnd = listService.get(0);
+			if (serviceEnd != null) {
+				Profile prof = serviceEnd.profile();
+				Group<AccessPoint> groupA = prof.accessPoints();
+				for (AccessPoint acc : groupA) {
+					if (acc.description().compareTo("REST Interface v2.1") == 0) {
+						sdmxRegistryURL = acc.address();
+						break;
+					}
+				}
+			} else {
+
+			}
+		} else {
+
+		}
+		logger.debug("Retrieved URL of the default SDMX Registry: " + sdmxRegistryURL);
+		return sdmxRegistryURL;
+
+	}
+
+}
\ No newline at end of file
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXCodelistExport.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXCodelistExport.java
index 4e52cdb..667203d 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXCodelistExport.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXCodelistExport.java
@@ -1,26 +1,21 @@
 package org.gcube.portlets.user.td.gwtservice.server.opexecution;
 
-import static org.gcube.resources.discovery.icclient.ICFactory.clientFor;
-import static org.gcube.resources.discovery.icclient.ICFactory.queryFor;
-
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
-import org.gcube.common.resources.gcore.ServiceEndpoint;
-import org.gcube.common.resources.gcore.ServiceEndpoint.AccessPoint;
-import org.gcube.common.resources.gcore.ServiceEndpoint.Profile;
-import org.gcube.common.resources.gcore.utils.Group;
+import javax.servlet.http.HttpServletRequest;
+
 import org.gcube.data.analysis.tabulardata.commons.webservice.types.operations.OperationDefinition;
 import org.gcube.data.analysis.tabulardata.commons.webservice.types.operations.OperationExecution;
 import org.gcube.data.analysis.tabulardata.service.TabularDataService;
+import org.gcube.portlets.user.td.gwtservice.server.SessionUtil;
+import org.gcube.portlets.user.td.gwtservice.server.is.ISUtils;
 import org.gcube.portlets.user.td.gwtservice.server.trservice.OperationDefinitionMap;
+import org.gcube.portlets.user.td.gwtservice.server.util.ServiceCredentials;
 import org.gcube.portlets.user.td.gwtservice.shared.Constants;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTServiceException;
 import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXExportSession;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.operations.OperationsId;
-import org.gcube.resources.discovery.client.api.DiscoveryClient;
-import org.gcube.resources.discovery.client.queries.api.SimpleQuery;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -32,14 +27,17 @@ import org.slf4j.LoggerFactory;
  * 
  */
 public class OpExecution4SDMXCodelistExport extends OpExecutionBuilder {
-	private static Logger logger = LoggerFactory
-			.getLogger(OpExecution4SDMXCodelistExport.class);
+	private static Logger logger = LoggerFactory.getLogger(OpExecution4SDMXCodelistExport.class);
 
+	private HttpServletRequest httpRequest;
+	private ServiceCredentials serviceCredentials;
 	private TabularDataService service;
 	private SDMXExportSession sdmxExportSession;
 
-	public OpExecution4SDMXCodelistExport(TabularDataService service,
-			SDMXExportSession sdmxExportSession) {
+	public OpExecution4SDMXCodelistExport(HttpServletRequest httpRequest, ServiceCredentials serviceCredentials,
+			TabularDataService service, SDMXExportSession sdmxExportSession) {
+		this.httpRequest = httpRequest;
+		this.serviceCredentials = serviceCredentials;
 		this.service = service;
 		this.sdmxExportSession = sdmxExportSession;
 	}
@@ -52,8 +50,7 @@ public class OpExecution4SDMXCodelistExport extends OpExecutionBuilder {
 									// http://pc-fortunati.isti.cnr.it:8080/FusionRegistry/ws/rest/
 
 		if (sdmxExportSession != null) {
-			if (sdmxExportSession.getRegistryBaseUrl() != null
-					&& !sdmxExportSession.getRegistryBaseUrl().isEmpty()) {
+			if (sdmxExportSession.getRegistryBaseUrl() != null && !sdmxExportSession.getRegistryBaseUrl().isEmpty()) {
 				destination = sdmxExportSession.getRegistryBaseUrl();
 			} else {
 				internalRegistry = true;
@@ -63,37 +60,22 @@ public class OpExecution4SDMXCodelistExport extends OpExecutionBuilder {
 		}
 
 		if (internalRegistry) {
-			SimpleQuery query = queryFor(ServiceEndpoint.class);
-			query.addCondition("$resource/Profile/Category/text() eq 'SDMX'")
-					.addCondition(
-							"$resource/Profile/Name/text() eq 'SDMXRegistry'");
-			DiscoveryClient<ServiceEndpoint> client = clientFor(ServiceEndpoint.class);
-			List<ServiceEndpoint> listService = client.submit(query);
-			if (listService.size() > 0) {
-				ServiceEndpoint serviceEnd = listService.get(0);
-				if (serviceEnd != null) {
-					Profile prof = serviceEnd.profile();
-					Group<AccessPoint> groupA = prof.accessPoints();
-					for (AccessPoint acc : groupA) {
-						if (acc.description().compareTo("REST Interface v2.1") == 0) {
-							destination = acc.address();
-							break;
-						}
-					}
-				} else {
-
+			destination = SessionUtil.getInternalSDMXRegistryURLSession(httpRequest, serviceCredentials);
+			if (destination == null || destination.isEmpty()) {
+				destination = ISUtils.retrieveInternalSDMXRegistryURL();
+				if(destination!=null&&!destination.isEmpty()){
+					SessionUtil.setInternalSDMXRegistryURLSession(httpRequest, serviceCredentials, destination);
 				}
-			} else {
-
 			}
 		}
+
 		if (destination == null) {
 			logger.debug("Destination: " + destination);
 			throw new TDGWTServiceException("SDMX Service not discovered");
 		}
 
-		OperationDefinition operationDefinition = OperationDefinitionMap.map(
-				OperationsId.SDMXCodelistExport.toString(), service);
+		OperationDefinition operationDefinition = OperationDefinitionMap.map(OperationsId.SDMXCodelistExport.toString(),
+				service);
 
 		Map<String, Object> map = new HashMap<String, Object>();
 
@@ -102,8 +84,7 @@ public class OpExecution4SDMXCodelistExport extends OpExecutionBuilder {
 		map.put(Constants.PARAMETER_ID, sdmxExportSession.getId());
 		map.put(Constants.PARAMETER_VERSION, sdmxExportSession.getVersion());
 
-		OperationExecution invocation = new OperationExecution(
-				operationDefinition.getOperationId(), map);
+		OperationExecution invocation = new OperationExecution(operationDefinition.getOperationId(), map);
 
 		operationExecutionSpec.setOp(invocation);
 	}
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXDatasetExport.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXDatasetExport.java
index 27f6e8a..e20d0ee 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXDatasetExport.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXDatasetExport.java
@@ -1,26 +1,21 @@
 package org.gcube.portlets.user.td.gwtservice.server.opexecution;
 
-import static org.gcube.resources.discovery.icclient.ICFactory.clientFor;
-import static org.gcube.resources.discovery.icclient.ICFactory.queryFor;
-
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
-import org.gcube.common.resources.gcore.ServiceEndpoint;
-import org.gcube.common.resources.gcore.ServiceEndpoint.AccessPoint;
-import org.gcube.common.resources.gcore.ServiceEndpoint.Profile;
-import org.gcube.common.resources.gcore.utils.Group;
+import javax.servlet.http.HttpServletRequest;
+
 import org.gcube.data.analysis.tabulardata.commons.webservice.types.operations.OperationDefinition;
 import org.gcube.data.analysis.tabulardata.commons.webservice.types.operations.OperationExecution;
 import org.gcube.data.analysis.tabulardata.service.TabularDataService;
+import org.gcube.portlets.user.td.gwtservice.server.SessionUtil;
+import org.gcube.portlets.user.td.gwtservice.server.is.ISUtils;
 import org.gcube.portlets.user.td.gwtservice.server.trservice.OperationDefinitionMap;
+import org.gcube.portlets.user.td.gwtservice.server.util.ServiceCredentials;
 import org.gcube.portlets.user.td.gwtservice.shared.Constants;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTServiceException;
 import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXExportSession;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.operations.OperationsId;
-import org.gcube.resources.discovery.client.api.DiscoveryClient;
-import org.gcube.resources.discovery.client.queries.api.SimpleQuery;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -32,14 +27,15 @@ import org.slf4j.LoggerFactory;
  * 
  */
 public class OpExecution4SDMXDatasetExport extends OpExecutionBuilder {
-	private static Logger logger = LoggerFactory
-			.getLogger(OpExecution4SDMXDatasetExport.class);
+	private static Logger logger = LoggerFactory.getLogger(OpExecution4SDMXDatasetExport.class);
 
+	private HttpServletRequest httpRequest;
+	private ServiceCredentials serviceCredentials;
 	private TabularDataService service;
 	private SDMXExportSession sdmxExportSession;
 
-	public OpExecution4SDMXDatasetExport(TabularDataService service,
-			SDMXExportSession sdmxExportSession) {
+	public OpExecution4SDMXDatasetExport(HttpServletRequest httpRequest, ServiceCredentials serviceCredentials,
+			TabularDataService service, SDMXExportSession sdmxExportSession) {
 		this.service = service;
 		this.sdmxExportSession = sdmxExportSession;
 	}
@@ -52,8 +48,7 @@ public class OpExecution4SDMXDatasetExport extends OpExecutionBuilder {
 									// http://pc-fortunati.isti.cnr.it:8080/FusionRegistry/ws/rest/
 
 		if (sdmxExportSession != null) {
-			if (sdmxExportSession.getRegistryBaseUrl() != null
-					&& !sdmxExportSession.getRegistryBaseUrl().isEmpty()) {
+			if (sdmxExportSession.getRegistryBaseUrl() != null && !sdmxExportSession.getRegistryBaseUrl().isEmpty()) {
 				destination = sdmxExportSession.getRegistryBaseUrl();
 			} else {
 				internalRegistry = true;
@@ -63,28 +58,12 @@ public class OpExecution4SDMXDatasetExport extends OpExecutionBuilder {
 		}
 
 		if (internalRegistry) {
-			SimpleQuery query = queryFor(ServiceEndpoint.class);
-			query.addCondition("$resource/Profile/Category/text() eq 'SDMX'")
-					.addCondition(
-							"$resource/Profile/Name/text() eq 'SDMXRegistry'");
-			DiscoveryClient<ServiceEndpoint> client = clientFor(ServiceEndpoint.class);
-			List<ServiceEndpoint> listService = client.submit(query);
-			if (listService.size() > 0) {
-				ServiceEndpoint serviceEnd = listService.get(0);
-				if (serviceEnd != null) {
-					Profile prof = serviceEnd.profile();
-					Group<AccessPoint> groupA = prof.accessPoints();
-					for (AccessPoint acc : groupA) {
-						if (acc.description().compareTo("REST Interface v2.1") == 0) {
-							destination = acc.address();
-							break;
-						}
-					}
-				} else {
-
+			destination = SessionUtil.getInternalSDMXRegistryURLSession(httpRequest, serviceCredentials);
+			if (destination == null || destination.isEmpty()) {
+				destination = ISUtils.retrieveInternalSDMXRegistryURL();
+				if(destination!=null&&!destination.isEmpty()){
+					SessionUtil.setInternalSDMXRegistryURLSession(httpRequest, serviceCredentials, destination);
 				}
-			} else {
-
 			}
 		}
 		if (destination == null) {
@@ -92,8 +71,8 @@ public class OpExecution4SDMXDatasetExport extends OpExecutionBuilder {
 			throw new TDGWTServiceException("SDMX Service not discovered");
 		}
 
-		OperationDefinition operationDefinition = OperationDefinitionMap.map(
-				OperationsId.SDMXDatasetExport.toString(), service);
+		OperationDefinition operationDefinition = OperationDefinitionMap.map(OperationsId.SDMXDatasetExport.toString(),
+				service);
 
 		Map<String, Object> map = new HashMap<String, Object>();
 
@@ -103,8 +82,7 @@ public class OpExecution4SDMXDatasetExport extends OpExecutionBuilder {
 		map.put(Constants.PARAMETER_VERSION, sdmxExportSession.getVersion());
 		map.put(Constants.PARAMETER_OBSVALUECOLUMN, sdmxExportSession.getObsValueColumn().getColumnId());
 		map.put(Constants.PARAMETER_EXCEL, sdmxExportSession.isExcel());
-		OperationExecution invocation = new OperationExecution(
-				operationDefinition.getOperationId(), map);
+		OperationExecution invocation = new OperationExecution(operationDefinition.getOperationId(), map);
 
 		operationExecutionSpec.setOp(invocation);
 	}
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXTemplateExport.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXTemplateExport.java
index f7e8889..7f27242 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXTemplateExport.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4SDMXTemplateExport.java
@@ -1,16 +1,10 @@
 package org.gcube.portlets.user.td.gwtservice.server.opexecution;
 
-import static org.gcube.resources.discovery.icclient.ICFactory.clientFor;
-import static org.gcube.resources.discovery.icclient.ICFactory.queryFor;
-
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
-import org.gcube.common.resources.gcore.ServiceEndpoint;
-import org.gcube.common.resources.gcore.ServiceEndpoint.AccessPoint;
-import org.gcube.common.resources.gcore.ServiceEndpoint.Profile;
-import org.gcube.common.resources.gcore.utils.Group;
+import javax.servlet.http.HttpServletRequest;
+
 import org.gcube.data.analysis.tabulardata.commons.templates.model.Template;
 import org.gcube.data.analysis.tabulardata.commons.webservice.exception.NoSuchTemplateException;
 import org.gcube.data.analysis.tabulardata.commons.webservice.types.TemplateDescription;
@@ -18,13 +12,14 @@ import org.gcube.data.analysis.tabulardata.commons.webservice.types.operations.O
 import org.gcube.data.analysis.tabulardata.commons.webservice.types.operations.OperationExecution;
 import org.gcube.data.analysis.tabulardata.service.TabularDataService;
 import org.gcube.data.analysis.tabulardata.service.template.TemplateId;
+import org.gcube.portlets.user.td.gwtservice.server.SessionUtil;
+import org.gcube.portlets.user.td.gwtservice.server.is.ISUtils;
 import org.gcube.portlets.user.td.gwtservice.server.trservice.OperationDefinitionMap;
+import org.gcube.portlets.user.td.gwtservice.server.util.ServiceCredentials;
 import org.gcube.portlets.user.td.gwtservice.shared.Constants;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTServiceException;
 import org.gcube.portlets.user.td.gwtservice.shared.sdmx.SDMXTemplateExportSession;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.operations.OperationsId;
-import org.gcube.resources.discovery.client.api.DiscoveryClient;
-import org.gcube.resources.discovery.client.queries.api.SimpleQuery;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -36,14 +31,15 @@ import org.slf4j.LoggerFactory;
  * 
  */
 public class OpExecution4SDMXTemplateExport extends OpExecutionBuilder {
-	private static Logger logger = LoggerFactory
-			.getLogger(OpExecution4SDMXTemplateExport.class);
+	private static Logger logger = LoggerFactory.getLogger(OpExecution4SDMXTemplateExport.class);
 
+	private HttpServletRequest httpRequest;
+	private ServiceCredentials serviceCredentials;
 	private TabularDataService service;
 	private SDMXTemplateExportSession sdmxTemplateExportSession;
 
-	public OpExecution4SDMXTemplateExport(TabularDataService service,
-			SDMXTemplateExportSession sdmxTemplateExportSession) {
+	public OpExecution4SDMXTemplateExport(HttpServletRequest httpRequest, ServiceCredentials serviceCredentials,
+			TabularDataService service, SDMXTemplateExportSession sdmxTemplateExportSession) {
 		this.service = service;
 		this.sdmxTemplateExportSession = sdmxTemplateExportSession;
 	}
@@ -57,8 +53,7 @@ public class OpExecution4SDMXTemplateExport extends OpExecutionBuilder {
 
 		if (sdmxTemplateExportSession != null) {
 			if (sdmxTemplateExportSession.getRegistryBaseUrl() != null
-					&& !sdmxTemplateExportSession.getRegistryBaseUrl()
-							.isEmpty()) {
+					&& !sdmxTemplateExportSession.getRegistryBaseUrl().isEmpty()) {
 				destination = sdmxTemplateExportSession.getRegistryBaseUrl();
 			} else {
 				internalRegistry = true;
@@ -68,30 +63,15 @@ public class OpExecution4SDMXTemplateExport extends OpExecutionBuilder {
 		}
 
 		if (internalRegistry) {
-			SimpleQuery query = queryFor(ServiceEndpoint.class);
-			query.addCondition("$resource/Profile/Category/text() eq 'SDMX'")
-					.addCondition(
-							"$resource/Profile/Name/text() eq 'SDMXRegistry'");
-			DiscoveryClient<ServiceEndpoint> client = clientFor(ServiceEndpoint.class);
-			List<ServiceEndpoint> listService = client.submit(query);
-			if (listService.size() > 0) {
-				ServiceEndpoint serviceEnd = listService.get(0);
-				if (serviceEnd != null) {
-					Profile prof = serviceEnd.profile();
-					Group<AccessPoint> groupA = prof.accessPoints();
-					for (AccessPoint acc : groupA) {
-						if (acc.description().compareTo("REST Interface v2.1") == 0) {
-							destination = acc.address();
-							break;
-						}
-					}
-				} else {
-
+			destination = SessionUtil.getInternalSDMXRegistryURLSession(httpRequest, serviceCredentials);
+			if (destination == null || destination.isEmpty()) {
+				destination = ISUtils.retrieveInternalSDMXRegistryURL();
+				if(destination!=null&&!destination.isEmpty()){
+					SessionUtil.setInternalSDMXRegistryURLSession(httpRequest, serviceCredentials, destination);
 				}
-			} else {
-
 			}
 		}
+
 		if (destination == null) {
 			logger.debug("Destination: " + destination);
 			throw new TDGWTServiceException("SDMX Service not discovered");
@@ -99,35 +79,29 @@ public class OpExecution4SDMXTemplateExport extends OpExecutionBuilder {
 
 		TemplateDescription templateDescriptor;
 		try {
-			templateDescriptor = service.getTemplate(new TemplateId(
-					sdmxTemplateExportSession.getTemplateData().getId()));
+			templateDescriptor = service
+					.getTemplate(new TemplateId(sdmxTemplateExportSession.getTemplateData().getId()));
 		} catch (NoSuchTemplateException e) {
-			logger.debug(
-					"Error retrieving template: " + e.getLocalizedMessage(), e);
-			throw new TDGWTServiceException("Error retrieving template: "
-					+ e.getLocalizedMessage());
+			logger.debug("Error retrieving template: " + e.getLocalizedMessage(), e);
+			throw new TDGWTServiceException("Error retrieving template: " + e.getLocalizedMessage());
 		}
 
-		OperationDefinition operationDefinition = OperationDefinitionMap.map(
-				OperationsId.SDMXTemplateExport.toString(), service);
-		
-		HashMap<String,Template> templateMap=new HashMap<String,Template>();
-		templateMap.put(Constants.PARAMETER_TEMPLATE,templateDescriptor.getTemplate());
-		
+		OperationDefinition operationDefinition = OperationDefinitionMap.map(OperationsId.SDMXTemplateExport.toString(),
+				service);
+
+		HashMap<String, Template> templateMap = new HashMap<String, Template>();
+		templateMap.put(Constants.PARAMETER_TEMPLATE, templateDescriptor.getTemplate());
+
 		Map<String, Object> map = new HashMap<String, Object>();
 
 		map.put(Constants.PARAMETER_REGISTRYBASEURL, destination);
-		map.put(Constants.PARAMETER_AGENCY,
-				sdmxTemplateExportSession.getAgencyId());
+		map.put(Constants.PARAMETER_AGENCY, sdmxTemplateExportSession.getAgencyId());
 		map.put(Constants.PARAMETER_ID, sdmxTemplateExportSession.getId());
-		map.put(Constants.PARAMETER_VERSION,
-				sdmxTemplateExportSession.getVersion());
-		map.put(Constants.PARAMETER_OBSVALUECOLUMN, sdmxTemplateExportSession
-				.getObsValueColumn().getColumnId());
+		map.put(Constants.PARAMETER_VERSION, sdmxTemplateExportSession.getVersion());
+		map.put(Constants.PARAMETER_OBSVALUECOLUMN, sdmxTemplateExportSession.getObsValueColumn().getColumnId());
 		map.put(Constants.PARAMETER_EXCEL, sdmxTemplateExportSession.isExcel());
 		map.put(Constants.PARAMETER_TEMPLATE, templateMap);
-		OperationExecution invocation = new OperationExecution(
-				operationDefinition.getOperationId(), map);
+		OperationExecution invocation = new OperationExecution(operationDefinition.getOperationId(), map);
 
 		operationExecutionSpec.setOp(invocation);
 	}