add support for customized "no data found" message for any table

Author: harp-intel

internal/report/html.go

@@ -200,7 +200,11 @@ func createHtmlReport(allTableValues []TableValues, targetName string) (out []by
 		sb.WriteString(fmt.Sprintf("<h2 id=\"%[1]s\">%[1]s</h2>\n", html.EscapeString(tableValues.Name)))
 		// if there's no data in the table, print a message and continue
 		if len(tableValues.Fields) == 0 || len(tableValues.Fields[0].Values) == 0 {
-			sb.WriteString("<p>" + noDataFound + "</p>\n")
+			msg := noDataFound
+			if tableValues.NoDataFound != "" {
+				msg = tableValues.NoDataFound
+			}
+			sb.WriteString("<p>" + msg + "</p>\n")
 			continue
 		}
 		// render the tables

internal/report/html_flamegraph.go

@@ -160,7 +160,11 @@ func renderFlameGraph(header string, tableValues TableValues, field string) (out
 	folded := tableValues.Fields[fieldIdx].Values[0]
 	if folded == "" {
 		out += `<div class="fgheader clearfix"><h3 class="text-muted">` + header + `</h3></div>`
-		out += noDataFound
+		msg := noDataFound
+		if tableValues.NoDataFound != "" {
+			msg = tableValues.NoDataFound
+		}
+		out += msg
 		return
 	}
 	jsonStacks, err := convertFoldedToJSON(folded)

internal/report/report.go

@@ -104,7 +104,11 @@ func createTextReport(allTableValues []TableValues) (out []byte, err error) {
 		}
 		sb.WriteString("\n")
 		if len(tableValues.Fields) == 0 || len(tableValues.Fields[0].Values) == 0 {
-			sb.WriteString(noDataFound + "\n\n")
+			msg := noDataFound
+			if tableValues.NoDataFound != "" {
+				msg = tableValues.NoDataFound
+			}
+			sb.WriteString(msg + "\n\n")
 			continue
 		}
 		// custom renderer defined?
@@ -238,7 +242,11 @@ func renderXlsxTable(tableValues TableValues, f *excelize.File, sheetName string
 	_ = f.SetCellStyle(sheetName, cellName(col, *row), cellName(col, *row), tableNameStyle)
 	*row++
 	if len(tableValues.Fields) == 0 || len(tableValues.Fields[0].Values) == 0 {
-		_ = f.SetCellValue(sheetName, cellName(col, *row), noDataFound)
+		msg := noDataFound
+		if tableValues.NoDataFound != "" {
+			msg = tableValues.NoDataFound
+		}
+		_ = f.SetCellValue(sheetName, cellName(col, *row), msg)
 		*row += 2
 		return
 	}
@@ -308,7 +316,11 @@ func renderXlsxTableMultiTarget(tableIdx int, allTargetsTableValues [][]TableVal
 
 			// if no data found, print a message and skip to the next target
 			if len(allTargetsTableValues[targetIdx][tableIdx].Fields) == 0 || len(allTargetsTableValues[targetIdx][tableIdx].Fields[0].Values) == 0 {
-				_ = f.SetCellValue(sheetName, cellName(col, *row), noDataFound)
+				msg := noDataFound
+				if allTargetsTableValues[targetIdx][tableIdx].NoDataFound != "" {
+					msg = allTargetsTableValues[targetIdx][tableIdx].NoDataFound
+				}
+				_ = f.SetCellValue(sheetName, cellName(col, *row), msg)
 				*row += 2
 				continue
 			}

internal/report/table_defs.go

@@ -35,9 +35,10 @@ type TableDefinition struct {
 	Name        string
 	ScriptNames []string
 	// Fields function is called to retrieve field values from the script outputs
-	FieldsFunc FieldsRetriever
-	MenuLabel  string // add to tables that will be displayed in the menu
-	HasRows    bool   // table is meant to be displayed in row form, i.e., a field may have multiple values
+	FieldsFunc  FieldsRetriever
+	MenuLabel   string // add to tables that will be displayed in the menu
+	HasRows     bool   // table is meant to be displayed in row form, i.e., a field may have multiple values
+	NoDataFound string // message to display when no data is found
 	// render functions are used to override the default rendering behavior
 	HTMLTableRendererFunc            HTMLTableRenderer
 	HTMLMultiTargetTableRendererFunc HTMLMultiTargetTableRenderer
@@ -523,6 +524,7 @@ var tableDefinitions = map[string]TableDefinition{
 		ScriptNames: []string{
 			script.MemoryBandwidthAndLatencyScriptName,
 		},
+		NoDataFound:                      "No memory latency data found. Please see the GitHub repository README for instructions on how to install Intel Memory Latency Checker (mlc).",
 		FieldsFunc:                       memoryLatencyTableValues,
 		HTMLTableRendererFunc:            memoryLatencyTableHtmlRenderer,
 		HTMLMultiTargetTableRendererFunc: memoryLatencyTableMultiTargetHtmlRenderer},
@@ -533,7 +535,8 @@ var tableDefinitions = map[string]TableDefinition{
 		ScriptNames: []string{
 			script.NumaBandwidthScriptName,
 		},
-		FieldsFunc: numaBandwidthTableValues},
+		NoDataFound: "No NUMA bandwidth data found. Please see the GitHub repository README for instructions on how to install Intel Memory Latency Checker (mlc).",
+		FieldsFunc:  numaBandwidthTableValues},
 	//
 	// telemetry tables
 	//