Add metric pass/drop filter

internal/config/config.go

@@ -483,12 +483,12 @@ func (c *Config) addInput(name string, table *ast.Table) error {
 func buildFilter(tbl *ast.Table) internal_models.Filter {
 	f := internal_models.Filter{}
 
-	if node, ok := tbl.Fields["pass"]; ok {
+	if node, ok := tbl.Fields["namepass"]; ok {
 		if kv, ok := node.(*ast.KeyValue); ok {
 			if ary, ok := kv.Value.(*ast.Array); ok {
 				for _, elem := range ary.Value {
 					if str, ok := elem.(*ast.String); ok {
-						f.Pass = append(f.Pass, str.Value)
+						f.NamePass = append(f.NamePass, str.Value)
 						f.IsActive = true
 					}
 				}
@@ -496,12 +496,12 @@ func buildFilter(tbl *ast.Table) internal_models.Filter {
 		}
 	}
 
-	if node, ok := tbl.Fields["drop"]; ok {
+	if node, ok := tbl.Fields["namedrop"]; ok {
 		if kv, ok := node.(*ast.KeyValue); ok {
 			if ary, ok := kv.Value.(*ast.Array); ok {
 				for _, elem := range ary.Value {
 					if str, ok := elem.(*ast.String); ok {
-						f.Drop = append(f.Drop, str.Value)
+						f.NameDrop = append(f.NameDrop, str.Value)
 						f.IsActive = true
 					}
 				}
@@ -509,6 +509,38 @@ func buildFilter(tbl *ast.Table) internal_models.Filter {
 		}
 	}
 
+	fields := []string{"pass", "fieldpass"}
+	for _, field := range fields {
+		if node, ok := tbl.Fields[field]; ok {
+			if kv, ok := node.(*ast.KeyValue); ok {
+				if ary, ok := kv.Value.(*ast.Array); ok {
+					for _, elem := range ary.Value {
+						if str, ok := elem.(*ast.String); ok {
+							f.FieldPass = append(f.FieldPass, str.Value)
+							f.IsActive = true
+						}
+					}
+				}
+			}
+		}
+	}
+
+	fields = []string{"drop", "fielddrop"}
+	for _, field := range fields {
+		if node, ok := tbl.Fields[field]; ok {
+			if kv, ok := node.(*ast.KeyValue); ok {
+				if ary, ok := kv.Value.(*ast.Array); ok {
+					for _, elem := range ary.Value {
+						if str, ok := elem.(*ast.String); ok {
+							f.FieldDrop = append(f.FieldDrop, str.Value)
+							f.IsActive = true
+						}
+					}
+				}
+			}
+		}
+	}
+
 	if node, ok := tbl.Fields["tagpass"]; ok {
 		if subtbl, ok := node.(*ast.Table); ok {
 			for name, val := range subtbl.Fields {
@@ -547,6 +579,10 @@ func buildFilter(tbl *ast.Table) internal_models.Filter {
 		}
 	}
 
+	delete(tbl.Fields, "namedrop")
+	delete(tbl.Fields, "namepass")
+	delete(tbl.Fields, "fielddrop")
+	delete(tbl.Fields, "fieldpass")
 	delete(tbl.Fields, "drop")
 	delete(tbl.Fields, "pass")
 	delete(tbl.Fields, "tagdrop")

internal/config/config_test.go

@@ -23,8 +23,10 @@ func TestConfig_LoadSingleInput(t *testing.T) {
 	mConfig := &internal_models.InputConfig{
 		Name: "memcached",
 		Filter: internal_models.Filter{
-			Drop: []string{"other", "stuff"},
-			Pass: []string{"some", "strings"},
+			NameDrop:  []string{"metricname2"},
+			NamePass:  []string{"metricname1"},
+			FieldDrop: []string{"other", "stuff"},
+			FieldPass: []string{"some", "strings"},
 			TagDrop: []internal_models.TagFilter{
 				internal_models.TagFilter{
 					Name:   "badtag",
@@ -66,8 +68,10 @@ func TestConfig_LoadDirectory(t *testing.T) {
 	mConfig := &internal_models.InputConfig{
 		Name: "memcached",
 		Filter: internal_models.Filter{
-			Drop: []string{"other", "stuff"},
-			Pass: []string{"some", "strings"},
+			NameDrop:  []string{"metricname2"},
+			NamePass:  []string{"metricname1"},
+			FieldDrop: []string{"other", "stuff"},
+			FieldPass: []string{"some", "strings"},
 			TagDrop: []internal_models.TagFilter{
 				internal_models.TagFilter{
 					Name:   "badtag",

internal/config/testdata/single_plugin.toml

@@ -1,7 +1,9 @@
 [[inputs.memcached]]
   servers = ["localhost"]
-  pass = ["some", "strings"]
-  drop = ["other", "stuff"]
+  namepass = ["metricname1"]
+  namedrop = ["metricname2"]
+  fieldpass = ["some", "strings"]
+  fielddrop = ["other", "stuff"]
   interval = "5s"
   [inputs.memcached.tagpass]
     goodtag = ["mytag"]

internal/config/testdata/subconfig/memcached.conf

@@ -1,5 +1,7 @@
 [[inputs.memcached]]
   servers = ["192.168.1.1"]
+  namepass = ["metricname1"]
+  namedrop = ["metricname2"]
   pass = ["some", "strings"]
   drop = ["other", "stuff"]
   interval = "5s"