refactor util functions for event recording

Kubernetes-commit: 7296288928d347dfb1dcb990d779cdfce96ead1b

tools/record/util/util.go

@@ -0,0 +1,44 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package util
+
+import (
+	"net/http"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/errors"
+)
+
+// ValidateEventType checks that eventtype is an expected type of event
+func ValidateEventType(eventtype string) bool {
+	switch eventtype {
+	case v1.EventTypeNormal, v1.EventTypeWarning:
+		return true
+	}
+	return false
+}
+
+// IsKeyNotFoundError is utility function that checks if an error is not found error
+func IsKeyNotFoundError(err error) bool {
+	statusErr, _ := err.(*errors.StatusError)
+
+	if statusErr != nil && statusErr.Status().Code == http.StatusNotFound {
+		return true
+	}
+
+	return false
+}