smartctl_exporter/gjsonext.go

// Copyright 2022 The Prometheus 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 main

import (
	"github.com/tidwall/gjson"
)

// GetStringIfExists returns json value or default
func GetStringIfExists(json gjson.Result, key string, def string) string {
	value := json.Get(key)
	if value.Exists() {
		return value.String()
	}
	return def
}

// GetFloatIfExists returns json value or default
func GetFloatIfExists(json gjson.Result, key string, def float64) float64 {
	value := json.Get(key)
	if value.Exists() {
		return value.Float()
	}
	return def
}