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/*
* Copyright 2018 Intel Corporation, Inc
*
* 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 log
import (
"log"
"os"
)
var errLogger *log.Logger
var warnLogger *log.Logger
var infoLogger *log.Logger
// Init will be called by sms.go before any other packages use it
func Init(filePath string) {
if filePath == "" {
errLogger = log.New(os.Stderr, "ERROR: ", log.Lshortfile|log.LstdFlags)
warnLogger = log.New(os.Stdout, "WARNING: ", log.Lshortfile|log.LstdFlags)
infoLogger = log.New(os.Stdout, "INFO: ", log.Lshortfile|log.LstdFlags)
return
}
f, err := os.Create(filePath)
if err != nil {
log.Println("Unable to create a log file")
log.Println(err)
errLogger = log.New(os.Stderr, "ERROR: ", log.Lshortfile|log.LstdFlags)
warnLogger = log.New(os.Stdout, "WARNING: ", log.Lshortfile|log.LstdFlags)
infoLogger = log.New(os.Stdout, "INFO: ", log.Lshortfile|log.LstdFlags)
} else {
errLogger = log.New(f, "ERROR: ", log.Lshortfile|log.LstdFlags)
warnLogger = log.New(f, "WARNING: ", log.Lshortfile|log.LstdFlags)
infoLogger = log.New(f, "INFO: ", log.Lshortfile|log.LstdFlags)
}
}
// WriteError writes output to the writer we have
// defined durint its creation with ERROR prefix
func WriteError(msg string) {
if errLogger != nil {
errLogger.Println(msg)
}
}
// WriteWarn writes output to the writer we have
// defined durint its creation with WARNING prefix
func WriteWarn(msg string) {
if warnLogger != nil {
warnLogger.Println(msg)
}
}
// WriteInfo writes output to the writer we have
// defined durint its creation with INFO prefix
func WriteInfo(msg string) {
if infoLogger != nil {
infoLogger.Println(msg)
}
}
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