xds/local-control-panel/server/app/logger.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 (
	"log"
)

// Logger An example of a logger that implements `pkg/log/Logger`.  Logs to
// stdout.  If Debug == false then Debugf() and Infof() won't output
// anything.
type Logger struct {
	Debug bool
}

// Debugf Log to stdout only if Debug is true.
func (logger Logger) Debugf(format string, args ...interface{}) {
	if logger.Debug {
		log.Printf(format+"\n", args...)
	}
}

// Log to stdout only if Debug is true.
func (logger Logger) Infof(format string, args ...interface{}) {
	if logger.Debug {
		log.Printf(format+"\n", args...)
	}
}

// Warnf ErrorfLog to stdout always.
func (logger Logger) Warnf(format string, args ...interface{}) {
	log.Printf(format+"\n", args...)
}

// Errorf Log to stdout always.
func (logger Logger) Errorf(format string, args ...interface{}) {
	log.Printf(format+"\n", args...)
}