com.github.kardapoltsev.astparser.util.Logger.scala Maven / Gradle / Ivy

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/*
  Copyright 2016 Alexey Kardapoltsev

  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 com.github.kardapoltsev.astparser.util

import org.slf4j.LoggerFactory

object Logger {
  val times = collection.mutable.Map[String, Long]()
  val counts = collection.mutable.Map[String, Int]()
}

trait Logger {

  protected def log = LoggerFactory.getLogger(getClass)

  protected def loggingTimeMuted[A](tag: String)(f: => A): A = {
    f
  }

  protected def loggingTime[A](tag: String)(f: => A): A = {
    val start = System.currentTimeMillis()
    val result = f
    val time = System.currentTimeMillis() - start
    val totalTime = Logger.times.getOrElse(tag, 0L) + time
    val totalCount = Logger.counts.getOrElse(tag, 0) + 1
    Logger.times += tag -> totalTime
    Logger.counts += tag -> totalCount

    val reportMessage = s"$tag took ${time}ms (${totalTime}ms total, $totalCount times)"
    if(time < 10) {
      //skip it
    } else if(time < 100) {
      log.debug(reportMessage)
    } else if(time < 1000) {
      log.info(reportMessage)
    } else {
      log.warn(reportMessage)
    }

    result
  }

}