/* Copyright 2010 Aaron J. Radke 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 cc.drx object Timer{ object TimerResult{ def apply[R](block: => R):TimerResult[R] = { val t0 = System.nanoTime() val result = block val t1 = System.nanoTime() TimerResult(result, Time(t1-t0,"ns")) } } case class TimerResult[R](result:R,time:Time) //--return the time def time[R](block: => R):Time = TimerResult(block).time def time[R](label:String)(block: => R):Time = time(label,80)(block) def time[R](label:String,padLabelBy:Int)(block: => R):Time = { print(label fit padLabelBy) val t = TimerResult(block).time println(t.format) t } //--stat bound of the mean def bound[R](n:Int)(block: => R):Bound[Time] = Stat( Iterator.fill(n){ time(block).s} ).boundMost.map{_.s} def bound[R](block: => R):Bound[Time] = bound(10){block} //--return the result with a side effect stdout def apply[R](block: => R): R = apply("",false){block} //unlabled by default def apply[R](label:String)(block: => R):R = apply(label,false){block} def withHeader[R](label:String)(block: => R):R = apply(label,true){block} def apply[R](label:String,printLabelOnStart:Boolean)(block: => R): R = { if(printLabelOnStart) println(f"# ${Color.Green ansi label} started:${Date.now.iso}") val TimerResult(result, time) = TimerResult(block) println(s"${Color.Green ansi label} ${Color.Blue ansi "Elapsed-time"}: ${time.format}") result } //--return the result and time pair def result[R](block: => R):TimerResult[R] = TimerResult(block) def pair[R](block: => R):(R,Time) = {val tr = TimerResult(block); (tr.result, tr.time)} //val timer = new java.util.Timer //def schedule[T](msDelay:Long)(body: => T):Unit = timer.schedule(new java.util.TimerTask{def run = body},msDelay) } object KeepTrying { @tailrec def apply[A](msg:String, msRetry:Long=0)(func: => A):A = Try{func} match { case Success(a) => a case Failure(e) => { println(s"Try again to $msg in $msRetry ms due to $e") //TODO use the timer task scheduler Thread.sleep(msRetry) apply(msg,msRetry)(func) } } }