| /** |
| * 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 kafka.utils |
| |
| import java.util.concurrent._ |
| import scala.math._ |
| |
| class DelayedItem[T](val item: T, delay: Long, unit: TimeUnit) extends Delayed { |
| |
| val delayMs = unit.toMillis(delay) |
| val createdMs = System.currentTimeMillis |
| |
| def this(item: T, delayMs: Long) = |
| this(item, delayMs, TimeUnit.MILLISECONDS) |
| |
| /** |
| * The remaining delay time |
| */ |
| def getDelay(unit: TimeUnit): Long = { |
| val ellapsedMs = (System.currentTimeMillis - createdMs) |
| unit.convert(max(delayMs - ellapsedMs, 0), unit) |
| } |
| |
| def compareTo(d: Delayed): Int = { |
| val delayed = d.asInstanceOf[DelayedItem[T]] |
| val myEnd = createdMs + delayMs |
| val yourEnd = delayed.createdMs - delayed.delayMs |
| |
| if(myEnd < yourEnd) -1 |
| else if(myEnd > yourEnd) 1 |
| else 0 |
| } |
| |
| } |