| /** |
| * 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.timer |
| |
| import org.apache.kafka.server.util.MockTime |
| |
| import scala.collection.mutable |
| |
| class MockTimer(val time: MockTime = new MockTime) extends Timer { |
| |
| private val taskQueue = mutable.PriorityQueue[TimerTaskEntry]()(Ordering[TimerTaskEntry].reverse) |
| |
| def add(timerTask: TimerTask): Unit = { |
| if (timerTask.delayMs <= 0) |
| timerTask.run() |
| else { |
| taskQueue synchronized { |
| taskQueue.enqueue(new TimerTaskEntry(timerTask, timerTask.delayMs + time.milliseconds)) |
| } |
| } |
| } |
| |
| def advanceClock(timeoutMs: Long): Boolean = { |
| time.sleep(timeoutMs) |
| |
| var executed = false |
| val now = time.milliseconds |
| |
| var hasMore = true |
| while (hasMore) { |
| hasMore = false |
| val head = taskQueue synchronized { |
| if (taskQueue.nonEmpty && now > taskQueue.head.expirationMs) { |
| val entry = Some(taskQueue.dequeue()) |
| hasMore = taskQueue.nonEmpty |
| entry |
| } else |
| None |
| } |
| head.foreach { taskEntry => |
| if (!taskEntry.cancelled) { |
| val task = taskEntry.timerTask |
| task.run() |
| executed = true |
| } |
| } |
| } |
| executed |
| } |
| |
| def size: Int = taskQueue.size |
| |
| override def shutdown(): Unit = {} |
| |
| } |