| /** |
| * 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._ |
| |
| /** |
| * A class used for unit testing things which depend on the Time interface. |
| * |
| * This class never manually advances the clock, it only does so when you call |
| * sleep(ms) |
| * |
| * It also comes with an associated scheduler instance for managing background tasks in |
| * a deterministic way. |
| */ |
| class MockTime(@volatile private var currentMs: Long) extends Time { |
| |
| val scheduler = new MockScheduler(this) |
| |
| def this() = this(System.currentTimeMillis) |
| |
| def milliseconds: Long = currentMs |
| |
| def nanoseconds: Long = |
| TimeUnit.NANOSECONDS.convert(currentMs, TimeUnit.MILLISECONDS) |
| |
| def sleep(ms: Long) { |
| this.currentMs += ms |
| scheduler.tick() |
| } |
| |
| override def toString() = "MockTime(%d)".format(milliseconds) |
| |
| } |