001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.reef.tang.examples.timer; 020 021import org.apache.reef.tang.Configuration; 022import org.apache.reef.tang.Tang; 023import org.apache.reef.tang.annotations.Parameter; 024import org.apache.reef.tang.exceptions.BindException; 025import org.apache.reef.tang.exceptions.InjectionException; 026import org.apache.reef.tang.formats.ConfigurationModule; 027import org.apache.reef.tang.formats.ConfigurationModuleBuilder; 028import org.apache.reef.tang.formats.OptionalParameter; 029 030import javax.inject.Inject; 031 032public class TimerMock implements Timer { 033 034 public static final ConfigurationModule CONF = new TimerMockConf() 035 .bindImplementation(Timer.class, TimerMock.class) 036 .bindNamedParameter(Timer.Seconds.class, TimerMockConf.MOCK_SLEEP_TIME) 037 .build(); 038 private final int seconds; 039 040 @Inject 041 TimerMock(@Parameter(Timer.Seconds.class) final int seconds) { 042 if (seconds < 0) { 043 throw new IllegalArgumentException("Cannot sleep for negative time!"); 044 } 045 this.seconds = seconds; 046 } 047 048 public static void main(final String[] args) throws BindException, InjectionException, InterruptedException { 049 final Configuration c = TimerMock.CONF 050 .set(TimerMockConf.MOCK_SLEEP_TIME, 1) 051 .build(); 052 final Timer t = Tang.Factory.getTang().newInjector(c).getInstance(Timer.class); 053 System.out.println("Tick..."); 054 t.sleep(); 055 System.out.println("...tock."); 056 } 057 058 @Override 059 public void sleep() { 060 System.out.println("Would have slept for " + seconds + " sec."); 061 } 062 063 public static class TimerMockConf extends ConfigurationModuleBuilder { 064 public static final OptionalParameter<Integer> MOCK_SLEEP_TIME = new OptionalParameter<>(); 065 } 066}