Source code

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;
020
021import org.apache.reef.tang.Configuration;
022import org.apache.reef.tang.Injector;
023import org.apache.reef.tang.JavaConfigurationBuilder;
024import org.apache.reef.tang.Tang;
025import org.apache.reef.tang.annotations.Name;
026import org.apache.reef.tang.annotations.NamedParameter;
027import org.apache.reef.tang.annotations.Parameter;
028import org.apache.reef.tang.exceptions.BindException;
029import org.apache.reef.tang.exceptions.InjectionException;
030
031import javax.inject.Inject;
032
033public class TimerV1 {
034
035  private final int seconds;
036
037  @Inject
038  public TimerV1(@Parameter(Seconds.class) final int seconds) {
039    this.seconds = seconds;
040  }
041
042  public static void main(final String[] args) throws BindException, InjectionException {
043    final Tang tang = Tang.Factory.getTang();
044    final JavaConfigurationBuilder cb = tang.newConfigurationBuilder();
045    final Configuration conf = cb.build();
046    final Injector injector = tang.newInjector(conf);
047    final TimerV1 timer = injector.getInstance(TimerV1.class);
048
049    try {
050      System.out.println("Tick...");
051      timer.sleep();
052      System.out.println("Tock.");
053    } catch (final InterruptedException e) {
054      e.printStackTrace();
055    }
056  }
057
058  public void sleep() throws InterruptedException {
059    java.lang.Thread.sleep(seconds * 1000);
060  }
061
062  @NamedParameter(default_value = "10",
063      doc = "Number of seconds to sleep", short_name = "sec")
064  class Seconds implements Name<Integer> {
065  }
066}