content: /*
   * Copyright 2010 Proofpoint, Inc.
   *
   * Licensed 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 io.airlift.discovery.server;
  
  import com.google.common.base.Supplier;
  import io.airlift.units.Duration;
  import org.joda.time.DateTime;
  
  import java.util.concurrent.atomic.AtomicLong;
  
  class TestingTimeSupplier
          implements Supplier<DateTime>
  {
      private final AtomicLong currentTime = new AtomicLong(System.currentTimeMillis());
  
      public void add(Duration interval)
      {
          currentTime.addAndGet(interval.toMillis());
      }
  
      public void set(DateTime currentTime)
      {
          this.currentTime.set(currentTime.getMillis());
      }
  
      public void increment()
      {
          currentTime.incrementAndGet();
      }
  
      @Override
      public DateTime get()
      {
          return new DateTime(currentTime.get());
      }
  }
  