content: /*
   * 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 org.apache.beam.sdk.testing;
  
  import org.joda.time.DateTimeUtils;
  import org.joda.time.format.ISODateTimeFormat;
  import org.junit.rules.ExternalResource;
  import org.junit.rules.TestRule;
  
  /**
   * This {@link TestRule} resets the date time provider in Joda to the system date time provider
   * after tests.
   */
  public class ResetDateTimeProvider extends ExternalResource {
    public void setDateTimeFixed(String iso8601) {
      setDateTimeFixed(ISODateTimeFormat.dateTime().parseMillis(iso8601));
    }
  
    public void setDateTimeFixed(long millis) {
      DateTimeUtils.setCurrentMillisFixed(millis);
    }
  
    @Override
    protected void after() {
      DateTimeUtils.setCurrentMillisSystem();
    }
  }
  