1   /* Copyright 2002-2022 CS GROUP
2    * Licensed to CS GROUP (CS) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * CS licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *   http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.orekit.data;
18  
19  import java.util.SortedSet;
20  
21  import org.hipparchus.util.FastMath;
22  import org.orekit.Utils;
23  import org.orekit.time.TimeScale;
24  import org.orekit.time.TimeStamped;
25  import org.orekit.utils.Constants;
26  
27  public abstract class AbstractFilesLoaderTest {
28  
29      protected DataProvidersManager manager =
30              DataContext.getDefault().getDataProvidersManager();
31  
32      protected TimeScale utc;
33  
34      protected void setRoot(String directoryName) {
35          Utils.setDataRoot(directoryName);
36          manager = DataContext.getDefault().getDataProvidersManager();
37          utc = DataContext.getDefault().getTimeScales().getUTC();
38      }
39  
40      protected int getMaxGap(SortedSet<? extends TimeStamped> history) {
41          double maxGap = 0;
42          TimeStamped previous = null;
43          for (final TimeStamped current : history) {
44              if (previous != null) {
45                  maxGap = FastMath.max(maxGap, current.getDate().durationFrom(previous.getDate()));
46              }
47              previous = current;
48          }
49          return (int) FastMath.round(maxGap / Constants.JULIAN_DAY);
50      }
51  
52  }