1   /* Copyright 2022-2025 Romain Serra
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.propagation.conversion;
18  
19  import org.hipparchus.ode.AbstractIntegrator;
20  import org.orekit.orbits.CartesianOrbit;
21  import org.orekit.orbits.Orbit;
22  import org.orekit.orbits.OrbitType;
23  import org.orekit.orbits.PositionAngleType;
24  import org.orekit.utils.AbsolutePVCoordinates;
25  
26  /**
27   * Abstract class for integrator builder.
28   *
29   * @param <T> field type
30   * @since 13.0
31   * @author Romain Serra
32   */
33  public abstract class AbstractIntegratorBuilder<T extends AbstractIntegrator> implements ODEIntegratorBuilder {
34  
35      @Override
36      public abstract T buildIntegrator(Orbit orbit, OrbitType orbitType, PositionAngleType angleType);
37  
38      @Override
39      public T buildIntegrator(final Orbit orbit, final OrbitType orbitType) {
40          return buildIntegrator(orbit, orbitType, PositionAngleType.MEAN);
41      }
42  
43      @Override
44      public T buildIntegrator(final AbsolutePVCoordinates absolutePVCoordinates) {
45          final double arbitraryMu = 1.;
46          final CartesianOrbit cartesianOrbit = new CartesianOrbit(absolutePVCoordinates.getPVCoordinates(),
47                  absolutePVCoordinates.getFrame(), arbitraryMu);
48          return buildIntegrator(cartesianOrbit, OrbitType.CARTESIAN);
49      }
50  }