1   /* Copyright 2002-2024 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.propagation.conversion;
18  
19  import org.hipparchus.CalculusFieldElement;
20  import org.hipparchus.Field;
21  import org.hipparchus.ode.AbstractFieldIntegrator;
22  import org.hipparchus.ode.nonstiff.GillFieldIntegrator;
23  import org.orekit.orbits.Orbit;
24  import org.orekit.orbits.OrbitType;
25  
26  /**
27   * Builder for GillFieldIntegrator.
28   *
29   * @author Pascal Parraud
30   * @author Vincent Cucchietti
31   * @since 12.0
32   * @param <T> type of the field elements
33   */
34  public class GillFieldIntegratorBuilder<T extends CalculusFieldElement<T>>
35          extends AbstractFixedStepFieldIntegratorBuilder<T> {
36  
37      /**
38       * Constructor.
39       *
40       * @param step step size (s)
41       *
42       * @see GillFieldIntegrator
43       */
44      public GillFieldIntegratorBuilder(final double step) {
45          super(step);
46      }
47  
48      /**
49       * Constructor using a "fielded" step.
50       * <p>
51       * <b>WARNING : Given "fielded" step must be using the same field as the one that will be used when calling
52       * {@link #buildIntegrator}</b>
53       *
54       * @param step step size (s)
55       *
56       * @see GillFieldIntegrator
57       */
58      public GillFieldIntegratorBuilder(final T step) {
59          super(step);
60      }
61  
62      /** {@inheritDoc} */
63      @Override
64      public AbstractFieldIntegrator<T> buildIntegrator(final Field<T> field, final Orbit orbit, final OrbitType orbitType) {
65          return new GillFieldIntegrator<>(field, getFieldStep(field));
66      }
67  }