ContinuousScheduler.java

  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.estimation.measurements.generation;

  18. import org.orekit.estimation.measurements.ObservedMeasurement;
  19. import org.orekit.time.AbsoluteDate;
  20. import org.orekit.time.DatesSelector;


  21. /** {@link Scheduler} generating measurements sequences continuously.
  22.  * <p>
  23.  * Continuous schedulers continuously generate measurements following a repetitive pattern.
  24.  * The repetitive pattern can be either a continuous stream of measurements separated by
  25.  * a constant step (for example one measurement every 60s), or several sequences of measurements
  26.  * at high rate up to a maximum number, with a rest period between sequences (for example
  27.  * sequences of up to 256 measurements every 100ms with 300s between each sequence).
  28.  * </p>
  29.  * @param <T> the type of the measurement
  30.  * @author Luc Maisonobe
  31.  * @since 9.3
  32.  */
  33. public class ContinuousScheduler<T extends ObservedMeasurement<T>> extends AbstractScheduler<T> {

  34.     /** Simple constructor.
  35.      * <p>
  36.      * BEWARE! Dates selectors often store internally the last selected dates, so they are not
  37.      * reusable across several {@link EventBasedScheduler instances}. A separate selector
  38.      * should be used for each scheduler.
  39.      * </p>
  40.      * @param builder builder for individual measurements
  41.      * @param selector selector for dates (beware that selectors are generally not
  42.      * reusable across several {@link EventBasedScheduler instances}, each selector should
  43.      * be dedicated to one scheduler
  44.      */
  45.     public ContinuousScheduler(final MeasurementBuilder<T> builder, final DatesSelector selector) {
  46.         super(builder, selector);
  47.     }

  48.     /** {@inheritDoc} */
  49.     @Override
  50.     public boolean measurementIsFeasible(final AbsoluteDate date) {
  51.         return true;
  52.     }


  53. }