content: /*
   * Copyright (C) 2012-2023 52°North Spatial Information Research GmbH
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 as published
   * by the Free Software Foundation.
   *
   * If the program is linked with libraries which are licensed under one of
   * the following licenses, the combination of the program with the linked
   * library is not considered a "derivative work" of the program:
   *
   *     - Apache License, version 2.0
   *     - Apache Software License, version 1.0
   *     - GNU Lesser General Public License, version 3
   *     - Mozilla Public License, versions 1.0, 1.1 and 2.0
   *     - Common Development and Distribution License (CDDL), version 1.0
   *
   * Therefore the distribution of the program linked with libraries licensed
   * under the aforementioned licenses, is permitted by the copyright holders
   * if the distribution is compliant with both the GNU General Public
   * License version 2 and the aforementioned licenses.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
   * Public License for more details.
   */
  package org.n52.sos.netcdf;
  
  import com.axiomalaska.cf4j.CFStandardNames;
  
  import ucar.nc2.Dimension;
  import ucar.nc2.Variable;
  import ucar.nc2.write.Nc4ChunkingDefault;
  
  /**
   * Implementation of {@link Nc4ChunkingDefault} to force time chunk.
   *
   * @author <a href="mailto:shane@axiomdatascience.com">Shane StClair</a>
   * @author <a href="mailto:c.hollmann@52north.org">Carsten Hollmann</a>
   * @since 4.4.0
   *
   */
  public class Nc4ForceTimeChunkingStategy extends Nc4ChunkingDefault {
      private static final int TIME_CHUNK_MAX = 1000;
  
      private final int chunkSize;
  
      public Nc4ForceTimeChunkingStategy() {
          this(TIME_CHUNK_MAX);
      }
  
      public Nc4ForceTimeChunkingStategy(int chunkSize) {
          super(5, true);
          this.chunkSize = chunkSize;
      }
  
      @Override
      public long[] computeChunking(Variable v) {
          long[] chunks = super.computeChunking(v);
  
          int numDim = v.getDimensions().size();
          for (int i = 0; i < numDim; i++) {
              Dimension dim = v.getDimension(i);
              if (dim.getFullName().equals(CFStandardNames.TIME.getName())) {
                  // force time chunking to TIME_CHUNK_MAX
                  chunks[i] = chunkSize;
              }
          }
          return chunks;
      }
  }
  