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/*
 * Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
 *
 * Portions of this software were developed by the Unidata Program at the
 * University Corporation for Atmospheric Research.
 *
 * Access and use of this software shall impose the following obligations
 * and understandings on the user. The user is granted the right, without
 * any fee or cost, to use, copy, modify, alter, enhance and distribute
 * this software, and any derivative works thereof, and its supporting
 * documentation for any purpose whatsoever, provided that this entire
 * notice appears in all copies of the software, derivative works and
 * supporting documentation.  Further, UCAR requests that the user credit
 * UCAR/Unidata in any publications that result from the use of this
 * software or in any product that includes this software. The names UCAR
 * and/or Unidata, however, may not be used in any advertising or publicity
 * to endorse or promote any products or commercial entity unless specific
 * written permission is obtained from UCAR/Unidata. The user also
 * understands that UCAR/Unidata is not obligated to provide the user with
 * any support, consulting, training or assistance of any kind with regard
 * to the use, operation and performance of this software nor to provide
 * the user with any updates, revisions, new versions or "bug fixes."
 *
 * THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
 */
package ucar.ma2;

/**
 * Convenience routines for constructing one-off StructureData objects
 *
 * @author caron
 * @since Jan 19, 2009
 */
public class StructureDataFactory {

  /* static public StructureData make(String name, String value) {
    StructureMembers members = new StructureMembers("");
    StructureMembers.Member m = members.addMember(name, null, null, DataType.STRING, new int[]{1});
    StructureDataW sw = new StructureDataW(members);
    Array dataArray = Array.factory(DataType.STRING, new int[]{1});
    dataArray.setObject(dataArray.getIndex(), value);
    sw.setMemberData(m, dataArray);
    return sw;
  } */

  static public StructureData make(String name, Object value) {
    StructureMembers members = new StructureMembers("");
    DataType dtype = DataType.getType(value.getClass());
    StructureMembers.Member m = members.addMember(name, null, null, dtype, new int[]{1});
    StructureDataW sw = new StructureDataW(members);
    Array dataArray = Array.factory(dtype, new int[]{1});
    dataArray.setObject(dataArray.getIndex(), value);
    sw.setMemberData(m, dataArray);
    return sw;
  }

  static public StructureData make(StructureData s1, StructureData s2) {
    return make(new StructureData[]{s1, s2});
  }

  static public StructureData make(StructureData[] sdatas) {
    if (sdatas.length == 1) return sdatas[0];

    // look for sole
    int count = 0;
    StructureData result = null;
    for (StructureData sdata : sdatas) {
      if (sdata != null) {
        count++;
        result = sdata;
      }
    }
    if (count == 1) return result;

    // combine
    StructureDataComposite result2 = new StructureDataComposite();
    for (StructureData sdata : sdatas) {
      if (sdata != null)
        result2.add(sdata);
    }
    return result2;
  }


}