ucar.nc2.iosp.netcdf3.SPFactory Maven / Gradle / Ivy

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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
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 * 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
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 *
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 * DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
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 */
package ucar.nc2.iosp.netcdf3;

import ucar.nc2.iosp.netcdf3.N3raf;
import ucar.nc2.iosp.IOServiceProvider;

/**
 * A factory for implementations of netcdf-3 IOServiceProvider.
 * This allows us to switch implementations in one place, used for testing and timing.
 * 
 * @author caron
 */

public class SPFactory {

  static private Class spClass = N3raf.class;
  static private boolean debug = false;

  static public IOServiceProvider getServiceProvider() {
    try {
      if (debug) System.out.println("**********using Service Provider Class = "+spClass.getName());
      return (IOServiceProvider) spClass.newInstance();
    } catch (InstantiationException e) {
      e.printStackTrace();
    } catch (IllegalAccessException e) {
      e.printStackTrace();
    }
    return null;
  }

  static public void setServiceProvider(String spName) throws ClassNotFoundException, InstantiationException, IllegalAccessException {
    spClass = Class.forName(spName);
    spClass.newInstance(); // fail fast
    if (debug) System.out.println("**********NetcCDF Service Provider Class set to = "+spName);
  }

}