/*
* 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.nc2;
import ucar.ma2.Array;
import java.io.IOException;
/**
* @author john
*/
public class TimeRecords2 {
static void doOne(String filename, String varName) throws IOException {
System.out.println("\nTime " + filename);
NetcdfFile ncfile = NetcdfFile.open(filename);
readOneVariable( ncfile, varName);
readColumns(ncfile);
ncfile.close();
}
static private void readColumns(NetcdfFile ncfile) throws IOException {
long start = System.currentTimeMillis();
long total = 0;
for (Variable variable : ncfile.getVariables()) {
Array data = variable.read();
total += data.getSize();
}
double took = (System.currentTimeMillis() - start) * .001;
System.out.println(" nvars = " + ncfile.getVariables().size());
System.out.println(" readCols took=" + took + " secs ("+total+")");
}
static private void readOneVariable(NetcdfFile ncfile, String varName) throws IOException {
long start = System.currentTimeMillis();
long total = 0;
Variable variable = ncfile.findVariable(varName);
Array data = variable.read();
total += data.getSize();
double took = (System.currentTimeMillis() - start) * .001;
System.out.println(" read var = " + varName+" from "+ncfile.getLocation());
System.out.println(" readOneVariable took=" + took + " secs ("+total+")");
}
static public void main(String[] args) throws IOException {
doOne("C:/data/metars/Surface_METAR_20070326_0000.col.nc", "parent_index");
doOne("C:/data/metars/Surface_METAR_20070326_0000.nc", "parent_index");
}
}