Stat.java example

Explorer
thredds-master
// $Id: Stat.java 51 2006-07-12 17:13:13Z caron $
/*
 * 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.util;

import java.util.TreeMap;
import java.util.Iterator;

/**
 * Statistics utilities.
 *
 * @author caron
 * @version $Revision: 51 $ $Date: 2006-07-12 17:13:13Z $
 */
public class Stat {
  private TreeMap store = new TreeMap();

  public Stat() {
  }

  public void avg( String what, long val) {
     if (store.containsKey( what)) {
       Node n = (Node) store.get(what);
       n.count++;
       n.accum += val;
     } else {
       Node n = new Node();
       n.count = 1;
       n.accum = val;
       store.put(what, n);
     }
  }

  public void print() {
    Iterator iter = store.keySet().iterator();
    while (iter.hasNext()) {
      String what = (String) iter.next();
      Node n = (Node) store.get(what);

      int avg = (int) (n.accum / n.count);
      System.out.println(what+ " "+n.accum+ "total msec "+avg+ "avg msec "+" count= "+n.count);
    }
    System.out.println("\n");

  }

  class Node {
    int   count;
    double accum;
  }
}