    1   /*
    2    $Id: Performance.java,v 1.3 2005/06/21 13:59:56 elharo Exp $
    3
    4    Copyright 2003 (C) The Werken Company. All Rights Reserved.
    5
    6    Redistribution and use of this software and associated documentation
    7    ("Software"), with or without modification, are permitted provided
    8    that the following conditions are met:
    9
    10   1. Redistributions of source code must retain copyright
    11      statements and notices.  Redistributions must also contain a
    12      copy of this document.
    13
    14   2. Redistributions in binary form must reproduce the
    15      above copyright notice, this list of conditions and the
    16      following disclaimer in the documentation and/or other
    17      materials provided with the distribution.
    18
    19   3. The name "jaxen" must not be used to endorse or promote
    20      products derived from this Software without prior written
    21      permission of The Werken Company.  For written permission,
    22      please contact bob@werken.com.
    23
    24   4. Products derived from this Software may not be called "jaxen"
    25      nor may "jaxen" appear in their names without prior written
    26      permission of The Werken Company. "jaxen" is a registered
    27      trademark of The Werken Company.
    28
    29   5. Due credit should be given to The Werken Company.
    30      (http://jaxen.werken.com/).
    31
    32   THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS
    33   ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
    34   NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
    35   FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
    36   THE WERKEN COMPANY OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
    37   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    38   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    39   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    40   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
    41   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    42   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
    43   OF THE POSSIBILITY OF SUCH DAMAGE.
    44
    45   */
    46  package org.jaxen.dom4j;
    47
    48  import java.net.URL;
    49
    50  import org.dom4j.Document;
    51  import org.dom4j.Element;
    52  import org.dom4j.io.SAXReader;
    53
    54  class Performance {
    55
    56      public static void main(String[] args) {
    57          try {
    58              URL u = new URL("http://www.ibiblio.org/xml/examples/shakespeare/much_ado.xml");
    59              Document doc = new SAXReader().read(u);
    60              Dom4jXPath xpath = new Dom4jXPath("PLAY/ACT/SCENE/SPEECH/SPEAKER");
    61
    62              long start = System.currentTimeMillis();
    63
    64              int count = 0;
    65              for (int i = 0; i < 1000; i++) {
    66                  Element speaker = (Element) xpath.selectSingleNode(doc);
    67                  count += (speaker == null ? 0 : 1);
    68              }
    69
    70              long end = System.currentTimeMillis();
    71              System.out.println((end - start));
    72              System.out.println(count);
    73
    74          } catch (Exception ex) {
    75              ex.printStackTrace();
    76          }
    77      }
    78
    79  }