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    1   /* WebappLifecycle
    2    *
    3    * Created on Oct 26, 2004
    4    *
    5    * Copyright (C) 2004 Internet Archive.
    6    *
    7    * This file is part of the Heritrix web crawler (crawler.archive.org).
    8    *
    9    * Heritrix is free software; you can redistribute it and/or modify
    10   * it under the terms of the GNU Lesser Public License as published by
    11   * the Free Software Foundation; either version 2.1 of the License, or
    12   * any later version.
    13   *
    14   * Heritrix is distributed in the hope that it will be useful,
    15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    17   * GNU Lesser Public License for more details.
    18   *
    19   * You should have received a copy of the GNU Lesser Public License
    20   * along with Heritrix; if not, write to the Free Software
    21   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    22   */
    23  package org.archive.crawler;
    24
    25  import java.io.IOException;
    26
    27  import javax.servlet.ServletContextEvent;
    28  import javax.servlet.ServletContextListener;
    29
    30
    31  /***
    32   * Calls start and stop of Heritrix when Heritrix is bundled as a webapp.
    33   * @author stack
    34   * @version $Date: 2005-11-17 00:55:56 +0000 (Thu, 17 Nov 2005) $, $Revision: 3959 $
    35   */
    36  public class WebappLifecycle implements ServletContextListener {
    37      private Heritrix heritrix = null;
    38      public void contextInitialized(ServletContextEvent sce) {
    39          if (!Heritrix.isCommandLine()) {
    40              try {
    41  				this.heritrix = new Heritrix(true);
    42  			} catch (IOException e) {
    43  				e.printStackTrace();
    44  			}
    45              if (this.heritrix != null) {
    46                  this.heritrix.start();
    47              }
    48          }
    49      }
    50
    51      public void contextDestroyed(ServletContextEvent sce) {
    52          if (this.heritrix !=  null) {
    53              this.heritrix.destroy();
    54              this.heritrix = null;
    55          }
    56      }
    57  }