Metacat

/**

 *  '$RCSfile$'

 *  Copyright: 2004 University of New Mexico and the

 *             Regents of the University of California

 *

 *   '$Author$'

 *     '$Date$'

 * '$Revision$'

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

 */

package edu.ucsb.nceas.metacat.harvesterClient;

import java.io.IOException;

import javax.servlet.http.*;

 * HarvesterServlet class allows Harvester to be run as a background

 * process. This eliminates the need to run Harvester in a terminal window.

 * To activate this servlet, uncomment the HarvesterServlet entry in the

 * appropriate 'lib/web.xml.tomcat*' file.

 *

 * @author costa

 */

public class HarvesterServlet extends HttpServlet implements Runnable {

   * Class fields

   */

  private static final String SCHEMA_DIR = "harvester";

  private static String SCHEMA_LOCATION;

  private static final String SCHEMA_NAME = "harvestList.xsd";

  static final long serialVersionUID = 0;  // Needed for Eclipse warning.

  /*

   * Object fields

   */

    Harvester.setKeepRunning(false);

  }

  /**

   * Initializes the servlet. Reads properties and initializes object fields.

   *

   * @throws ServletException

   */

  public void init(ServletConfig config) throws ServletException {

    ServletContext context = null;

    String fileSeparator = System.getProperty("file.separator");

    String schemaPath;

    super.init(config);

    context = config.getServletContext();

    schemaPath = context.getRealPath(SCHEMA_DIR) + fileSeparator + SCHEMA_NAME;

    SCHEMA_LOCATION = "eml://ecoinformatics.org/harvestList " + schemaPath;

    harvesterThread.setPriority(Thread.MIN_PRIORITY);  // be a good citizen

    harvesterThread.start();

  }

   * Runs the Harvester main program in a separate thread. First sleeps for

   * 30 seconds to give Metacat a chance to fully initialize.

   */

  public void run() {

      String[] args = new String[1];

      try {

        Thread.sleep(30000);    // Sleep 30 seconds before starting Harvester

      }

      catch (InterruptedException e) {

        System.err.println("InterruptedException: " + e.getMessage());

      }

      Harvester.main(args);

  }

}