    1   /* NotOnHostsDecideRule
    2   *
    3   * $Id: NotOnHostsDecideRule.java 4649 2006-09-25 17:16:55Z paul_jack $
    4   *
    5   * Created on Apr 5, 2005
    6   *
    7   * Copyright (C) 2005 Internet Archive.
    8   *
    9   * This file is part of the Heritrix web crawler (crawler.archive.org).
    10  *
    11  * Heritrix is free software; you can redistribute it and/or modify
    12  * it under the terms of the GNU Lesser Public License as published by
    13  * the Free Software Foundation; either version 2.1 of the License, or
    14  * any later version.
    15  *
    16  * Heritrix is distributed in the hope that it will be useful,
    17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    19  * GNU Lesser Public License for more details.
    20  *
    21  * You should have received a copy of the GNU Lesser Public License
    22  * along with Heritrix; if not, write to the Free Software
    23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    24  */
    25  package org.archive.crawler.deciderules;
    26
    27
    28  /***
    29   * Rule applies configured decision to any URIs that
    30   * are *not* on one of the hosts in the configured set of
    31   * hosts, filled from the seed set.
    32   *
    33   * @author gojomo
    34   */
    35  public class NotOnHostsDecideRule extends OnHostsDecideRule {
    36
    37      private static final long serialVersionUID = 1512825197255050412L;
    38
    39      //private static final Logger logger =
    40      //    Logger.getLogger(NotOnHostsDecideRule.class.getName());
    41      /***
    42       * Usual constructor.
    43       * @param name
    44       */
    45      public NotOnHostsDecideRule(String name) {
    46          super(name);
    47          setDescription(
    48                  "NotOnHostsDecideRule. Makes the configured decision " +
    49                  "for any URI which is *not* on one of the hosts in the " +
    50                  "configured set of hostnames (derived from the seed" +
    51                  "list).");
    52      }
    53
    54      /***
    55       * Evaluate whether given object's URI is NOT in the set of
    56       * hosts -- simply reverse superclass's determination
    57       *
    58       * @param object Object to evaluate
    59       * @return true if URI not in set
    60       */
    61      protected boolean evaluate(Object object) {
    62          boolean superDecision = super.evaluate(object);
    63          return !superDecision;
    64      }
    65  }