notmatcheslistregexpdeciderule.java

来自「一个搜索引擎,希望对大家有用」· Java 代码 · 共 65 行

/* NotMatchesListRegExpDecideRule
 * 
 * $Id: NotMatchesListRegExpDecideRule.java,v 1.1 2005/05/30 14:41:54 kristinn_sig Exp $
 * 
 * Created on 30.5.2005
 *
 * Copyright (C) 2005 Internet Archive.
 * 
 * This file is part of the Heritrix web crawler (crawler.archive.org).
 * 
 * Heritrix is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * any later version.
 * 
 * Heritrix 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 Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser Public License
 * along with Heritrix; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.archive.crawler.deciderules;

import java.util.logging.Logger;

/**
 * Rule applies configured decision to any URIs which do *not*
 * match the supplied regexp.
 *
 * @author Kristinn Sigurdsson
 */
public class NotMatchesListRegExpDecideRule extends MatchesRegExpDecideRule {
    private static final Logger logger =
        Logger.getLogger(NotMatchesListRegExpDecideRule.class.getName());


    /**
     * Usual constructor. 
     * @param name
     */
    public NotMatchesListRegExpDecideRule(String name) {
        super(name);
        setDescription("NotMatchesListRegExpDecideRule. Applies the configured " +
            "decision to URIs *not* matching the supplied regular " +
            "expressions.\n The list of regular expressions can be " +
            "considered logically AND or OR.\n" +
            "NOTE: This means that if there are no regular expressions in " +
            "the list, this rule will apply to *all* URIs!");
    }

    /**
     * Evaluate whether given object's string version does not match 
     * configured regexps (by reversing the superclass's answer).
     * 
     * @param object Object to make decision about.
     * @return true if the regexps are not matched
     */
    protected boolean evaluate(Object object) {
        return ! super.evaluate(object);
    }
}