localerrorformatter.java

最强的爬虫工程

/* Copyright (C) 2003 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
 *
 * CrawlErrorFormatter.java
 * Created on Jul 7, 2003
 *
 * $Header: /cvsroot/archive-crawler/ArchiveOpenCrawler/src/java/org/archive/crawler/io/LocalErrorFormatter.java,v 1.4 2005/09/22 23:03:11 gojomo Exp $
 */
package org.archive.crawler.io;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.logging.LogRecord;

import org.archive.crawler.datamodel.CoreAttributeConstants;
import org.archive.crawler.datamodel.LocalizedError;

/**
 * @author gojomo
 *
 */
public class LocalErrorFormatter extends UriProcessingFormatter implements CoreAttributeConstants {

    /* (non-Javadoc)
     * @see java.util.logging.Formatter#format(java.util.logging.LogRecord)
     */
    public String format(LogRecord lr) {
        LocalizedError err = (LocalizedError) lr.getParameters()[1];
        Throwable ex = (Throwable)err.exception;
        StringWriter sw = new StringWriter();
        ex.printStackTrace(new PrintWriter(sw));

        return super.format(lr) + " " + sw.toString();
    }
}