git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2110 6c8d7289-2bf4-0310-a012-ef5d649a1542pull/1/head
orbiter
19 years ago
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63a08307c2
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// indexEntryAttribute.java
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// (C) 2006 by Michael Peter Christen; mc@anomic.de, Frankfurt a. M., Germany
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// first published 16.05.2006 on http://www.anomic.de
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//
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// This is a part of YaCy, a peer-to-peer based web search engine
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//
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// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
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// $LastChangedRevision: 1986 $
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// $LastChangedBy: orbiter $
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package de.anomic.index;
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import java.net.URL;
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import de.anomic.htmlFilter.htmlFilterContentScraper;
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import de.anomic.kelondro.kelondroBase64Order;
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import de.anomic.server.serverCodings;
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import de.anomic.yacy.yacySeedDB;
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public class indexEntryAttribute {
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// the size of a word hash
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public static final int wordHashLength = yacySeedDB.commonHashLength; // 12
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public static final int urlHashLength = yacySeedDB.commonHashLength; // 12
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// doctypes:
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public static final char DT_PDFPS = 'p';
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public static final char DT_TEXT = 't';
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public static final char DT_HTML = 'h';
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public static final char DT_DOC = 'd';
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public static final char DT_IMAGE = 'i';
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public static final char DT_MOVIE = 'm';
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public static final char DT_FLASH = 'f';
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public static final char DT_SHARE = 's';
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public static final char DT_AUDIO = 'a';
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public static final char DT_BINARY = 'b';
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public static final char DT_UNKNOWN = 'u';
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// appearance locations: (used for flags)
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public static final int AP_TITLE = 0; // title tag from html header
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public static final int AP_H1 = 1; // headline - top level
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public static final int AP_H2 = 2; // headline, second level
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public static final int AP_H3 = 3; // headline, 3rd level
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public static final int AP_H4 = 4; // headline, 4th level
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public static final int AP_H5 = 5; // headline, 5th level
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public static final int AP_H6 = 6; // headline, 6th level
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public static final int AP_TEXT = 7; // word appears in text (used to check validation of other appearances against spam)
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public static final int AP_DOM = 8; // word inside an url: in Domain
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public static final int AP_PATH = 9; // word inside an url: in path
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public static final int AP_IMG = 10; // tag inside image references
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public static final int AP_ANCHOR = 11; // anchor description
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public static final int AP_ENV = 12; // word appears in environment (similar to anchor appearance)
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public static final int AP_BOLD = 13; // may be interpreted as emphasized
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public static final int AP_ITALICS = 14; // may be interpreted as emphasized
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public static final int AP_WEAK = 15; // for Text that is small or bareley visible
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public static final int AP_INVISIBLE = 16; // good for spam detection
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public static final int AP_TAG = 17; // for tagged indexeing (i.e. using mp3 tags)
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public static final int AP_AUTHOR = 18; // word appears in author name
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public static final int AP_OPUS = 19; // word appears in name of opus, which may be an album name (in mp3 tags)
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public static final int AP_TRACK = 20; // word appears in track name (i.e. in mp3 tags)
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// URL attributes
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public static final int UA_LOCAL = 0; // URL was crawled locally
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public static final int UA_TILDE = 1; // tilde appears in URL
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public static final int UA_REDIRECT = 2; // The URL is a redirection
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// local flag attributes
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public static final char LT_LOCAL = 'L';
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public static final char LT_GLOBAL = 'G';
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// create a word hash
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public static String word2hash(String word) {
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return kelondroBase64Order.enhancedCoder.encode(serverCodings.encodeMD5Raw(word.toLowerCase())).substring(0, indexEntryAttribute.wordHashLength);
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}
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// doctype calculation
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public static char docType(URL url) {
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String path = htmlFilterContentScraper.urlNormalform(url);
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// serverLog.logFinest("PLASMA", "docType URL=" + path);
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char doctype = doctype = indexEntryAttribute.DT_UNKNOWN;
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if (path.endsWith(".gif")) { doctype = indexEntryAttribute.DT_IMAGE; }
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else if (path.endsWith(".jpg")) { doctype = indexEntryAttribute.DT_IMAGE; }
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else if (path.endsWith(".jpeg")) { doctype = indexEntryAttribute.DT_IMAGE; }
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else if (path.endsWith(".png")) { doctype = indexEntryAttribute.DT_IMAGE; }
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else if (path.endsWith(".html")) { doctype = indexEntryAttribute.DT_HTML; }
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else if (path.endsWith(".txt")) { doctype = indexEntryAttribute.DT_TEXT; }
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else if (path.endsWith(".doc")) { doctype = indexEntryAttribute.DT_DOC; }
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else if (path.endsWith(".rtf")) { doctype = indexEntryAttribute.DT_DOC; }
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else if (path.endsWith(".pdf")) { doctype = indexEntryAttribute.DT_PDFPS; }
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else if (path.endsWith(".ps")) { doctype = indexEntryAttribute.DT_PDFPS; }
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else if (path.endsWith(".avi")) { doctype = indexEntryAttribute.DT_MOVIE; }
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else if (path.endsWith(".mov")) { doctype = indexEntryAttribute.DT_MOVIE; }
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else if (path.endsWith(".qt")) { doctype = indexEntryAttribute.DT_MOVIE; }
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else if (path.endsWith(".mpg")) { doctype = indexEntryAttribute.DT_MOVIE; }
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else if (path.endsWith(".md5")) { doctype = indexEntryAttribute.DT_SHARE; }
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else if (path.endsWith(".mpeg")) { doctype = indexEntryAttribute.DT_MOVIE; }
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else if (path.endsWith(".asf")) { doctype = indexEntryAttribute.DT_FLASH; }
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return doctype;
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}
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public static char docType(String mime) {
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// serverLog.logFinest("PLASMA", "docType mime=" + mime);
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char doctype = indexEntryAttribute.DT_UNKNOWN;
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if (mime == null) doctype = indexEntryAttribute.DT_UNKNOWN;
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else if (mime.startsWith("image/")) doctype = indexEntryAttribute.DT_IMAGE;
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else if (mime.endsWith("/gif")) doctype = indexEntryAttribute.DT_IMAGE;
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else if (mime.endsWith("/jpeg")) doctype = indexEntryAttribute.DT_IMAGE;
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else if (mime.endsWith("/png")) doctype = indexEntryAttribute.DT_IMAGE;
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else if (mime.endsWith("/html")) doctype = indexEntryAttribute.DT_HTML;
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else if (mime.endsWith("/rtf")) doctype = indexEntryAttribute.DT_DOC;
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else if (mime.endsWith("/pdf")) doctype = indexEntryAttribute.DT_PDFPS;
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else if (mime.endsWith("/octet-stream")) doctype = indexEntryAttribute.DT_BINARY;
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else if (mime.endsWith("/x-shockwave-flash")) doctype = indexEntryAttribute.DT_FLASH;
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else if (mime.endsWith("/msword")) doctype = indexEntryAttribute.DT_DOC;
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else if (mime.endsWith("/mspowerpoint")) doctype = indexEntryAttribute.DT_DOC;
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else if (mime.endsWith("/postscript")) doctype = indexEntryAttribute.DT_PDFPS;
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else if (mime.startsWith("text/")) doctype = indexEntryAttribute.DT_TEXT;
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else if (mime.startsWith("image/")) doctype = indexEntryAttribute.DT_IMAGE;
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else if (mime.startsWith("audio/")) doctype = indexEntryAttribute.DT_AUDIO;
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else if (mime.startsWith("video/")) doctype = indexEntryAttribute.DT_MOVIE;
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//bz2 = application/x-bzip2
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//dvi = application/x-dvi
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//gz = application/gzip
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//hqx = application/mac-binhex40
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//lha = application/x-lzh
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//lzh = application/x-lzh
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//pac = application/x-ns-proxy-autoconfig
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//php = application/x-httpd-php
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//phtml = application/x-httpd-php
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//rss = application/xml
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//tar = application/tar
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//tex = application/x-tex
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//tgz = application/tar
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//torrent = application/x-bittorrent
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//xhtml = application/xhtml+xml
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//xla = application/msexcel
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//xls = application/msexcel
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//xsl = application/xml
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//xml = application/xml
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//Z = application/x-compress
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//zip = application/zip
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return doctype;
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}
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// language calculation
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public static String language(URL url) {
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String language = "uk";
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String host = url.getHost();
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int pos = host.lastIndexOf(".");
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if ((pos > 0) && (host.length() - pos == 3)) language = host.substring(pos + 1).toLowerCase();
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return language;
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}
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}
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