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129 lines
4.0 KiB
129 lines
4.0 KiB
// Surrogate.java
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// (C) 2009 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 15.04.2009 on http://yacy.net
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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.crawler;
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import java.net.MalformedURLException;
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import java.text.ParseException;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import de.anomic.kelondro.util.DateFormatter;
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import de.anomic.plasma.plasmaParserDocument;
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import de.anomic.yacy.yacyURL;
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public class Surrogate extends HashMap<String, String> {
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private static final long serialVersionUID = -2050291583515701559L;
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public Surrogate() {
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super();
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}
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/*
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DC according to rfc 5013
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* dc_title
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* dc_creator
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* dc_subject
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* dc_description
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* dc_publisher
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dc_contributor
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dc_date
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dc_type
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* dc_format
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* dc_identifier
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* dc_source
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dc_language
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dc_relation
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dc_coverage
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dc_rights
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*/
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public Date date() {
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String d = this.get("docdatetime");
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if (d == null) d = this.get("dc:Date");
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if (d == null) return null;
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try {
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return DateFormatter.parseISO8601(d);
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} catch (ParseException e) {
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e.printStackTrace();
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return new Date();
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}
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}
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public yacyURL url() {
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String u = this.get("url");
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if (u == null) u = this.get("dc:Identifier");
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if (u == null) return null;
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try {
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return new yacyURL(u, null);
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} catch (MalformedURLException e) {
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e.printStackTrace();
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return null;
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}
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}
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public String language() {
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String l = this.get("language");
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if (l == null) l = this.get("dc:Language");
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if (l == null) return "en"; else return l;
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}
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public String title() {
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String t = this.get("title");
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if (t == null) t = this.get("dc:Title");
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t = stripCDATA(t);
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if (t == null) return "";
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return t;
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}
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public String body() {
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String t = this.get("body");
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if (t == null) t = this.get("dc:Description");
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t = stripCDATA(t);
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if (t == null) return "";
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return t;
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}
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public String[] categories() {
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String t = this.get("categories");
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if (t == null) this.get("dc:Subject");
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t = stripCDATA(t);
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if (t == null) return new String[]{};
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return t.split(";");
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}
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private String stripCDATA(String s) {
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if (s == null) return null;
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s = s.trim();
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if (s.startsWith("<![CDATA[")) s = s.substring(9);
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if (s.endsWith("]]")) s = s.substring(0, s.length() - 2);
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return s;
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}
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public plasmaParserDocument document() {
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HashSet<String> languages = new HashSet<String>();
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languages.add(language());
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return new plasmaParserDocument(url(), "text/html", "utf-8", languages,
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categories(), title(), "",
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null, "",
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body().getBytes(), null, null);
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}
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} |