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https://github.com/yacy/yacy_search_server.git
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b6fb239e74
some file types are containers for several files. These containers had been parsed in such a way that the set of resulting parsed content was merged into one single document before parsing. Using this parser infrastructure it is not possible to parse document containers that contain individual files. An example is a rss file where the rss messages can be treated as individual documents with their own url reference. Another example is a surrogate file which was treated with a special operation outside of the parser infrastructure. This commit introduces a redesigned parser interface and a new abstract parser implementation. The new parser interface has now only one entry point and returns always a set of parsed documents. In case of single documents the parser method returns a set of one documents. To be compliant with the new interface, the zip and tar parser had been also completely redesigned. All parsers are now much more simple and cleaner in its structure. The switchboard operations had been extended to operate with sets of parsed files, not single parsed files. additionally, parsing of jar manifest files had been added. git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6955 6c8d7289-2bf4-0310-a012-ef5d649a1542
102 lines
3.2 KiB
Java
102 lines
3.2 KiB
Java
//ViewFile.java
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//-----------------------
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//part of YaCy
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//(C) by Michael Peter Christen; mc@yacy.net
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//first published on http://www.anomic.de
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//Frankfurt, Germany, 2004
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//last major change: 12.07.2004
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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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//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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//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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//you must compile this file with
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//javac -classpath .:../Classes Status.java
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//if the shell's current path is HTROOT
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import java.io.ByteArrayInputStream;
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import java.net.MalformedURLException;
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import net.yacy.document.Document;
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import net.yacy.document.Parser;
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import net.yacy.document.parser.rssParser;
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import net.yacy.kelondro.data.meta.DigestURI;
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import de.anomic.crawler.CrawlProfile;
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import de.anomic.crawler.retrieval.Response;
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import de.anomic.http.server.RequestHeader;
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import de.anomic.search.Switchboard;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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public class RSSLoader_p {
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public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
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final serverObjects prop = new serverObjects();
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final Switchboard sb = (Switchboard)env;
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if (post == null) {
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return prop;
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}
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DigestURI url = null;
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final String urlString = post.get("url", "");
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if (urlString.length() > 0) try {
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url = new DigestURI(urlString, null);
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} catch (final MalformedURLException e) {
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return prop;
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}
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// if the resource body was not cached we try to load it from web
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Response entry = null;
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try {
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entry = sb.loader.load(sb.loader.request(url, true, false), CrawlProfile.CacheStrategy.NOCACHE, Long.MAX_VALUE);
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} catch (final Exception e) {
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return prop;
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}
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if (entry == null) return prop;
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byte[] resource = entry.getContent();
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if (resource == null) {
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return prop;
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}
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// now parse the content as rss
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ByteArrayInputStream bais = new ByteArrayInputStream(resource);
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rssParser parser = new rssParser();
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Document[] doc;
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try {
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doc = parser.parse(url, "text/rss", "UTF-8", bais);
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} catch (Parser.Failure e) {
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return prop;
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} catch (InterruptedException e) {
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return prop;
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}
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// get the links out of the rss
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//Map<DigestURI, String> map = doc.getAnchors();
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// put the urls into crawler using the proxy profile
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return prop;
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}
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}
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