mirror of
https://github.com/yacy/yacy_search_server.git
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b79f4f062f
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6426 6c8d7289-2bf4-0310-a012-ef5d649a1542
251 lines
10 KiB
Java
251 lines
10 KiB
Java
// PMHReader
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// (C) 2009 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 30.09.2009 on http://yacy.net
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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: 2009-09-23 23:26:14 +0200 (Mi, 23 Sep 2009) $
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// $LastChangedRevision: 6340 $
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// $LastChangedBy: low012 $
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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.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.net.MalformedURLException;
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import net.yacy.document.content.DCEntry;
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import net.yacy.document.content.file.SurrogateReader;
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import net.yacy.kelondro.data.meta.DigestURI;
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import de.anomic.crawler.retrieval.HTTPLoader;
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import de.anomic.crawler.retrieval.LoaderDispatcher;
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import de.anomic.crawler.retrieval.Request;
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import de.anomic.crawler.retrieval.Response;
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public class PMHReader {
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LoaderDispatcher loader;
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public PMHReader(LoaderDispatcher loader) {
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this.loader = loader;
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}
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public void load(DigestURI source) throws IOException {
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Response response = this.loader.load(source, true, true, CrawlProfile.CACHE_STRATEGY_NOCACHE);
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load(response);
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}
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public static void load0(DigestURI source) throws IOException {
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Response response = HTTPLoader.load(new Request(source, null));
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load(response);
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}
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private static void load(Response response) throws IOException {
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byte[] b = response.getContent();
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SurrogateReader sr = new SurrogateReader(new ByteArrayInputStream(b), 100);
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Thread srt = new Thread(sr);
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srt.start();
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DCEntry dce;
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while ((dce = sr.take()) != DCEntry.poison) {
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System.out.println(dce.toString());
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}
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try {
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srt.join();
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} catch (InterruptedException e) {}
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}
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public static StringBuilder escape(final String s) {
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final int len = s.length();
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final StringBuilder sbuf = new StringBuilder(len + 10);
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for (int i = 0; i < len; i++) {
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final int ch = s.charAt(i);
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if ('A' <= ch && ch <= 'Z') { // 'A'..'Z'
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sbuf.append((char)ch);
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} else if ('a' <= ch && ch <= 'z') { // 'a'..'z'
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sbuf.append((char)ch);
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} else if ('0' <= ch && ch <= '9') { // '0'..'9'
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sbuf.append((char)ch);
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} else if (ch == ' ') { // space
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sbuf.append("%20");
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} else if (ch == '&' || ch == ':' // unreserved
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|| ch == '-' || ch == '_'
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|| ch == '.' || ch == '!'
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|| ch == '~' || ch == '*'
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|| ch == '\'' || ch == '('
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|| ch == ')' || ch == ';') {
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sbuf.append((char)ch);
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}
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}
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return sbuf;
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}
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public static String unescape(final String s) {
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final int l = s.length();
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final StringBuilder sbuf = new StringBuilder(l);
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int ch = -1;
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int b, sumb = 0;
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for (int i = 0, more = -1; i < l; i++) {
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/* Get next byte b from URL segment s */
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switch (ch = s.charAt(i)) {
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case '%':
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if (i + 2 < l) {
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ch = s.charAt(++i);
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int hb = (Character.isDigit ((char) ch) ? ch - '0' : 10 + Character.toLowerCase((char) ch) - 'a') & 0xF;
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ch = s.charAt(++i);
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int lb = (Character.isDigit ((char) ch) ? ch - '0' : 10 + Character.toLowerCase ((char) ch) - 'a') & 0xF;
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b = (hb << 4) | lb;
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} else {
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b = ch;
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}
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break;
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case '+':
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b = ' ';
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break;
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default:
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b = ch;
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}
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}
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return sbuf.toString();
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}
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public static void main(String[] args) {
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// get one server with
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// http://roar.eprints.org/index.php?action=csv
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// list records from oai-pmh like
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// http://opus.bsz-bw.de/fhhv/oai2/oai2.php?verb=ListRecords&metadataPrefix=oai_dc
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try {
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load0(new DigestURI(args[0], null));
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} catch (MalformedURLException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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/*
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http://an.oa.org/OAI-script?verb=GetRecord&identifier=oai:arXiv.org:hep-th/9901001&metadataPrefix=oai_dc
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special characters in URIs must be encoded, the correct form of the above GET request URL is:
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http://an.oa.org/OAI-script?verb=GetRecord&identifier=oai%3AarXiv.org%3Ahep-th%2F9901001&metadataPrefix=oai_dc
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"/","%2F"
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"?","%3F"
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"#","%23"
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"=","%3D"
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"&","%26"
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":","%3A"
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";","%3B"
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" ","%20"
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"%","%25"
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"+","%2B"
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GetRecord
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http://arXiv.org/oai2?verb=GetRecord&identifier=oai:arXiv.org:cs/0112017&metadataPrefix=oai_dc
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http://opus.bsz-bw.de/fhhv/oai2/oai2.php?verb=GetRecord&identifier=oai:opus.bsz-bw.de-fhhv:6&metadataPrefix=oai_dc
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Identify
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http://memory.loc.gov/cgi-bin/oai?verb=Identify
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ListIdentifiers
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http://an.oa.org/OAI-script?verb=ListIdentifiers&from=1998-01-15&metadataPrefix=oldArXiv&set=physics:hep
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http://an.oa.org/OAI-script?verb=ListIdentifiers&resumptionToken=xxx45abttyz
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http://www.perseus.tufts.edu/cgi-bin/pdataprov?verb=ListIdentifiers&metadataPrefix=olac&from=2001-01-01&until=2001-01-01&set=Perseus:collection:PersInfo
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ListMetadataFormats
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http://www.perseus.tufts.edu/cgi-bin/pdataprov?verb=ListMetadataFormats&identifier=oai:perseus.tufts.edu:Perseus:text:1999.02.0119
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http://memory.loc.gov/cgi-bin/oai?verb=ListMetadataFormats
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http://memory.loc.gov/cgi-bin/oai?verb=ListMetadataFormats&identifier=oai:lcoa1.loc.gov:loc.rbc/rbpe.00000111
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http://opus.bsz-bw.de/fhhv/oai2/oai2.php?verb=ListMetadataFormats
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ListRecords
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http://opus.bsz-bw.de/fhhv/oai2/oai2.php?verb=ListRecords&metadataPrefix=oai_dc
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http://opus.bsz-bw.de/fhhv/oai2/oai2.php?verb=ListRecords&resumptionToken=455
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http://opus.bsz-bw.de/fhhv/oai2/oai2.php?verb=ListRecords&resumptionToken=890
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http://an.oa.org/OAI-script?verb=ListRecords&from=1998-01-15&set=physics:hep&metadataPrefix=oai_rfc1807
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http://www.perseus.tufts.edu/cgi-b:in/pdataprov?verb=ListRecords&from=2002-05-01T14:15:00Z&until=2002-05-01T14:20:00Z&metadataPrefix=oai_dc
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http://memory.loc.gov/cgi-bin/oai?verb=ListRecords&from=2002-06-01T02:00:00Z&until=2002-06-01T03:00:00Z&metadataPrefix=oai_marc
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ListSets
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http://an.oa.org/OAI-script?verb=ListSets
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http://purl.org/alcme/etdcat/servlet/OAIHandler?verb=ListSets
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urn identifier koennen ueber den resolver der d-nb aufgeloest werden:
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http://nbn-resolving.de/urn:nbn:de:bsz:960-opus-1860
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<?xml version="1.0" encoding="UTF-8"?>
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<OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/
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http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd">
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<responseDate>2009-10-01T22:20:04Z</responseDate>
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<request verb="ListRecords" metadataPrefix="oai_dc">http://opus.bsz-bw.de/fhhv/oai2/oai2.php</request>
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<ListRecords>
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<record>
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<header>
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<identifier>oai:opus.bsz-bw.de-fhhv:1</identifier>
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<datestamp>2008-03-04T12:17:33Z</datestamp>
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<setSpec>ddc:020</setSpec>
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<setSpec>pub-type:2</setSpec>
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<setSpec>has-source-swb:false</setSpec>
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</header>
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<metadata>
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<oai_dc:dc
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xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
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http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
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<dc:title>Teaching Information Literacy with the Lerninformationssystem</dc:title>
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<dc:creator>Hauschke, Christian</dc:creator>
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<dc:creator>Ullmann, Nadine</dc:creator>
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<dc:subject>Informationskompetenz</dc:subject>
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<dc:subject>E-Learning</dc:subject>
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<dc:subject>Bibliothek</dc:subject>
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<dc:subject>Informationsvermittlung</dc:subject>
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<dc:subject>Wissenschaftliches Arbeiten</dc:subject>
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<dc:subject>information literacy</dc:subject>
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<dc:subject>e-learning</dc:subject>
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<dc:subject>library</dc:subject>
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<dc:subject>information dissemination</dc:subject>
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<dc:subject>Library and information sciences</dc:subject>
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<dc:description>A German university has developed a learning information system to improve information literacy among German students. An online tutorial based on this Lerninformationssystem has been developed. The structure of this learning information system is described, an online tutorial based on it is illustrated, and the different learning styles that it supports are indicated.</dc:description>
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<dc:publisher>Fachhochschule Hannover</dc:publisher>
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<dc:publisher>Sonstige Einrichtungen. Sonstige Einrichtungen</dc:publisher>
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<dc:date>2006</dc:date>
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<dc:type>Article</dc:type>
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<dc:format>application/pdf</dc:format>
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<dc:identifier>urn:nbn:de:bsz:960-opus-10</dc:identifier>
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<dc:identifier>http://opus.bsz-bw.de/fhhv/volltexte/2008/1/</dc:identifier>
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<dc:source>Australian Academic & Research Libraries, 37 (1), S. 55-60</dc:source>
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<dc:language>eng</dc:language>
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<dc:rights>http://creativecommons.org/licenses/by/2.0/de/deed.de</dc:rights>
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</oai_dc:dc>
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</metadata>
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</record>
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<resumptionToken
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expirationDate="2009-10-02T20:20:04Z"
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completeListSize="226"
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cursor="0">119</resumptionToken>
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</ListRecords>
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</OAI-PMH>
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*/ |