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325 lines
19 KiB
325 lines
19 KiB
/**
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* Vocabulary_p
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* Copyright 2012 by Michael Peter Christen, mc@yacy.net, Frankfurt am Main, Germany
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* First released 07.05.2012 at http://yacy.net
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program in the file lgpl21.txt
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.net.MalformedURLException;
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import java.nio.charset.Charset;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import java.util.Set;
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import java.util.regex.Pattern;
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import net.yacy.cora.document.id.DigestURL;
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import net.yacy.cora.document.id.MultiProtocolURL;
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import net.yacy.cora.language.synonyms.SynonymLibrary;
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import net.yacy.cora.lod.vocabulary.DCTerms;
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import net.yacy.cora.lod.vocabulary.Tagging;
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import net.yacy.cora.lod.vocabulary.Tagging.SOTuple;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.cora.util.CommonPattern;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.data.WorkTables;
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import net.yacy.document.LibraryProvider;
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import net.yacy.kelondro.data.meta.URIMetadataNode;
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import net.yacy.kelondro.util.FileUtils;
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import net.yacy.search.Switchboard;
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import net.yacy.search.index.Segment;
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import net.yacy.server.serverObjects;
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import net.yacy.server.serverSwitch;
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public class Vocabulary_p {
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public static serverObjects respond(@SuppressWarnings("unused") final RequestHeader header, final serverObjects post, final serverSwitch env) {
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final Switchboard sb = (Switchboard) env;
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final serverObjects prop = new serverObjects();
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Collection<Tagging> vocs = LibraryProvider.autotagging.getVocabularies();
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String vocabularyName = (post == null) ? null : post.get("vocabulary", null);
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String discovername = (post == null) ? null : post.get("discovername", null);
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Tagging vocabulary = vocabularyName == null ? null : LibraryProvider.autotagging.getVocabulary(vocabularyName);
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if (vocabulary == null) vocabularyName = null;
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if (post != null) {
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try {
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// create a vocabulary
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if (vocabulary == null && discovername != null && discovername.length() > 0) {
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// store this call as api call
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sb.tables.recordAPICall(post, "Vocabulary_p.html", WorkTables.TABLE_API_TYPE_CRAWLER, "vocabulary creation for " + discovername);
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// get details of creation
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String discoverobjectspace = post.get("discoverobjectspace", "");
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MultiProtocolURL discoveruri = null;
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if (discoverobjectspace.length() > 0) try {discoveruri = new MultiProtocolURL(discoverobjectspace);} catch (final MalformedURLException e) {}
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if (discoveruri == null) discoverobjectspace = "";
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Map<String, Tagging.SOTuple> table = new LinkedHashMap<String, Tagging.SOTuple>();
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File propFile = LibraryProvider.autotagging.getVocabularyFile(discovername);
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final boolean discoverNot = post.get("discovermethod", "").equals("none");
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final boolean discoverFromPath = post.get("discovermethod", "").equals("path");
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final boolean discoverFromTitle = post.get("discovermethod", "").equals("title");
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final boolean discoverFromTitleSplitted = post.get("discovermethod", "").equals("titlesplitted");
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final boolean discoverFromAuthor = post.get("discovermethod", "").equals("author");
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final boolean discoverFromCSV = post.get("discovermethod", "").equals("csv");
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final String discoverFromCSVPath = post.get("discoverpath", "").replaceAll("%20", " ");
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final String discoverFromCSVCharset = post.get("charset", "UTF-8");
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final int discovercolumnliteral = post.getInt("discovercolumnliteral", 0);
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final int discovercolumnsynonyms = post.getInt("discovercolumnsynonyms", -1);
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final int discovercolumnobjectlink = post.getInt("discovercolumnobjectlink", -1);
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final File discoverFromCSVFile = discoverFromCSVPath.length() > 0 ? new File(discoverFromCSVPath) : null;
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final boolean discoverenrichsynonyms = post.get("discoversynonymsmethod", "none").equals("enrichsynonyms");
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final boolean discoverreadcolumn = post.get("discoversynonymsmethod", "none").equals("readcolumn");
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Segment segment = sb.index;
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String t;
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if (!discoverNot) {
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if (discoverFromCSV && discoverFromCSVFile != null && discoverFromCSVFile.exists()) {
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// auto-detect charset, used code from http://jchardet.sourceforge.net/; see also: http://www-archive.mozilla.org/projects/intl/chardet.html
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FileUtils.checkCharset(discoverFromCSVFile, discoverFromCSVCharset, true);
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// read file
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BufferedReader r = new BufferedReader(new InputStreamReader(new FileInputStream(discoverFromCSVFile), discoverFromCSVCharset));
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String line = null;
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Pattern semicolon = Pattern.compile(";");
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Map<String, String> synonym2literal = new HashMap<>(); // helper map to check if there are double synonyms
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while ((line = r.readLine()) != null) {
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if (line.length() == 0) continue;
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String[] l = semicolon.split(line);
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if (l.length == 0) l = new String[]{line};
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String literal = discovercolumnliteral < 0 || l.length <= discovercolumnliteral ? null : l[discovercolumnliteral].trim();
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if (literal == null) continue;
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literal = normalizeLiteral(literal);
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String objectlink = discovercolumnobjectlink < 0 || l.length <= discovercolumnobjectlink ? null : l[discovercolumnobjectlink].trim();
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if (literal.length() > 0) {
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String synonyms = "";
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if (discoverenrichsynonyms) {
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Set<String> sy = SynonymLibrary.getSynonyms(literal);
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if (sy != null) {
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for (String s: sy) synonyms += "," + s;
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}
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} else if (discoverreadcolumn) {
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synonyms = discovercolumnsynonyms < 0 || l.length <= discovercolumnsynonyms ? null : l[discovercolumnsynonyms].trim();
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synonyms = normalizeLiteral(synonyms);
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} else {
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synonyms = Tagging.normalizeTerm(literal);
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}
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// check double synonyms
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if (synonyms.length() > 0) {
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String oldliteral = synonym2literal.get(synonyms);
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if (oldliteral != null && !literal.equals(oldliteral)) {
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// replace old entry with combined new
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table.remove(oldliteral);
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String newliteral = oldliteral + "," + literal;
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literal = newliteral;
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}
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synonym2literal.put(synonyms, literal);
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}
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// store term
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table.put(literal, new Tagging.SOTuple(synonyms, objectlink == null ? "" : objectlink));
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}
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}
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} else {
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Iterator<DigestURL> ui = segment.urlSelector(discoveruri, Long.MAX_VALUE, 100000);
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while (ui.hasNext()) {
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DigestURL u = ui.next();
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String u0 = u.toNormalform(true);
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t = "";
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if (discoverFromPath) {
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int exp = u0.lastIndexOf('.');
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if (exp < 0) continue;
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int slp = u0.lastIndexOf('/', exp);
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if (slp < 0) continue;
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t = u0.substring(slp, exp);
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int p;
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while ((p = t.indexOf(':')) >= 0) t = t.substring(p + 1);
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while ((p = t.indexOf('=')) >= 0) t = t.substring(p + 1);
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}
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if (discoverFromTitle || discoverFromTitleSplitted) {
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URIMetadataNode m = segment.fulltext().getMetadata(u.hash());
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if (m != null) t = m.dc_title();
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if (t.endsWith(".jpg") || t.endsWith(".gif")) continue;
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}
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if (discoverFromAuthor) {
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URIMetadataNode m = segment.fulltext().getMetadata(u.hash());
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if (m != null) t = m.dc_creator();
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}
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t = t.replaceAll("_", " ").replaceAll("\"", " ").replaceAll("'", " ").replaceAll(",", " ").replaceAll(" ", " ").trim();
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if (t.isEmpty()) continue;
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if (discoverFromTitleSplitted) {
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String[] ts = CommonPattern.SPACE.split(t);
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for (String s: ts) {
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if (s.isEmpty()) continue;
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if (s.endsWith(".jpg") || s.endsWith(".gif")) continue;
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table.put(s, new Tagging.SOTuple(Tagging.normalizeTerm(s), u0));
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}
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} else if (discoverFromAuthor) {
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String[] ts = CommonPattern.SEMICOLON.split(t); // author names are often separated by ';'
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for (String s: ts) {
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if (s.isEmpty()) continue;
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int p = s.indexOf(','); // check if there is a reversed method to mention the name
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if (p >= 0) s = s.substring(p + 1).trim() + " " + s.substring(0, p).trim();
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table.put(s, new Tagging.SOTuple(Tagging.normalizeTerm(s), u0));
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}
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} else {
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table.put(t, new Tagging.SOTuple(Tagging.normalizeTerm(t), u0));
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}
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}
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}
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}
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Tagging newvoc = new Tagging(discovername, propFile, discoverobjectspace, table);
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LibraryProvider.autotagging.addVocabulary(newvoc);
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vocabularyName = discovername;
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vocabulary = newvoc;
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} else {
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// check if objectspace was set
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vocabulary.setObjectspace(post.get("objectspace", vocabulary.getObjectspace() == null ? "" : vocabulary.getObjectspace()));
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// check if a term was added
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if (post.get("add_new", "").equals("checked") && post.get("newterm", "").length() > 0) {
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String objectlink = post.get("newobjectlink", "");
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if (objectlink.length() > 0) try {
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objectlink = new MultiProtocolURL(objectlink).toNormalform(true);
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} catch (final MalformedURLException e) {}
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vocabulary.put(post.get("newterm", ""), post.get("newsynonyms", ""), objectlink);
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}
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// check if a term was modified
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for (Map.Entry<String, String> e : post.entrySet()) {
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if (e.getKey().startsWith("modify_") && e.getValue().equals("checked")) {
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String term = e.getKey().substring(7);
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String synonyms = post.get("synonyms_" + term, "");
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String objectlink = post.get("objectlink_" + term, "");
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vocabulary.put(term, synonyms, objectlink);
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}
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}
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// check if the vocabulary shall be cleared
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if (post.get("clear_table", "").equals("checked") ) {
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vocabulary.clear();
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}
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// check if the vocabulary shall be deleted
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if (vocabulary != null && post.get("delete_vocabulary", "").equals("checked") ) {
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LibraryProvider.autotagging.deleteVocabulary(vocabularyName);
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vocabulary = null;
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vocabularyName = null;
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}
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// check if a term shall be deleted
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if (vocabulary != null && vocabulary.size() > 0) for (Map.Entry<String, String> e : post.entrySet()) {
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if (e.getKey().startsWith("delete_") && e.getValue().equals("checked")) {
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String term = e.getKey().substring(7);
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vocabulary.delete(term);
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}
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}
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// check the isFacet property
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if (vocabulary != null && post.containsKey("set")) {
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boolean isFacet = post.getBoolean("isFacet");
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vocabulary.setFacet(isFacet);
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Set<String> omit = env.getConfigSet("search.result.show.vocabulary.omit");
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if (isFacet) omit.remove(vocabularyName); else omit.add(vocabularyName);
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env.setConfig("search.result.show.vocabulary.omit", omit);
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}
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}
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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}
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}
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int count = 0;
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for (Tagging v: vocs) {
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prop.put("vocabularyset_" + count + "_name", v.getName());
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prop.put("vocabularyset_" + count + "_selected", ((vocabularyName != null && vocabularyName.equals(v.getName())) || (discovername != null && discovername.equals(v.getName()))) ? 1 : 0);
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count++;
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}
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prop.put("vocabularyset", count);
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prop.put("create", vocabularyName == null ? 1 : 0);
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if (vocabulary == null) {
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prop.put("edit", 0);
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} else {
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prop.put("edit", 1);
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boolean editable = vocabulary.getFile() != null && vocabulary.getFile().exists();
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prop.put("edit_editable", editable ? 1 : 0);
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prop.putHTML("edit_editable_file", editable ? vocabulary.getFile().getAbsolutePath() : "");
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prop.putHTML("edit_name", vocabulary.getName());
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prop.putXML("edit_namexml", vocabulary.getName());
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prop.putHTML("edit_namespace", vocabulary.getNamespace());
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prop.put("edit_isFacet", vocabulary.isFacet() ? 1 : 0);
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prop.put("edit_size", vocabulary.size());
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prop.putHTML("edit_predicate", vocabulary.getPredicate());
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prop.putHTML("edit_prefix", Tagging.DEFAULT_PREFIX);
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prop.putHTML("edit_editable_objectspace", vocabulary.getObjectspace() == null ? "" : vocabulary.getObjectspace());
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prop.putHTML("edit_editable_objectspacepredicate", DCTerms.references.getPredicate());
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int c = 0;
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boolean dark = false;
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int osl = vocabulary.getObjectspace() == null ? 0 : vocabulary.getObjectspace().length();
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Map<String, SOTuple> list = vocabulary.list();
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prop.put("edit_size", list.size());
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for (Map.Entry<String, SOTuple> entry: list.entrySet()) {
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prop.put("edit_terms_" + c + "_editable", editable ? 1 : 0);
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prop.put("edit_terms_" + c + "_dark", dark ? 1 : 0); dark = !dark;
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prop.putXML("edit_terms_" + c + "_label", osl > entry.getValue().getObjectlink().length() ? entry.getKey() : entry.getValue().getObjectlink().substring(osl));
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prop.putHTML("edit_terms_" + c + "_term", entry.getKey());
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prop.putXML("edit_terms_" + c + "_termxml", entry.getKey());
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prop.putHTML("edit_terms_" + c + "_editable_term", entry.getKey());
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String synonymss = entry.getValue().getSynonymsCSV();
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prop.putHTML("edit_terms_" + c + "_editable_synonyms", synonymss);
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if (synonymss.length() > 0) {
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String[] synonymsa = entry.getValue().getSynonymsList();
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for (int i = 0; i < synonymsa.length; i++) {
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prop.put("edit_terms_" + c + "_synonyms_" + i + "_altLabel", synonymsa[i]);
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}
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prop.put("edit_terms_" + c + "_synonyms", synonymsa.length);
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} else {
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prop.put("edit_terms_" + c + "_synonyms", 0);
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}
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prop.putXML("edit_terms_" + c + "_editable_objectlink", entry.getValue().getObjectlink());
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c++;
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if (c > 3000) break;
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}
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prop.put("edit_terms", c);
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}
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// make charset list for import method selector
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int c = 0;
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for (String cs: Charset.availableCharsets().keySet()) {
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prop.putHTML("create_charset_" + c + "_name", cs);
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prop.put("create_charset_" + c + "_selected", cs.equals("windows-1252") ? 1 : 0);
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c++;
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}
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prop.put("create_charset", c);
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// return rewrite properties
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return prop;
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}
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private static String normalizeLiteral(String literal) {
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if (literal == null) return "";
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if (literal.length() > 0 && (literal.charAt(0) == '"' || literal.charAt(0) == '\'')) literal = literal.substring(1);
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if (literal.length() > 0 && (literal.charAt(literal.length() - 1) == '"' || literal.charAt(literal.length() - 1) == '\'')) literal = literal.substring(0, literal.length() - 1);
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return literal;
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}
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}
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