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1f5047b15f
yacy_search_server/htroot/Vocabulary_p.java
Michael Peter Christen 1f5047b15f using precompiled pattern CommonPattern.SEMICOLON for splits
2015-01-29 02:19:41 +01:00

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