/**
* LibraryProvider.java
* Copyright 2009 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
* first published 01.10.2009 on http://yacy.net
*
* This file is part of YaCy Content Integration
*
* 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/>.
*/
package net.yacy.document;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.MalformedURLException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;
import net.yacy.cora.document.WordCache;
import net.yacy.cora.document.id.MultiProtocolURL;
import net.yacy.cora.geo.GeonamesLocation;
import net.yacy.cora.geo.OpenGeoDBLocation;
import net.yacy.cora.geo.OverarchingLocation;
import net.yacy.cora.language.synonyms.AutotaggingLibrary;
import net.yacy.cora.language.synonyms.SynonymLibrary;
import net.yacy.cora.util.ConcurrentLog;
import net.yacy.crawler.retrieval.URLRewriterLibrary;
import net.yacy.kelondro.util.FileUtils;
public class LibraryProvider {
public static final String path_to_source_dictionaries = "source";
public static final String path_to_did_you_mean_dictionaries = "didyoumean";
public static final String path_to_autotagging_dictionaries = "autotagging";
public static final String path_to_synonym_dictionaries = "synonyms";
public static final String path_to_rewriter_dictionaries = "rewriter";
public static final String disabledExtension = ".disabled";
public static WordCache dymLib = new WordCache(null);
public static AutotaggingLibrary autotagging = null;
public static SynonymLibrary synonyms = null;
public static URLRewriterLibrary urlRewriter = null;
public static OverarchingLocation geoLoc = new OverarchingLocation();
private static File dictSource = null;
private static File dictRoot = null;
public static enum Dictionary {
GEODB0( "geo0", "http://downloads.sourceforge.net/project/opengeodb/Data/0.2.5a/opengeodb-0.2.5a-UTF8-sql.gz" ),
GEODB1( "geo1", "http://fa-technik.adfc.de/code/opengeodb/dump/opengeodb-02624_2011-10-17.sql.gz" ),
GEON0( "geon0", "http://download.geonames.org/export/dump/cities1000.zip" ),
GEON1( "geon1", "http://download.geonames.org/export/dump/cities5000.zip" ),
GEON2( "geon2", "http://download.geonames.org/export/dump/cities15000.zip" ),
DRW0( "drw0", "http://www.ids-mannheim.de/kl/derewo/derewo-v-100000t-2009-04-30-0.1.zip" ),
PND0( "pnd0", "http://downloads.dbpedia.org/3.7-i18n/de/pnd_de.nt.bz2" );
public String nickname, url, filename;
private Dictionary(final String nickname, final String url) {
try {
this.filename = (new MultiProtocolURL(url)).getFileName();
} catch (final MalformedURLException e ) {
assert false;
}
this.nickname = nickname;
this.url = url;
}
public File file() {
return new File(dictSource, this.filename);
}
public File fileDisabled() {
return new File(dictSource, this.filename + disabledExtension);
}
}
/**
* initialize the LibraryProvider as static class. This assigns default paths, and initializes the
* dictionary classes Additionally, if default dictionaries are given in the source path, they are
* translated into the input format inside the DATA/DICTIONARIES directory
*
* @param pathToSource
* @param pathToDICTIONARIES
*/
public static void initialize(final File rootPath) {
dictSource = new File(rootPath, path_to_source_dictionaries);
if ( !dictSource.exists() ) {
dictSource.mkdirs();
}
dictRoot = rootPath;
// initialize libraries
initAutotagging();
activateDeReWo();
initDidYouMean();
initSynonyms();
initRewriter();
integrateOpenGeoDB();
integrateGeonames0(-1);
integrateGeonames1(-1);
integrateGeonames2(100000);
Set<String> allTags = new HashSet<String>() ;
allTags.addAll(autotagging.allTags()); // we must copy this into a clone to prevent circularity
autotagging.addPlaces(geoLoc);
//autotagging.addDictionaries(dymLib.getDictionaries()); // strange results with this: normal word lists are 'too full'
WordCache.learn(allTags);
}
public static void integrateOpenGeoDB() {
final File geo1 = Dictionary.GEODB1.file();
final File geo0 = Dictionary.GEODB0.file();
if ( geo1.exists() ) {
if ( geo0.exists() ) {
geo0.renameTo(Dictionary.GEODB0.fileDisabled());
}
geoLoc.activateLocation(Dictionary.GEODB1.nickname, new OpenGeoDBLocation(geo1, dymLib));
return;
}
if ( geo0.exists() ) {
geoLoc.activateLocation(Dictionary.GEODB0.nickname, new OpenGeoDBLocation(geo0, dymLib));
return;
}
}
public static void integrateGeonames0(long minPopulation) {
final File geon = Dictionary.GEON0.file();
if ( geon.exists() ) {
geoLoc.activateLocation(Dictionary.GEON0.nickname, new GeonamesLocation(geon, dymLib, minPopulation));
return;
}
}
public static void integrateGeonames1(long minPopulation) {
final File geon = Dictionary.GEON1.file();
if ( geon.exists() ) {
geoLoc.activateLocation(Dictionary.GEON1.nickname, new GeonamesLocation(geon, dymLib, minPopulation));
return;
}
}
public static void integrateGeonames2(long minPopulation) {
final File geon = Dictionary.GEON2.file();
if ( geon.exists() ) {
geoLoc.activateLocation(Dictionary.GEON2.nickname, new GeonamesLocation(geon, dymLib, minPopulation));
return;
}
}
public static void initDidYouMean() {
final File dymDict = new File(dictRoot, path_to_did_you_mean_dictionaries);
if ( !dymDict.exists() ) {
dymDict.mkdirs();
}
dymLib = new WordCache(dymDict);
}
public static void initAutotagging() {
final File autotaggingPath = new File(dictRoot, path_to_autotagging_dictionaries);
if ( !autotaggingPath.exists() ) {
autotaggingPath.mkdirs();
}
autotagging = new AutotaggingLibrary(autotaggingPath);
}
public static void initSynonyms() {
final File synonymPath = new File(dictRoot, path_to_synonym_dictionaries);
if ( !synonymPath.exists() ) {
synonymPath.mkdirs();
}
synonyms = new SynonymLibrary(synonymPath);
}
public static void initRewriter() {
final File rewriterPath = new File(dictRoot, path_to_rewriter_dictionaries);
if ( !rewriterPath.exists() ) {
rewriterPath.mkdirs();
}
urlRewriter = new URLRewriterLibrary(rewriterPath);
}
public static void activateDeReWo() {
// translate input files (once..)
final File dymDict = new File(dictRoot, path_to_did_you_mean_dictionaries);
if ( !dymDict.exists() ) {
dymDict.mkdirs();
}
final File derewoInput = LibraryProvider.Dictionary.DRW0.file();
final File derewoOutput = new File(dymDict, derewoInput.getName() + ".words");
if ( !derewoOutput.exists() && derewoInput.exists() ) {
// create the translation of the derewo file (which is easy in this case)
final ArrayList<String> derewo = loadDeReWo(derewoInput, true);
try {
writeWords(derewoOutput, derewo);
} catch (final IOException e ) {
ConcurrentLog.logException(e);
}
}
}
public static void deactivateDeReWo() {
final File dymDict = new File(dictRoot, path_to_did_you_mean_dictionaries);
final File derewoInput = LibraryProvider.Dictionary.DRW0.file();
final File derewoOutput = new File(dymDict, derewoInput.getName() + ".words");
FileUtils.deletedelete(derewoOutput);
}
/*
private static ArrayList<String> loadList(final File file, String comment, boolean toLowerCase) {
final ArrayList<String> list = new ArrayList<String>();
if (!file.exists()) return list;
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
String line;
while ((line = reader.readLine()) != null) {
line = line.trim();
if ((line.length() > 0) && (!(line.startsWith(comment)))) {
list.add((toLowerCase) ? line.trim().toLowerCase() : line.trim());
}
}
reader.close();
} catch (final IOException e) {
Log.logException(e);
} finally {
if (reader != null) try { reader.close(); } catch (final Exception e) {}
}
return list;
}
*/
private static Set<String> sortUnique(final List<String> list) {
final Set<String> s = new TreeSet<String>();
for ( final String t : list ) {
s.add(t);
}
return s;
}
private static void writeWords(final File f, final ArrayList<String> list) throws IOException {
final Set<String> s = sortUnique(list);
final PrintWriter w = new PrintWriter(new BufferedWriter(new FileWriter(f)));
for ( final String t : s ) {
w.println(t);
}
w.close();
}
private static ArrayList<String> loadDeReWo(final File file, final boolean toLowerCase) {
final ArrayList<String> list = new ArrayList<String>();
// get the zip file entry from the file
InputStream derewoTxtEntry;
try {
final ZipFile zip = new ZipFile(file);
derewoTxtEntry = zip.getInputStream(zip.getEntry("derewo-v-100000t-2009-04-30-0.1"));
} catch (final ZipException e ) {
ConcurrentLog.logException(e);
return list;
} catch (final IOException e ) {
ConcurrentLog.logException(e);
return list;
}
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(derewoTxtEntry, "UTF-8"));
String line;
// read until text starts
while ( (line = reader.readLine()) != null ) {
if ( line.startsWith("# -----") ) {
break;
}
}
// read empty line
line = reader.readLine();
// read lines
int p;
//int c;
String w;
while ( (line = reader.readLine()) != null ) {
line = line.trim();
p = line.indexOf(' ', 0);
if ( p > 0 ) {
//c = Integer.parseInt(line.substring(p + 1));
//if (c < 1) continue;
w =
(toLowerCase) ? line.substring(0, p).trim().toLowerCase() : line
.substring(0, p)
.trim();
if ( w.length() < 4 ) {
continue;
}
list.add(w);
}
}
reader.close();
} catch (final IOException e ) {
ConcurrentLog.logException(e);
} finally {
if ( reader != null ) {
try {
reader.close();
} catch (final Exception e ) {
}
}
}
return list;
}
public static void main(final String[] args) {
final File here = new File("dummy").getParentFile();
initialize(new File(here, "DATA/DICTIONARIES"));
System.out.println("dymDict-size = " + dymLib.size());
final Set<StringBuilder> r = dymLib.recommend(new StringBuilder("da"));
for ( final StringBuilder s : r ) {
System.out.println("$ " + s);
}
System.out.println("recommendations: " + r.size());
}
}