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99 lines
4.0 KiB
99 lines
4.0 KiB
// LanguageStatisticsHolder.java
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// -----------------------
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// (C) by Marc Nause; marc.nause@audioattack.de
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// first published on http://www.yacy.net
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// Braunschweig, Germany, 2008
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//
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// $LastChangedDate: 2008-05-23 23:00:00 +0200 (Fr, 23 Mai 2008) $
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// $LastChangedRevision: 4824 $
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// $LastChangedBy: low012 $
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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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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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package de.anomic.language.identification;
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import java.io.File;
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import java.io.FilenameFilter;
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import java.util.Vector;
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/**
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* This class loads and provides several language statistics to the system.
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* It has been implemented as a Singleton since it has to access several
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* files on instanciation which should be avoided since it is very slow.
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*/
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public class LanguageStatisticsHolder extends Vector<LanguageStatistics> {
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private static final long serialVersionUID = -887517724227204705L;
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private String languageDir = "langstats"; // directory that contains language files
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private static LanguageStatisticsHolder instance;
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private LanguageStatisticsHolder() {
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addAllLanguagesInDirectory(languageDir);
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}
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/**
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* method to get an instance of this class, should be used instead of
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* <b>new LanguageStatisticsHolder()</b>
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* @return an instance of the class Identificator
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*/
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public synchronized static LanguageStatisticsHolder getInstance() {
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if (instance == null) {
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instance = new LanguageStatisticsHolder();
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}
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return instance;
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}
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/**
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* Reads all language files from a directory.
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* @param directory the directory that contains the language files
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*/
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private void addAllLanguagesInDirectory(String directory) {
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File folder = new File(directory);
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FilenameFilter filter = new LanguageFilenameFilter();
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File[] allLanguageFiles = folder.listFiles(filter);
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if (allLanguageFiles != null) {
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for (int i = 0; i < allLanguageFiles.length; i++) {
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if(allLanguageFiles[i].isFile()) {
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this.add(new LanguageStatistics(allLanguageFiles[i]));
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}
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}
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}
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}
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}
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