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290 lines
13 KiB
290 lines
13 KiB
// translator.java
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// -------------------------------------
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// part of YACY
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// (C) by Michael Peter Christen; mc@yacy.net
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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//
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// This file ist contributed by Alexander Schier
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// last major change: 25.05.2005
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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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 net.yacy.data;
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.OutputStreamWriter;
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import java.io.PrintWriter;
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import java.nio.charset.StandardCharsets;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Set;
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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.kelondro.util.FileUtils;
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import net.yacy.kelondro.util.Formatter;
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import net.yacy.search.SwitchboardConstants;
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import net.yacy.server.serverSwitch;
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import net.yacy.utils.translation.ExtensionsFileFilter;
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/**
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* Wordlist based translator
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*
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* Uses a Property like file with phrases or single words to translate a string or a file
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* */
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public class Translator {
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public final static String LANG_FILENAME_FILTER = "^.*\\.lng$";
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/**
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* Translate source using entries in translationTable
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* @param source text to translate. Mus be non null.
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* @param translationTable translation entries : text to translate -> translation
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* @return source translated
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*/
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public static String translate(final String source,
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final Map<String, String> translationTable) {
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final Set<Map.Entry<String, String>> entries = translationTable.entrySet();
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StringBuilder builder = new StringBuilder(source);
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for (final Entry<String, String> entry: entries) {
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String key = entry.getKey();
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/* We have to check key is not empty or indexOf would always return a positive value */
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if (key != null && !key.isEmpty()) {
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String translation = entry.getValue();
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int index = builder.indexOf(key);
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if (index < 0) {
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// Filename not available, but it will be printed in Log
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// after all untranslated Strings as "Translated file: "
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if (ConcurrentLog.isFine("TRANSLATOR"))
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ConcurrentLog.fine("TRANSLATOR", "Unused String: "
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+ key);
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} else {
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while (index >= 0) {
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builder.replace(index, index + key.length(),
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translation);
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index = builder.indexOf(key,
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index + translation.length());
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}
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}
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}
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}
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return builder.toString();
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}
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/**
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* Load multiple translationLists from one File. Each List starts with #File: relative/path/to/file
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* (within each file section translation is done in order of the language file entries, on conflicts
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* put the shorter key to the end of the list)
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* @param translationFile the File, which contains the Lists
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* @return a HashMap, which contains for each File a HashMap with translations.
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*/
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public static Map<String, Map<String, String>> loadTranslationsLists(final File translationFile) {
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final Map<String, Map<String, String>> lists = new HashMap<String, Map<String, String>>(); //list of translationLists for different files.
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Map<String, String> translationList = new LinkedHashMap<String, String>(); //current Translation Table (maintaining input order)
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final List<String> list = FileUtils.getListArray(translationFile);
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String forFile = "";
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for (final String line : list) {
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if (!line.isEmpty()) {
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if (line.charAt(0) != '#') {
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final String[] split = line.split("==", 2);
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if (split.length == 2) {
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translationList.put(split[0], split[1]);
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//}else{ //Invalid line
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}
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} else if (line.startsWith("#File:")) {
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if (!forFile.isEmpty()) {
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lists.put(forFile, translationList);
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}
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forFile = line.substring(6).trim(); //skip "#File:"
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if (lists.containsKey(forFile)) {
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translationList = lists.get(forFile);
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} else {
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translationList = new LinkedHashMap<String, String>();
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}
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}
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}
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}
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lists.put(forFile, translationList);
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return lists;
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}
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public static boolean translateFile(final File sourceFile, final File destFile, final File translationFile){
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return translateFile(sourceFile, destFile, loadTranslationsLists(translationFile).get(sourceFile.getName()));
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}
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/**
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* Translate sourceFile to destFile using translationList.
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* @param sourceFile file to translate
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* @param destFile file to write
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* @param translationList map of translations
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* @return true when destFile was sucessfully written, false otherwise
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*/
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public static boolean translateFile(final File sourceFile, final File destFile, final Map<String, String> translationList){
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StringBuilder content = new StringBuilder();
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BufferedReader br = null;
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try{
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br = new BufferedReader(new InputStreamReader(new FileInputStream(sourceFile), StandardCharsets.UTF_8));
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String line = null;
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while( (line = br.readLine()) != null){
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content.append(line).append(net.yacy.server.serverCore.CRLF_STRING);
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}
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br.close();
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} catch(final IOException e) {
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return false;
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} finally {
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if (br !=null) {
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try {
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br.close();
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} catch (final Exception e) {}
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}
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}
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String processedContent = translate(content.toString(), translationList);
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BufferedWriter bw = null;
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try{
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bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(destFile), StandardCharsets.UTF_8));
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bw.write(processedContent);
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bw.close();
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}catch(final IOException e){
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return false;
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} finally {
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if (bw != null) {
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try {
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bw.close();
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} catch (final Exception e) {}
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}
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}
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return true;
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}
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public static boolean translateFiles(final File sourceDir, final File destDir, final File baseDir, final File translationFile, final String extensions){
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return translateFiles(sourceDir, destDir, baseDir, loadTranslationsLists(translationFile), extensions);
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}
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public static boolean translateFiles(final File sourceDir, final File destDir, final File baseDir, final Map<String, Map<String, String>> translationLists, final String extensions){
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destDir.mkdirs();
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final List<String> exts = ListManager.string2vector(extensions);
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final File[] sourceFiles = sourceDir.listFiles(new ExtensionsFileFilter(exts));
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String relativePath;
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for (final File sourceFile : sourceFiles) {
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try {
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relativePath=sourceFile.getAbsolutePath().substring(baseDir.getAbsolutePath().length()+1); //+1 to get the "/"
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relativePath = relativePath.replace(File.separatorChar, '/');
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} catch (final IndexOutOfBoundsException e) {
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ConcurrentLog.severe("TRANSLATOR", "Error creating relative Path for "+sourceFile.getAbsolutePath());
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relativePath = "wrong path"; //not in translationLists
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}
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if (translationLists.containsKey(relativePath)) {
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ConcurrentLog.info("TRANSLATOR", "Translating file: "+ relativePath);
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if(!translateFile(
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sourceFile,
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new File(destDir, sourceFile.getName().replace('/', File.separatorChar)),
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translationLists.get(relativePath)))
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{
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ConcurrentLog.severe("TRANSLATOR", "File error while translating file "+relativePath);
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}
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//}else{
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//serverLog.logInfo("TRANSLATOR", "No translation for file: "+relativePath);
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}
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}
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return true;
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}
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public static boolean translateFilesRecursive(final File sourceDir, final File destDir, final File translationFile, final String extensions, final String notdir){
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final List<File> dirList=FileUtils.getDirsRecursive(sourceDir, notdir);
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dirList.add(sourceDir);
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for (final File file : dirList) {
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if(file.isDirectory() && !file.getName().equals(notdir)) {
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//cuts the sourcePath and prepends the destPath
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File file2 = new File(destDir, file.getPath().substring(sourceDir.getPath().length()));
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translateFiles(file, file2, sourceDir, translationFile, extensions);
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}
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}
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return true;
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}
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public static Map<String, String> langMap(@SuppressWarnings("unused") final serverSwitch env) {
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final String[] ms = CommonPattern.COMMA.split(
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"default/English,de/Deutsch,fr/Français,nl/Nederlands,it/Italiano,es/Español,pt/Portugês,fi/Suomi,se/Svenska,dk/Dansk," +
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"gr/Eλληvικα,sk/Slovensky,cn/汉语/漢語," +
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"ru/Русский,uk/Українська," +
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"hi/हिन्दी"
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);
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final Map<String, String> map = new HashMap<String, String>();
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for (final String element : ms) {
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int p = element.indexOf('/');
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if (p > 0)
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map.put(element.substring(0, p), element.substring(p + 1));
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}
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return map;
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}
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public static boolean changeLang(final serverSwitch env, final File langPath, final String lang) {
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boolean ret = false;
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if ("default".equals(lang) || "default.lng".equals(lang)) {
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env.setConfig("locale.language", "default");
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ret = true;
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} else {
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final String htRootPath = env.getConfig(SwitchboardConstants.HTROOT_PATH, SwitchboardConstants.HTROOT_PATH_DEFAULT);
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final File sourceDir = new File(env.getAppPath(), htRootPath);
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final File destDir = new File(env.getDataPath("locale.translated_html", "DATA/LOCALE/htroot"), lang.substring(0, lang.length() - 4));// cut
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// .lng
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//File destDir = new File(env.getRootPath(), htRootPath + "/locale/" + lang.substring(0, lang.length() - 4));// cut
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// .lng
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final File translationFile = new File(langPath, lang);
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//if (translator.translateFiles(sourceDir, destDir, translationFile, "html")) {
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if (Translator.translateFilesRecursive(sourceDir, destDir, translationFile, "html,template,inc", "locale")) {
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env.setConfig("locale.language", lang.substring(0, lang.length() - 4));
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Formatter.setLocale(env.getConfig("locale.language", "en"));
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try {
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final BufferedWriter bw = new BufferedWriter(new PrintWriter(new FileWriter(new File(destDir, "version"))));
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bw.write(env.getConfig("svnRevision", "Error getting Version"));
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bw.close();
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} catch (final IOException e) {
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// Error
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}
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ret = true;
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}
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}
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return ret;
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}
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public static List<String> langFiles(File langPath) {
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return FileUtils.getDirListing(langPath, Translator.LANG_FILENAME_FILTER);
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}
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}
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