de.tsl2.nano.util.Translator Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of tsl2.nano.common Show documentation
Show all versions of tsl2.nano.common Show documentation
TSL2 Framework Commons (Collections, Actions/Excecution, Readers, Xml, Print, Mail, FuzzyFinder, Proxies, Network-Structure)
package de.tsl2.nano.util;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.text.MessageFormat;
import java.util.Collections;
import java.util.Enumeration;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.ResourceBundle;
import java.util.Set;
import java.util.TreeMap;
import org.apache.commons.logging.Log;
import de.tsl2.nano.core.ENV;
import de.tsl2.nano.core.ManagedException;
import de.tsl2.nano.core.Messages;
import de.tsl2.nano.core.log.LogFactory;
import de.tsl2.nano.core.util.ConcurrentUtil;
import de.tsl2.nano.core.util.FileUtil;
import de.tsl2.nano.core.util.NetUtil;
import de.tsl2.nano.core.util.StringUtil;
/**
* machine translator using a REST service from WorldLingo.
*
* @author Tom
*/
public class Translator {
private static final Log LOG = LogFactory.getLog(Translator.class);
/** WorldLingo URL */
private static final String URL_TANSLATION_TEMPL =
"http://www.worldlingo.com/S000.1/api?wl_srclang={0}&wl_trglang={1}&wl_password=secret&wl_mimetype=text%2Fplain&wl_data={2}";
//Der KEY ist mit einem google-account + projekt verbunden. Fuer dieses Projekt muss 'abrechenbar' aktiviert sein, so dass
//Bank-Konto-Daten verügbar sein müssen :-(
// String googleTranslateUrl =
// "https://www.googleapis.com/language/translate/v2?key=INSERT-YOUR-KEY&q=hello%20world&source=en&target=de";
public static final String translate(Locale srcLang, Locale destLang, String words) {
words = StringUtil.spaceCamelCase(words);
words = URLEncoder.encode(words);
String request = MessageFormat.format(URL_TANSLATION_TEMPL, srcLang.getLanguage(), destLang.getLanguage(), words);
try {
return URLDecoder.decode(NetUtil.get(request).substring(2).trim(), "UTF-8");
} catch (UnsupportedEncodingException e) {
ManagedException.forward(e);
return null;
}
}
/**
* translates all property values from srcLang to destLang. splits camel case expressions.
*
* @param name bundle name
* @param origin properties to translate
* @param srcLang source language
* @param destLang destination language
* @return translated properties
*/
@SuppressWarnings("rawtypes")
public static Properties translateProperties(String name,
Map origin,
Locale srcLang,
Locale destLang/*, int requestWordCount*/) {
LOG.info("starting translation of " + origin.size() + " words from <" + srcLang.getLanguage() + "> to <" + destLang.getLanguage() + ">");
Set keySet = origin.keySet();
Properties target = new Properties();
int tries = 0;
String word = null;
for (Object k : keySet) {
try {
word = origin.get(k).toString();
if (word.matches("[\\w\\s]+")) //translate only 'real' words!
target.put(k, translate(srcLang, destLang, word));
} catch (Exception e) {
if (tries++ < 20) {
LOG.info("...retrying translation on word " + target.size() + " / " + origin.size());
ConcurrentUtil.sleep(3000);
try {
target.put(k, translate(srcLang, destLang, word));
continue;
} catch (Exception e1) {
//Ok, log only the first error and stop
}
}
LOG.error("stopping translation on word '" + origin.get(k) + "' in cause of error: " + e.toString());
LOG.info("only " + target.size() + " of " + origin.size() + " were translated!");
break;
}
}
return target;
}
/**
* tries to translate all properties on one request. if values have more than one word (myEntry=one two), the
* mapping will fail
*
* @param name bundle name
* @param origin properties to translate
* @param srcLang source language
* @param destLang destination language
* @return translated properties
*/
@SuppressWarnings("rawtypes")
public static Map translatePropertiesFast(String name,
Map origin,
Locale srcLang,
Locale destLang/*, int requestWordCount*/) {
String words = StringUtil.toString(origin.values(), -1);//.replaceAll("[,\\s]+", " ");
if (words.length() > 1)
words = words.substring(1, words.length()-1);
String trans = translate(srcLang, destLang, words);
//create the target properties
String[] t = trans.split("[,]\\s*");
Properties target = new Properties();
int i = 0;
String tos[];
StringBuilder tt = new StringBuilder();
String key;
for (Object k : origin.keySet()) {
key = (String) origin.get(k);
tos = /*CollectionUtil.concat(*/StringUtil.splitCamelCase(key)/*, StringUtil.splitWordBinding(key))*/;
tt.setLength(0);
//concat camelcase words...works only on same length
for (int j = 0; j < tos.length; j++) {
if (i+1 < t.length)
tt.append(t[i++] + " ");
}
// System.out.println(k + " ("+ origin.get(k) + ") --> " + tt);
target.put(k, tt.length() > 0 ? tt.toString().trim() : origin.get(k));
}
return target;
}
/**
* translates all property values from srcLang to destLang. Uses the {@link ResourceBundle} wrapper {@link Messages}
* to get the values for the given keys. splits camel case expressions. writes the bundle to a file and reloads the
* resource bundles.
*
* @param name bundle name
* @param keySet key-set of a resource bundle.
* @param srcLang source language
* @param destLang destination language
* @return translated properties
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public static Map translateBundle(String name, Set keySet, Locale srcLang, Locale destLang) {
final Map map = new TreeMap(); //alphabetic sorted entries
Map p = new LinkedHashMap();
Map komplex = new LinkedHashMap();
String txt;
for (String k : keySet) {
//TODO: key/values are shifted in more komplex bundles. the framework bundles have only en/de!
if (!ENV.get("app.translate.bundle.framework", false) && k.startsWith("tsl2nano"))
continue;
txt = Messages.getString(k);
if (txt.indexOf(' ') == -1 && txt.indexOf('.') == -1) {
p.put(k, txt);
if (p.size() >= 100) {//request may exceed max length (-->Http 413)
map.putAll(translatePropertiesFast(name, p, srcLang, destLang));
p.clear();
}
} else
komplex.put(k, txt);
}
map.putAll(translatePropertiesFast(name, p, srcLang, destLang));
//TODO: is the service now able to translate sentences?
map.putAll(translateProperties(name, komplex, srcLang, destLang));
Properties props = new Properties() {
@Override
public synchronized Enumeration