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package skrueger.i8n; |
/******************************************************************************* |
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import java.beans.PropertyChangeEvent; |
* Copyright (c) 2009 Martin O. J. Schmitz. |
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import java.beans.PropertyChangeListener; |
* |
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import java.util.ArrayList; |
* This file is part of the SCHMITZM library - a collection of utility |
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import java.util.HashMap; |
* classes based on Java 1.6, focusing (not only) on Java Swing |
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import java.util.List; |
* and the Geotools library. |
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import java.util.Locale; |
* |
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* The SCHMITZM project is hosted at: |
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import javax.swing.JComponent; |
* http://wald.intevation.org/projects/schmitzm/ |
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* |
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import org.apache.log4j.Logger; |
* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public License |
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/** |
* as published by the Free Software Foundation; either version 3 |
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* Represents a {@link HashMap} of translations. |
* of the License, or (at your option) any later version. |
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* toString() returns the appropriate translation |
* |
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* |
* This program is distributed in the hope that it will be useful, |
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* @author @author <a href="mailto:[email protected]">Stefan Alfons Krüger</a> |
* 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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public class Translation extends HashMap<String, String>{ |
* |
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public static final String LOCALECHANGE_PROPERTY = "localechange"; |
* You should have received a copy of the GNU Lesser General Public License (license.txt) |
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public static final String NO_TRANSLATION = "NO TRANSLATION"; |
* along with this program; if not, write to the Free Software |
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public static final String DEFAULT_KEY = "default"; |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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static final Logger log = Logger.getLogger( Translation.class ); |
* or try this link: http://www.gnu.org/licenses/lgpl.html |
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static String activeLang = "fr"; |
* |
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* Contributors: |
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static protected List<PropertyChangeListener> listeners = new ArrayList<PropertyChangeListener>(); |
* Martin O. J. Schmitz - initial API and implementation |
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* Stefan A. Krüger - additional utility classes |
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static { |
******************************************************************************/ |
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package skrueger.i8n; |
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//TODO default aus Locale auslesen und mit möglichen vergleichen... mmm.. vor laden von atlasml immer DEFAULT_KEY, also hier nicht |
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import java.awt.event.ActionEvent; |
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// Get default locale |
import java.awt.event.ActionListener; |
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Locale locale = Locale.getDefault(); |
import java.beans.PropertyChangeEvent; |
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setActiveLang(locale.getLanguage()); |
import java.beans.PropertyChangeListener; |
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} |
import java.util.ArrayList; |
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import java.util.HashMap; |
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@Override |
import java.util.List; |
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/** |
import java.util.Locale; |
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* @comment To make a copy of a translation see methods toOneLine() and fromOneLine() |
import java.util.Random; |
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*/ |
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public Translation clone() { |
import javax.swing.JComponent; |
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return (Translation) super.clone(); |
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} |
import org.apache.log4j.Logger; |
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|
|
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/** |
/** |
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* Get the two-letter language sting that is active |
* Represents a {@link HashMap} of translations. toString() returns the |
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*/ |
* appropriate translation |
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public static String getActiveLang() { |
* |
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return activeLang; |
* @author @author <a href="mailto:[email protected]">Stefan Alfons |
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} |
* Krüger</a> |
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*/ |
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/** |
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* Set up the {@link Translation}-system to use language. If a change is performed, events are fired to listeners. Nothing is done if the new language equals the old language. |
public class Translation extends HashMap<String, String> { |
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* |
public static final String LOCALECHANGE_PROPERTY = "localechange"; |
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* @param newLang The ISO Code of the new active language |
public static final String NO_TRANSLATION = "NO TRANSLATION"; |
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*/ |
public static final String DEFAULT_KEY = "default"; |
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public static void setActiveLang(String newLang) { |
static final Logger log = Logger.getLogger(Translation.class); |
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if (getActiveLang().equals(newLang)) { |
static String activeLang = Locale.getDefault().getLanguage(); |
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return; |
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} |
static protected List<PropertyChangeListener> listeners = new ArrayList<PropertyChangeListener>(); |
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if (!I8NUtil.isValidISOLangCode(newLang)) { |
static { |
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throw new IllegalArgumentException("'"+newLang+"' is not a valid ISO language code."); |
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} |
// TODO default aus Locale auslesen und mit möglichen vergleichen... |
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// mmm.. vor laden von atlasml immer DEFAULT_KEY, also hier nicht |
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Locale newLocale = new Locale(newLang); |
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Locale.setDefault(newLocale); |
// Get default locale |
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Locale locale = Locale.getDefault(); |
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/** |
setActiveLang(locale.getLanguage()); |
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* Setting default locale for Swing JComponents to work around bug |
} |
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* http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4884480 |
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*/ |
private List<ActionListener> actionListeners = new ArrayList<ActionListener>(); |
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JComponent.setDefaultLocale(newLocale); |
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@Override |
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Translation.activeLang = newLang; |
/* |
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* @comment To make a copy of a translation see methods toOneLine() and |
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fireChangeEvents(); |
* fromOneLine() |
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*/ |
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log.info("skrueger.i8n.Translation switched ActiveLang to "+newLang); |
public Translation clone() { |
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} |
return (Translation) super.clone(); |
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} |
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/** |
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* Initializes a new {@link Translation} with a default translation. |
/** |
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* Other translations may be added later. |
* Get the two-letter language sting that is active |
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* |
*/ |
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* @param defaultTranslation |
public static String getActiveLang() { |
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* |
return activeLang; |
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* @deprecated SK: The concept of the default translation doesn't seem so nice to me anymore.. |
} |
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* I would prefer the default translation to be set for all valid languages. |
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* |
/** |
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* @see public Translation(List<String> languages, String defaultTranslation) { |
* Set up the {@link Translation}-system to use language. If a change is |
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* |
* performed, events are fired to listeners. Nothing is done if the new |
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*/ |
* language equals the old language. The system's default locale is changed. |
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public Translation(String defaultTranslation) { |
* |
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put(DEFAULT_KEY, defaultTranslation); |
* @param newLang |
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} |
* The ISO Code of the new active language |
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*/ |
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/** |
public static void setActiveLang(String newLang) { |
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* Initializes a new {@link Translation}, an uses the given String to |
setActiveLang(newLang, true); |
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* initialize the {@link Translation} for all languages codes passed. |
} |
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* |
|
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* The translations can be changed later |
/** |
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*/ |
* Set up the {@link Translation}-system to use language. If a change is |
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public Translation(List<String> languages, String defaultTranslation) { |
* performed, events are fired to listeners. Nothing is done if the new |
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// put(DEFAULT_KEY, defaultTranslation); |
* language equals the old language. |
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if (languages == null) { |
* |
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put(DEFAULT_KEY, defaultTranslation); |
* @param newLang |
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} |
* The ISO Code of the new active language |
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else for (String code : languages){ |
* |
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put(code, defaultTranslation); |
* @param setDefaultLocale |
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} |
* Shall the system's default locale be changed? |
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} |
*/ |
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public static void setActiveLang(String newLang, boolean setDefaultLocale) { |
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/** |
if (getActiveLang().equals(newLang)) { |
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* Sometimes Translations are optional, like for keywords. |
return; |
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*/ |
} |
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public Translation() { |
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super(); |
if (!I8NUtil.isValidISOLangCode(newLang)) { |
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} |
throw new IllegalArgumentException("'" + newLang |
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+ "' is not a valid ISO language code."); |
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/** |
} |
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* Fills the {@link Translation} with the values coded into the String |
|
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* Format of {@link String} is: "de{Baum}en{tree}" |
Locale newLocale = new Locale(newLang); |
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* <p> |
if (setDefaultLocale) |
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* <ul> |
Locale.setDefault(newLocale); |
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* <li> If <code>oneLineCoded</code> is empty or null, NO TRANSLATION is set. |
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* <li> If format can't be recognized, the {@link String} is interpreted as the translation in the <code>{@value #DEFAULT_KEY}</code> language |
/** |
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* |
* Setting default locale for Swing JComponents to work around bug |
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* @author Stefan Alfons Krüger |
* http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4884480 |
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*/ |
*/ |
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public void fromOneLine( final String oneLineCoded) { |
JComponent.setDefaultLocale(newLocale); |
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clear(); |
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if ( (oneLineCoded == null) || (oneLineCoded.equals("")) ) { |
Translation.activeLang = newLang; |
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put(DEFAULT_KEY,NO_TRANSLATION); |
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return; |
fireLocaleChangeEvents(); |
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} |
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log.info("skrueger.i8n.Translation switched ActiveLang to " + newLang); |
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if (oneLineCoded.indexOf("}") == -1) { |
} |
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// log.warn("The String '"+oneLineCoded+"' is not in oneLine coded => put(DEFAULT_KEY,oneLineCoded);"); |
|
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put(DEFAULT_KEY,oneLineCoded); |
/** |
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} |
* Initializes a new {@link Translation} with a default translation if a |
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* simple text is passed. If a "oneLine" text is parsed, it is interpreted. |
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String eatUp = oneLineCoded; |
* Other translations may be added later - this is a HashMap<br/> |
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while ( eatUp.indexOf("}") != -1) { |
* |
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String substring = eatUp.substring(0, eatUp.indexOf("}")); |
* @param defaultTranslation |
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|
* |
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// log.debug("substring = "+substring); |
* @see public Translation(List<String> languages, String |
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String key = substring.substring(0, substring.indexOf("{") ); |
* defaultTranslation) { |
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String value = substring.substring(substring.indexOf("{")+1, substring.length() ); |
* |
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// log.debug("key="+key); |
*/ |
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// log.debug("value="+value); |
public Translation(String defaultTranslation) { |
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put(key,value); |
|
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eatUp = eatUp.substring(eatUp.indexOf("}")+1); |
fromOneLine(defaultTranslation); |
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} |
|
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} |
} |
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|
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/** |
/** |
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* Exports the Translations to a String of the Format: "de{Baum}en{tree}" |
* Initializes a new {@link Translation}, an uses the given String to |
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* @author Stefan Alfons Krüger |
* initialize the {@link Translation} for all languages codes passed. |
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*/ |
* |
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public String toOneLine(){ |
* The translations can be changed later |
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StringBuffer oneLine = new StringBuffer(); |
*/ |
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for (String key: keySet()) { |
public Translation(List<String> languages, String defaultTranslation) { |
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oneLine.append(key+"{"+ get(key) + "}"); |
// put(DEFAULT_KEY, defaultTranslation); |
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} |
if (languages == null) { |
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return oneLine.toString(); |
put(DEFAULT_KEY, defaultTranslation); |
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} |
} else |
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for (String code : languages) { |
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/** |
if (code.equals(getActiveLang())) { |
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* Returns the right translation by using the {@link #activeLang} field. |
put(code, defaultTranslation); |
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* If no translation is set, an ugly String {@link #NO_TRANSLATION} will re returned. This might be changed for the final release. |
} |
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* If the correct language was not found, any entry in the {@link Translation} {@link HashMap} will be returned, that contains |
} |
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* more than an empty string. |
} |
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*/ |
|
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@Override |
/** |
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public String toString(){ |
* Sometimes Translations are optional, like for keywords. |
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if ( get(activeLang) != null ) { |
*/ |
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return get(activeLang); |
public Translation() { |
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} |
} |
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//**************************************************************************** |
|
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// MS: The ISDSS needs the concept of the default lang!! So I took the |
/** |
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// following in again!! |
* Fills the {@link Translation} with the values coded into the String |
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//**************************************************************************** |
* Format of {@link String} is: "de{Baum}en{tree}" |
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// else return ""; |
* <p> |
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// //**************************************************************************** |
* <ul> |
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// // The following is commented out.. the concept of the default lang seems to be bad.... |
* <li>If <code>oneLineCoded</code> is empty or null, NO TRANSLATION is set. |
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// //**************************************************************************** |
* <li>If format can't be recognized, the {@link String} is interpreted as |
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// MS: |
* the translation in the <code>{@value #DEFAULT_KEY}</code> language |
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else { |
* |
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if ( get(DEFAULT_KEY) != null ) { |
* @author Stefan Alfons Krüger |
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// log.debug("default lng returned, cuz the translation to "+activeLang+" was not found. Schmeiss raus martin, wenn du das mit der default trans geklärt hast."); |
*/ |
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return get(DEFAULT_KEY); |
public void fromOneLine(final String oneLineCoded) { |
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} |
clear(); |
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if ((oneLineCoded == null) || (oneLineCoded.equals(""))) { |
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// log.debug("return first best <> '' "); |
put(DEFAULT_KEY, ""); |
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if (size() > 0) |
return; |
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for ( String s : values() ) { |
} |
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if ( (s != null) && (s.trim().length()>0) ) |
|
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return s; |
if (oneLineCoded.indexOf("}") == -1) { |
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} |
// log.warn("The String '"+oneLineCoded+"' is not in oneLine coded => put(DEFAULT_KEY,oneLineCoded);"); |
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} |
put(DEFAULT_KEY, oneLineCoded); |
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log.warn("No translation found!"); |
} |
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return NO_TRANSLATION; |
|
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} |
String eatUp = oneLineCoded; |
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while (eatUp.indexOf("}") != -1) { |
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/** |
String substring = eatUp.substring(0, eatUp.indexOf("}")); |
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* Copy this {@link Translation} to another {@link Translation} |
|
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* e.g. for editing |
// log.debug("substring = "+substring); |
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* |
String key = substring.substring(0, substring.indexOf("{")); |
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* @return the destination {@link Translation} |
String value = substring.substring(substring.indexOf("{") + 1, |
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*/ |
substring.length()); |
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public Translation copy(Translation backup) { |
// log.debug("key="+key); |
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if (backup == null) throw new IllegalArgumentException("Target translation may not be null."); |
// log.debug("value="+value); |
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for (String s : keySet() ) { |
put(key, value); |
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backup.put(s, get(s) ); |
eatUp = eatUp.substring(eatUp.indexOf("}") + 1); |
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} |
} |
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return backup; |
} |
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} |
|
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|
/** |
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* Exports the Translations to a String of the Format: "de{Baum}en{tree}" |
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/** |
* |
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* {@link PropertyChangeListener} can be registered to be informed when the |
* @author Stefan Alfons Krüger |
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* {@link Locale} changed. |
*/ |
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* |
public String toOneLine() { |
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* @param propertyChangeListener |
return I8NUtil.toOneLine(this); |
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*/ |
} |
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public static void addLocaleChangeListener(PropertyChangeListener propertyChangeListener) { |
|
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listeners.add(propertyChangeListener); |
/** |
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} |
* Returns the right translation by using the {@link #activeLang} field. If |
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* no translation is set, an ugly String {@link #NO_TRANSLATION} will re |
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/** |
* returned. This might be changed for the final release. If the correct |
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* Informs all registered {@link PropertyChangeListener}s about a change of the |
* language was not found, any entry in the {@link Translation} |
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* the {@link Locale}. |
* {@link HashMap} will be returned, that contains more than an empty |
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*/ |
* string. |
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public static void fireChangeEvents() { |
*/ |
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PropertyChangeEvent pce = new PropertyChangeEvent(new Translation(new ArrayList<String>(), "fakeSource"), LOCALECHANGE_PROPERTY, |
@Override |
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null, getActiveLang()); |
public String toString() { |
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for (PropertyChangeListener pcl : listeners) { |
if (get(activeLang) != null) { |
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if (pcl != null) |
return get(activeLang); |
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pcl.propertyChange(pce); |
} |
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} |
// **************************************************************************** |
243 |
} |
// MS: The ISDSS needs the concept of the default lang!! So I took the |
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|
// following in again!! |
245 |
|
// **************************************************************************** |
246 |
} |
// else return ""; |
247 |
|
// //**************************************************************************** |
248 |
|
// // The following is commented out.. the concept of the default lang |
249 |
|
// seems to be bad.... |
250 |
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// //**************************************************************************** |
251 |
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// MS: |
252 |
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else { |
253 |
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if (get(DEFAULT_KEY) != null) { |
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// log.debug("default lang returned, cuz the translation to "+activeLang+" was not found. Schmeiss raus martin, wenn du das mit der default trans geklärt hast."); |
255 |
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return get(DEFAULT_KEY); |
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} |
257 |
|
|
258 |
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// log.debug("return first best <> '' "); |
259 |
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if (size() > 0) |
260 |
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for (String s : values()) { |
261 |
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if ((s != null) && (s.trim().length() > 0)) |
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return s; |
263 |
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} |
264 |
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} |
265 |
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// log.warn("No translation found!"); |
266 |
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return NO_TRANSLATION; |
267 |
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} |
268 |
|
|
269 |
|
/** |
270 |
|
* Copy this {@link Translation} to another {@link Translation} e.g. for |
271 |
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* editing |
272 |
|
* |
273 |
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* @return the destination {@link Translation} |
274 |
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*/ |
275 |
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public Translation copy(Translation backup) { |
276 |
|
if (backup == null) |
277 |
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throw new IllegalArgumentException( |
278 |
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"Target translation may not be null."); |
279 |
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for (String s : keySet()) { |
280 |
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backup.put(s, get(s)); |
281 |
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} |
282 |
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return backup; |
283 |
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} |
284 |
|
|
285 |
|
/** |
286 |
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* {@link PropertyChangeListener} can be registered to be informed when the |
287 |
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* {@link Locale} changed. |
288 |
|
* |
289 |
|
* @param propertyChangeListener |
290 |
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*/ |
291 |
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public static void addLocaleChangeListener( |
292 |
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PropertyChangeListener propertyChangeListener) { |
293 |
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listeners.add(propertyChangeListener); |
294 |
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} |
295 |
|
|
296 |
|
/** |
297 |
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* Informs all registered {@link PropertyChangeListener}s about a change of |
298 |
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* the the {@link Locale}. |
299 |
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*/ |
300 |
|
public static void fireLocaleChangeEvents() { |
301 |
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PropertyChangeEvent pce = new PropertyChangeEvent(new Translation( |
302 |
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new ArrayList<String>(), "fakeSource"), LOCALECHANGE_PROPERTY, |
303 |
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null, getActiveLang()); |
304 |
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for (PropertyChangeListener pcl : listeners) { |
305 |
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if (pcl != null) |
306 |
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pcl.propertyChange(pce); |
307 |
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} |
308 |
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} |
309 |
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|
310 |
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public void addTranslationChangeListener(ActionListener actionListener) { |
311 |
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actionListeners.add(actionListener); |
312 |
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} |
313 |
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|
314 |
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public boolean removeTranslationChangeListener(ActionListener actionListener) { |
315 |
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return actionListeners.remove(actionListener); |
316 |
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} |
317 |
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|
318 |
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public void fireTranslationChangedEvents(String lang) { |
319 |
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ActionEvent ae = new ActionEvent(this, new Random().nextInt(), lang); |
320 |
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|
321 |
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for (ActionListener al : actionListeners) { |
322 |
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al.actionPerformed( ae); |
323 |
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} |
324 |
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} |
325 |
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|
326 |
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@Override |
327 |
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public String put(String lang, String value) { |
328 |
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String result = super.put(lang, value); |
329 |
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fireTranslationChangedEvents(lang); |
330 |
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return result; |
331 |
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} |
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333 |
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|
334 |
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} |