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package skrueger.i8n; |
/******************************************************************************* |
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import java.util.HashMap; |
* Copyright (c) 2009 Martin O. J. Schmitz. |
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import java.util.List; |
* |
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import java.util.Locale; |
* This file is part of the SCHMITZM library - a collection of utility |
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|
* classes based on Java 1.6, focusing (not only) on Java Swing |
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import org.apache.log4j.Logger; |
* and the Geotools library. |
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|
* |
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/** |
* The SCHMITZM project is hosted at: |
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* Represents a {@link HashMap} of translations. |
* http://wald.intevation.org/projects/schmitzm/ |
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* toString() returns the appropriate translation |
* |
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* |
* This program is free software; you can redistribute it and/or |
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* @author @author <a href="mailto:[email protected]">Stefan Alfons Krüger</a> |
* 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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* of the License, or (at your option) any later version. |
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public class Translation extends HashMap<String, String> { |
* |
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public static final String NO_TRANSLATION = "NO TRANSLATION"; |
* This program is distributed in the hope that it will be useful, |
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public static final String DEFAULT_KEY = "default"; |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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static final Logger log = Logger.getLogger( Translation.class ); |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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static String activeLang = "fr"; |
* GNU General Public License for more details. |
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|
* |
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static { |
* You should have received a copy of the GNU Lesser General Public License (license.txt) |
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* along with this program; if not, write to the Free Software |
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//TODO default aus Locale auslesen und mit möglichen vergleichen... mmm.. vor laden von atlasml immer DEFAULT_KEY, also hier nicht |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* or try this link: http://www.gnu.org/licenses/lgpl.html |
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// Get default locale |
* |
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Locale locale = Locale.getDefault(); |
* Contributors: |
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setActiveLang(locale.getLanguage()); |
* Martin O. J. Schmitz - initial API and implementation |
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} |
* Stefan A. Krüger - additional utility classes |
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|
******************************************************************************/ |
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@Override |
package skrueger.i8n; |
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public Translation clone() { |
|
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return (Translation) super.clone(); |
import java.awt.event.ActionEvent; |
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} |
import java.awt.event.ActionListener; |
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|
import java.beans.PropertyChangeEvent; |
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/** |
import java.beans.PropertyChangeListener; |
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* Get the two-letter language sting that is active |
import java.util.ArrayList; |
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*/ |
import java.util.HashMap; |
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public static String getActiveLang() { |
import java.util.List; |
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return activeLang; |
import java.util.Locale; |
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} |
import java.util.Random; |
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|
|
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/** |
import javax.swing.JComponent; |
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* Set up the {@link Translation}-system to use language. |
|
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* @param activeLang |
import org.apache.log4j.Logger; |
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*/ |
import org.opengis.util.InternationalString; |
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public static void setActiveLang(String activeLang) { |
|
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if (!I8NUtil.isValidISOLangCode(activeLang)) { |
import skrueger.geotools.Copyable; |
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throw new IllegalArgumentException("'"+activeLang+"' is not a valid ISO language code."); |
|
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} |
/** |
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|
* Represents a {@link HashMap} of translations. toString() returns the |
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Locale.setDefault(new Locale(activeLang)); |
* appropriate translation |
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Translation.activeLang = activeLang; |
* |
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log.info("Translation-system switched to "+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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* Initilises a new {@link Translation} with a default translation. |
public class Translation extends HashMap<String, String> implements Copyable<Translation>{ |
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* Other translations may be added later. |
public static final String LOCALECHANGE_PROPERTY = "localechange"; |
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* |
public static final String NO_TRANSLATION = "NO TRANSLATION"; |
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* @param defaultTranslation |
public static final String DEFAULT_KEY = "default"; |
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* |
static final Logger log = Logger.getLogger(Translation.class); |
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* @deprecated SK: The concept of the default translation doesn't seem so nice to me anymore.. |
static String activeLang = Locale.getDefault().getLanguage(); |
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* I would prefer the default translation to be set for all valid languages. |
|
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* |
static protected List<PropertyChangeListener> listeners = new ArrayList<PropertyChangeListener>(); |
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* @see public Translation(List<String> languages, String defaultTranslation) { |
|
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* |
static { |
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*/ |
|
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public Translation(String defaultTranslation) { |
// TODO default aus Locale auslesen und mit möglichen vergleichen... |
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put(DEFAULT_KEY, defaultTranslation); |
// mmm.. vor laden von atlasml immer DEFAULT_KEY, also hier nicht |
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} |
|
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// Get default locale |
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/** |
Locale locale = Locale.getDefault(); |
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* Initilises a new {@link Translation}, an uses the given String to |
setActiveLang(locale.getLanguage()); |
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* initialise the {@link Translation} for all languages codes passed. |
} |
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* |
|
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* The translations can be cahnged later |
private List<ActionListener> actionListeners = new ArrayList<ActionListener>(); |
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*/ |
|
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public Translation(List<String> languages, String defaultTranslation) { |
@Override |
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// put(DEFAULT_KEY, defaultTranslation); |
/* |
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if (languages == null) { |
* @comment To make a copy of a translation see methods toOneLine() and |
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put(DEFAULT_KEY, defaultTranslation); |
* fromOneLine() |
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} |
*/ |
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else for (String code : languages){ |
public Translation clone() { |
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put(code, defaultTranslation); |
throw new RuntimeException("use copy()"); |
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} |
// return (Translation) super.clone(); |
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} |
} |
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|
|
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/** |
/** |
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* Sometimes Translations are optional, like for keywords. |
* Get the two-letter language sting that is active |
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*/ |
*/ |
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public Translation() { |
public static String getActiveLang() { |
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super(); |
return activeLang; |
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} |
} |
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|
|
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/** |
/** |
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* Fills the {@link Translation} with the values coded into the String |
* Set up the {@link Translation}-system to use language. If a change is |
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* Format of {@link String} is: "de{Baum}en{tree}" |
* performed, events are fired to listeners. Nothing is done if the new |
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* <p> |
* language equals the old language. The system's default locale is changed. |
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* <ul> |
* |
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* <li> If <code>oneLineCoded</code> is empty or null, NO TRANSLATION is set. |
* @param newLang |
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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 |
* The ISO Code of the new active language |
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* |
*/ |
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* @author Stefan Alfons Krüger |
public static void setActiveLang(String newLang) { |
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*/ |
setActiveLang(newLang, true); |
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public void fromOneLine( final String oneLineCoded) { |
} |
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clear(); |
|
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if ( (oneLineCoded == null) || (oneLineCoded.equals("")) ) { |
/** |
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put(DEFAULT_KEY,NO_TRANSLATION); |
* Set up the {@link Translation}-system to use language. If a change is |
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return; |
* performed, events are fired to listeners. Nothing is done if the new |
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} |
* language equals the old language. |
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|
* |
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if (oneLineCoded.indexOf("}") == -1) { |
* @param newLang |
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// log.warn("The String '"+oneLineCoded+"' is not in oneLine coded => put(DEFAULT_KEY,oneLineCoded);"); |
* The ISO Code of the new active language |
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put(DEFAULT_KEY,oneLineCoded); |
* |
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} |
* @param setDefaultLocale |
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|
* Shall the system's default locale be changed? |
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String eatUp = oneLineCoded; |
*/ |
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while ( eatUp.indexOf("}") != -1) { |
public static void setActiveLang(String newLang, boolean setDefaultLocale) { |
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String substring = eatUp.substring(0, eatUp.indexOf("}")); |
if (getActiveLang().equals(newLang)) { |
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return; |
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// log.debug("substring = "+substring); |
} |
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String key = substring.substring(0, substring.indexOf("{") ); |
|
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String value = substring.substring(substring.indexOf("{")+1, substring.length() ); |
if (!I8NUtil.isValidISOLangCode(newLang)) { |
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// log.debug("key="+key); |
throw new IllegalArgumentException("'" + newLang |
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// log.debug("value="+value); |
+ "' is not a valid ISO language code."); |
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put(key,value); |
} |
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eatUp = eatUp.substring(eatUp.indexOf("}")+1); |
|
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} |
Locale newLocale = new Locale(newLang); |
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} |
if (setDefaultLocale) |
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Locale.setDefault(newLocale); |
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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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* @author Stefan Alfons Krüger |
* 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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public String toOneLine(){ |
*/ |
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StringBuffer oneLine = new StringBuffer(); |
JComponent.setDefaultLocale(newLocale); |
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for (String key: keySet()) { |
|
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oneLine.append(key+"{"+ get(key) + "}"); |
Translation.activeLang = newLang; |
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} |
|
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return oneLine.toString(); |
fireLocaleChangeEvents(); |
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} |
|
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log.info("skrueger.i8n.Translation switched ActiveLang to " + newLang); |
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/** |
} |
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* Returns the right translation by using the {@link #activeLang} field. |
|
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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 |
* Initializes a new {@link Translation} with a default translation if a |
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* more than an empty string. |
* simple text is passed. If a "oneLine" text is parsed, it is interpreted. |
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*/ |
* Other translations may be added later - this is a HashMap<br/> |
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@Override |
* |
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public String toString(){ |
* @param defaultTranslation |
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if ( get(activeLang) != null ) { |
* |
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return get(activeLang); |
* @see public Translation(List<String> languages, String |
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} |
* defaultTranslation) { |
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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!! |
public Translation(String defaultTranslation) { |
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//**************************************************************************** |
|
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// else return ""; |
fromOneLine(defaultTranslation); |
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// //**************************************************************************** |
|
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// // The following is commented out.. the concept of the default lang seems to be bad.... |
} |
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// //**************************************************************************** |
|
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// MS: |
/** |
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else { |
* Initializes a new {@link Translation}, an uses the given String to |
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if ( get(DEFAULT_KEY) != null ) { |
* initialize the {@link Translation} for all languages codes passed. |
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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); |
* The translations can be changed later |
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} |
*/ |
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|
public Translation(List<String> languages, String defaultTranslation) { |
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// log.debug("return first best <> '' "); |
// put(DEFAULT_KEY, defaultTranslation); |
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if (size() > 0) |
if (languages == null) { |
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for ( String s : values() ) { |
put(DEFAULT_KEY, defaultTranslation); |
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if ( (s != null) && (s.trim().length()>0) ) |
} else |
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return s; |
for (String code : languages) { |
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} |
if (code.equals(getActiveLang())) { |
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} |
put(code, defaultTranslation); |
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log.warn("No translation found!"); |
} |
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return NO_TRANSLATION; |
} |
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} |
} |
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|
|
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/** |
/** |
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* Copy this {@link Translation} to another {@link Translation} |
* Sometimes Translations are optional, like for keywords. |
182 |
* e.g. for editing |
*/ |
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* |
public Translation() { |
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* @return the destination {@link Translation} |
} |
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*/ |
|
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public Translation copy(Translation backup) { |
/** |
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if (backup == null) throw new IllegalArgumentException("Target translation may not be null."); |
* Fills the {@link Translation} with the values coded into the String |
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for (String s : keySet() ) { |
* Format of {@link String} is: "de{Baum}en{tree}" |
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backup.put(s, get(s) ); |
* <p> |
190 |
} |
* <ul> |
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return backup; |
* <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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* the translation in the <code>{@value #DEFAULT_KEY}</code> language |
194 |
} |
* |
195 |
|
* @author Stefan Alfons Krüger |
196 |
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*/ |
197 |
|
public void fromOneLine(final String oneLineCoded) { |
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|
|
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clear(); |
200 |
|
|
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|
try { |
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|
|
203 |
|
if ((oneLineCoded == null) || (oneLineCoded.equals(""))) { |
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put(DEFAULT_KEY, ""); |
205 |
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return; |
206 |
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} |
207 |
|
|
208 |
|
if (oneLineCoded.indexOf("}") == -1) { |
209 |
|
// log.warn("The String '"+oneLineCoded+"' is not in oneLine coded => put(DEFAULT_KEY,oneLineCoded);"); |
210 |
|
put(DEFAULT_KEY, oneLineCoded); |
211 |
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} |
212 |
|
|
213 |
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String eatUp = oneLineCoded; |
214 |
|
while (eatUp.indexOf("}") != -1) { |
215 |
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String substring = eatUp.substring(0, eatUp.indexOf("}")); |
216 |
|
|
217 |
|
// log.debug("substring = "+substring); |
218 |
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String key = substring.substring(0, substring.indexOf("{")); |
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|
String value = substring.substring(substring.indexOf("{") + 1, |
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substring.length()); |
221 |
|
// log.debug("key="+key); |
222 |
|
// log.debug("value="+value); |
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put(key, value); |
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eatUp = eatUp.substring(eatUp.indexOf("}") + 1); |
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} |
226 |
|
} catch (Exception e) { |
227 |
|
log.warn("Error while reading the oneLineCode '"+oneLineCoded+"'", e); |
228 |
|
log.warn("Translation will be empty!"); |
229 |
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} |
230 |
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} |
231 |
|
|
232 |
|
/** |
233 |
|
* Exports the Translations to a String of the Format: "de{Baum}en{tree}" |
234 |
|
* |
235 |
|
* @author Stefan Alfons Krüger |
236 |
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*/ |
237 |
|
public String toOneLine() { |
238 |
|
return I8NUtil.toOneLine(this); |
239 |
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} |
240 |
|
|
241 |
|
/** |
242 |
|
* Returns the right translation by using the {@link #activeLang} field. If |
243 |
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* no translation is set, an ugly String {@link #NO_TRANSLATION} will re |
244 |
|
* returned. This might be changed for the final release. If the correct |
245 |
|
* language was not found, any entry in the {@link Translation} |
246 |
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* {@link HashMap} will be returned, that contains more than an empty |
247 |
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* string. |
248 |
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*/ |
249 |
|
@Override |
250 |
|
public String toString() { |
251 |
|
if (get(activeLang) != null) { |
252 |
|
return get(activeLang); |
253 |
|
} |
254 |
|
// **************************************************************************** |
255 |
|
// MS: The ISDSS needs the concept of the default lang!! So I took the |
256 |
|
// following in again!! |
257 |
|
// **************************************************************************** |
258 |
|
// else return ""; |
259 |
|
// //**************************************************************************** |
260 |
|
// // The following is commented out.. the concept of the default lang |
261 |
|
// seems to be bad.... |
262 |
|
// //**************************************************************************** |
263 |
|
// MS: |
264 |
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else { |
265 |
|
if (get(DEFAULT_KEY) != null) { |
266 |
|
return get(DEFAULT_KEY); |
267 |
|
} |
268 |
|
|
269 |
|
// log.debug("return first best <> '' "); |
270 |
|
if (size() > 0) |
271 |
|
for (String s : values()) { |
272 |
|
if ((s != null) && (s.trim().length() > 0)) |
273 |
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return s; |
274 |
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} |
275 |
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} |
276 |
|
// log.warn("No translation found!"); |
277 |
|
return NO_TRANSLATION; |
278 |
|
} |
279 |
|
|
280 |
|
|
281 |
|
/** |
282 |
|
* {@link PropertyChangeListener} can be registered to be informed when the |
283 |
|
* {@link Locale} changed. |
284 |
|
* |
285 |
|
* @param propertyChangeListener |
286 |
|
*/ |
287 |
|
public static void addLocaleChangeListener( |
288 |
|
PropertyChangeListener propertyChangeListener) { |
289 |
|
listeners.add(propertyChangeListener); |
290 |
|
} |
291 |
|
|
292 |
|
/** |
293 |
|
* Informs all registered {@link PropertyChangeListener}s about a change of |
294 |
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* the the {@link Locale}. |
295 |
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*/ |
296 |
|
public static void fireLocaleChangeEvents() { |
297 |
|
PropertyChangeEvent pce = new PropertyChangeEvent(new Translation( |
298 |
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new ArrayList<String>(), "fakeSource"), LOCALECHANGE_PROPERTY, |
299 |
|
null, getActiveLang()); |
300 |
|
for (PropertyChangeListener pcl : listeners) { |
301 |
|
if (pcl != null) |
302 |
|
pcl.propertyChange(pce); |
303 |
|
} |
304 |
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} |
305 |
|
|
306 |
|
public void addTranslationChangeListener(ActionListener actionListener) { |
307 |
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actionListeners.add(actionListener); |
308 |
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} |
309 |
|
|
310 |
|
public boolean removeTranslationChangeListener(ActionListener actionListener) { |
311 |
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return actionListeners.remove(actionListener); |
312 |
|
} |
313 |
|
|
314 |
|
public void fireTranslationChangedEvents(String lang) { |
315 |
|
ActionEvent ae = new ActionEvent(this, new Random().nextInt(), lang); |
316 |
|
|
317 |
|
for (ActionListener al : actionListeners) { |
318 |
|
al.actionPerformed( ae); |
319 |
|
} |
320 |
|
} |
321 |
|
|
322 |
|
@Override |
323 |
|
public String put(String lang, String value) { |
324 |
|
String result = super.put(lang, value); |
325 |
|
fireTranslationChangedEvents(lang); |
326 |
|
return result; |
327 |
|
} |
328 |
|
|
329 |
|
public void fromOneLine(InternationalString iString) { |
330 |
|
if (iString != null) |
331 |
|
fromOneLine(iString.toString()); |
332 |
|
else |
333 |
|
fromOneLine((String)null); |
334 |
|
} |
335 |
|
|
336 |
|
/** |
337 |
|
* Copy this {@link Translation} to another {@link Translation} e.g. for |
338 |
|
* editing |
339 |
|
* |
340 |
|
* @return the destination {@link Translation} |
341 |
|
*/ |
342 |
|
@Override |
343 |
|
public Translation copyTo(Translation translation2) { |
344 |
|
|
345 |
|
if (translation2 == null) |
346 |
|
// throw new IllegalArgumentException( |
347 |
|
// "Target translation may not be null."); |
348 |
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return copy(); |
349 |
|
for (String s : keySet()) { |
350 |
|
translation2.put(s, get(s)); |
351 |
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} |
352 |
|
|
353 |
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return translation2; |
354 |
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} |
355 |
|
|
356 |
|
|
357 |
|
@Override |
358 |
|
public Translation copy() { |
359 |
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return copyTo(new Translation()); |
360 |
|
} |
361 |
|
|
362 |
|
/** |
363 |
|
* Checks if the {@link String}s stored in the {@link Translation} are all valid. |
364 |
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* @return <code>true</code> if all good |
365 |
|
*/ |
366 |
|
public static boolean checkValid(Translation translationToCheck) { |
367 |
|
|
368 |
|
for (String l : translationToCheck.values()) { |
369 |
|
|
370 |
|
if (l.contains("{") || l.contains("}")) { |
371 |
|
|
372 |
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return false; |
373 |
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} |
374 |
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} |
375 |
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return true; |
376 |
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} |
377 |
|
|
378 |
|
|
379 |
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} |