skrueger/i8n/Translation.java

/*******************************************************************************
 * Copyright (c) 2009 Martin O. J. Schmitz.
 * 
 * This file is part of the SCHMITZM library - a collection of utility 
 * classes based on Java 1.6, focusing (not only) on Java Swing 
 * and the Geotools library.
 * 
 * The SCHMITZM project is hosted at:
 * http://wald.intevation.org/projects/schmitzm/
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License (license.txt)
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 * or try this link: http://www.gnu.org/licenses/lgpl.html
 * 
 * Contributors:
 *     Martin O. J. Schmitz - initial API and implementation
 *     Stefan A. Krüger - additional utility classes
 ******************************************************************************/
package skrueger.i8n;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Random;
import java.util.WeakHashMap;

import javax.swing.JComponent;

import org.apache.log4j.Logger;
import org.geotools.util.WeakHashSet;
import org.opengis.util.InternationalString;

import skrueger.geotools.Copyable;

/**
 * Represents a {@link HashMap} of translations. toString() returns the
 * appropriate translation
 * 
 * @author @author <a href="mailto:[email protected]">Stefan Alfons
 *         Kr&uuml;ger</a>
 */

public class Translation extends HashMap<String, String> implements
                Copyable<Translation> {
        public static final String LOCALECHANGE_PROPERTY = "localechange";
        public static final String NO_TRANSLATION = "NO TRANSLATION";
        public static final String DEFAULT_KEY = "default";
        static final Logger LOGGER = Logger.getLogger(Translation.class);
        static String activeLang = Locale.getDefault().getLanguage();

        static protected WeakHashSet<PropertyChangeListener> listeners = new WeakHashSet<PropertyChangeListener>(
                        PropertyChangeListener.class);

        static {

                // TODO default aus Locale auslesen und mit möglichen vergleichen...
                // mmm.. vor laden von atlasml immer DEFAULT_KEY, also hier nicht

                // Get default locale
                Locale locale = Locale.getDefault();
                setActiveLang(locale.getLanguage());
        }

        private WeakHashSet<ActionListener> actionListeners = new WeakHashSet<ActionListener>(
                        ActionListener.class);

        @Override
        /*
         * @comment To make a copy of a translation see methods toOneLine() and
         * fromOneLine()
         */
        public Translation clone() {
                throw new RuntimeException("use copy()");
                // return (Translation) super.clone();
        }

        /**
         * Get the two-letter language sting that is active
         */
        public static String getActiveLang() {
                return activeLang;
        }

        /**
         * 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. The system's default locale is changed.
         * 
         * @param newLang
         *            The ISO Code of the new active language
         */
        public static void setActiveLang(String newLang) {
                setActiveLang(newLang, true);
        }

        /**
         * 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.
         * 
         * @param newLang
         *            The ISO Code of the new active language
         * 
         * @param setDefaultLocale
         *            Shall the system's default locale be changed?
         */
        public static void setActiveLang(String newLang, boolean setDefaultLocale) {
                if (getActiveLang().equals(newLang)) {
                        return;
                }

                if (!I8NUtil.isValidISOLangCode(newLang)) {
                        throw new IllegalArgumentException("'" + newLang
                                        + "' is not a valid ISO language code.");
                }

                Locale newLocale = new Locale(newLang);
                if (setDefaultLocale)
                        Locale.setDefault(newLocale);

                /**
                 * Setting default locale for Swing JComponents to work around bug
                 * http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4884480
                 */
                JComponent.setDefaultLocale(newLocale);

                Translation.activeLang = newLang;

                fireLocaleChangeEvents();

                LOGGER.info("skrueger.i8n.Translation switched ActiveLang to "
                                + newLang);
        }

        /**
         * Initializes a new {@link Translation} with a default translation if a
         * simple text is passed. If a "oneLine" text is parsed, it is interpreted.
         * Other translations may be added later - this is a HashMap<br/>
         * 
         * @param defaultTranslation
         * 
         * @see public Translation(List<String> languages, String
         *      defaultTranslation) {
         * 
         */
        public Translation(String defaultTranslation) {

                fromOneLine(defaultTranslation);

        }

        /**
         * Initializes a new {@link Translation}, an uses the given String to
         * initialize the {@link Translation} for all languages codes passed.
         * 
         * The translations can be changed later
         */
        public Translation(List<String> languages, String defaultTranslation) {
                // put(DEFAULT_KEY, defaultTranslation);
                if (languages == null) {
                        put(DEFAULT_KEY, defaultTranslation);
                } else
                        for (String code : languages) {
                                if (code.equals(getActiveLang())) {
                                        put(code, defaultTranslation);
                                }
                        }
        }

        /**
         * Sometimes Translations are optional, like for keywords.
         */
        public Translation() {
        }

        /**
         * Fills the {@link Translation} with the values coded into the String
         * Format of {@link String} is: "de{Baum}en{tree}"
         * <p>
         * <ul>
         * <li>If <code>oneLineCoded</code> is empty or null, NO TRANSLATION is set.
         * <li>If format can't be recognized, the {@link String} is interpreted as
         * the translation in the <code>{@value #DEFAULT_KEY}</code> language
         * 
         * @author Stefan Alfons Krüger
         */
        public void fromOneLine(final String oneLineCoded) {

                clear();

                try {

                        if ((oneLineCoded == null) || (oneLineCoded.equals(""))) {
                                put(DEFAULT_KEY, "");
                                return;
                        }

                        if (oneLineCoded.indexOf("}") == -1) {
                                // log.warn("The String '"+oneLineCoded+"' is not in oneLine coded => put(DEFAULT_KEY,oneLineCoded);");
                                put(DEFAULT_KEY, oneLineCoded);
                        }

                        String eatUp = oneLineCoded;
                        while (eatUp.indexOf("}") != -1) {
                                String substring = eatUp.substring(0, eatUp.indexOf("}"));

                                // log.debug("substring = "+substring);
                                String key = substring.substring(0, substring.indexOf("{"));
                                String value = substring.substring(substring.indexOf("{") + 1,
                                                substring.length());
                                // log.debug("key="+key);
                                // log.debug("value="+value);
                                put(key, value);
                                eatUp = eatUp.substring(eatUp.indexOf("}") + 1);
                        }
                } catch (Exception e) {
                        LOGGER.warn("Error while reading the oneLineCode '" + oneLineCoded
                                        + "'", e);
                        LOGGER.warn("Translation will be empty!");
                }
        }

        /**
         * Exports the Translations to a String of the Format: "de{Baum}en{tree}"
         * 
         * @author Stefan Alfons Krüger
         */
        public String toOneLine() {
                return I8NUtil.toOneLine(this);
        }

        /**
         * Returns the right translation by using the {@link #activeLang} field. If
         * no translation is set, an ugly String {@link #NO_TRANSLATION} will re
         * returned. This might be changed for the final release. If the correct
         * language was not found, any entry in the {@link Translation}
         * {@link HashMap} will be returned, that contains more than an empty
         * string.
         */
        @Override
        public String toString() {
                if (get(activeLang) != null) {
                        return get(activeLang);
                }
                // ****************************************************************************
                // MS: The ISDSS needs the concept of the default lang!! So I took the
                // following in again!!
                // ****************************************************************************
                // else return "";
                // //****************************************************************************
                // // The following is commented out.. the concept of the default lang
                // seems to be bad....
                // //****************************************************************************
                // MS:
                else {
                        if (get(DEFAULT_KEY) != null) {
                                return get(DEFAULT_KEY);
                        }

                        // log.debug("return first best <> '' ");
                        if (size() > 0)
                                for (String s : values()) {
                                        if ((s != null) && (s.trim().length() > 0))
                                                return s;
                                }
                }
                // log.warn("No translation found!");
                return NO_TRANSLATION;
        }

        /**
         * {@link PropertyChangeListener} can be registered to be informed when the
         * {@link Locale} changed.<br>
         * The listeners are kept in a {@link WeakHashMap}, so you have to keep a
         * reference to the listener or it will be removed!
         * 
         * @param propertyChangeListener
         *            A {@link PropertyChangeListener} that will be called when
         *            {@link #setActiveLang(String)} changes the language.
         */
        public static void addLocaleChangeListener(
                        PropertyChangeListener propertyChangeListener) {
                listeners.add(propertyChangeListener);
        }

        /**
         * {@link PropertyChangeListener} can be registered to be informed when the
         * {@link Locale} changed.<br>
         * The listeners are kept in a {@link WeakHashMap}, so you have to keep a
         * reference to the listener or it will be removed!
         * 
         * @param propertyChangeListener
         *            A {@link PropertyChangeListener} that will be called when
         *            {@link #setActiveLang(String)} changes the language.
         */
        public static boolean removeLocaleChangeListener(
                        PropertyChangeListener propertyChangeListener) {
                return listeners.remove(propertyChangeListener);
        }

        /**
         * Informs all registered {@link PropertyChangeListener}s about a change of
         * the the {@link Locale}.
         */
        public static void fireLocaleChangeEvents() {
                PropertyChangeEvent pce = new PropertyChangeEvent(new Translation(
                                new ArrayList<String>(), "fakeSource"), LOCALECHANGE_PROPERTY,
                                null, getActiveLang());
                for (PropertyChangeListener pcl : listeners) {
                        if (pcl != null)
                                pcl.propertyChange(pce);
                }
        }

        /**
         * The listeneras are stored in a {@link WeakHashSet}! So you HAVE TO KEEP a
         * reference as long as you need the listener.
         */
        public void addTranslationChangeListener(ActionListener actionListener) {
                if (actionListeners.add(actionListener)) {
                        LOGGER
                                        .debug("registering a new translationChangeActionListener in the WeakHashSet");
                }
        }

        /**
         * The listeneras are stored in a {@link WeakHashSet}! You don't have to
         * remove the listener, as long as you throw away the reference to the
         * listener.
         */
        public boolean removeTranslationChangeListener(ActionListener actionListener) {
                return actionListeners.remove(actionListener);
        }

        public void fireTranslationChangedEvents(String lang) {
                ActionEvent ae = new ActionEvent(this, new Random().nextInt(), lang);

                final Iterator<ActionListener> iterator = actionListeners.iterator();
                while (iterator.hasNext()) {
                        ActionListener al = iterator.next();
                        al.actionPerformed(ae);
                }
        }

        @Override
        public String put(String lang, String value) {
                String result = super.put(lang, value);
                fireTranslationChangedEvents(lang);
                return result;
        }

        public void fromOneLine(InternationalString iString) {
                if (iString != null)
                        fromOneLine(iString.toString());
                else
                        fromOneLine((String) null);
        }

        /**
         * Copy this {@link Translation} to another {@link Translation} e.g. for
         * editing
         * 
         * @return the destination {@link Translation}
         */
        @Override
        public Translation copyTo(Translation translation2) {

                if (translation2 == null)
                        // throw new IllegalArgumentException(
                        // "Target translation may not be null.");
                        return copy();
                for (String s : keySet()) {
                        translation2.put(s, get(s));
                }

                return translation2;
        }

        @Override
        public Translation copy() {
                return copyTo(new Translation());
        }

        /**
         * Checks if the {@link String}s stored in the {@link Translation} are all
         * valid.
         * 
         * @return <code>true</code> if all good
         */
        public static boolean checkValid(Translation translationToCheck) {

                for (String l : translationToCheck.values()) {

                        if (l.contains("{") || l.contains("}")) {

                                return false;
                        }
                }
                return true;
        }

}
1	/*******************************************************************************
2	* Copyright (c) 2009 Martin O. J. Schmitz.
3	*
4	* This file is part of the SCHMITZM library - a collection of utility
5	* classes based on Java 1.6, focusing (not only) on Java Swing
6	* and the Geotools library.
7	*
8	* The SCHMITZM project is hosted at:
9	* http://wald.intevation.org/projects/schmitzm/
10	*
11	* This program is free software; you can redistribute it and/or
12	* modify it under the terms of the GNU Lesser General Public License
13	* as published by the Free Software Foundation; either version 3
14	* of the License, or (at your option) any later version.
15	*
16	* This program is distributed in the hope that it will be useful,
17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	* GNU General Public License for more details.
20	*
21	* You should have received a copy of the GNU Lesser General Public License (license.txt)
22	* along with this program; if not, write to the Free Software
23	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24	* or try this link: http://www.gnu.org/licenses/lgpl.html
25	*
26	* Contributors:
27	* Martin O. J. Schmitz - initial API and implementation
28	* Stefan A. Krüger - additional utility classes
29	******************************************************************************/
30	package skrueger.i8n;
31
32	import java.awt.event.ActionEvent;
33	import java.awt.event.ActionListener;
34	import java.beans.PropertyChangeEvent;
35	import java.beans.PropertyChangeListener;
36	import java.util.ArrayList;
37	import java.util.HashMap;
38	import java.util.Iterator;
39	import java.util.List;
40	import java.util.Locale;
41	import java.util.Random;
42	import java.util.WeakHashMap;
43
44	import javax.swing.JComponent;
45
46	import org.apache.log4j.Logger;
47	import org.geotools.util.WeakHashSet;
48	import org.opengis.util.InternationalString;
49
50	import skrueger.geotools.Copyable;
51
52	/**
53	* Represents a {@link HashMap} of translations. toString() returns the
54	* appropriate translation
55	*
56	* @author @author <a href="mailto:[email protected]">Stefan Alfons
57	* Krüger</a>
58	*/
59
60	public class Translation extends HashMap<String, String> implements
61	Copyable<Translation> {
62	public static final String LOCALECHANGE_PROPERTY = "localechange";
63	public static final String NO_TRANSLATION = "NO TRANSLATION";
64	public static final String DEFAULT_KEY = "default";
65	static final Logger LOGGER = Logger.getLogger(Translation.class);
66	static String activeLang = Locale.getDefault().getLanguage();
67
68	static protected WeakHashSet<PropertyChangeListener> listeners = new WeakHashSet<PropertyChangeListener>(
69	PropertyChangeListener.class);
70
71	static {
72
73	// TODO default aus Locale auslesen und mit möglichen vergleichen...
74	// mmm.. vor laden von atlasml immer DEFAULT_KEY, also hier nicht
75
76	// Get default locale
77	Locale locale = Locale.getDefault();
78	setActiveLang(locale.getLanguage());
79	}
80
81	private WeakHashSet<ActionListener> actionListeners = new WeakHashSet<ActionListener>(
82	ActionListener.class);
83
84	@Override
85	/*
86	* @comment To make a copy of a translation see methods toOneLine() and
87	* fromOneLine()
88	*/
89	public Translation clone() {
90	throw new RuntimeException("use copy()");
91	// return (Translation) super.clone();
92	}
93
94	/**
95	* Get the two-letter language sting that is active
96	*/
97	public static String getActiveLang() {
98	return activeLang;
99	}
100
101	/**
102	* Set up the {@link Translation}-system to use language. If a change is
103	* performed, events are fired to listeners. Nothing is done if the new
104	* language equals the old language. The system's default locale is changed.
105	*
106	* @param newLang
107	* The ISO Code of the new active language
108	*/
109	public static void setActiveLang(String newLang) {
110	setActiveLang(newLang, true);
111	}
112
113	/**
114	* Set up the {@link Translation}-system to use language. If a change is
115	* performed, events are fired to listeners. Nothing is done if the new
116	* language equals the old language.
117	*
118	* @param newLang
119	* The ISO Code of the new active language
120	*
121	* @param setDefaultLocale
122	* Shall the system's default locale be changed?
123	*/
124	public static void setActiveLang(String newLang, boolean setDefaultLocale) {
125	if (getActiveLang().equals(newLang)) {
126	return;
127	}
128
129	if (!I8NUtil.isValidISOLangCode(newLang)) {
130	throw new IllegalArgumentException("'" + newLang
131	+ "' is not a valid ISO language code.");
132	}
133
134	Locale newLocale = new Locale(newLang);
135	if (setDefaultLocale)
136	Locale.setDefault(newLocale);
137
138	/**
139	* Setting default locale for Swing JComponents to work around bug
140	* http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4884480
141	*/
142	JComponent.setDefaultLocale(newLocale);
143
144	Translation.activeLang = newLang;
145
146	fireLocaleChangeEvents();
147
148	LOGGER.info("skrueger.i8n.Translation switched ActiveLang to "
149	+ newLang);
150	}
151
152	/**
153	* Initializes a new {@link Translation} with a default translation if a
154	* simple text is passed. If a "oneLine" text is parsed, it is interpreted.
155	* Other translations may be added later - this is a HashMap<br/>
156	*
157	* @param defaultTranslation
158	*
159	* @see public Translation(List<String> languages, String
160	* defaultTranslation) {
161	*
162	*/
163	public Translation(String defaultTranslation) {
164
165	fromOneLine(defaultTranslation);
166
167	}
168
169	/**
170	* Initializes a new {@link Translation}, an uses the given String to
171	* initialize the {@link Translation} for all languages codes passed.
172	*
173	* The translations can be changed later
174	*/
175	public Translation(List<String> languages, String defaultTranslation) {
176	// put(DEFAULT_KEY, defaultTranslation);
177	if (languages == null) {
178	put(DEFAULT_KEY, defaultTranslation);
179	} else
180	for (String code : languages) {
181	if (code.equals(getActiveLang())) {
182	put(code, defaultTranslation);
183	}
184	}
185	}
186
187	/**
188	* Sometimes Translations are optional, like for keywords.
189	*/
190	public Translation() {
191	}
192
193	/**
194	* Fills the {@link Translation} with the values coded into the String
195	* Format of {@link String} is: "de{Baum}en{tree}"
196	* <p>
197	* <ul>
198	* <li>If <code>oneLineCoded</code> is empty or null, NO TRANSLATION is set.
199	* <li>If format can't be recognized, the {@link String} is interpreted as
200	* the translation in the <code>{@value #DEFAULT_KEY}</code> language
201	*
202	* @author Stefan Alfons Krüger
203	*/
204	public void fromOneLine(final String oneLineCoded) {
205
206	clear();
207
208	try {
209
210	if ((oneLineCoded == null) \|\| (oneLineCoded.equals(""))) {
211	put(DEFAULT_KEY, "");
212	return;
213	}
214
215	if (oneLineCoded.indexOf("}") == -1) {
216	// log.warn("The String '"+oneLineCoded+"' is not in oneLine coded => put(DEFAULT_KEY,oneLineCoded);");
217	put(DEFAULT_KEY, oneLineCoded);
218	}
219
220	String eatUp = oneLineCoded;
221	while (eatUp.indexOf("}") != -1) {
222	String substring = eatUp.substring(0, eatUp.indexOf("}"));
223
224	// log.debug("substring = "+substring);
225	String key = substring.substring(0, substring.indexOf("{"));
226	String value = substring.substring(substring.indexOf("{") + 1,
227	substring.length());
228	// log.debug("key="+key);
229	// log.debug("value="+value);
230	put(key, value);
231	eatUp = eatUp.substring(eatUp.indexOf("}") + 1);
232	}
233	} catch (Exception e) {
234	LOGGER.warn("Error while reading the oneLineCode '" + oneLineCoded
235	+ "'", e);
236	LOGGER.warn("Translation will be empty!");
237	}
238	}
239
240	/**
241	* Exports the Translations to a String of the Format: "de{Baum}en{tree}"
242	*
243	* @author Stefan Alfons Krüger
244	*/
245	public String toOneLine() {
246	return I8NUtil.toOneLine(this);
247	}
248
249	/**
250	* Returns the right translation by using the {@link #activeLang} field. If
251	* no translation is set, an ugly String {@link #NO_TRANSLATION} will re
252	* returned. This might be changed for the final release. If the correct
253	* language was not found, any entry in the {@link Translation}
254	* {@link HashMap} will be returned, that contains more than an empty
255	* string.
256	*/
257	@Override
258	public String toString() {
259	if (get(activeLang) != null) {
260	return get(activeLang);
261	}
262	// ****************************************************************************
263	// MS: The ISDSS needs the concept of the default lang!! So I took the
264	// following in again!!
265	// ****************************************************************************
266	// else return "";
267	// //****************************************************************************
268	// // The following is commented out.. the concept of the default lang
269	// seems to be bad....
270	// //****************************************************************************
271	// MS:
272	else {
273	if (get(DEFAULT_KEY) != null) {
274	return get(DEFAULT_KEY);
275	}
276
277	// log.debug("return first best <> '' ");
278	if (size() > 0)
279	for (String s : values()) {
280	if ((s != null) && (s.trim().length() > 0))
281	return s;
282	}
283	}
284	// log.warn("No translation found!");
285	return NO_TRANSLATION;
286	}
287
288	/**
289	* {@link PropertyChangeListener} can be registered to be informed when the
290	* {@link Locale} changed.<br>
291	* The listeners are kept in a {@link WeakHashMap}, so you have to keep a
292	* reference to the listener or it will be removed!
293	*
294	* @param propertyChangeListener
295	* A {@link PropertyChangeListener} that will be called when
296	* {@link #setActiveLang(String)} changes the language.
297	*/
298	public static void addLocaleChangeListener(
299	PropertyChangeListener propertyChangeListener) {
300	listeners.add(propertyChangeListener);
301	}
302
303	/**
304	* {@link PropertyChangeListener} can be registered to be informed when the
305	* {@link Locale} changed.<br>
306	* The listeners are kept in a {@link WeakHashMap}, so you have to keep a
307	* reference to the listener or it will be removed!
308	*
309	* @param propertyChangeListener
310	* A {@link PropertyChangeListener} that will be called when
311	* {@link #setActiveLang(String)} changes the language.
312	*/
313	public static boolean removeLocaleChangeListener(
314	PropertyChangeListener propertyChangeListener) {
315	return listeners.remove(propertyChangeListener);
316	}
317
318	/**
319	* Informs all registered {@link PropertyChangeListener}s about a change of
320	* the the {@link Locale}.
321	*/
322	public static void fireLocaleChangeEvents() {
323	PropertyChangeEvent pce = new PropertyChangeEvent(new Translation(
324	new ArrayList<String>(), "fakeSource"), LOCALECHANGE_PROPERTY,
325	null, getActiveLang());
326	for (PropertyChangeListener pcl : listeners) {
327	if (pcl != null)
328	pcl.propertyChange(pce);
329	}
330	}
331
332	/**
333	* The listeneras are stored in a {@link WeakHashSet}! So you HAVE TO KEEP a
334	* reference as long as you need the listener.
335	*/
336	public void addTranslationChangeListener(ActionListener actionListener) {
337	if (actionListeners.add(actionListener)) {
338	LOGGER
339	.debug("registering a new translationChangeActionListener in the WeakHashSet");
340	}
341	}
342
343	/**
344	* The listeneras are stored in a {@link WeakHashSet}! You don't have to
345	* remove the listener, as long as you throw away the reference to the
346	* listener.
347	*/
348	public boolean removeTranslationChangeListener(ActionListener actionListener) {
349	return actionListeners.remove(actionListener);
350	}
351
352	public void fireTranslationChangedEvents(String lang) {
353	ActionEvent ae = new ActionEvent(this, new Random().nextInt(), lang);
354
355	final Iterator<ActionListener> iterator = actionListeners.iterator();
356	while (iterator.hasNext()) {
357	ActionListener al = iterator.next();
358	al.actionPerformed(ae);
359	}
360	}
361
362	@Override
363	public String put(String lang, String value) {
364	String result = super.put(lang, value);
365	fireTranslationChangedEvents(lang);
366	return result;
367	}
368
369	public void fromOneLine(InternationalString iString) {
370	if (iString != null)
371	fromOneLine(iString.toString());
372	else
373	fromOneLine((String) null);
374	}
375
376	/**
377	* Copy this {@link Translation} to another {@link Translation} e.g. for
378	* editing
379	*
380	* @return the destination {@link Translation}
381	*/
382	@Override
383	public Translation copyTo(Translation translation2) {
384
385	if (translation2 == null)
386	// throw new IllegalArgumentException(
387	// "Target translation may not be null.");
388	return copy();
389	for (String s : keySet()) {
390	translation2.put(s, get(s));
391	}
392
393	return translation2;
394	}
395
396	@Override
397	public Translation copy() {
398	return copyTo(new Translation());
399	}
400
401	/**
402	* Checks if the {@link String}s stored in the {@link Translation} are all
403	* valid.
404	*
405	* @return <code>true</code> if all good
406	*/
407	public static boolean checkValid(Translation translationToCheck) {
408
409	for (String l : translationToCheck.values()) {
410
411	if (l.contains("{") \|\| l.contains("}")) {
412
413	return false;
414	}
415	}
416	return true;
417	}
418
419	}