/*
* Copyright 2004,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.cocoon.portal.pluto.om.common;
import java.util.Collection;
import java.util.Iterator;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import java.util.Vector;
import org.apache.pluto.om.common.Language;
import org.apache.pluto.om.common.LanguageSet;
import org.apache.pluto.util.StringUtils;
/**
*
*
* @author <a href="mailto:cziegeler@apache.org">Carsten Ziegeler</a>
*
* @version CVS $Id: LanguageSetImpl.java,v 1.3 2004/03/05 13:02:15 bdelacretaz Exp $
*/
public class LanguageSetImpl extends AbstractSupportSet implements LanguageSet, java.io.Serializable, Support
{
private String castorKeywords;
private ClassLoader classLoader;
/**
* contains Locale objects for locales supported by the portlet
*/
private Vector locales;
private boolean resourceBundleInitialized;
private String resources;
private String shortTitle;
private String title;
public LanguageSetImpl()
{
locales = new Vector();
}
// create Language object with data from this class (title, short-title, description, keywords)
private Language createLanguage(Locale locale, ResourceBundle bundle)
{
LanguageImpl lang = new LanguageImpl(locale, bundle, title, shortTitle, castorKeywords);
return(Language)lang;
}
/* never used
// creates a locale object from a string representation
private Locale createLocale(String locale)
{
// parse locale String
StringTokenizer tokenizer = new StringTokenizer(locale,"_");
String[] localeDef = new String[5]; // just in case we have more than one variant
for (int i = 0; i < localeDef.length; i++)
{
if (tokenizer.hasMoreTokens())
{
localeDef[i] = tokenizer.nextToken();
}
else
{
localeDef[i] = "";
}
}
return new java.util.Locale(localeDef[0], localeDef[1], localeDef[2]+localeDef[3]+localeDef[4]);
}
*/
// AbstractSupportSet implementation.
public Language get(Locale locale)
{
if (resources!=null && resourceBundleInitialized==false)
{
initResourceBundle();
this.resourceBundleInitialized = true;
}
if (!locales.contains(locale))
{
locale = matchLocale(locale);
}
Iterator iterator = this.iterator();
while (iterator.hasNext())
{
Language language = (Language)iterator.next();
if (language.getLocale().equals(locale) || size()==1)
{
return language;
}
}
return null;
}
public Iterator getLocales()
{
return locales.iterator();
}
public Locale getDefaultLocale()
{
Locale defLoc = null;
if (locales != null && locales.size() > 0)
{
defLoc = (Locale)locales.firstElement();
if (defLoc == null)
{
defLoc = new Locale("en","");
locales.add(defLoc);
}
}
else
{
defLoc = new Locale("en","");
locales.add(defLoc);
}
return defLoc;
}
// Support implementation.
public void postBuild(Object parameter) throws Exception
{
}
public void postLoad(Object parameter) throws Exception
{
locales.addAll((Collection)parameter);
initInlinedInfos();
}
public void postStore(Object parameter) throws Exception
{
}
public void preBuild(Object parameter) throws Exception
{
}
public void preStore(Object parameter) throws Exception
{
}
// internal methods.
private void initInlinedInfos() throws Exception
{
// if resource-bundle is given
// must be initialized later when classloader is known by initResourceBundle()
if (locales.isEmpty())
{
getDefaultLocale(); //the defualt gets automaticaly added to the locals
}
if (castorKeywords == null)
{
castorKeywords="";
}
if (shortTitle == null)
{
shortTitle="";
}
if (title == null)
{
title="";
}
add(createLanguage(getDefaultLocale(), null));
}
// create and add all resource bundle information as Language objects to this set
private void initResourceBundle()
{
Iterator iter = locales.iterator();
while (iter.hasNext())
{
Locale locale = (Locale)iter.next();
ResourceBundle bundle = null;
bundle = loadResourceBundle(locale);
if (bundle != null)
{
/*String title;
String shortTitle;
String keywords;
try {
title=bundle.getString("javax.portlet.title");
} catch(MissingResourceException x) {
title = this.title;
}
try {
shortTitle=bundle.getString("javax.portlet.short-title");
} catch(MissingResourceException x) {
shortTitle = this.shortTitle;
}
try {
keywords=bundle.getString("javax.portlet.keywords");
} catch(MissingResourceException x) {
keywords = this.castorKeywords;
}*/
Language language = createLanguage(locale, bundle);
remove(language);
add(language);
}
}
}
// try to match the given locale to a supported locale
private Locale matchLocale(Locale locale)
{
String variant = locale.getVariant();
if (variant != null && variant.length() > 0)
{
locale = new Locale(locale.getLanguage(), locale.getCountry());
}
if (! locales.contains(locale))
{
String country = locale.getCountry();
if (country != null && country.length() > 0)
{
locale = new Locale(locale.getLanguage(), "");
}
}
if (! locales.contains(locale))
{
locale = getDefaultLocale();
}
return locale;
}
// additional methods.
public String getCastorKeywords()
{
return this.castorKeywords;
}
// additional methods
public String getResources()
{
return resources;
}
public String getShortTitle()
{
return this.shortTitle;
}
// internal methods used by castor
public String getTitle()
{
return this.title;
}
// loads resource bundle files from WEB-INF/classes directory
protected ResourceBundle loadResourceBundle(Locale locale)
{
ResourceBundle resourceBundle = null;
try
{
if (classLoader != null)
{
resourceBundle=ResourceBundle.getBundle(resources, locale, classLoader);
}
else
{
resourceBundle=ResourceBundle.getBundle(resources, locale, Thread.currentThread().getContextClassLoader());
}
}
catch (MissingResourceException x)
{
return null;
}
return resourceBundle;
}
public void setCastorKeywords(String keywords)
{
this.castorKeywords = keywords;
}
// end castor methods
public void setClassLoader(ClassLoader loader)
{
this.classLoader = loader;
}
public void setResources(String resources)
{
this.resources = resources;
}
public void setShortTitle(String shortTitle)
{
this.shortTitle = shortTitle;
}
public void setTitle(String title)
{
this.title = title;
}
public String toString()
{
return toString(0);
}
public String toString(int indent)
{
StringBuffer buffer = new StringBuffer(50);
StringUtils.newLine(buffer,indent);
buffer.append(getClass().toString());
buffer.append(": ");
Iterator iterator = this.iterator();
while (iterator.hasNext())
{
buffer.append(((LanguageImpl)iterator.next()).toString(indent+2));
}
return buffer.toString();
}
}