001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.util.bridges.jsf.common;
016    
017    import com.liferay.portal.kernel.language.LanguageUtil;
018    import com.liferay.portal.kernel.log.Log;
019    import com.liferay.portal.kernel.log.LogFactoryUtil;
020    
021    import java.util.Collection;
022    import java.util.Locale;
023    import java.util.Map;
024    import java.util.Set;
025    
026    import javax.faces.context.FacesContext;
027    
028    /**
029     * <p>
030     * This class serves as a bridge between the JSF Expression Language (EL) and
031     * Liferay's Language.properties resource bundle.
032     * </p>
033     *
034     * @author Neil Griffin
035     */
036    public class LanguageManagedBean implements Map<String, String> {
037    
038            @Override
039            public void clear() {
040                    throw new UnsupportedOperationException();
041            }
042    
043            @Override
044            public boolean containsKey(Object key) {
045                    throw new UnsupportedOperationException();
046            }
047    
048            @Override
049            public boolean containsValue(Object value) {
050                    throw new UnsupportedOperationException();
051            }
052    
053            @Override
054            public Set<Entry<String, String>> entrySet() {
055                    throw new UnsupportedOperationException();
056            }
057    
058            @Override
059            public String get(Object key) {
060                    String value = null;
061    
062                    if (key != null) {
063                            FacesContext facesContext = FacesContext.getCurrentInstance();
064    
065                            Locale locale = facesContext.getViewRoot().getLocale();
066    
067                            if (locale == null) {
068                                    locale = facesContext.getApplication().getDefaultLocale();
069                            }
070    
071                            value = LanguageUtil.get(locale, key.toString());
072    
073                            if (_log.isDebugEnabled()) {
074                                    _log.debug(
075                                            "{locale=" + locale + ", key=" + key + ", value=" + value);
076                            }
077                    }
078    
079                    return value;
080            }
081    
082            @Override
083            public boolean isEmpty() {
084                    throw new UnsupportedOperationException();
085            }
086    
087            @Override
088            public Set<String> keySet() {
089                    throw new UnsupportedOperationException();
090            }
091    
092            @Override
093            public String put(String key, String value) {
094                    throw new UnsupportedOperationException();
095            }
096    
097            @Override
098            public void putAll(Map<? extends String, ? extends String> map) {
099                    throw new UnsupportedOperationException();
100            }
101    
102            @Override
103            public String remove(Object key) {
104                    throw new UnsupportedOperationException();
105            }
106    
107            @Override
108            public int size() {
109                    throw new UnsupportedOperationException();
110            }
111    
112            @Override
113            public Collection<String> values() {
114                    throw new UnsupportedOperationException();
115            }
116    
117            private static Log _log = LogFactoryUtil.getLog(LanguageManagedBean.class);
118    
119    }