001/*
002 *  Copyright 2012 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.core.i18n;
017
018import java.util.Iterator;
019import java.util.Locale;
020import java.util.Map;
021
022import org.apache.avalon.framework.configuration.Configuration;
023import org.apache.avalon.framework.configuration.ConfigurationException;
024import org.apache.avalon.framework.service.ServiceException;
025import org.apache.avalon.framework.service.ServiceManager;
026import org.apache.avalon.framework.thread.ThreadSafe;
027import org.apache.cocoon.components.modules.input.InputModule;
028
029import org.ametys.core.util.language.LocaleHelper;
030import org.ametys.runtime.plugin.component.DeferredServiceable;
031
032/**
033 * Input module for getting informations about currently used locale.<br>
034 * The search algorithm is the same as {@link org.apache.cocoon.i18n.I18nUtils}.<br>
035 * 3 variables are available : "locale", "country" and "language"
036 */
037public class LocaleInputModule implements InputModule, ThreadSafe, DeferredServiceable
038{
039    /** The current user provider */
040    protected LocaleHelper _localeHelper;
041    
042    public void deferredService(ServiceManager manager) throws ServiceException
043    {
044        _localeHelper = (LocaleHelper) manager.lookup(LocaleHelper.ROLE);
045    }
046    
047    public Object getAttribute(String name, Configuration modeConf, Map objectModel) throws ConfigurationException
048    {
049        Locale locale = _localeHelper.findLocale(objectModel);
050        if ("locale".equals(name))
051        {
052            return locale;
053        }
054        else if ("language".equals(name))
055        {
056            return locale.getLanguage();
057        }
058
059        return null;
060    }
061    
062    public Iterator getAttributeNames(Configuration modeConf, Map objectModel) throws ConfigurationException
063    {
064        return null;
065    }
066
067    public Object[] getAttributeValues(String name, Configuration modeConf, Map objectModel) throws ConfigurationException
068    {
069        return new Object[] {getAttribute(name, modeConf, objectModel)};
070    }
071}