Java tutorial
/******************************************************************************* * Copyright 2012 Christian Ternes and Thorsten Volland * * 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.businessmanager.web.controller.page.admin; import java.math.BigDecimal; import java.util.ArrayList; import java.util.Currency; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Locale; import java.util.Map; import javax.annotation.PostConstruct; import javax.faces.application.FacesMessage; import javax.faces.context.FacesContext; import javax.faces.model.SelectItem; import org.businessmanager.domain.settings.ApplicationSetting; import org.businessmanager.domain.settings.ApplicationSetting.Group; import org.businessmanager.geodb.Country; import org.businessmanager.geodb.OpenGeoDB; import org.businessmanager.service.settings.ApplicationSettingsService; import org.businessmanager.web.controller.AbstractController; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Component; @Component("settingsController") @Scope("request") public class SettingsController extends AbstractController { @Autowired private ApplicationSettingsService service; @Autowired private OpenGeoDB openGeoService; private Map<String, String> settingsMap = new HashMap<String, String>(); private BigDecimal vatPercentage; @PostConstruct public void init() { List<ApplicationSetting> applicationSettingsList = service .getApplicationSettingsByGroup(Group.SYSTEM_PREFERENCES); for (ApplicationSetting applicationSetting : applicationSettingsList) { getSettingsMap().put(applicationSetting.getParamKey(), applicationSetting.getParamValue()); //retrieve vat percentage if (applicationSetting.getParamKey().equals(ApplicationSettingsService.INVOICES_VATPERCENTAGE)) { setVatPercentage(new BigDecimal(applicationSetting.getParamValue())); } } } public void save() { if (settingsMap != null) { Iterator<String> anIterator = settingsMap.keySet().iterator(); while (anIterator.hasNext()) { String aKey = anIterator.next(); String aValue = settingsMap.get(aKey); if (aValue != null) { service.setApplicationSetting(ApplicationSetting.Group.SYSTEM_PREFERENCES, aKey, aValue); } } //set vat percentag if (vatPercentage != null) { service.setApplicationSetting(ApplicationSetting.Group.SYSTEM_PREFERENCES, ApplicationSettingsService.INVOICES_VATPERCENTAGE, vatPercentage.toString()); } openGeoService.refreshListOfCountries(); addMessage(FacesMessage.SEVERITY_INFO, "settings_saved"); } } public Map<String, String> getSettingsMap() { return settingsMap; } public List<SelectItem> getAvailableLanguages() { Locale language = getCurrentLocale(); String german = Locale.GERMAN.getDisplayLanguage(language); String english = Locale.ENGLISH.getDisplayLanguage(language); List<SelectItem> aSelectItemsList = new ArrayList<SelectItem>(); aSelectItemsList.add(new SelectItem(Locale.GERMAN.getLanguage(), german)); aSelectItemsList.add(new SelectItem(Locale.ENGLISH.getLanguage(), english)); return aSelectItemsList; } public List<Country> getAvailableCountries() { String language = getCurrentLocale().getLanguage(); return openGeoService.getListOfCountries(language); } public List<Currency> getAvailableCurrencies() { String language = getCurrentLocale().getLanguage(); return openGeoService.getListOfCurrencies(language); } private Locale getCurrentLocale() { return FacesContext.getCurrentInstance().getViewRoot().getLocale(); } public void setVatPercentage(BigDecimal vatPercentage) { this.vatPercentage = vatPercentage; } public BigDecimal getVatPercentage() { return vatPercentage; } }