Java tutorial
/* 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.activiti.explorer.ui.management.admin; import org.activiti.engine.IdentityService; import org.activiti.engine.ProcessEngines; import org.activiti.engine.impl.ProcessEngineImpl; import org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl; import org.activiti.explorer.ExplorerApp; import org.activiti.explorer.I18nManager; import org.activiti.explorer.Messages; import org.activiti.explorer.ui.Images; import org.activiti.explorer.ui.custom.DetailPanel; import org.activiti.explorer.ui.mainlayout.ExplorerLayout; import com.vaadin.ui.Alignment; import com.vaadin.ui.Embedded; import com.vaadin.ui.GridLayout; import com.vaadin.ui.HorizontalLayout; import com.vaadin.ui.Label; import com.vaadin.ui.VerticalLayout; import com.vaadin.ui.themes.Reindeer; /** * @author Tijs Rademakers */ public class AdminDatabaseSettingsPanel extends DetailPanel { private static final long serialVersionUID = 1L; protected transient IdentityService identityService; protected I18nManager i18nManager; protected ProcessEngineConfigurationImpl engineConfiguration; protected VerticalLayout panelLayout; protected HorizontalLayout detailLayout; protected GridLayout detailsGrid; public AdminDatabaseSettingsPanel() { ProcessEngineImpl processEngine = (ProcessEngineImpl) ProcessEngines.getDefaultProcessEngine(); engineConfiguration = (ProcessEngineConfigurationImpl) processEngine.getProcessEngineConfiguration(); this.i18nManager = ExplorerApp.get().getI18nManager(); init(); } protected void init() { setSizeFull(); addStyleName(Reindeer.PANEL_LIGHT); initPageTitle(); initDatabaseSettingsDetails(); } protected void initPageTitle() { HorizontalLayout layout = new HorizontalLayout(); layout.setWidth(100, UNITS_PERCENTAGE); layout.addStyleName(ExplorerLayout.STYLE_TITLE_BLOCK); layout.setSpacing(true); layout.setMargin(false, false, true, false); addDetailComponent(layout); Embedded databaseImage = new Embedded(null, Images.DATABASE_50); layout.addComponent(databaseImage); Label groupName = new Label(i18nManager.getMessage(Messages.DATABASE_TITLE)); groupName.setSizeUndefined(); groupName.addStyleName(Reindeer.LABEL_H2); layout.addComponent(groupName); layout.setComponentAlignment(groupName, Alignment.MIDDLE_LEFT); layout.setExpandRatio(groupName, 1.0f); } protected void initDatabaseSettingsDetails() { Label settingsHeader = new Label(i18nManager.getMessage(Messages.MGMT_MENU_DATABASE)); settingsHeader.addStyleName(ExplorerLayout.STYLE_H3); settingsHeader.addStyleName(ExplorerLayout.STYLE_DETAIL_BLOCK); addDetailComponent(settingsHeader); detailLayout = new HorizontalLayout(); detailLayout.setSpacing(true); detailLayout.setMargin(true, false, true, false); addDetailComponent(detailLayout); initSettingsProperties(); } protected void initSettingsProperties() { detailsGrid = new GridLayout(2, 3); detailsGrid.setSpacing(true); detailLayout.setMargin(true, true, true, false); detailLayout.addComponent(detailsGrid); // Database type Label typeLabel = new Label(i18nManager.getMessage(Messages.DATABASE_TYPE) + ": "); typeLabel.addStyleName(ExplorerLayout.STYLE_LABEL_BOLD); detailsGrid.addComponent(typeLabel); Label typeValueLabel = new Label(engineConfiguration.getDatabaseType()); detailsGrid.addComponent(typeValueLabel); // Database schema update Label schemaUpdateLabel = new Label(i18nManager.getMessage(Messages.DATABASE_UPDATE) + ": "); schemaUpdateLabel.addStyleName(ExplorerLayout.STYLE_LABEL_BOLD); detailsGrid.addComponent(schemaUpdateLabel); Label schemaUpdateValueLabel = new Label(engineConfiguration.getDatabaseSchemaUpdate()); detailsGrid.addComponent(schemaUpdateValueLabel); // Config type Label configTypeLabel = new Label(i18nManager.getMessage(Messages.DATABASE_CONFIG_TYPE) + ": "); configTypeLabel.addStyleName(ExplorerLayout.STYLE_LABEL_BOLD); detailsGrid.addComponent(configTypeLabel); String databaseConfigType = getDatabaseType(); Label configTypeValueLabel = new Label(databaseConfigType); detailsGrid.addComponent(configTypeValueLabel); if ("JNDI".equals(databaseConfigType)) { // JNDI Label jndiLabel = new Label(i18nManager.getMessage(Messages.DATABASE_JNDI) + ": "); jndiLabel.addStyleName(ExplorerLayout.STYLE_LABEL_BOLD); detailsGrid.addComponent(jndiLabel); Label jndiValueLabel = new Label(engineConfiguration.getDataSourceJndiName()); detailsGrid.addComponent(jndiValueLabel); } else if ("Datasource".equals(databaseConfigType)) { // Datasource class Label datasourceLabel = new Label(i18nManager.getMessage(Messages.DATABASE_DATASOURCE_CLASS) + ": "); datasourceLabel.addStyleName(ExplorerLayout.STYLE_LABEL_BOLD); detailsGrid.addComponent(datasourceLabel); Label datasourceValueLabel = new Label(engineConfiguration.getDataSource().getClass().getName()); detailsGrid.addComponent(datasourceValueLabel); } else { // JDBC URL Label jdbcURLLabel = new Label(i18nManager.getMessage(Messages.DATABASE_JDBC_URL) + ": "); jdbcURLLabel.addStyleName(ExplorerLayout.STYLE_LABEL_BOLD); detailsGrid.addComponent(jdbcURLLabel); Label jdbcURLValueLabel = new Label(engineConfiguration.getJdbcUrl()); detailsGrid.addComponent(jdbcURLValueLabel); } } protected String getDatabaseType() { String databaseType = null; if (engineConfiguration.getDataSourceJndiName() != null) { databaseType = "JNDI"; } else if (engineConfiguration.getDataSource() != null) { databaseType = "Datasource"; } else { databaseType = "JDBC config"; } return databaseType; } }