Java tutorial
/******************************************************************************* * This file is part of OpenNMS(R). * * Copyright (C) 2013-2014 The OpenNMS Group, Inc. * OpenNMS(R) is Copyright (C) 1999-2014 The OpenNMS Group, Inc. * * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc. * * OpenNMS(R) is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published * by the Free Software Foundation, either version 3 of the License, * or (at your option) any later version. * * OpenNMS(R) is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with OpenNMS(R). If not, see: * http://www.gnu.org/licenses/ * * For more information contact: * OpenNMS(R) Licensing <license@opennms.org> * http://www.opennms.org/ * http://www.opennms.com/ *******************************************************************************/ package org.opennms.features.vaadin.dashboard.dashlets; import com.vaadin.event.ShortcutAction; import com.vaadin.ui.*; import org.opennms.features.vaadin.dashboard.config.ui.WallboardConfigUI; import org.opennms.features.vaadin.dashboard.config.ui.WallboardProvider; import org.opennms.features.vaadin.dashboard.model.DashletConfigurationWindow; import org.opennms.features.vaadin.dashboard.model.DashletSpec; import org.opennms.netmgt.config.KSC_PerformanceReportFactory; import java.util.Map; /** * This class is used to display a custom configuration window for the Ksc dashlet. * * @author Christian Pape */ public class KscDashletConfigurationWindow extends DashletConfigurationWindow { /** * The {@link DashletSpec} to be used */ private DashletSpec m_dashletSpec; /** * The field for storing the 'boostSeverity' parameter */ private NativeSelect m_kscSelect; /** * Constructor for instantiating new objects of this class. * * @param dashletSpec the {@link org.opennms.features.vaadin.dashboard.model.DashletSpec} to be edited */ public KscDashletConfigurationWindow(DashletSpec dashletSpec) { /** * Setting the members */ m_dashletSpec = dashletSpec; setHeight(210, Unit.PIXELS); setWidth(40, Unit.PERCENTAGE); HorizontalLayout horizontalLayout = new HorizontalLayout(); horizontalLayout.setWidth(100, Unit.PERCENTAGE); horizontalLayout.setSpacing(true); horizontalLayout.setMargin(true); FormLayout formLayout = new FormLayout(); formLayout.setWidth(100, Unit.PERCENTAGE); formLayout.setSpacing(true); formLayout.setMargin(true); m_kscSelect = new NativeSelect(); m_kscSelect.setDescription("Select KSC-report to be displayed"); m_kscSelect.setCaption("KSC-Report"); m_kscSelect.setImmediate(true); m_kscSelect.setNewItemsAllowed(false); m_kscSelect.setMultiSelect(false); m_kscSelect.setInvalidAllowed(false); m_kscSelect.setNullSelectionAllowed(false); m_kscSelect.setImmediate(true); final KSC_PerformanceReportFactory kscPerformanceReportFactory = KSC_PerformanceReportFactory.getInstance(); Map<Integer, String> reportsMap = kscPerformanceReportFactory.getReportList(); for (Map.Entry<Integer, String> entry : reportsMap.entrySet()) { m_kscSelect.addItem(entry.getKey()); m_kscSelect.setItemCaption(entry.getKey(), entry.getValue()); if (m_kscSelect.getValue() == null) { m_kscSelect.setValue(entry.getKey()); } } String chartName = m_dashletSpec.getParameters().get("kscReport"); if (chartName != null) { if (reportsMap.values().contains(chartName)) { m_kscSelect.setValue(chartName); } } formLayout.addComponent(m_kscSelect); m_kscSelect.setValue(chartName); m_kscSelect.setImmediate(true); horizontalLayout.addComponent(formLayout); /** * Using an additional {@link com.vaadin.ui.HorizontalLayout} for layouting the buttons */ HorizontalLayout buttonLayout = new HorizontalLayout(); buttonLayout.setMargin(true); buttonLayout.setSpacing(true); buttonLayout.setWidth("100%"); /** * Adding the cancel button... */ Button cancel = new Button("Cancel"); cancel.setDescription("Cancel editing"); cancel.addClickListener(new Button.ClickListener() { @Override public void buttonClick(Button.ClickEvent event) { close(); } }); cancel.setClickShortcut(ShortcutAction.KeyCode.ESCAPE, null); buttonLayout.addComponent(cancel); buttonLayout.setExpandRatio(cancel, 1.0f); buttonLayout.setComponentAlignment(cancel, Alignment.TOP_RIGHT); /** * ...and the OK button */ Button ok = new Button("Save"); ok.setDescription("Save properties and close"); ok.addClickListener(new Button.ClickListener() { @Override public void buttonClick(Button.ClickEvent event) { Map<Integer, String> reportsMap = kscPerformanceReportFactory.getReportList(); m_dashletSpec.getParameters().put("kscReport", reportsMap.get(m_kscSelect.getValue())); WallboardProvider.getInstance().save(); ((WallboardConfigUI) getUI()).notifyMessage("Data saved", "Properties"); close(); } }); ok.setClickShortcut(ShortcutAction.KeyCode.ENTER, null); buttonLayout.addComponent(ok); if (reportsMap.size() == 0) { m_kscSelect.setEnabled(false); ok.setEnabled(false); } /** * Adding the layout and setting the content */ VerticalLayout verticalLayout = new VerticalLayout(); verticalLayout.addComponent(horizontalLayout); verticalLayout.addComponent(buttonLayout); setContent(verticalLayout); } }