Java tutorial
/******************************************************************************* * Copyright (c) 2011, 2016 Eurotech and/or its affiliates * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Eurotech *******************************************************************************/ package org.eclipse.kura.web.client.ui.Status; import java.util.ArrayList; import java.util.logging.Level; import java.util.logging.Logger; import org.eclipse.kura.web.client.messages.Messages; import org.eclipse.kura.web.client.messages.ValidationMessages; import org.eclipse.kura.web.client.ui.EntryClassUi; import org.eclipse.kura.web.client.util.FailureHandler; import org.eclipse.kura.web.shared.model.GwtGroupedNVPair; import org.eclipse.kura.web.shared.model.GwtSession; import org.eclipse.kura.web.shared.model.GwtXSRFToken; import org.eclipse.kura.web.shared.service.GwtSecurityTokenService; import org.eclipse.kura.web.shared.service.GwtSecurityTokenServiceAsync; import org.eclipse.kura.web.shared.service.GwtStatusService; import org.eclipse.kura.web.shared.service.GwtStatusServiceAsync; import org.gwtbootstrap3.client.ui.Button; import org.gwtbootstrap3.client.ui.Well; import org.gwtbootstrap3.client.ui.gwt.CellTable; import com.google.gwt.cell.client.SafeHtmlCell; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.safehtml.shared.SafeHtml; import com.google.gwt.safehtml.shared.SafeHtmlUtils; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.cellview.client.Column; import com.google.gwt.user.cellview.client.RowStyles; import com.google.gwt.user.cellview.client.TextColumn; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.view.client.ListDataProvider; public class StatusPanelUi extends Composite { private static final Logger logger = Logger.getLogger(StatusPanelUi.class.getSimpleName()); private static StatusPanelUiUiBinder uiBinder = GWT.create(StatusPanelUiUiBinder.class); interface StatusPanelUiUiBinder extends UiBinder<Widget, StatusPanelUi> { } private static final ValidationMessages msgs = GWT.create(ValidationMessages.class); private static final Messages MSG = GWT.create(Messages.class); private final GwtStatusServiceAsync gwtStatusService = GWT.create(GwtStatusService.class); private final GwtSecurityTokenServiceAsync gwtXSRFService = GWT.create(GwtSecurityTokenService.class); private GwtSession currentSession; private final ListDataProvider<GwtGroupedNVPair> statusGridProvider = new ListDataProvider<GwtGroupedNVPair>(); private EntryClassUi parent; @UiField Well statusWell; @UiField Button statusRefresh; @UiField CellTable<GwtGroupedNVPair> statusGrid = new CellTable<GwtGroupedNVPair>(); public StatusPanelUi() { logger.log(Level.FINER, "Initializing StatusPanelUi..."); initWidget(uiBinder.createAndBindUi(this)); // Set text for buttons this.statusRefresh.setText(MSG.refresh()); this.statusGrid.setRowStyles(new RowStyles<GwtGroupedNVPair>() { @Override public String getStyleNames(GwtGroupedNVPair row, int rowIndex) { if ("Cloud Services".equals(row.getName()) || "Connection Name".equals(row.getName()) || "Ethernet Settings".equals(row.getName()) || "Wireless Settings".equals(row.getName()) || "Cellular Settings".equals(row.getName()) || "Position Status".equals(row.getName())) { return "rowHeader"; } else { return " "; } } }); loadStatusTable(this.statusGrid, this.statusGridProvider); this.statusRefresh.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { loadStatusData(); } }); } // get current session from UI parent public void setSession(GwtSession gwtBSSession) { this.currentSession = gwtBSSession; } // create table layout public void loadStatusTable(CellTable<GwtGroupedNVPair> grid, ListDataProvider<GwtGroupedNVPair> dataProvider) { TextColumn<GwtGroupedNVPair> col1 = new TextColumn<GwtGroupedNVPair>() { @Override public String getValue(GwtGroupedNVPair object) { return String.valueOf(object.getName()); } }; col1.setCellStyleNames("status-table-row"); grid.addColumn(col1); Column<GwtGroupedNVPair, SafeHtml> col2 = new Column<GwtGroupedNVPair, SafeHtml>(new SafeHtmlCell()) { @Override public SafeHtml getValue(GwtGroupedNVPair object) { return SafeHtmlUtils.fromTrustedString(String.valueOf(object.getValue())); } }; col2.setCellStyleNames("status-table-row"); grid.addColumn(col2); dataProvider.addDataDisplay(grid); } // fetch table data public void loadStatusData() { this.statusGridProvider.getList().clear(); EntryClassUi.showWaitModal(); this.gwtXSRFService.generateSecurityToken(new AsyncCallback<GwtXSRFToken>() { @Override public void onFailure(Throwable ex) { EntryClassUi.hideWaitModal(); FailureHandler.handle(ex); } @Override public void onSuccess(GwtXSRFToken token) { StatusPanelUi.this.gwtStatusService.getDeviceConfig(token, StatusPanelUi.this.currentSession.isNetAdminAvailable(), new AsyncCallback<ArrayList<GwtGroupedNVPair>>() { @Override public void onFailure(Throwable caught) { FailureHandler.handle(caught); StatusPanelUi.this.statusGridProvider.flush(); EntryClassUi.hideWaitModal(); } @Override public void onSuccess(ArrayList<GwtGroupedNVPair> result) { String title = "cloudStatus"; StatusPanelUi.this.statusGridProvider.getList() .add(new GwtGroupedNVPair(" ", msgs.getString(title), " ")); StatusPanelUi.this.parent.updateConnectionStatusImage(false); int connectionNameIndex = 0; for (GwtGroupedNVPair resultPair : result) { if ("Connection Name".equals(resultPair.getName()) && resultPair.getValue().endsWith("CloudService")) { // done based on the idea that in the pairs data connection name is before connection // status GwtGroupedNVPair connectionStatus = result.get(connectionNameIndex + 1); if ("Service Status".equals(connectionStatus.getName()) && "CONNECTED".equals(connectionStatus.getValue())) { StatusPanelUi.this.parent.updateConnectionStatusImage(true); } else { StatusPanelUi.this.parent.updateConnectionStatusImage(false); } } connectionNameIndex++; if (!title.equals(resultPair.getGroup())) { title = resultPair.getGroup(); StatusPanelUi.this.statusGridProvider.getList() .add(new GwtGroupedNVPair(" ", msgs.getString(title), " ")); } StatusPanelUi.this.statusGridProvider.getList().add(resultPair); } int size = StatusPanelUi.this.statusGridProvider.getList().size(); StatusPanelUi.this.statusGrid.setVisibleRange(0, size); StatusPanelUi.this.statusGridProvider.flush(); EntryClassUi.hideWaitModal(); } }); } }); } public void setParent(EntryClassUi parent) { this.parent = parent; } }