Java tutorial
/** * DataCleaner (community edition) * Copyright (C) 2013 Human Inference * * This copyrighted material is made available to anyone wishing to use, modify, * copy, or redistribute it subject to the terms and conditions of the GNU * Lesser General Public License, as published by the Free Software Foundation. * * This program 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 Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this distribution; if not, write to: * Free Software Foundation, Inc. * 51 Franklin Street, Fifth Floor * Boston, MA 02110-1301 USA */ package org.eobjects.datacleaner.monitor.wizard; import java.util.ArrayList; import java.util.List; import org.eobjects.datacleaner.monitor.shared.JavaScriptCallbacks; import org.eobjects.datacleaner.monitor.shared.WizardServiceAsync; import org.eobjects.datacleaner.monitor.shared.model.TenantIdentifier; import org.eobjects.datacleaner.monitor.shared.model.WizardIdentifier; import org.eobjects.datacleaner.monitor.util.DCAsyncCallback; import org.eobjects.datacleaner.monitor.util.Urls; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.http.client.URL; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Anchor; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.FlowPanel; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.RadioButton; /** * Wizard controller for Datastore wizards */ public class DatastoreWizardController extends AbstractWizardController<WizardServiceAsync> { private int _stepsBeforeWizardPages; public DatastoreWizardController(WizardPanel wizardPanel, TenantIdentifier tenant, WizardIdentifier wizardIdentifier, WizardServiceAsync wizardService) { super(wizardPanel, tenant, wizardIdentifier, wizardService); _stepsBeforeWizardPages = 0; if (wizardIdentifier == null) { _stepsBeforeWizardPages++; } } @Override public void startWizard() { getWizardPanel().addStyleClass("JobWizardPanel"); getWizardPanel().showWizard(); final WizardIdentifier wizardIdentifier = getWizardIdentifier(); if (wizardIdentifier == null) { showWizardSelection(); return; } getWizardPanel().setHeader("Register datastore: " + wizardIdentifier.getDisplayName()); setLoading(); WizardServiceAsync wizardService = getWizardService(); wizardService.startDatastoreWizard(getTenant(), wizardIdentifier, getLocaleName(), createNextPageCallback()); } private void showWizardSelection() { setLoading(); getWizardPanel().setHeader("Register datastore"); getWizardService().getDatastoreWizardIdentifiers(getTenant(), getLocaleName(), new DCAsyncCallback<List<WizardIdentifier>>() { @Override public void onSuccess(List<WizardIdentifier> wizards) { showWizardSelection(wizards); } }); } private void showWizardSelection(final List<WizardIdentifier> wizards) { final FlowPanel panel = new FlowPanel(); panel.add(new Label("Please select the type of datastore to register:")); final List<RadioButton> radios = new ArrayList<RadioButton>(wizards.size()); if (wizards == null || wizards.isEmpty()) { panel.add(new Label("(no datastore wizards available)")); } else { for (final WizardIdentifier wizard : wizards) { final RadioButton radio = new RadioButton("wizardIdentifier", wizard.getDisplayName()); radio.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { setSteps(wizard.getExpectedPageCount() + getStepsBeforeWizardPages()); setProgress(0); } }); panel.add(radio); radios.add(radio); } } setNextClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { for (int i = 0; i < radios.size(); i++) { final RadioButton radio = radios.get(i); if (radio.getValue().booleanValue()) { final WizardIdentifier wizard = wizards.get(i); setWizardIdentifier(wizard); startWizard(); return; } } } }); setContent(panel); getWizardPanel().refreshUI(); } @Override protected int getStepsBeforeWizardPages() { return _stepsBeforeWizardPages; } @Override protected void wizardFinished(final String datastoreName) { final String encodedDatastoreName = URL.encodeQueryString(datastoreName); final Button button = new Button("Close"); button.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { // full page refresh. closeWizardAfterFinishing(datastoreName, "datastores.jsf"); } }); final Anchor jobWizardAnchor = new Anchor("Build a job for this datastore"); jobWizardAnchor.addStyleName("BuildJob"); jobWizardAnchor.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { final String htmlDivId = getWizardPanel().getCustomHtmlDivId(); closeWizardAfterFinishing(datastoreName, null); JavaScriptCallbacks.startJobWizard(datastoreName, null, htmlDivId); } }); final Anchor queryAnchor = new Anchor("Explore / query this datastore"); queryAnchor.addStyleName("QueryDatastore"); queryAnchor.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { final String url = Urls.createRelativeUrl("query.jsf?ds=" + encodedDatastoreName); Window.open(url, "_blank", "location=no,width=770,height=400,toolbar=no,menubar=no"); } }); final FlowPanel contentPanel = new FlowPanel(); contentPanel.addStyleName("WizardFinishedPanel"); contentPanel.add(new Label("Datastore '" + datastoreName + "' created! Wizard finished.")); contentPanel.add(new Label( "Click 'Close' to return, or click one of the links below to start using the datastore.")); contentPanel.add(jobWizardAnchor); contentPanel.add(queryAnchor); setContent(contentPanel); getWizardPanel().getButtonPanel().clear(); getWizardPanel().getButtonPanel().addButton(button); getWizardPanel().refreshUI(); } }