Java tutorial
/* * Copyright 2016 Alessandro Falappa. * * 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 com.github.alexfalappa.nbspringboot.projects.initializr; import java.awt.Component; import java.util.HashSet; import java.util.Set; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; import org.openide.WizardDescriptor; import org.openide.WizardValidationException; import org.openide.util.HelpCtx; import org.openide.util.NbBundle; import com.fasterxml.jackson.databind.JsonNode; import static com.github.alexfalappa.nbspringboot.projects.initializr.InitializrProjectProps.WIZ_METADATA; /** * Panel just asking for basic info. */ public class InitializrProjectWizardPanel1 implements WizardDescriptor.Panel, WizardDescriptor.ValidatingPanel, WizardDescriptor.FinishablePanel { WizardDescriptor wizardDescriptor; private InitializrProjectPanelVisual1 component; @Override public Component getComponent() { if (component == null) { component = new InitializrProjectPanelVisual1(this); component.setName(NbBundle.getMessage(InitializrProjectWizardPanel1.class, "LBL_BasePropsStep")); } return component; } @Override public HelpCtx getHelp() { // Show no Help button for this panel: return HelpCtx.DEFAULT_HELP; // If you have context help: // return new HelpCtx("help.key.here"); } @Override public boolean isValid() { getComponent(); return component.valid(wizardDescriptor); } private final Set<ChangeListener> listeners = new HashSet<>(1); // or can use ChangeSupport in NB 6.0 @Override public final void addChangeListener(ChangeListener l) { synchronized (listeners) { listeners.add(l); } } @Override public final void removeChangeListener(ChangeListener l) { synchronized (listeners) { listeners.remove(l); } } protected final void fireChangeEvent() { Set<ChangeListener> ls; synchronized (listeners) { ls = new HashSet<>(listeners); } ChangeEvent ev = new ChangeEvent(this); for (ChangeListener l : ls) { l.stateChanged(ev); } } @Override public void readSettings(Object settings) { wizardDescriptor = (WizardDescriptor) settings; component.read(wizardDescriptor); } @Override public void storeSettings(Object settings) { WizardDescriptor d = (WizardDescriptor) settings; component.store(d); } @Override public boolean isFinishPanel() { return false; } @Override public void validate() throws WizardValidationException { getComponent(); component.validate(wizardDescriptor); } public JsonNode getInitializrMetadata() throws Exception { // invoke initializr service to get metadata JsonNode metadata = InitializrService.getInstance().getMetadata(); // store metadata as wizard descriptor property this.wizardDescriptor.putProperty(WIZ_METADATA, metadata); return metadata; } }