Java tutorial
/** * Copyright (C) 2009 BonitaSoft S.A. * BonitaSoft, 31 rue Gustave Eiffel - 38000 Grenoble * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2.0 of the License, or * (at your option) any later version. * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.bonitasoft.studio.validators.ui.wizard; import org.bonitasoft.studio.common.log.BonitaStudioLog; import org.bonitasoft.studio.common.repository.RepositoryManager; import org.bonitasoft.studio.common.repository.model.IRepositoryFileStore; import org.bonitasoft.studio.common.repository.model.IRepositoryStore; import org.bonitasoft.studio.dependencies.ui.dialog.SelectJarsDialog; import org.bonitasoft.studio.pics.Pics; import org.bonitasoft.studio.validators.ValidatorPlugin; import org.bonitasoft.studio.validators.descriptor.validator.ValidatorDescriptor; import org.bonitasoft.studio.validators.descriptor.validator.ValidatorPackage; import org.bonitasoft.studio.validators.descriptor.validator.ValidatorType; import org.bonitasoft.studio.validators.i18n.Messages; import org.bonitasoft.studio.validators.repository.ValidatorSourceRepositorySotre; import org.eclipse.core.databinding.UpdateValueStrategy; import org.eclipse.core.databinding.conversion.Converter; import org.eclipse.core.databinding.validation.IValidator; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.emf.databinding.EMFDataBindingContext; import org.eclipse.emf.databinding.EMFObservables; import org.eclipse.jdt.core.IPackageFragment; import org.eclipse.jdt.core.IPackageFragmentRoot; import org.eclipse.jdt.core.JavaConventions; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.ui.wizards.NewTypeWizardPage; import org.eclipse.jface.databinding.swt.SWTObservables; import org.eclipse.jface.databinding.viewers.ViewersObservables; import org.eclipse.jface.databinding.wizard.WizardPageSupport; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Text; /** * @author Romain Bioteau * */ public class ValidatorWizardPage extends NewTypeWizardPage implements ISelectionChangedListener { private static final int DEFAULT_BUTTON_WIDTH_HINT = 85; protected String packageName; protected String className; protected String displayName = null; private EMFDataBindingContext context; private final ValidatorDescriptor validator; private WizardPageSupport pageSupport; private Button removeButton; private final boolean editMode; protected ValidatorWizardPage(ValidatorDescriptor validator, boolean editMode) { super(true, ValidatorWizardPage.class.getName()); setImageDescriptor(Pics.getWizban()); setTitle(Messages.ValidatorWizardPage_title); setDescription(Messages.ValidatorWizardPage_description); this.validator = validator; this.editMode = editMode; final IRepositoryStore store = RepositoryManager.getInstance() .getRepositoryStore(ValidatorSourceRepositorySotre.class); try { IPackageFragmentRoot root = RepositoryManager.getInstance().getCurrentRepository().getJavaProject() .findPackageFragmentRoot(store.getResource().getFullPath()); setPackageFragmentRoot(root, false); } catch (JavaModelException e) { BonitaStudioLog.error(e); } } @Override public void dispose() { if (pageSupport != null) { pageSupport.dispose(); } if (context != null) { context.dispose(); } super.dispose(); } @Override public void createControl(Composite parent) { Composite mainComposite = new Composite(parent, SWT.NONE); mainComposite.setLayout(new GridLayout(3, false)); context = new EMFDataBindingContext(); createDisplayNameLine(mainComposite); createTypeCombo(mainComposite); createClassAndPackageName(mainComposite); createDependenciesViewer(mainComposite); setControl(mainComposite); } @Override public void setVisible(boolean visible) { super.setVisible(visible); if (visible && pageSupport == null) { pageSupport = WizardPageSupport.create(this, context); } } protected void createTypeCombo(Composite mainComposite) { Label typeLabel = new Label(mainComposite, SWT.NONE); typeLabel.setText(Messages.validatorType); typeLabel.setLayoutData(GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).create()); final ComboViewer typeViewer = new ComboViewer(mainComposite, SWT.BORDER | SWT.READ_ONLY); typeViewer.getCombo().setLayoutData(GridDataFactory.fillDefaults().grab(true, false).span(2, 1).create()); typeViewer.setContentProvider(new ArrayContentProvider()); typeViewer.setLabelProvider(new LabelProvider() { @Override public String getText(Object element) { if (element == ValidatorType.FILED_VALIDATOR) { return Messages.fieldValidator; } else if (element == ValidatorType.PAGE_VALIDATOR) { return Messages.pageValidator; } return super.getText(element); } }); typeViewer.setInput(ValidatorType.values()); typeViewer.getCombo().setEnabled(!editMode); context.bindValue(ViewersObservables.observeSingleSelection(typeViewer), EMFObservables.observeValue(validator, ValidatorPackage.Literals.VALIDATOR_DESCRIPTOR__TYPE)); } protected void createDependenciesViewer(Composite mainComposite) { Label dependencyLabel = new Label(mainComposite, SWT.NONE); dependencyLabel.setText(Messages.dependencies); dependencyLabel.setLayoutData(GridDataFactory.fillDefaults().align(SWT.END, SWT.TOP).create()); final TableViewer viewer = new TableViewer(mainComposite, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION); viewer.getTable().setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create()); viewer.setContentProvider(new ArrayContentProvider()); viewer.addSelectionChangedListener(this); viewer.setLabelProvider(new LabelProvider() { @Override public Image getImage(Object element) { return Pics.getImage("jar.gif", ValidatorPlugin.getDefault()); } }); context.bindValue(ViewersObservables.observeInput(viewer), EMFObservables.observeValue(validator, ValidatorPackage.Literals.VALIDATOR_DESCRIPTOR__DEPENDENCIES)); final Composite buttonComposite = new Composite(mainComposite, SWT.NONE); buttonComposite.setLayoutData(GridDataFactory.fillDefaults().grab(false, true).create()); buttonComposite.setLayout(GridLayoutFactory.fillDefaults().numColumns(1).create()); final Button addButton = new Button(buttonComposite, SWT.FLAT); addButton.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).create()); addButton.setText(Messages.Add); addButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { SelectJarsDialog dialog = new SelectJarsDialog(Display.getDefault().getActiveShell()); if (dialog.open() == Dialog.OK) { for (IRepositoryFileStore jarFile : dialog.getSelectedJars()) { String jar = jarFile.getName(); if (!validator.getDependencies().contains(jar)) { validator.getDependencies().add(jar); } } } } }); removeButton = new Button(buttonComposite, SWT.FLAT); removeButton.setLayoutData( GridDataFactory.fillDefaults().hint(DEFAULT_BUTTON_WIDTH_HINT, SWT.DEFAULT).create()); removeButton.setText(Messages.Remove); removeButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { final IStructuredSelection selection = (IStructuredSelection) viewer.getSelection(); for (Object selected : selection.toList()) { if (selected instanceof String) { validator.getDependencies().remove(selected); } } viewer.refresh(); } }); } private void createDisplayNameLine(Composite mainComposite) { Label displayNameLabel = new Label(mainComposite, SWT.NONE); displayNameLabel.setText(Messages.createValidatorWizardPage_displayNameLabel + " *"); displayNameLabel.setLayoutData(GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).create()); final Text displayNameText = new Text(mainComposite, SWT.BORDER); displayNameText.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).span(2, 1).create()); UpdateValueStrategy targetToModel = new UpdateValueStrategy(); targetToModel.setAfterGetValidator(new IValidator() { @Override public IStatus validate(Object value) { if (value == null || value.toString().isEmpty()) { return new Status(IStatus.ERROR, ValidatorPlugin.PLUGIN_ID, Messages.nameIsEmpty); } return Status.OK_STATUS; } }); context.bindValue(SWTObservables.observeText(displayNameText, SWT.Modify), EMFObservables.observeValue(validator, ValidatorPackage.Literals.VALIDATOR_DESCRIPTOR__NAME), targetToModel, null); } private void createClassAndPackageName(Composite mainComposite) { Label classNameLabel = new Label(mainComposite, SWT.NONE); classNameLabel.setText(Messages.createValidatorWizardPage_classNameLabel + " *"); classNameLabel.setLayoutData(GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).create()); final Text classNameText = new Text(mainComposite, SWT.BORDER); classNameText.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).span(2, 1).create()); final Label packageLabel = new Label(mainComposite, SWT.NONE); packageLabel.setText(Messages.createValidatorWizardPage_packageLabel + " *"); packageLabel.setLayoutData(GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).create()); final Text packageText = new Text(mainComposite, SWT.BORDER); packageText.setLayoutData( GridDataFactory.swtDefaults().align(SWT.FILL, SWT.CENTER).grab(true, false).create()); UpdateValueStrategy packageTargetToModel = new UpdateValueStrategy(); packageTargetToModel.setConverter(new Converter(String.class, String.class) { @Override public Object convert(Object from) { if (from != null) { String packageName = from.toString(); if (classNameText != null && !classNameText.isDisposed()) { return packageName + "." + classNameText.getText(); } } return null; } }); packageTargetToModel.setAfterGetValidator(new IValidator() { @Override public IStatus validate(Object value) { if (!value.toString().isEmpty()) { return JavaConventions.validatePackageName(value.toString(), JavaCore.VERSION_1_6, JavaCore.VERSION_1_6); } else { return new Status(IStatus.ERROR, ValidatorPlugin.PLUGIN_ID, Messages.missingPackageName); } } }); UpdateValueStrategy packageModelToTarget = new UpdateValueStrategy(); packageModelToTarget.setConverter(new Converter(String.class, String.class) { @Override public Object convert(Object from) { if (from != null) { String qualifiedClassname = from.toString(); if (qualifiedClassname.indexOf(".") != -1) { int i = qualifiedClassname.lastIndexOf("."); return qualifiedClassname.subSequence(0, i); } else { return ""; } } return null; } }); packageModelToTarget.setAfterConvertValidator(new IValidator() { @Override public IStatus validate(Object value) { if (value == null || value.toString().isEmpty()) { return new Status(IStatus.ERROR, ValidatorPlugin.PLUGIN_ID, Messages.missingPackageName); } return JavaConventions.validatePackageName(value.toString(), JavaCore.VERSION_1_6, JavaCore.VERSION_1_6); } }); UpdateValueStrategy classTargetToModel = new UpdateValueStrategy(); classTargetToModel.setConverter(new Converter(String.class, String.class) { @Override public Object convert(Object from) { if (from != null) { String className = from.toString(); if (packageText != null && !packageText.isDisposed()) { return packageText.getText() + "." + className; } } return null; } }); classTargetToModel.setAfterGetValidator(new IValidator() { @Override public IStatus validate(Object value) { if (value == null || value.toString().isEmpty()) { return new Status(IStatus.ERROR, ValidatorPlugin.PLUGIN_ID, Messages.missingClassname); } return JavaConventions.validateJavaTypeName(value.toString(), JavaCore.VERSION_1_6, JavaCore.VERSION_1_6); } }); UpdateValueStrategy classModelToTarget = new UpdateValueStrategy(); classModelToTarget.setConverter(new Converter(String.class, String.class) { @Override public Object convert(Object from) { if (from != null) { String qualifiedClassname = from.toString(); if (qualifiedClassname.indexOf(".") != -1) { int i = qualifiedClassname.lastIndexOf("."); return qualifiedClassname.subSequence(i + 1, qualifiedClassname.length()); } else { return qualifiedClassname; } } return null; } }); context.bindValue(SWTObservables.observeText(classNameText, SWT.Modify), EMFObservables.observeValue(validator, ValidatorPackage.Literals.VALIDATOR_DESCRIPTOR__CLASS_NAME), classTargetToModel, classModelToTarget); context.bindValue(SWTObservables.observeText(packageText, SWT.Modify), EMFObservables.observeValue(validator, ValidatorPackage.Literals.VALIDATOR_DESCRIPTOR__CLASS_NAME), packageTargetToModel, packageModelToTarget); final Button browsePackagesButton = new Button(mainComposite, SWT.PUSH); browsePackagesButton.setText(Messages.createValidatorWizardPage_browsePackages); browsePackagesButton.addListener(SWT.Selection, new Listener() { @Override public void handleEvent(Event event) { IPackageFragment selectedPackage = ValidatorWizardPage.this.choosePackage(); if (selectedPackage != null) { packageText.setText(selectedPackage.getElementName()); } } }); } @Override public void selectionChanged(SelectionChangedEvent event) { updateButtons(event.getSelection()); } private void updateButtons(ISelection selection) { if (removeButton != null && !removeButton.isDisposed()) { removeButton.setEnabled(!selection.isEmpty()); } } }