Java tutorial
/* * JBoss, Home of Professional Open Source * Copyright 2005, JBoss Inc., and individual contributors as indicated * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software 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 software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.hibernate.eclipse.console.utils; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.debug.internal.ui.stringsubstitution.StringVariableLabelProvider; import org.eclipse.jdt.core.IJavaElement; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.IPackageFragment; import org.eclipse.jdt.core.IType; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.core.search.IJavaSearchScope; import org.eclipse.jdt.core.search.SearchEngine; import org.eclipse.jdt.internal.ui.dialogs.PackageSelectionDialog; import org.eclipse.jdt.internal.ui.util.BusyIndicatorRunnableContext; import org.eclipse.jdt.ui.IJavaElementSearchConstants; import org.eclipse.jdt.ui.JavaElementLabelProvider; import org.eclipse.jdt.ui.JavaUI; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.viewers.IFilter; import org.eclipse.jface.viewers.ILabelProvider; import org.eclipse.jface.window.Window; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.dialogs.ElementListSelectionDialog; import org.eclipse.ui.dialogs.FilteredList; import org.eclipse.ui.dialogs.SelectionDialog; import org.hibernate.eclipse.console.HibernateConsolePlugin; /** * @author max * */ @SuppressWarnings("restriction") public class DialogSelectionHelper extends org.hibernate.eclipse.console.utils.xpl.DialogSelectionHelper { /** * Realize a Java Project selection dialog and return the first selected project, * or null if there was none. */ public static IJavaProject chooseJavaProject(Shell shell, IJavaProject initialSelection, String title, String description) { IJavaProject[] projects; try { projects = JavaCore.create(ResourcesPlugin.getWorkspace().getRoot()).getJavaProjects(); } catch (JavaModelException e) { HibernateConsolePlugin.getDefault().log(e.getStatus()); projects = new IJavaProject[0]; } ILabelProvider labelProvider = new JavaElementLabelProvider(JavaElementLabelProvider.SHOW_DEFAULT); ElementListSelectionDialog dialog = new ElementListSelectionDialog(shell, labelProvider); dialog.setTitle(title); dialog.setMessage(description); dialog.setElements(projects); IJavaProject javaProject = initialSelection; if (javaProject != null) { dialog.setInitialSelections(new Object[] { javaProject }); } if (dialog.open() == Window.OK) { return (IJavaProject) dialog.getFirstResult(); } return initialSelection; } /** * Realize a Persistence Unit selection dialog and return the first selected persistence unit, * or null if there was none. */ public static String choosePersistenceUnit(Shell shell, String initialSelection, String title, String description, IJavaProject javaProject) { String[] availablePersistenceUnit = ProjectUtils.availablePersistenceUnits(javaProject); ILabelProvider labelProvider = new StringVariableLabelProvider(); ElementListSelectionDialog dialog = new ElementListSelectionDialog(shell, labelProvider); dialog.setTitle(title); dialog.setMessage(description); dialog.setElements(availablePersistenceUnit); String persistenceUnit = initialSelection; if (persistenceUnit != null) { dialog.setInitialSelections(new Object[] { persistenceUnit }); } if (dialog.open() == Window.OK) { return (String) dialog.getFirstResult(); } return initialSelection; } static public String chooseImplementation(String supertype, String initialSelection, String title, Shell shell) { SelectionDialog dialog = null; try { final IJavaSearchScope scope = SearchEngine.createWorkspaceScope(); // TODO: limit to a certain implementor dialog = JavaUI.createTypeDialog(shell, PlatformUI.getWorkbench().getProgressService(), scope, IJavaElementSearchConstants.CONSIDER_CLASSES, false, supertype); } catch (JavaModelException jme) { return null; } dialog.setTitle(title); dialog.setMessage(title); if (dialog.open() == IDialogConstants.CANCEL_ID) return null; Object[] types = dialog.getResult(); if (types != null && types.length > 0) { IType type = (IType) types[0]; return type.getFullyQualifiedName('.'); } return null; } public static IPackageFragment choosePackage(Shell shell, IJavaElement[] javaProjects, final IFilter filter, String title, String message) { BusyIndicatorRunnableContext context = new BusyIndicatorRunnableContext(); IJavaSearchScope scope = SearchEngine.createJavaSearchScope(javaProjects, IJavaSearchScope.SOURCES | IJavaSearchScope.REFERENCED_PROJECTS); PackageSelectionDialog packageSelectionDialog = new PackageSelectionDialog(shell, context, PackageSelectionDialog.F_HIDE_DEFAULT_PACKAGE | PackageSelectionDialog.F_HIDE_EMPTY_INNER, scope) { @Override protected FilteredList createFilteredList(Composite parent) { FilteredList list = super.createFilteredList(parent); if (filter != null) { list.setFilterMatcher(new FilteredList.FilterMatcher() { @Override public void setFilter(String pattern, boolean ignoreCase, boolean ignoreWildCards) { } @Override public boolean match(Object element) { return filter.select(element); } }); } return list; } }; packageSelectionDialog.setTitle(title); packageSelectionDialog.setMessage(message); if (packageSelectionDialog.open() == Window.OK) { return (IPackageFragment) packageSelectionDialog.getResult()[0]; } return null; } }