Java tutorial
/** * Copyright (C) 2012 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.actors.ui.wizard.page; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.SortedSet; import java.util.TreeSet; import org.bonitasoft.studio.actors.i18n.Messages; import org.bonitasoft.studio.actors.model.organization.Group; import org.bonitasoft.studio.actors.model.organization.Organization; import org.bonitasoft.studio.actors.model.organization.OrganizationFactory; import org.bonitasoft.studio.common.jface.TableColumnSorter; import org.bonitasoft.studio.model.actormapping.ActorMapping; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.beans.PojoObservables; import org.eclipse.core.databinding.observable.set.IObservableSet; import org.eclipse.core.databinding.validation.MultiValidator; import org.eclipse.core.databinding.validation.ValidationStatus; import org.eclipse.core.runtime.IStatus; import org.eclipse.jface.databinding.viewers.ViewersObservables; import org.eclipse.jface.databinding.wizard.WizardPageSupport; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ColumnLabelProvider; import org.eclipse.jface.viewers.ColumnWeightData; import org.eclipse.jface.viewers.TableLayout; import org.eclipse.jface.viewers.TableViewerColumn; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.TableColumn; /** * @author Romain Bioteau * */ public class SelectGroupMappingWizardPage extends SelectOrganizationWizardPage { private final ActorMapping mapping; private final SortedSet<String> availableGroups = new TreeSet<String>(); private final SortedSet<String> selectedGroups; private List<Group> groups; private CheckboxTableViewer availableGroupViewer; // validation group selection private DataBindingContext context; public SelectGroupMappingWizardPage(ActorMapping mapping) { super(); setTitle(Messages.selectGroupTitle); setDescription(Messages.selectGroupDescription); this.mapping = mapping; selectedGroups = new TreeSet<String>(this.mapping.getGroups().getGroup()); } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite) */ @Override public void createControl(Composite parent) { super.createControl(parent); final Composite mainComposite = (Composite) getControl(); Composite viewersComposite = new Composite(mainComposite, SWT.NONE); viewersComposite.setLayoutData( GridDataFactory.fillDefaults().grab(true, true).span(2, 1).hint(SWT.DEFAULT, 250).create()); viewersComposite.setLayout(GridLayoutFactory.swtDefaults().numColumns(1).margins(0, 0) .extendedMargins(0, 0, 10, 0).equalWidth(false).create()); availableGroupViewer = CheckboxTableViewer.newCheckList(viewersComposite, SWT.BORDER | SWT.FULL_SELECTION | SWT.V_SCROLL); availableGroupViewer.getTable().setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create()); availableGroupViewer.getTable().setHeaderVisible(true); availableGroupViewer.setContentProvider(new ArrayContentProvider()); TableLayout layout = new TableLayout(); layout.addColumnData(new ColumnWeightData(100)); availableGroupViewer.getTable().setLayout(layout); TableViewerColumn columnViewer = new TableViewerColumn(availableGroupViewer, SWT.NONE); TableColumn usernameColumn = columnViewer.getColumn(); usernameColumn.setText(Messages.groupName); columnViewer.setLabelProvider(new ColumnLabelProvider()); TableColumnSorter sorter = new TableColumnSorter(availableGroupViewer); sorter.setColumn(usernameColumn); availableGroupViewer.setInput(availableGroups); availableGroupViewer.setCheckedElements(selectedGroups.toArray()); context = new DataBindingContext(); final IObservableSet checkedElementsObservable = ViewersObservables .observeCheckedElements(availableGroupViewer, String.class); final MultiValidator notEmptyValidator = new MultiValidator() { @Override protected IStatus validate() { if (groupSelectionIsValid(checkedElementsObservable)) { return ValidationStatus.ok(); } return ValidationStatus.error(Messages.errorSelectionGroups); } }; context.addValidationStatusProvider(notEmptyValidator); context.bindSet(checkedElementsObservable, PojoObservables.observeSet(this, "selectedGroups")); WizardPageSupport.create(this, context); setControl(mainComposite); } /** Return false if a group and one of its child is selected. Else return true. * @param checkedElementsObservable * * @return */ private boolean groupSelectionIsValid(IObservableSet checkedElementsObservable) { List<Object> list1 = new ArrayList<Object>(); List<Object> list2 = new ArrayList<Object>(); Iterator<?> it = checkedElementsObservable.iterator(); while (it.hasNext()) { Object obj = it.next(); list1.add(obj); list2.add(obj); } for (Object o1 : list1) { String s1 = (String) o1; for (Object o2 : list2) { String s2 = (String) o2; if (!s1.equals(s2) && (s2.startsWith(s1) || s1.startsWith(s2))) { return false; } } } return true; } protected void removedGroup(List<String> removedGroups) { selectedGroups.removeAll(removedGroups); for (Group g : groups) { if (removedGroups.contains(GroupContentProvider.getGroupPath(g)) && !availableGroups.contains(GroupContentProvider.getGroupPath(g))) { availableGroups.add(GroupContentProvider.getGroupPath(g)); } } mapping.getGroups().getGroup().clear(); mapping.getGroups().getGroup().addAll(selectedGroups); } protected void selectedGroup(List<String> selectedGroup) { availableGroups.removeAll(selectedGroup); selectedGroups.addAll(selectedGroup); mapping.getGroups().getGroup().clear(); mapping.getGroups().getGroup().addAll(selectedGroups); } @Override protected void refreshOrganization(Organization organization) { if (organization != null) { if (organization.getGroups() == null) { organization.setGroups(OrganizationFactory.eINSTANCE.createGroups()); } groups = organization.getGroups().getGroup(); availableGroups.clear(); for (Group g : groups) { String groupPath = GroupContentProvider.getGroupPath(g); if (!selectedGroups.contains(groupPath)) { availableGroups.add(groupPath); } } availableGroups.addAll(selectedGroups); if (availableGroupViewer != null) { availableGroupViewer.setInput(availableGroups); availableGroupViewer.setCheckedElements(selectedGroups.toArray()); } } } public Object[] getSelectedGroups() { return availableGroupViewer.getCheckedElements(); } }