Java tutorial
/******************************************************************************* * Copyright (c) 2011, 2014 Ericsson, cole Polytechnique de Montral * * All rights reserved. This program and the accompanying materials are * made available under the terms of the Eclipse Public License v1.0 which * accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Francois Chouinard - Copied and adapted from NewFolderDialog * Genevive Bastien - Moved the actual copy code to model element's class *******************************************************************************/ package fr.inria.linuxtools.tmf.ui.project.wizards; import java.lang.reflect.InvocationTargetException; import org.eclipse.core.resources.IFolder; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.IWorkspace; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.OperationCanceledException; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Status; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.actions.WorkspaceModifyOperation; import org.eclipse.ui.dialogs.SelectionStatusDialog; import fr.inria.linuxtools.internal.tmf.ui.Activator; import fr.inria.linuxtools.tmf.ui.project.model.TmfExperimentElement; import fr.inria.linuxtools.tmf.ui.project.model.TmfExperimentFolder; /** * Implementation of the copy experiement dialog box. * <p> * * @version 1.0 * @author Francois Chouinard */ public class CopyExperimentDialog extends SelectionStatusDialog { // ------------------------------------------------------------------------ // Members // ------------------------------------------------------------------------ private final TmfExperimentElement fExperiment; private Text fNewExperimentName; private IFolder fExperimentFolder; // ------------------------------------------------------------------------ // Constructor // ------------------------------------------------------------------------ /** * Constructor * * @param shell * The parent shell * @param experiment * The TMF experiment model element */ public CopyExperimentDialog(Shell shell, TmfExperimentElement experiment) { super(shell); fExperiment = experiment; TmfExperimentFolder folder = (TmfExperimentFolder) experiment.getParent(); fExperimentFolder = folder.getResource(); setTitle(Messages.CopyExperimentDialog_DialogTitle); setStatusLineAboveButtons(true); } // ------------------------------------------------------------------------ // Dialog // ------------------------------------------------------------------------ @Override protected Control createDialogArea(Composite parent) { Composite composite = (Composite) super.createDialogArea(parent); composite.setLayout(new GridLayout()); composite.setLayoutData(new GridData(GridData.FILL_BOTH)); createNewExperimentNameGroup(composite); return composite; } private void createNewExperimentNameGroup(Composite parent) { Font font = parent.getFont(); Composite folderGroup = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.numColumns = 2; folderGroup.setLayout(layout); folderGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); // Old experiment name label Label oldExperimentLabel = new Label(folderGroup, SWT.NONE); oldExperimentLabel.setFont(font); oldExperimentLabel.setText(Messages.CopyExperimentDialog_ExperimentName); // Old experiment name field Text oldExperimentName = new Text(folderGroup, SWT.BORDER); GridData data = new GridData(GridData.FILL_HORIZONTAL); data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH; oldExperimentName.setLayoutData(data); oldExperimentName.setFont(font); oldExperimentName.setText(fExperiment.getName()); oldExperimentName.setEnabled(false); // New experiment name label Label newExperimentLabel = new Label(folderGroup, SWT.NONE); newExperimentLabel.setFont(font); newExperimentLabel.setText(Messages.CopyExperimentDialog_ExperimentNewName); // New experiment name entry field fNewExperimentName = new Text(folderGroup, SWT.BORDER); data = new GridData(GridData.FILL_HORIZONTAL); data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH; fNewExperimentName.setLayoutData(data); fNewExperimentName.setFont(font); fNewExperimentName.addListener(SWT.Modify, new Listener() { @Override public void handleEvent(Event event) { validateNewExperimentName(); } }); } private void validateNewExperimentName() { String name = fNewExperimentName.getText(); IWorkspace workspace = fExperimentFolder.getWorkspace(); IStatus nameStatus = workspace.validateName(name, IResource.FOLDER); if ("".equals(name)) { //$NON-NLS-1$ updateStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID, IStatus.ERROR, Messages.Dialog_EmptyNameError, null)); return; } if (!nameStatus.isOK()) { updateStatus(nameStatus); return; } IPath path = new Path(name); if (fExperimentFolder.getFolder(path).exists() || fExperimentFolder.getFile(path).exists()) { updateStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID, IStatus.ERROR, Messages.Dialog_ExistingNameError, null)); return; } updateStatus(new Status(IStatus.OK, Activator.PLUGIN_ID, "")); //$NON-NLS-1$ } // ------------------------------------------------------------------------ // SelectionStatusDialog // ------------------------------------------------------------------------ @Override protected void computeResult() { } @Override public void create() { super.create(); getButton(IDialogConstants.OK_ID).setEnabled(false); } @Override protected void okPressed() { IFolder folder = copyExperiment(fNewExperimentName.getText()); if (folder == null) { return; } setSelectionResult(new IFolder[] { folder }); super.okPressed(); } private IFolder copyExperiment(final String newName) { WorkspaceModifyOperation operation = new WorkspaceModifyOperation() { @Override public void execute(IProgressMonitor monitor) throws CoreException { try { monitor.beginTask("", 1000); //$NON-NLS-1$ if (monitor.isCanceled()) { throw new OperationCanceledException(); } fExperiment.copy(newName, true); if (monitor.isCanceled()) { throw new OperationCanceledException(); } } finally { monitor.done(); } } }; try { PlatformUI.getWorkbench().getProgressService().busyCursorWhile(operation); } catch (InterruptedException exception) { return null; } catch (InvocationTargetException exception) { MessageDialog.openError(getShell(), "", NLS.bind("", exception.getTargetException().getMessage())); //$NON-NLS-1$ //$NON-NLS-2$ return null; } catch (RuntimeException exception) { return null; } return fExperiment.getResource(); } }