Java tutorial
/******************************************************************************* * Copyright (c) 2009 Borland Software Corporation and others. * * 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: * Borland Software Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.m2m.internal.qvt.oml.runtime.ui.ant; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.debug.core.ILaunchConfiguration; import org.eclipse.debug.core.ILaunchConfigurationType; import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy; import org.eclipse.debug.core.ILaunchManager; import org.eclipse.debug.ui.DebugUITools; import org.eclipse.debug.ui.IDebugUIConstants; import org.eclipse.debug.ui.ILaunchGroup; import org.eclipse.jface.viewers.ILabelProvider; import org.eclipse.jface.viewers.ILabelProviderListener; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.ITreeContentProvider; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.jface.window.Window; import org.eclipse.m2m.internal.qvt.oml.runtime.launch.QvtLaunchConfigurationDelegate; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.model.WorkbenchViewerComparator; public class ChooseDataSourcePage extends AbstractCompositeWizardPage { protected ChooseDataSourcePage() { super("dataSourcePage"); //$NON-NLS-1$ setTitle(Messages.SourcePage_title1); setDescription(Messages.SourcePage_descr1); } @Override public void setVisible(boolean visible) { if (visible && getSelectedLaunchConfiguration() == null) { myViewer.setSelection(new IStructuredSelection() { public Object getFirstElement() { Object[] array = toArray(); if (array.length == 0) { return null; } return array[0]; } public Iterator<Object> iterator() { return toList().iterator(); } public int size() { return toArray().length; } public Object[] toArray() { return ((ITreeContentProvider) myViewer.getContentProvider()).getElements(null); } public List<Object> toList() { Object[] array = toArray(); List<Object> list = new ArrayList<Object>(array.length); for (Object o : array) { list.add(o); } return list; } public boolean isEmpty() { return toArray().length > 0; } }); } super.setVisible(visible); } @Override protected void doCreateControl(Composite parent) { myViewer = new TreeViewer(parent); GridData data = new GridData(SWT.FILL, SWT.FILL, true, true); myViewer.getControl().setLayoutData(data); myViewer.setLabelProvider(new TypeNamesWithTaskTypes(DebugUITools.newDebugModelPresentation())); myViewer.setComparator(new WorkbenchViewerComparator()); myViewer.setContentProvider( new LaunchConfigurationTreeContentProvider(ILaunchManager.RUN_MODE, parent.getShell())); myViewer.addFilter(new AntFilter()); myViewer.setInput(ResourcesPlugin.getWorkspace().getRoot()); myViewer.expandAll(); myViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { getContainer().updateButtons(); myConfigButton.setEnabled(getSelectedConfigType() != null); } }); myConfigButton = new Button(parent, SWT.NULL); myConfigButton.setText(Messages.SourcePage_configBtn); myConfigButton.setEnabled(false); myConfigButton.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { ILaunchConfigurationType configType = getSelectedConfigType(); if (configType == null) { return; } try { if ((myCreatedConfig == null) || (!configType.equals(myCreatedConfig.getType()))) { ILaunchConfigurationWorkingCopy wc = configType.newInstance(null, "qvto.antTask.newConfiguration"); //$NON-NLS-1$ wc.setAttribute(IDebugUIConstants.ATTR_PRIVATE, true); myCreatedConfig = wc.doSave(); } ILaunchGroup launchGroup = DebugUITools.getLaunchGroup(myCreatedConfig, ILaunchManager.RUN_MODE); if (DebugUITools.openLaunchConfigurationPropertiesDialog(getShell(), myCreatedConfig, launchGroup.getIdentifier()) == Window.OK) { myConfig = myCreatedConfig; if (canFlipToNextPage()) { getContainer().showPage(getNextPage()); myConfig = null; } } getContainer().updateButtons(); } catch (CoreException e1) { e1.printStackTrace(); } } public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } }); Composite container = new Composite(parent, SWT.NULL); container.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); GridLayout layout = new GridLayout(); container.setLayout(layout); layout.numColumns = 2; layout.verticalSpacing = 9; } @Override public boolean canFlipToNextPage() { setErrorMessage(null); myTaskModel = null; ILaunchConfiguration conf = getSelectedLaunchConfiguration(); if (conf == null) { return false; } try { myTaskModel = new TaskModel(conf, QVTO_ANTTASK_NAME); } catch (Exception e) { setErrorMessage(e.getMessage()); return false; } return true; } public TaskModel getTaskModel() { return myTaskModel; } private ILaunchConfiguration getSelectedLaunchConfiguration() { if (myConfig != null) { return myConfig; } ISelection selection = myViewer.getSelection(); if (selection instanceof IStructuredSelection) { IStructuredSelection ssel = (IStructuredSelection) selection; Object firstElement = ssel.getFirstElement(); if (firstElement instanceof ILaunchConfiguration) { return (ILaunchConfiguration) firstElement; } } return null; } private ILaunchConfigurationType getSelectedConfigType() { ISelection selection = myViewer.getSelection(); if (selection instanceof IStructuredSelection) { IStructuredSelection ssel = (IStructuredSelection) selection; Object firstElement = ssel.getFirstElement(); if (firstElement instanceof ILaunchConfigurationType) { return (ILaunchConfigurationType) firstElement; } if (firstElement instanceof ILaunchConfiguration) { try { return ((ILaunchConfiguration) firstElement).getType(); } catch (CoreException e) { } } } return null; } private class AntFilter extends ViewerFilter { @Override public boolean select(Viewer viewer, Object parentElement, Object element) { if (element instanceof ILaunchConfigurationType) { ILaunchConfigurationType type = (ILaunchConfigurationType) element; return isTypeSupported(type); } if (element instanceof ILaunchConfiguration) { ILaunchConfiguration config = (ILaunchConfiguration) element; boolean priv = false; try { priv = config.getAttribute(IDebugUIConstants.ATTR_PRIVATE, false); } catch (CoreException e) { // Ignored } if (priv) { return false; } ILaunchConfigurationType type = null; try { type = config.getType(); } catch (CoreException e) { return false; } return isTypeSupported(type); } return false; } private boolean isTypeSupported(ILaunchConfigurationType type) { return QvtLaunchConfigurationDelegate.LAUNCH_CONFIGURATION_TYPE_ID.equals(type.getIdentifier()); } } private static class TypeNamesWithTaskTypes implements ILabelProvider { TypeNamesWithTaskTypes(ILabelProvider dmp) { myWrapped = dmp; } public Image getImage(Object element) { return myWrapped.getImage(element); } public String getText(Object element) { String suffix = ""; //$NON-NLS-1$ if (element instanceof ILaunchConfigurationType) { ILaunchConfigurationType type = (ILaunchConfigurationType) element; suffix = " (" + getTaskName(type) + ")"; //$NON-NLS-1$//$NON-NLS-2$ } return myWrapped.getText(element) + suffix; } private String getTaskName(ILaunchConfigurationType type) { return QVTO_ANTTASK_NAME; } public void addListener(ILabelProviderListener listener) { myWrapped.addListener(listener); } public void dispose() { myWrapped.dispose(); } public boolean isLabelProperty(Object element, String property) { return myWrapped.isLabelProperty(element, property); } public void removeListener(ILabelProviderListener listener) { myWrapped.removeListener(listener); } private final ILabelProvider myWrapped; } private TreeViewer myViewer; private Button myConfigButton; private ILaunchConfiguration myConfig; private ILaunchConfiguration myCreatedConfig; private TaskModel myTaskModel; private static final String QVTO_ANTTASK_NAME = "qvto:transformation"; //$NON-NLS-1$ }