Java tutorial
/******************************************************************************* * Copyright (c) 2005 IBM 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: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.bpel.ui.dialogs; import java.text.MessageFormat; import org.eclipse.bpel.model.resource.BPELResourceSetImpl; import org.eclipse.bpel.model.util.BPELUtils; import org.eclipse.bpel.ui.BPELUIPlugin; import org.eclipse.bpel.ui.IBPELUIConstants; import org.eclipse.bpel.ui.Messages; import org.eclipse.bpel.ui.details.providers.ModelLabelProvider; import org.eclipse.bpel.ui.details.providers.ModelTreeLabelProvider; import org.eclipse.bpel.ui.details.providers.PartnerLinkTypeTreeContentProvider; import org.eclipse.bpel.ui.details.providers.VariableTypeTreeContentProvider; import org.eclipse.bpel.ui.details.providers.WSILContentProvider; import org.eclipse.bpel.ui.util.filedialog.FileSelectionGroup; import org.eclipse.bpel.wsil.model.inspection.Description; import org.eclipse.bpel.wsil.model.inspection.Inspection; import org.eclipse.bpel.wsil.model.inspection.Link; import org.eclipse.bpel.wsil.model.inspection.Name; import org.eclipse.bpel.wsil.model.inspection.Service; import org.eclipse.bpel.wsil.model.inspection.TypeOfAbstract; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IResource; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.emf.common.util.URI; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.ecore.resource.Resource; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.resource.JFaceResources; 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.ViewerComparator; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.swt.SWT; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.events.KeyListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; 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.swt.widgets.Control; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.FileDialog; import org.eclipse.swt.widgets.Group; 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.swt.widgets.Tree; import org.eclipse.ui.dialogs.SelectionStatusDialog; import org.eclipse.ui.part.DrillDownComposite; /** * Browse for complex/simple types available in the process and choose * that simple type. * */ public class SchemaImportDialog extends SelectionStatusDialog { /** Browse local resource */ protected final static int BID_BROWSE_RESOURCE = IDialogConstants.CLIENT_ID + 1; /* Button id for browsing URLs */ protected final static int BID_BROWSE_URL = IDialogConstants.CLIENT_ID + 2; /* Button id for browse files */ protected final static int BID_BROWSE_FILE = IDialogConstants.CLIENT_ID + 3; /* Browse button */ protected static final int BID_BROWSE = IDialogConstants.CLIENT_ID + 4; /* button id for browsing WSIL */ protected static final int BID_BROWSE_WSIL = IDialogConstants.CLIENT_ID + 5; /* The import source setting, remembered in the dialog settings */ private static final String IMPORT_KIND = "ImportKind"; //$NON-NLS-1$ private static final String EMPTY = ""; //$NON-NLS-1$ private String[] FILTER_EXTENSIONS = { IBPELUIConstants.EXTENSION_STAR_DOT_XSD, IBPELUIConstants.EXTENSION_STAR_DOT_WSDL, IBPELUIConstants.EXTENSION_STAR_DOT_ANY }; private String[] FILTER_NAMES = { IBPELUIConstants.EXTENSION_XSD_NAME, IBPELUIConstants.EXTENSION_WSDL_NAME, IBPELUIConstants.EXTENSION_ANY_NAME }; protected EObject modelObject; protected Tree fTree; protected TreeViewer fTreeViewer; Text fLocation; private Composite fLocationComposite; FileSelectionGroup fResourceComposite; // Import from WSIL constructs private Composite fWSILComposite; protected TreeViewer fWSILTreeViewer; protected Tree fWSILTree; protected Text filterText; String fFilter = ""; //$NON-NLS-1$ Button fBrowseButton; private Group fGroup; private IDialogSettings fSettings; private int KIND = BID_BROWSE_RESOURCE; private String fStructureTitle; private ITreeContentProvider fTreeContentProvider; protected Object fInput; protected BPELResourceSetImpl fHackedResourceSet; protected String fResourceKind = IBPELUIConstants.EXTENSION_XSD; long fRunnableStart; URI fRunnableLoadURI; Job fLoaderJob; IPreferenceStore fPrefStore = BPELUIPlugin.INSTANCE.getPreferenceStore(); String fBasePath = fPrefStore.getString(IBPELUIConstants.PREF_WSIL_URL); // The WSIL radio box is turned off if the WSIL document is not set in the preferences. Button fBtnWSIL; /** * Create a brand new shiny Schema Import Dialog. * * @param parent */ public SchemaImportDialog(Shell parent) { super(parent); setStatusLineAboveButtons(true); int shellStyle = getShellStyle(); setShellStyle(shellStyle | SWT.MAX | SWT.RESIZE); fSettings = BPELUIPlugin.INSTANCE.getDialogSettingsFor(this); try { KIND = fSettings.getInt(IMPORT_KIND); } catch (java.lang.NumberFormatException nfe) { KIND = BID_BROWSE_RESOURCE; } setDialogBoundsSettings(fSettings, getDialogBoundsStrategy()); configureAsSchemaImport(); } /** * Create a brand new shiny Schema Import Dialog * * @param parent shell to use * @param eObject the model object to use as reference */ public SchemaImportDialog(Shell parent, EObject eObject) { this(parent); this.modelObject = eObject; setTitle(Messages.SchemaImportDialog_2); fHackedResourceSet = BPELUtils.slightlyHackedResourceSet(eObject); } /** * * @see Dialog#createDialogArea(Composite) * * @param parent the parent composite to use * @return the composite it created to be used in the dialog area. */ @Override public Control createDialogArea(Composite parent) { Composite contents = (Composite) super.createDialogArea(parent); createImportLocation(contents); createImportStructure(contents); buttonPressed(KIND, true); return contents; } @Override protected void buttonPressed(int buttonId) { switch (buttonId) { case BID_BROWSE: FileDialog fileDialog = new FileDialog(getShell()); fileDialog.setFilterExtensions(FILTER_EXTENSIONS); fileDialog.setFilterNames(FILTER_NAMES); String path = fileDialog.open(); if (path == null) { return; } fLocation.setText(path); attemptLoad(path); break; case IDialogConstants.CANCEL_ID: if (fLoaderJob != null) { if (fLoaderJob.getState() == Job.RUNNING) { fLoaderJob.cancel(); } } break; } super.buttonPressed(buttonId); } protected void buttonPressed(int id, boolean checked) { if (id == BID_BROWSE_FILE || id == BID_BROWSE_RESOURCE || id == BID_BROWSE_URL || id == BID_BROWSE_WSIL) { if (checked == false) { return; } setVisibleControl(fResourceComposite, id == BID_BROWSE_RESOURCE); setVisibleControl(fLocationComposite, id == BID_BROWSE_URL || id == BID_BROWSE_FILE); setVisibleControl(fWSILComposite, id == BID_BROWSE_WSIL); fBrowseButton.setEnabled((id == BID_BROWSE_FILE) || (id == BID_BROWSE_WSIL)); fLocation.setText(EMPTY); markEmptySelection(); KIND = id; fSettings.put(IMPORT_KIND, KIND); fGroup.getParent().layout(true); } } protected void setVisibleControl(Control c, boolean b) { Object layoutData = c.getLayoutData(); if (layoutData instanceof GridData) { GridData data = (GridData) layoutData; data.exclude = !b; } c.setVisible(b); } /** * Create the dialog. * */ @Override public void create() { super.create(); buttonPressed(KIND, true); } protected Button createRadioButton(Composite parent, String label, int id, boolean checked) { Button button = new Button(parent, SWT.RADIO); button.setText(label); button.setFont(JFaceResources.getDialogFont()); button.setData(new Integer(id)); button.setSelection(checked); button.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent event) { Button b = (Button) event.widget; int bid = ((Integer) b.getData()).intValue(); buttonPressed(bid, b.getSelection()); } }); return button; } protected void createImportLocation(Composite parent) { fGroup = new Group(parent, SWT.SHADOW_ETCHED_IN); fGroup.setText(Messages.SchemaImportDialog_4); GridLayout layout = new GridLayout(1, true); GridData data = new GridData(); data.grabExcessVerticalSpace = false; data.grabExcessHorizontalSpace = true; data.horizontalAlignment = GridData.FILL; data.verticalAlignment = GridData.FILL; fGroup.setLayout(layout); fGroup.setLayoutData(data); Composite container = new Composite(fGroup, SWT.NONE); layout = new GridLayout(); layout.makeColumnsEqualWidth = true; layout.numColumns = 4; container.setLayout(layout); data = new GridData(); data.grabExcessVerticalSpace = false; data.grabExcessHorizontalSpace = true; data.horizontalAlignment = GridData.FILL; data.verticalAlignment = GridData.CENTER; container.setLayoutData(data); createRadioButton(container, Messages.SchemaImportDialog_5, BID_BROWSE_RESOURCE, KIND == BID_BROWSE_RESOURCE); createRadioButton(container, Messages.SchemaImportDialog_6, BID_BROWSE_FILE, KIND == BID_BROWSE_FILE); createRadioButton(container, Messages.SchemaImportDialog_7, BID_BROWSE_URL, KIND == BID_BROWSE_URL); // Add WSIL option fBtnWSIL = createRadioButton(container, Messages.SchemaImportDialog_15, BID_BROWSE_WSIL, KIND == BID_BROWSE_WSIL); // Create location variant fLocationComposite = new Composite(fGroup, SWT.NONE); layout = new GridLayout(); layout.numColumns = 3; fLocationComposite.setLayout(layout); data = new GridData(); data.grabExcessVerticalSpace = true; data.grabExcessHorizontalSpace = true; data.horizontalAlignment = GridData.FILL; data.verticalAlignment = GridData.FILL; fLocationComposite.setLayoutData(data); Label location = new Label(fLocationComposite, SWT.NONE); location.setText(Messages.SchemaImportDialog_8); fLocation = new Text(fLocationComposite, SWT.BORDER); fLocation.setText(EMPTY); data = new GridData(); data.grabExcessVerticalSpace = false; data.grabExcessHorizontalSpace = true; data.horizontalAlignment = GridData.FILL; data.verticalAlignment = GridData.FILL; fLocation.setLayoutData(data); fLocation.addListener(SWT.FocusOut, new Listener() { public void handleEvent(Event event) { String loc = fLocation.getText(); if (loc.length() > 0) { attemptLoad(loc); } } }); fLocation.addKeyListener(new KeyListener() { public void keyPressed(KeyEvent event) { if (event.keyCode == SWT.CR) { attemptLoad(fLocation.getText()); event.doit = false; } } public void keyReleased(KeyEvent e) { return; } }); fBrowseButton = createButton(fLocationComposite, BID_BROWSE, Messages.SchemaImportDialog_9, false); // End of location variant // Start Resource Variant fResourceComposite = new FileSelectionGroup(fGroup, new Listener() { public void handleEvent(Event event) { IResource resource = fResourceComposite.getSelectedResource(); if (resource != null && resource.getType() == IResource.FILE) { // only attempt to load a resource which is not a container attemptLoad((IFile) resource); return; } markEmptySelection(); } }, Messages.SchemaImportDialog_10, IBPELUIConstants.EXTENSION_DOT_XSD + "," + IBPELUIConstants.EXTENSION_DOT_WSDL); //$NON-NLS-1$ TreeViewer viewer = fResourceComposite.getTreeViewer(); viewer.setAutoExpandLevel(2); // End resource variant // create WSIL UI widgets createWSILStructure(fGroup); } protected Object createWSILStructure(Composite parent) { fWSILComposite = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.marginWidth = 0; fWSILComposite.setLayout(layout); GridData data = new GridData(); data.grabExcessVerticalSpace = true; data.grabExcessHorizontalSpace = true; data.horizontalAlignment = GridData.FILL; data.verticalAlignment = GridData.FILL; data.minimumHeight = 220; fWSILComposite.setLayoutData(data); Label location = new Label(fWSILComposite, SWT.NONE); location.setText(Messages.SchemaImportDialog_16); data = new GridData(); data.grabExcessHorizontalSpace = true; data.horizontalAlignment = SWT.LEFT; location.setLayoutData(data); filterText = new Text(fWSILComposite, SWT.BORDER); data = new GridData(GridData.FILL_HORIZONTAL); filterText.setLayoutData(data); filterText.addKeyListener(new KeyListener() { public void keyPressed(KeyEvent e) { } public void keyReleased(KeyEvent e) { // set the value of the filter. fFilter = filterText.getText().trim().toLowerCase(); if (fFilter.length() > 0) { /* for the time being, only filter 3 levels deep * since link references within WSIL are rare at * this time. when adoption of WSIL directories * take off, this needs to be rehashed */ fWSILTreeViewer.expandToLevel(3); } fWSILTreeViewer.refresh(); e.doit = false; } }); DrillDownComposite wsilTreeComposite = new DrillDownComposite(fWSILComposite, SWT.BORDER); layout = new GridLayout(); layout.marginWidth = 0; layout.marginHeight = 0; layout.verticalSpacing = 0; wsilTreeComposite.setLayout(layout); data = new GridData(); data.grabExcessVerticalSpace = true; data.grabExcessHorizontalSpace = true; data.horizontalAlignment = GridData.FILL; data.verticalAlignment = GridData.FILL; wsilTreeComposite.setLayoutData(data); // Tree viewer for variable structure ... fWSILTree = new Tree(wsilTreeComposite, SWT.NONE); data = new GridData(); data.grabExcessVerticalSpace = true; data.grabExcessHorizontalSpace = true; data.horizontalAlignment = GridData.FILL; data.verticalAlignment = GridData.FILL; data.minimumHeight = 200; fWSILTree.setLayoutData(data); fWSILTreeViewer = new TreeViewer(fWSILTree); fWSILTreeViewer.setContentProvider(new WSILContentProvider()); fWSILTreeViewer.setLabelProvider(new ModelLabelProvider()); Object wsilDoc = attemptLoad(URI.createURI(fBasePath), IBPELUIConstants.EXTENSION_WSIL); fWSILTreeViewer.setInput(wsilDoc); if (wsilDoc == null || wsilDoc instanceof Throwable) { fBtnWSIL.setEnabled(false); // that's always available. KIND = BID_BROWSE_RESOURCE; } // set default tree expansion to the 2nd level fWSILTreeViewer.expandToLevel(2); fWSILTreeViewer.addFilter(new TreeFilter()); fWSILTreeViewer.setComparator(new WSILViewerComparator()); wsilTreeComposite.setChildTree(fWSILTreeViewer); fWSILTreeViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { // TODO Auto-generated method stub IStructuredSelection sel = (IStructuredSelection) event.getSelection(); if (sel.getFirstElement() instanceof Service) { Service serv = (Service) sel.getFirstElement(); Description descr = serv.getDescription().get(0); attemptLoad(descr.getLocation()); } else { markEmptySelection(); } } }); // end tree viewer for variable structure return fWSILComposite; } protected Object createImportStructure(Composite parent) { Label location = new Label(parent, SWT.NONE); location.setText(fStructureTitle); // Tree viewer for variable structure ... fTree = new Tree(parent, SWT.BORDER); VariableTypeTreeContentProvider variableContentProvider = new VariableTypeTreeContentProvider(true, true); fTreeViewer = new TreeViewer(fTree); fTreeViewer .setContentProvider(fTreeContentProvider != null ? fTreeContentProvider : variableContentProvider); fTreeViewer.setLabelProvider(new ModelTreeLabelProvider()); fTreeViewer.setInput(null); fTreeViewer.setAutoExpandLevel(3); // end tree viewer for variable structure GridData data = new GridData(); data.grabExcessVerticalSpace = true; data.grabExcessHorizontalSpace = true; data.horizontalAlignment = GridData.FILL; data.verticalAlignment = GridData.FILL; data.minimumHeight = 200; fTree.setLayoutData(data); return fTree; } Object attemptLoad(URI uri, String kind) { Resource resource = null; try { resource = fHackedResourceSet.getResource(uri, true, kind); } catch (Throwable t) { // BPELUIPlugin.log(t); return t; } if (resource.getErrors().isEmpty() && resource.isLoaded()) { return resource.getContents().get(0); } return null; } Object attemptLoad(URI uri) { return attemptLoad(uri, fResourceKind); } void attemptLoad(IFile file) { attemptLoad(file.getFullPath().toString()); } void attemptLoad(String path) { if (fLoaderJob != null) { if (fLoaderJob.getState() == Job.RUNNING) { fLoaderJob.cancel(); } } updateStatus(Status.OK_STATUS); // empty paths are ignored if (path.length() == 0) { return; } URI uri = convertToURI(path); if (uri == null) { return; } if (uri.isRelative()) { // construct absolute path String absolutepath = fBasePath.substring(0, fBasePath.lastIndexOf('/') + 1) + path; uri = URI.createURI(absolutepath); } fRunnableLoadURI = uri; final String msg = MessageFormat.format(Messages.SchemaImportDialog_17, fRunnableLoadURI); fLoaderJob = new Job(msg) { @Override protected IStatus run(IProgressMonitor monitor) { monitor.beginTask(msg, 1); fInput = attemptLoad(fRunnableLoadURI); monitor.worked(1); if (fBrowseButton != null && fBrowseButton.isDisposed() == false) { fBrowseButton.getDisplay().asyncExec(new Runnable() { public void run() { loadDone(); } }); } return Status.OK_STATUS; } }; fLoaderJob.schedule(); fRunnableStart = System.currentTimeMillis(); updateStatus(new Status(IStatus.INFO, BPELUIPlugin.INSTANCE.getID(), 0, msg, null)); } @SuppressWarnings("boxing") void loadDone() { long elapsed = System.currentTimeMillis() - fRunnableStart; if (fInput == null || fInput instanceof Throwable) { markEmptySelection(); updateStatus(new Status(IStatus.ERROR, BPELUIPlugin.INSTANCE.getID(), 0, MessageFormat.format(Messages.SchemaImportDialog_19, fRunnableLoadURI, elapsed), (Throwable) fInput)); fInput = null; } else { updateStatus(new Status(IStatus.INFO, BPELUIPlugin.INSTANCE.getID(), 0, MessageFormat.format(Messages.SchemaImportDialog_18, fRunnableLoadURI, elapsed), null)); fTreeViewer.setInput(fInput); fTree.getVerticalBar().setSelection(0); } } void markEmptySelection() { updateStatus(Status.OK_STATUS); updateOK(false); fTreeViewer.setInput(null); } private URI convertToURI(String path) { try { switch (KIND) { case BID_BROWSE_FILE: return URI.createFileURI(path); case BID_BROWSE_RESOURCE: return URI.createPlatformResourceURI(path); case BID_BROWSE_WSIL: //return URI.createFileURI( path ); case BID_BROWSE_URL: return URI.createURI(path); default: return null; } } catch (Exception ex) { updateStatus(new Status(IStatus.ERROR, BPELUIPlugin.INSTANCE.getID(), 0, Messages.SchemaImportDialog_13, ex)); return null; } } /** * Update the state of the OK button to the state indicated. * * @param state false to disable, true to enable. */ public void updateOK(boolean state) { Button okButton = getOkButton(); if (okButton != null && !okButton.isDisposed()) { okButton.setEnabled(state); } } /** * @see org.eclipse.ui.dialogs.SelectionStatusDialog#computeResult() */ @Override protected void computeResult() { Object object = fTreeViewer.getInput(); if (object == null) { return; } setSelectionResult(new Object[] { object }); } /** * Configure the dialog as a schema import dialog. Set the title and * the structure pane message. * */ public void configureAsSchemaImport() { setTitle(Messages.SchemaImportDialog_2); fStructureTitle = Messages.SchemaImportDialog_11; fResourceKind = IBPELUIConstants.EXTENSION_XSD; } /** * Configure the dialog as a WSDL import dialog. Set the title and * the structure pane message. * */ public void configureAsWSDLImport() { setTitle(Messages.SchemaImportDialog_0); fStructureTitle = Messages.SchemaImportDialog_14; fTreeContentProvider = new PartnerLinkTypeTreeContentProvider(true); fResourceKind = IBPELUIConstants.EXTENSION_WSDL; } /** * * @author Michal Chmielewski (michal.chmielewski@oracle.com) * @date May 4, 2007 * */ public class TreeFilter extends ViewerFilter { /** (non-Javadoc) * @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) */ @Override public boolean select(Viewer viewer, Object parentElement, Object element) { if (fFilter == null || fFilter.length() == 0) { return true; } if (element instanceof Service) { String text = ""; //$NON-NLS-1$ Service service = (Service) element; if (service.getName().size() > 0) { Name name = service.getName().get(0); text += name.getValue(); } if (service.getAbstract().size() > 0) { TypeOfAbstract abst = service.getAbstract().get(0); text += abst.getValue(); } return (text.toLowerCase().indexOf(fFilter) > -1); } return true; } } /** * * @author Michal Chmielewski (michal.chmielewski@oracle.com) * @date May 10, 2007 * */ public class WSILViewerComparator extends ViewerComparator { /** * @see org.eclipse.jface.viewers.ViewerComparator#category(java.lang.Object) */ @Override public int category(Object element) { if (element instanceof Inspection) return 1; if (element instanceof Link) return 2; if (element instanceof Service) return 3; return 0; } } }