Java tutorial
// ============================================================================ // // Copyright (C) 2006-2017 Talend Inc. - www.talend.com // // This source code is available under agreement available at // %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt // // You should have received a copy of the agreement // along with this program; if not, write to Talend SA // 9 rue Pages 92150 Suresnes, France // // ============================================================================ package com.amalto.workbench.dialogs; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.HashMap; import java.util.HashSet; import java.util.Map; import java.util.Set; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.eclipse.emf.common.util.EList; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.ITreeContentProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; 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.Combo; 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.TabFolder; import org.eclipse.swt.widgets.TabItem; import org.eclipse.ui.ISharedImages; import org.eclipse.ui.PlatformUI; import org.eclipse.xsd.XSDComplexTypeDefinition; import org.eclipse.xsd.XSDElementDeclaration; import org.eclipse.xsd.XSDModelGroup; import org.eclipse.xsd.XSDParticle; import org.eclipse.xsd.XSDSchema; import org.eclipse.xsd.XSDTerm; import org.eclipse.xsd.XSDTypeDefinition; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import com.amalto.workbench.i18n.Messages; import com.amalto.workbench.image.ImageCache; import com.amalto.workbench.utils.Util; import com.amalto.workbench.webservices.TMDMService; import com.amalto.workbench.webservices.WSDataModel; import com.amalto.workbench.webservices.WSDataModelPK; import com.amalto.workbench.webservices.WSGetDataModel; import com.amalto.workbench.widgets.xmlviewer.XMLConfiguration; import com.amalto.workbench.widgets.xmlviewer.XMLSourceViewer; import com.amalto.workbench.widgets.xmlviewer.XMLSourceViewerHelper; import com.amalto.workbench.widgets.xmlviewer.contentassist.IKeyWordProvider; public class DOMViewDialog extends Dialog implements IKeyWordProvider { private static Log log = LogFactory.getLog(DOMViewDialog.class); public final static int BUTTON_CLOSE = 10; public final static int BUTTON_SAVE = 15; public final static int BUTTON_CANCEL = 20; public final static int TREE_VIEWER = 0; public final static int SOURCE_VIEWER = 1; protected Node node; protected TreeViewer domViewer; protected XMLSourceViewer sourceViewer; protected Combo dataModelCombo; protected TabFolder tabFolder; protected int firstTab = TREE_VIEWER; protected Label mcLable = null; // protected boolean elementChanged = false; private int buttonPressed = 0; private boolean editable = false; private Collection<String> dataModelNames; private String selectedDataModel; private String desc; private Collection<Listener> listeners = new ArrayList<Listener>(); private final TMDMService port; public DOMViewDialog(Shell parentShell, Node node) { this(parentShell, null, node, false, null, TREE_VIEWER, null); } public DOMViewDialog(Shell parentShell, Node node, boolean editable, Collection<String> dataModelNames, int firstTab, String selectedDataModel, String desc) { this(parentShell, null, node, editable, dataModelNames, firstTab, selectedDataModel); this.desc = desc; } public DOMViewDialog(Shell parentShell, TMDMService port, Node node, boolean editable, Collection<String> dataModelNames, int firstTab, String selectedDataModel) { super(parentShell); this.port = port; this.node = node; this.editable = editable; this.dataModelNames = new ArrayList<String>(); if (dataModelNames != null) { this.dataModelNames.addAll(dataModelNames); } this.firstTab = firstTab; this.selectedDataModel = selectedDataModel; setShellStyle(getShellStyle() | SWT.RESIZE | SWT.MAX); } @Override protected Control createDialogArea(Composite parent) { try { // Should not really be here but well,.... if (editable) { parent.getShell().setText(Messages.DOMViewDialog_EditorViewer); } else { parent.getShell().setText(Messages.DOMViewDialog_Viewer); } Composite composite = new Composite(parent, SWT.NULL); GridLayout layout = new GridLayout(); layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN); layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN); layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING); layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING); composite.setLayout(layout); composite.setLayoutData(new GridData(GridData.FILL_BOTH)); applyDialogFont(composite); if (desc != null && desc.length() > 0) { new Label(composite, SWT.NONE).setText(desc); } tabFolder = new TabFolder(composite, SWT.TOP | SWT.H_SCROLL | SWT.V_SCROLL); tabFolder.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); ((GridData) tabFolder.getLayoutData()).heightHint = 600; ((GridData) tabFolder.getLayoutData()).widthHint = 600; tabFolder.addSelectionListener(new SelectionListener() { public void widgetDefaultSelected(SelectionEvent e) { } public void widgetSelected(SelectionEvent e) { if (tabFolder.getSelectionIndex() == 0) { if (node == null) { try { if (sourceViewer == null || sourceViewer.getDocument() == null) { return; } node = Util.parse(sourceViewer.getText()); } catch (Exception ex) { log.error(ex.getMessage(), ex); tabFolder.setSelection(1); MessageDialog.openError(DOMViewDialog.this.getShell(), Messages.DOMViewDialog_XMLInvalid, Messages.bind( Messages.DOMViewDialog_XMLInvalidInfo, ex.getLocalizedMessage())); return; } domViewer.setInput(node); domViewer.expandAll(); } } else if (tabFolder.getSelectionIndex() == 1) { try { sourceViewer.setText(Util.nodeToString(node)); node = null; // this should be better implemented in a change listener on the text } catch (Exception ex) { MessageDialog.openError(DOMViewDialog.this.getShell(), Messages.DOMViewDialog_ErrorTitle, Messages.bind(Messages.DOMViewDialog_ErrorMsg, ex.getLocalizedMessage())); sourceViewer.setText(""); //$NON-NLS-1$ } } }// widget Selected }); TabItem tiDOM = new TabItem(tabFolder, SWT.NULL); tiDOM.setText(Messages.DOMViewDialog_Tree); tiDOM.setToolTipText(Messages.DOMViewDialog_DisplayAsDomTree); domViewer = new TreeViewer(tabFolder, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL); domViewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); // ((GridData)domViewer.getControl().getLayoutData()).heightHint=300; // ((GridData)domViewer.getControl().getLayoutData()).widthHint=300; domViewer.setSorter(null); domViewer.setLabelProvider(new DOMTreeLabelProvider()); domViewer.setContentProvider(new DOMTreeContentProvider()); domViewer.setInput(node); domViewer.expandAll(); domViewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); tiDOM.setControl(domViewer.getControl()); TabItem tiSource = new TabItem(tabFolder, SWT.NULL); tiSource.setText(Messages.DOMViewDialog_TiSourceText); tiSource.setToolTipText(Messages.DOMViewDialog_TiSourceTip); XMLSourceViewerHelper sourceViewerHelper = XMLSourceViewerHelper.getInstance(); sourceViewer = new XMLSourceViewer(tabFolder, sourceViewerHelper.createVerticalRuler(), sourceViewerHelper.createOverviewRuler(), true, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL); XMLConfiguration sourceViewerConfiguration = new XMLConfiguration(this); sourceViewer.configure(sourceViewerConfiguration); sourceViewer.initilize(); sourceViewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); sourceViewer.setText(Util.nodeToString(node)); sourceViewer.setEditable(this.editable); /* * sourceViewer.addTextListener( new ITextListener() { public void * textChanged(org.eclipse.jface.text.TextEvent event) { if ((event.getText()==null) || * ("".equals(event.getText()))) return; node = null; elementChanged = true; } } ); */ tiSource.setControl(sourceViewer.getControl()); tabFolder.setSelection(firstTab); if (firstTab == SOURCE_VIEWER) { node = null; // force refresh of tree } return composite; } catch (Exception e) { log.error(e.getMessage(), e); MessageDialog.openError(this.getShell(), Messages._Error, Messages.bind(Messages.DOMViewDialog_ErrorMsg1, e.getLocalizedMessage())); return null; } } public int getButtonPressed() { return buttonPressed; } public String getDataModelName() { return dataModelCombo.getText(); } public Node getNode() { return this.node; } public String getXML() { return sourceViewer.getText(); } private Map<String, String[]> keyWordMap = new HashMap<String, String[]>(); private void updateKeyMap(String dataModelName) { if (dataModelName == null || port == null) { return; } if (keyWordMap.get(dataModelName) == null) { WSGetDataModel wsGetModel = new WSGetDataModel(new WSDataModelPK(dataModelName)); try { WSDataModel dataModel = port.getDataModel(wsGetModel); String xsdSchemaStr = dataModel.getXsdSchema(); if (xsdSchemaStr != null) { XSDSchema schema = Util.getXSDSchema(xsdSchemaStr); Set<String> allKeyWords = getAllKeyWords(schema); if (!allKeyWords.isEmpty()) { String[] keys = allKeyWords.toArray(new String[0]); Arrays.sort(keys); keyWordMap.put(dataModelName, keys); } } } catch (Exception ex) { log.error(ex.getMessage(), ex); } } } public String[] getCurrentKeyWords() { String dataModelName = dataModelCombo.getText(); if (dataModelName != null) { return keyWordMap.get(dataModelName); } return null; } private Set<String> getAllKeyWords(XSDSchema schema) { Set<String> keys = new HashSet<String>(); for (XSDElementDeclaration elementDecl : schema.getElementDeclarations()) { collectKeyWords(elementDecl, keys); } return keys; } private void collectKeyWords(XSDElementDeclaration elementDeclaration, Set<String> keys) { String elementName = elementDeclaration.getName(); keys.add(elementName); XSDTypeDefinition typeDefinition = elementDeclaration.getType(); if (typeDefinition instanceof XSDComplexTypeDefinition) { XSDParticle particle = (XSDParticle) ((XSDComplexTypeDefinition) typeDefinition).getContent(); XSDTerm term = particle.getTerm(); if (term instanceof XSDModelGroup) { EList<XSDParticle> particles = ((XSDModelGroup) term).getContents(); for (XSDParticle p : particles) { XSDTerm childTerm = p.getTerm(); if (childTerm instanceof XSDElementDeclaration) { collectKeyWords((XSDElementDeclaration) childTerm, keys); } } } } } @Override protected void createButtonsForButtonBar(Composite parent) { if (!editable) { createButton(parent, BUTTON_CLOSE, Messages.Close, true); } else { mcLable = new Label(parent, SWT.RIGHT); mcLable.setText(Messages.DOMViewDialog_DataModel); dataModelCombo = new Combo(parent, SWT.DROP_DOWN | SWT.READ_ONLY); String[] dms = dataModelNames.toArray(new String[dataModelNames.size()]); Arrays.sort(dms); dataModelCombo.setItems(dms); dataModelCombo.select(-1); dataModelCombo.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { String dataModelName = dataModelCombo.getText(); updateKeyMap(dataModelName); } }); if (selectedDataModel != null) { for (int i = 0; i < dms.length; i++) { String dm = dms[i]; if (dm.equals(selectedDataModel)) { dataModelCombo.select(i); updateKeyMap(dm); break; } } } createButton(parent, BUTTON_SAVE, Messages.Save, false); createButton(parent, BUTTON_CANCEL, Messages.Cancel, true); } } @Override protected void buttonPressed(int buttonId) { this.buttonPressed = buttonId; if (buttonId == BUTTON_SAVE) { // check that Data Model is not nul if (dataModelCombo.getSelectionIndex() == -1) { MessageDialog.openError(DOMViewDialog.this.getShell(), Messages.DOMViewDialog_ErrorTitle2, Messages.DOMViewDialog_ErrorMsg2); return; } // if save and on DOM viewer get the XML String if (tabFolder.getSelectionIndex() == 0) { try { sourceViewer.setText(Util.nodeToString(node)); } catch (Exception ex) { tabFolder.setSelection(1); MessageDialog.openError(DOMViewDialog.this.getShell(), Messages.DOMViewDialog_ErrorTitle3, Messages.bind(Messages.DOMViewDialog_ErrorMsg3, ex.getLocalizedMessage())); return; } } } Event e = new Event(); e.button = buttonId; notifyListeners(e); } public void addListener(Listener listener) { listeners.add(listener); } public void notifyListeners(Event e) { for (Listener listener : listeners) { listener.handleEvent(e); } } /** * DOM Tree Content Provider * * @author bgrieder * */ class DOMTreeContentProvider implements IStructuredContentProvider, ITreeContentProvider { public DOMTreeContentProvider() { } public void inputChanged(Viewer v, Object oldInput, Object newInput) { } public void dispose() { } public Object[] getElements(Object parent) { return getChildren(parent); } public Object getParent(Object child) { // if (child instanceof Element) { return ((Element) child).getParentNode(); // } // return null; } public Object[] getChildren(Object parent) { if (parent instanceof Document) { return new Object[] { ((Document) parent).getDocumentElement() }; } if (parent instanceof Element) { Element e = (Element) parent; ArrayList<Node> list = new ArrayList<Node>(); // Attributes NamedNodeMap map = e.getAttributes(); for (int i = 0; i < map.getLength(); i++) { list.add(map.item(i)); } // Sub-Elements NodeList nl = ((Element) parent).getChildNodes(); for (int i = 0; i < nl.getLength(); i++) { if (nl.item(i) instanceof Element) { list.add(nl.item(i)); } } if (list.size() == 0) { return null; } else { return list.toArray(new Node[list.size()]); } } return null; } public boolean hasChildren(Object parent) { if (parent instanceof Document) { return true; } if (parent instanceof Element) { return (((Element) parent).getChildNodes().getLength() + ((Element) parent).getAttributes().getLength()) > 1; } return false; } } /** * DOM Tree Label Provider * * @author bgrieder * */ class DOMTreeLabelProvider extends LabelProvider { @Override public String getText(Object obj) { if (obj instanceof Node) { Node e = (Node) obj; if (e.getChildNodes().getLength() > 1) { return e.getLocalName(); } else { return e.getLocalName() + ": " + e.getTextContent();//$NON-NLS-1$ } } return "?? " + obj.getClass().getName() + " : " + obj.toString();//$NON-NLS-1$//$NON-NLS-2$ } @Override public Image getImage(Object obj) { if (obj instanceof Element) { if (((Element) obj).getChildNodes().getLength() > 1) { return PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_FOLDER); } else { return PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_ELEMENT); } } else if (obj instanceof Node) { return ImageCache.getImage("icons/attribute.gif").createImage();//$NON-NLS-1$ } return ImageCache.getImage("icons/small_warn.gif").createImage();//$NON-NLS-1$ } }// Class DOM Tree Label Provider }