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.widgets.composites; import java.util.ArrayList; import java.util.LinkedList; import java.util.List; import java.util.Set; import org.eclipse.emf.common.util.EList; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.window.Window; import org.eclipse.swt.SWT; import org.eclipse.swt.events.MouseAdapter; import org.eclipse.swt.events.MouseEvent; 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.ui.PlatformUI; import org.eclipse.xsd.XSDComponent; import org.eclipse.xsd.XSDConcreteComponent; import org.eclipse.xsd.XSDElementDeclaration; import org.eclipse.xsd.XSDNamedComponent; import org.eclipse.xsd.XSDSchema; import com.amalto.workbench.detailtabs.sections.XpathSection; import com.amalto.workbench.detailtabs.sections.providers.StringViewerSorter; import com.amalto.workbench.dialogs.datamodel.SelectXPathDialog; import com.amalto.workbench.i18n.Messages; import com.amalto.workbench.image.EImage; import com.amalto.workbench.image.ImageCache; import com.amalto.workbench.models.infoextractor.IAllDataModelHolder; import com.amalto.workbench.models.infoextractor.XSDComponentChildElementsHolder; import com.amalto.workbench.providers.ListContentProvider; import com.amalto.workbench.providers.ListStringLabelProvider; import com.amalto.workbench.utils.Util; public class XpathComposite extends ListStringContentsComposite { protected XpathSection section; private ComboViewer comboInfos; public XpathComposite(Composite parent, int style, XpathSection section) { super(parent, style, null, section); this.section = section; } public XpathComposite(Composite parent) { super(parent, SWT.NONE, new Object[] {}, null); } protected XSDComponent getXSD() { return section.getEditedObj(); } @Override protected String getInfoColTitle() { return "XPath"; //$NON-NLS-1$ } @Override protected void createExtentUIArea(Composite parent) { } protected String getDatamodel() { return section.getDataModelName(); } protected String getConcept() { Set<String> entities = section.getEntities(); if (null != entities) { StringBuilder builder = new StringBuilder(); for (String entity : entities) { if (builder.length() > 0) { builder.append("|"); } builder.append(entity); } return builder.toString(); } return null; } protected IAllDataModelHolder getDataholder() { return section.getDataHolder(); } XSDSchema getDatamodelXSD(XSDConcreteComponent component) { if (null == component.getContainer()) { return (XSDSchema) component; } return getDatamodelXSD(component.getContainer()); } XSDSchema getDatamodelXSD() { return getDatamodelXSD(this.getXSD()); } Object[] getXSDSchemaChildren(XSDSchema schema) { List<XSDElementDeclaration> declarations = new ArrayList<XSDElementDeclaration>(); EList<XSDElementDeclaration> elementDeclarations = schema.getElementDeclarations(); for (XSDElementDeclaration declaration : elementDeclarations) { if (declaration.eContainer().equals(schema)) { declarations.add(declaration); } } Object[] schemaChildren = Util .filterOutDuplicatedElems(declarations.toArray(new XSDNamedComponent[declarations.size()])); return schemaChildren; } protected String[] getItems() { Set<String> entities = section.getEntities(); if (null != entities) { XSDSchema schema = getDatamodelXSD(); Object[] child = getXSDSchemaChildren(schema); List<String> items = new LinkedList<String>(); for (Object obj : child) { if (obj instanceof XSDNamedComponent) { if (entities.contains(((XSDNamedComponent) obj).getName())) { XSDComponentChildElementsHolder holder = new XSDComponentChildElementsHolder( (XSDNamedComponent) obj); String[] eles = holder.getAllElements(); if (null == eles) { continue; } for (String ele : eles) { items.add(ele); } } } } return items.toArray(new String[0]); } return null; } protected String[] getElementPathsFrXSDElementDeclaration(XSDElementDeclaration parent) { try { return Util.getChildElementNames(parent.getName(), parent).toArray(new String[0]); } catch (Exception e) { return new String[0]; } } @Override protected void createCandidateInfoUIArea(Composite parent) { Composite compSimpleXPath = new Composite(this, SWT.NONE); compSimpleXPath.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); compSimpleXPath.setLayout(new GridLayout(2, false)); comboInfos = new ComboViewer(compSimpleXPath, SWT.DROP_DOWN); comboInfos.getControl().setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); comboInfos.setContentProvider(new ListContentProvider()); comboInfos.setLabelProvider(new ListStringLabelProvider()); comboInfos.setSorter(new StringViewerSorter()); comboInfos.getCombo().addMouseListener(new MouseAdapter() { @Override public void mouseDown(MouseEvent e) { comboInfos.setInput(getItems()); } }); GridDataFactory.swtDefaults().align(SWT.FILL, SWT.CENTER).grab(true, false) .applyTo(comboInfos.getControl()); Button btnSelectXPath = new Button(compSimpleXPath, SWT.NONE); btnSelectXPath.setImage(ImageCache.getCreatedImage(EImage.DOTS_BUTTON.getPath())); btnSelectXPath.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { SelectXPathDialog dialog = new SelectXPathDialog( PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), getDataholder(), getDatamodel(), getConcept(), null); if (dialog.open() != Window.OK) { return; } String xpath = dialog.getSelectedXPath(); if (null != xpath) { XpathComposite.this.addInfoToInfoTree(xpath); } } }); btnSelectXPath.setToolTipText(Messages.SchematronExpressBuilder_selectXPath); } @Override protected boolean hasCandidateInfo() { return !("".equals(getCandidateInfo())); } @Override protected String getCandidateInfo() { return comboInfos.getCombo().getText(); } @Override protected void initCandidateInfoUIArea() { comboInfos.setSelection(null); } @Override protected void initParas(Object[] paras) { } }