Java tutorial
/******************************************************************************* * Copyright (c) 2014 Red Hat, Inc. * All rights reserved. * This program is 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: * JBoss by Red Hat - Initial implementation. ******************************************************************************/ package org.switchyard.tools.ui.editor.components.camel.cxf; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.UpdateValueStrategy; import org.eclipse.core.databinding.observable.Realm; import org.eclipse.core.databinding.observable.value.IObservableValue; import org.eclipse.core.databinding.observable.value.IValueChangeListener; import org.eclipse.core.databinding.observable.value.ValueChangeEvent; import org.eclipse.core.databinding.observable.value.WritableValue; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.Status; import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain; import org.eclipse.emf.edit.domain.EditingDomain; import org.eclipse.jdt.core.IJavaElement; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.IType; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.core.search.IJavaSearchScope; import org.eclipse.jdt.core.search.SearchEngine; import org.eclipse.jdt.ui.IJavaElementSearchConstants; import org.eclipse.jdt.ui.JavaUI; import org.eclipse.jface.databinding.fieldassist.ControlDecorationSupport; import org.eclipse.jface.databinding.swt.SWTObservables; import org.eclipse.jface.databinding.viewers.ViewersObservables; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.soa.sca.sca1_1.model.sca.Binding; import org.eclipse.soa.sca.sca1_1.model.sca.ScaPackage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.FillLayout; 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.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.dialogs.SelectionDialog; import org.eclipse.ui.forms.widgets.FormToolkit; import org.switchyard.tools.models.switchyard1_0.camel.cxf.CamelCxfBindingType; import org.switchyard.tools.models.switchyard1_0.camel.cxf.CxfPackage; import org.switchyard.tools.ui.JavaUtil; import org.switchyard.tools.ui.common.ClasspathResourceSelectionDialog; import org.switchyard.tools.ui.editor.Messages; import org.switchyard.tools.ui.editor.databinding.CompoundValidator; import org.switchyard.tools.ui.editor.databinding.EMFUpdateValueStrategyNullForEmptyString; import org.switchyard.tools.ui.editor.databinding.NullElement; import org.switchyard.tools.ui.editor.databinding.ObservablesUtil; import org.switchyard.tools.ui.editor.databinding.SWTValueUpdater; import org.switchyard.tools.ui.editor.databinding.StringEmptyValidator; import org.switchyard.tools.ui.editor.databinding.URLValidator; import org.switchyard.tools.ui.editor.diagram.binding.AbstractSYBindingComposite; import org.switchyard.tools.ui.editor.impl.SwitchyardSCAEditor; /** * @author bfitzpat * */ public class CamelCxfConsumerComposite extends AbstractSYBindingComposite { private Composite _panel; private CamelCxfBindingType _binding = null; private Text _nameText; private Text _feedURIText; private Button _relayHeadersCheckbox; private Button _wrappedCheckbox; private WritableValue _bindingValue; private Text _wsdlURLText; private Button _browseWSDLButton; private ComboViewer _dataFormatComboViewer; private Text _serviceClassText; private Button _browseServiceClassButton; private Text _serviceNameText; private Text _portNameText; private ComboViewer _wrappedStyleComboViewer; private IObservableValue _wrappedStyleDetail; CamelCxfConsumerComposite(FormToolkit toolkit) { super(toolkit); } @Override public String getTitle() { return "CXF Binding"; } @Override public String getDescription() { return "CXF Binding"; } @Override public void setBinding(Binding impl) { super.setBinding(impl); if (impl instanceof CamelCxfBindingType) { _binding = (CamelCxfBindingType) impl; _bindingValue.setValue(_binding); /** UGLY workaround to manage three states (null/Boolean True/Boolean False) for * this particular property. Need to find a better way. Tried ComputedValue, but * couldn't get it to work. **/ if (!_binding.isSetWrappedStyle()) { _wrappedStyleComboViewer.getCombo().setText(""); } else { _wrappedStyleComboViewer .setSelection(new StructuredSelection(Boolean.valueOf(_binding.isWrappedStyle()))); } } else { _bindingValue.setValue(null); } } @Override public void createContents(Composite parent, int style, DataBindingContext context) { _panel = new Composite(parent, style); _panel.setLayout(new FillLayout()); getConsumerTabControl(_panel); bindControls(context); } private Control getConsumerTabControl(Composite tabFolder) { Composite composite = new Composite(tabFolder, SWT.NONE); GridLayout gl = new GridLayout(3, false); composite.setLayout(gl); _nameText = createLabelAndText(composite, Messages.label_name, 2); _feedURIText = createLabelAndText(composite, "CXF URI*", 2); _wsdlURLText = createLabelAndText(composite, "WSDL URL"); _browseWSDLButton = getToolkit().createButton(composite, "...", SWT.PUSH); _browseWSDLButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(final SelectionEvent e) { String result = selectResourceFromWorkspace(_panel.getShell(), "wsdl"); //$NON-NLS-1$ if (result != null) { setTextValueAndNotify(_wsdlURLText, result, false); } } }); _dataFormatComboViewer = createLabelAndComboViewer(composite, "Data Format", true, 2); _dataFormatComboViewer.add(new String[] { "POJO", "PAYLOAD", "MESSAGE" }); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ _serviceClassText = createLabelAndText(composite, "Service Class"); _browseServiceClassButton = getToolkit().createButton(composite, "...", SWT.PUSH); _browseServiceClassButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(final SelectionEvent e) { String result = handleBrowse(_serviceClassText.getText()); if (result != null) { setTextValueAndNotify(_serviceClassText, result, false); } } }); _serviceNameText = createLabelAndText(composite, "Service Name", 2); _portNameText = createLabelAndText(composite, "Port Name", 2); _relayHeadersCheckbox = createCheckbox(composite, "Relay Headers", 3); _wrappedCheckbox = createCheckbox(composite, "Wrapped", 3); _wrappedStyleComboViewer = createLabelAndComboViewer(composite, "Wrapped Style", true, 2); _wrappedStyleComboViewer.add(new Object[] { NullElement.getInstance(), Boolean.TRUE, Boolean.FALSE }); _wrappedStyleComboViewer.addSelectionChangedListener(new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { IStructuredSelection ssel = (IStructuredSelection) event.getSelection(); updateWrappedStyleCombo(ssel.getFirstElement()); } }); return composite; } @Override public Composite getPanel() { return this._panel; } protected void handleModify(final Control control) { setHasChanged(false); setDidSomething(true); } protected void handleUndo(Control control) { if (_binding != null) { super.handleUndo(control); } } private void bindControls(final DataBindingContext context) { final EditingDomain domain = AdapterFactoryEditingDomain.getEditingDomainFor(getTargetObject()); final Realm realm = SWTObservables.getRealm(_nameText.getDisplay()); _bindingValue = new WritableValue(realm, null, CamelCxfBindingType.class); org.eclipse.core.databinding.Binding binding = context.bindValue( SWTObservables.observeText(_nameText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, ScaPackage.eINSTANCE.getBinding_Name()), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator( new StringEmptyValidator("CXF binding name should not be empty", Status.WARNING)), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); /* * we also want to bind the name field to the binding name. note that * the model to target updater is configured to NEVER update. we want * the camel binding name to be the definitive source for this field. */ binding = context.bindValue(SWTObservables.observeText(_nameText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, ScaPackage.eINSTANCE.getBinding_Name()), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator( new StringEmptyValidator("CXF binding name should not be empty", Status.WARNING)), new UpdateValueStrategy(UpdateValueStrategy.POLICY_NEVER)); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); CompoundValidator uriValidator = new CompoundValidator( new StringEmptyValidator("CXF URI may not be empty."), new URLValidator("Potential problem with CXF URI")); binding = context.bindValue(SWTObservables.observeText(_feedURIText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, CxfPackage.Literals.CAMEL_CXF_BINDING_TYPE__CXF_URI), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator(uriValidator), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeText(_wsdlURLText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, CxfPackage.Literals.CAMEL_CXF_BINDING_TYPE__WSDL_URL), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); IObservableValue dataFormatModelValue = ObservablesUtil.observeDetailValue(domain, _bindingValue, CxfPackage.Literals.CAMEL_CXF_BINDING_TYPE__DATA_FORMAT); binding = context.bindValue(ViewersObservables.observeSingleSelection(_dataFormatComboViewer), dataFormatModelValue, new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); final IObservableValue relayHeaders = ObservablesUtil.observeDetailValue(domain, _bindingValue, CxfPackage.Literals.CAMEL_CXF_BINDING_TYPE__RELAY_HEADERS); dataFormatModelValue.addValueChangeListener(new IValueChangeListener() { @Override public void handleValueChange(ValueChangeEvent event) { Object value = event.getObservableValue().getValue(); if (value != null && value instanceof String) { String strValue = (String) value; boolean isPojo = strValue.equalsIgnoreCase("POJO"); //$NON-NLS-1$ _relayHeadersCheckbox.setEnabled(isPojo); if (isPojo) { relayHeaders.setValue(Boolean.TRUE); // default to true } else { relayHeaders.setValue(Boolean.FALSE); } } } }); binding = context.bindValue(SWTObservables.observeText(_serviceClassText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, CxfPackage.Literals.CAMEL_CXF_BINDING_TYPE__SERVICE_CLASS), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeText(_serviceNameText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, CxfPackage.Literals.CAMEL_CXF_BINDING_TYPE__SERVICE_NAME), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeText(_portNameText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, CxfPackage.Literals.CAMEL_CXF_BINDING_TYPE__PORT_NAME), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeSelection(_relayHeadersCheckbox), relayHeaders, new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeSelection(_wrappedCheckbox), ObservablesUtil.observeDetailValue(domain, _bindingValue, CxfPackage.Literals.CAMEL_CXF_BINDING_TYPE__WRAPPED), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); _wrappedStyleDetail = ObservablesUtil.observeDetailValue(domain, _bindingValue, CxfPackage.Literals.CAMEL_CXF_BINDING_TYPE__WRAPPED_STYLE); // otherWayThatDidntWork(context); } // private void otherWayThatDidntWork(final DataBindingContext context) { // IObservableValue wrappedStyleSelectionValue = // ViewersObservables.observeSingleSelection(_wrappedStyleComboViewer); // // org.eclipse.core.databinding.Binding binding = context // .bindValue( // wrappedStyleSelectionValue, // _wrappedStyleDetail, // new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); // ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); // // wrappedStyleSelectionValue.addValueChangeListener(new IValueChangeListener() { // @Override // public void handleValueChange(ValueChangeEvent event) { // Object value = event.getObservableValue().getValue(); // if (value != null && value instanceof NullElement) { // _binding.unsetWrappedStyle(); // } else if (value != null && value instanceof Boolean) { // _wrappedStyleDetail.setValue(value); // } // } // }); // } /* (non-Javadoc) * @see org.switchyard.tools.ui.editor.diagram.shared.AbstractSwitchyardComposite#dispose() */ @Override public void dispose() { _bindingValue.dispose(); super.dispose(); } private String selectResourceFromWorkspace(Shell shell, final String extension) { IFile modelFile = SwitchyardSCAEditor.getActiveEditor().getModelFile(); IJavaProject javaProject = null; if (modelFile != null) { if (modelFile.getProject() != null) { //$NON-NLS-1$ javaProject = JavaCore.create(modelFile.getProject()); } } ClasspathResourceSelectionDialog dialog = null; if (javaProject == null) { dialog = new ClasspathResourceSelectionDialog(shell, ResourcesPlugin.getWorkspace().getRoot(), extension); } else { dialog = new ClasspathResourceSelectionDialog(shell, javaProject.getProject(), extension); } dialog.setTitle("Select WSDL from Project"); dialog.setInitialPattern("*." + extension); //$NON-NLS-1$ dialog.open(); Object[] result = dialog.getResult(); if (result == null || result.length == 0 || !(result[0] instanceof IResource)) { return null; } return JavaUtil.getJavaPathForResource((IResource) result[0]).toString(); } private String handleBrowse(String initialSelection) { IJavaSearchScope scope = null; IFile modelFile = SwitchyardSCAEditor.getActiveEditor().getModelFile(); IJavaProject javaProject = null; if (modelFile != null) { if (modelFile.getProject() != null) { //$NON-NLS-1$ javaProject = JavaCore.create(modelFile.getProject()); } } if (javaProject == null) { scope = SearchEngine.createWorkspaceScope(); } else { scope = SearchEngine.createJavaSearchScope(new IJavaElement[] { javaProject }); } try { String filter = initialSelection; SelectionDialog dialog = JavaUI.createTypeDialog(Display.getCurrent().getActiveShell(), null, scope, IJavaElementSearchConstants.CONSIDER_CLASSES, false, filter.isEmpty() ? "* " : filter); //$NON-NLS-1$ if (dialog.open() == SelectionDialog.OK) { Object[] result = dialog.getResult(); if (result.length > 0 && result[0] instanceof IType) { return ((IType) result[0]).getFullyQualifiedName(); } } } catch (JavaModelException e) { e.printStackTrace(); } return null; } private void updateWrappedStyleCombo(Object value) { if (value instanceof NullElement) { _binding.unsetWrappedStyle(); } else if (value instanceof Boolean) { _wrappedStyleDetail.setValue(value); } } }