Java tutorial
/******************************************************************************* * Copyright (c) 2012-2014 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: * Red Hat, Inc. - initial API and implementation * * @author bfitzpat ******************************************************************************/ package org.switchyard.tools.ui.editor.components.camel.jpa; 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.WritableValue; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Status; import org.eclipse.emf.databinding.FeaturePath; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.ecore.resource.Resource; 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.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.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.Display; import org.eclipse.swt.widgets.Group; 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.jpa.CamelJpaBindingType; import org.switchyard.tools.models.switchyard1_0.camel.jpa.JpaPackage; import org.switchyard.tools.ui.editor.Messages; import org.switchyard.tools.ui.editor.databinding.EMFUpdateValueStrategyNullForEmptyString; import org.switchyard.tools.ui.editor.databinding.IntegerValidator; 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.diagram.binding.AbstractSYBindingComposite; import org.switchyard.tools.ui.editor.model.merge.MergedModelUtil; /** * @author bfitzpat * */ public class CamelJPAConsumerComposite extends AbstractSYBindingComposite { private Composite _panel; private CamelJpaBindingType _binding = null; private Text _nameText; private Text _entityClassNameText; private Button _browseEntityClassButton; private Text _persistenceUnitText; private Text _transcationManagerText; private Button _deleteCheckbox; private Button _lockEntityCheckbox; private Text _maximumResultsText; private Text _queryText; private Text _namedQueryText; private Text _nativeQueryText; private Button _transactedCheckbox; private IJavaProject _project; private WritableValue _bindingValue; CamelJPAConsumerComposite(FormToolkit toolkit) { super(toolkit); } @Override public String getTitle() { return Messages.title_jpaBindingDetails; } @Override public String getDescription() { return Messages.description_jpaBindingDetails; } @Override public void setBinding(Binding impl) { super.setBinding(impl); if (impl instanceof CamelJpaBindingType) { this._binding = (CamelJpaBindingType) impl; _bindingValue.setValue(_binding); final Resource resource = MergedModelUtil.getSwitchYard((EObject) getTargetObject()).eResource(); if (resource.getURI().isPlatformResource()) { final IFile file = ResourcesPlugin.getWorkspace().getRoot() .getFile(new Path(resource.getURI().toPlatformString(true))); if (file != null) { _project = JavaCore.create(file.getProject()); } } } 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); _nameText.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false, 2, 1)); _entityClassNameText = createLabelAndText(composite, Messages.label_entityClassName); _browseEntityClassButton = new Button(composite, SWT.PUSH); _browseEntityClassButton.setText(Messages.button_browse); GridData btnGD = new GridData(); _browseEntityClassButton.setLayoutData(btnGD); _browseEntityClassButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent event) { String newClass = handleBrowse(_entityClassNameText.getText()); if (newClass != null) { setTextValueAndNotify(_entityClassNameText, newClass, true); } } }); _persistenceUnitText = createLabelAndText(composite, Messages.label_persistenceUnit); addGridData(_persistenceUnitText, 2, GridData.FILL_HORIZONTAL); _transcationManagerText = createLabelAndText(composite, Messages.label_transactionManager); addGridData(_transcationManagerText, 2, GridData.FILL_HORIZONTAL); Group consumeGroup = new Group(composite, SWT.NONE); consumeGroup.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false, 3, 1)); consumeGroup.setLayout(new GridLayout(3, false)); consumeGroup.setText(Messages.label_consumerOptions); _deleteCheckbox = createCheckbox(consumeGroup, Messages.label_delete); addGridData(_deleteCheckbox, 3, GridData.FILL_HORIZONTAL); _lockEntityCheckbox = createCheckbox(consumeGroup, Messages.label_lockEntity); addGridData(_lockEntityCheckbox, 3, GridData.FILL_HORIZONTAL); _maximumResultsText = createLabelAndText(consumeGroup, Messages.label_maximumResults); addGridData(_maximumResultsText, 2, GridData.FILL_HORIZONTAL); _queryText = createLabelAndText(consumeGroup, Messages.label_query); addGridData(_queryText, 2, GridData.FILL_HORIZONTAL); _namedQueryText = createLabelAndText(consumeGroup, Messages.label_namedQuery); addGridData(_namedQueryText, 2, GridData.FILL_HORIZONTAL); _nativeQueryText = createLabelAndText(consumeGroup, Messages.label_nativeQuery); addGridData(_nativeQueryText, 2, GridData.FILL_HORIZONTAL); _transactedCheckbox = createCheckbox(consumeGroup, Messages.label_transacted); addGridData(_transactedCheckbox, 3, GridData.FILL_HORIZONTAL); 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 String handleBrowse(String filter) { IJavaSearchScope scope = null; if (_project == null) { scope = SearchEngine.createWorkspaceScope(); } else { scope = SearchEngine.createJavaSearchScope(new IJavaElement[] { _project }); } try { 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 bindConsumerControls(final DataBindingContext context, final EditingDomain domain) { FeaturePath path = FeaturePath.fromList(JpaPackage.Literals.CAMEL_JPA_BINDING_TYPE__CONSUME, JpaPackage.Literals.JPA_CONSUMER_TYPE__CONSUME_DELETE); org.eclipse.core.databinding.Binding binding = context.bindValue( SWTObservables.observeSelection(_deleteCheckbox), ObservablesUtil.observeDetailValue(domain, _bindingValue, path), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); path = FeaturePath.fromList(JpaPackage.Literals.CAMEL_JPA_BINDING_TYPE__CONSUME, JpaPackage.Literals.JPA_CONSUMER_TYPE__CONSUME_LOCK_ENTITY); binding = context.bindValue(SWTObservables.observeSelection(_lockEntityCheckbox), ObservablesUtil.observeDetailValue(domain, _bindingValue, path), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); path = FeaturePath.fromList(JpaPackage.Literals.CAMEL_JPA_BINDING_TYPE__CONSUME, JpaPackage.Literals.JPA_CONSUMER_TYPE__MAXIMUM_RESULTS); binding = context.bindValue(SWTObservables.observeText(_maximumResultsText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, path), new EMFUpdateValueStrategyNullForEmptyString("Maximum Results must be a valid number.", UpdateValueStrategy.POLICY_CONVERT).setAfterConvertValidator( new IntegerValidator("Maximum Results must be a valid number.")), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); path = FeaturePath.fromList(JpaPackage.Literals.CAMEL_JPA_BINDING_TYPE__CONSUME, JpaPackage.Literals.JPA_CONSUMER_TYPE__CONSUMER_QUERY); binding = context.bindValue(SWTObservables.observeText(_queryText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, path), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); path = FeaturePath.fromList(JpaPackage.Literals.CAMEL_JPA_BINDING_TYPE__CONSUME, JpaPackage.Literals.JPA_CONSUMER_TYPE__CONSUMER_NATIVE_QUERY); binding = context.bindValue(SWTObservables.observeText(_nativeQueryText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, path), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); path = FeaturePath.fromList(JpaPackage.Literals.CAMEL_JPA_BINDING_TYPE__CONSUME, JpaPackage.Literals.JPA_CONSUMER_TYPE__CONSUMER_NAMED_QUERY); binding = context.bindValue(SWTObservables.observeText(_namedQueryText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, path), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); path = FeaturePath.fromList(JpaPackage.Literals.CAMEL_JPA_BINDING_TYPE__CONSUME, JpaPackage.Literals.JPA_CONSUMER_TYPE__CONSUMER_TRANSACTED); binding = context.bindValue(SWTObservables.observeSelection(_transactedCheckbox), ObservablesUtil.observeDetailValue(domain, _bindingValue, path), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); } private void bindControls(final DataBindingContext context) { final EditingDomain domain = AdapterFactoryEditingDomain.getEditingDomainFor(getTargetObject()); final Realm realm = SWTObservables.getRealm(_nameText.getDisplay()); _bindingValue = new WritableValue(realm, null, CamelJpaBindingType.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("JPA 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("JPA binding name should not be empty", Status.WARNING)), new UpdateValueStrategy(UpdateValueStrategy.POLICY_NEVER)); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeText(_entityClassNameText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, JpaPackage.Literals.CAMEL_JPA_BINDING_TYPE__ENTITY_CLASS_NAME), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator(new StringEmptyValidator(Messages.error_emptyEntityClassName)), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeText(_persistenceUnitText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, JpaPackage.Literals.CAMEL_JPA_BINDING_TYPE__PERSISTENCE_UNIT), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator(new StringEmptyValidator(Messages.error_emptyPersistenceUnit)), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeText(_transcationManagerText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, JpaPackage.Literals.CAMEL_JPA_BINDING_TYPE__TRANSACTION_MANAGER), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); bindConsumerControls(context, domain); } /* (non-Javadoc) * @see org.switchyard.tools.ui.editor.diagram.shared.AbstractSwitchyardComposite#dispose() */ @Override public void dispose() { _bindingValue.dispose(); super.dispose(); } }