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.atom; 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.WritableValue; import org.eclipse.core.runtime.Status; import org.eclipse.emf.databinding.FeaturePath; import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain; import org.eclipse.emf.edit.domain.EditingDomain; 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.SelectionEvent; import org.eclipse.swt.events.SelectionListener; 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.Group; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.forms.widgets.FormToolkit; import org.switchyard.tools.models.switchyard1_0.camel.atom.AtomPackage; import org.switchyard.tools.models.switchyard1_0.camel.atom.CamelAtomBindingType; 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.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; /** * @author bfitzpat * */ public class CamelAtomConsumerComposite extends AbstractSYBindingComposite { private Composite _panel; private CamelAtomBindingType _binding = null; private Text _nameText; private Text _feedURIText; private Text _lastUpdateText; private Text _delayText; private Button _filterCheckbox; private Button _splitEntriesCheckbox; private WritableValue _bindingValue; private Button _sortEntriesCheckbox; CamelAtomConsumerComposite(FormToolkit toolkit) { super(toolkit); } @Override public String getTitle() { return "Atom Binding"; } @Override public String getDescription() { return "Atom Binding"; } @Override public void setBinding(Binding impl) { super.setBinding(impl); if (impl instanceof CamelAtomBindingType) { _binding = (CamelAtomBindingType) impl; _bindingValue.setValue(_binding); _filterCheckbox.setEnabled(_splitEntriesCheckbox.getSelection()); _lastUpdateText.setEnabled(_splitEntriesCheckbox.getSelection()); _sortEntriesCheckbox.setEnabled(_splitEntriesCheckbox.getSelection()); } 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(2, false); composite.setLayout(gl); _nameText = createLabelAndText(composite, Messages.label_name); _feedURIText = createLabelAndText(composite, "Feed URI*"); getToolkit().createLabel(composite, ""); getToolkit().createLabel(composite, ""); Group splitEntryOptionsGroup = new Group(composite, SWT.NONE); splitEntryOptionsGroup.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false, 2, 1)); splitEntryOptionsGroup.setLayout(new GridLayout(2, false)); splitEntryOptionsGroup.setText("Split Entry Options"); _splitEntriesCheckbox = createCheckbox(splitEntryOptionsGroup, "Split Entries"); _filterCheckbox = createCheckbox(splitEntryOptionsGroup, "Filter"); _lastUpdateText = createLabelAndText(splitEntryOptionsGroup, "Last Update (Starting Timestamp)"); _sortEntriesCheckbox = createCheckbox(splitEntryOptionsGroup, "Sort Entries (by Date)"); Group pollOptionsGroup = new Group(composite, SWT.NONE); pollOptionsGroup.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false, 2, 1)); pollOptionsGroup.setLayout(new GridLayout(2, false)); pollOptionsGroup.setText("Poll Options"); _delayText = createLabelAndText(pollOptionsGroup, "Delay Between Polls (MS) (Default 500)"); 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, CamelAtomBindingType.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("Atom 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("Atom 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("Feed URI may not be empty."), new URLValidator("Potential problem with Feed URI")); binding = context.bindValue(SWTObservables.observeText(_feedURIText, new int[] { SWT.Modify }), ObservablesUtil.observeDetailValue(domain, _bindingValue, AtomPackage.Literals.CAMEL_ATOM_BINDING_TYPE__FEED_URI), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator(uriValidator), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); final IObservableValue splitEntriesCheckboxValue = SWTObservables.observeSelection(_splitEntriesCheckbox); final IObservableValue filterValue = ObservablesUtil.observeDetailValue(domain, _bindingValue, AtomPackage.Literals.CAMEL_ATOM_BINDING_TYPE__FILTER); final IObservableValue lastUpdateValue = ObservablesUtil.observeDetailValue(domain, _bindingValue, AtomPackage.Literals.CAMEL_ATOM_BINDING_TYPE__LAST_UPDATE); final IObservableValue sortEntriesValue = ObservablesUtil.observeDetailValue(domain, _bindingValue, AtomPackage.Literals.CAMEL_ATOM_BINDING_TYPE__SORT_ENTRIES); binding = context.bindValue(splitEntriesCheckboxValue, ObservablesUtil.observeDetailValue(domain, _bindingValue, AtomPackage.Literals.CAMEL_ATOM_BINDING_TYPE__SPLIT_ENTRIES), new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); _splitEntriesCheckbox.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { _filterCheckbox.setEnabled(_splitEntriesCheckbox.getSelection()); _lastUpdateText.setEnabled(_splitEntriesCheckbox.getSelection()); _sortEntriesCheckbox.setEnabled(_splitEntriesCheckbox.getSelection()); if (!_splitEntriesCheckbox.getSelection()) { filterValue.setValue(Boolean.TRUE); // default lastUpdateValue.setValue(null); // default sortEntriesValue.setValue(Boolean.FALSE); // default } } @Override public void widgetDefaultSelected(SelectionEvent e) { } }); binding = context.bindValue(SWTObservables.observeSelection(_filterCheckbox), filterValue, new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeText(_lastUpdateText, new int[] { SWT.Modify }), lastUpdateValue, new EMFUpdateValueStrategyNullForEmptyString( "Last Update must match the format yyyy-MM-ddTHH:mm:ss", UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeSelection(_sortEntriesCheckbox), sortEntriesValue, new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); FeaturePath path = FeaturePath.fromList(AtomPackage.Literals.CAMEL_ATOM_BINDING_TYPE__CONSUME, AtomPackage.Literals.ATOM_SCHEDULED_POLL_CONSUMER_TYPE__DELAY); binding = context.bindValue(SWTObservables.observeText(_delayText, 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); } /* (non-Javadoc) * @see org.switchyard.tools.ui.editor.diagram.shared.AbstractSwitchyardComposite#dispose() */ @Override public void dispose() { _bindingValue.dispose(); super.dispose(); } }