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.resteasy; 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.ComputedValue; import org.eclipse.core.databinding.observable.value.IObservableValue; import org.eclipse.core.databinding.observable.value.WritableValue; 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.swt.SWT; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.forms.widgets.FormToolkit; import org.switchyard.tools.models.switchyard1_0.resteasy.ProxyType; import org.switchyard.tools.models.switchyard1_0.resteasy.RESTBindingType; import org.switchyard.tools.models.switchyard1_0.resteasy.ResteasyFactory; import org.switchyard.tools.models.switchyard1_0.resteasy.ResteasyPackage; import org.switchyard.tools.ui.editor.Messages; import org.switchyard.tools.ui.editor.databinding.EMFUpdateValueStrategyNullForEmptyString; import org.switchyard.tools.ui.editor.databinding.EscapedPropertyIntegerValidator; import org.switchyard.tools.ui.editor.databinding.ObservablesUtil; import org.switchyard.tools.ui.editor.databinding.SWTValueUpdater; import org.switchyard.tools.ui.editor.diagram.binding.AbstractSYBindingComposite; /** * @author bfitzpat * */ public class ResteasyProxyComposite extends AbstractSYBindingComposite { private Composite _panel; private RESTBindingType _binding = null; private Text _proxyHostText; private Text _proxyPortText; private Text _proxyUserText; private Text _proxyPasswordText; private WritableValue _bindingValue; ResteasyProxyComposite(FormToolkit toolkit) { super(toolkit); } @Override public String getTitle() { return Messages.title_proxySettings; } @Override public String getDescription() { return Messages.description_restProxySettings; } @Override public void createContents(Composite parent, int style, DataBindingContext context) { _panel = new Composite(parent, style); _panel.setLayout(new FillLayout()); getProxyTabControl(_panel); bindControls(context); } private Control getProxyTabControl(Composite tabFolder) { Composite composite = new Composite(tabFolder, SWT.NONE); GridLayout gl = new GridLayout(2, false); composite.setLayout(gl); _proxyHostText = createLabelAndText(composite, Messages.label_host); _proxyPortText = createLabelAndText(composite, Messages.label_port); _proxyUserText = createLabelAndText(composite, Messages.label_userName); _proxyPasswordText = createLabelAndText(composite, Messages.label_password); return composite; } protected void handleModify(Control control) { setHasChanged(false); setDidSomething(true); } /** * @return panel */ public Composite getPanel() { return _panel; } /** * @param switchYardBindingType binding */ public void setBinding(Binding switchYardBindingType) { super.setBinding(switchYardBindingType); if (switchYardBindingType instanceof RESTBindingType) { setTargetObject(switchYardBindingType.eContainer()); this._binding = (RESTBindingType) switchYardBindingType; _bindingValue.setValue(_binding); } else { _bindingValue.setValue(null); } } 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(_proxyHostText.getDisplay()); _bindingValue = new WritableValue(realm, null, RESTBindingType.class); final IObservableValue hostValue = new WritableValue(realm, null, String.class); final IObservableValue passwordValue = new WritableValue(realm, null, String.class); final IObservableValue portValue = new WritableValue(realm, null, String.class); final IObservableValue userValue = new WritableValue(realm, null, String.class); org.eclipse.core.databinding.Binding binding = context.bindValue( SWTObservables.observeText(_proxyHostText, SWT.Modify), hostValue, new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeText(_proxyPasswordText, SWT.Modify), passwordValue, new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeText(_proxyPortText, SWT.Modify), portValue, new EMFUpdateValueStrategyNullForEmptyString("", UpdateValueStrategy.POLICY_CONVERT) .setAfterConvertValidator(new EscapedPropertyIntegerValidator( "Port must be a valid numeric value or follow the pattern for escaped properties (i.e. '${propName}').")), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); binding = context.bindValue(SWTObservables.observeText(_proxyUserText, SWT.Modify), userValue, new EMFUpdateValueStrategyNullForEmptyString(null, UpdateValueStrategy.POLICY_CONVERT), null); ControlDecorationSupport.create(SWTValueUpdater.attach(binding), SWT.TOP | SWT.LEFT); ComputedValue computedProxy = new ComputedValue() { @Override protected Object calculate() { final String host = (String) hostValue.getValue(); final String pwd = (String) passwordValue.getValue(); final String port = (String) portValue.getValue(); final String user = (String) userValue.getValue(); if (host != null || pwd != null || port != null || user != null) { final ProxyType proxy = ResteasyFactory.eINSTANCE.createProxyType(); proxy.setHost(host); proxy.setPassword(pwd); proxy.setPort(port); proxy.setUser(user); return proxy; } return null; } protected void doSetValue(Object value) { if (value instanceof ProxyType) { final ProxyType proxy = (ProxyType) value; hostValue.setValue(proxy.getHost()); passwordValue.setValue(proxy.getPassword()); portValue.setValue(proxy.getPort()); userValue.setValue(proxy.getUser()); } else { hostValue.setValue(null); passwordValue.setValue(null); portValue.setValue(null); userValue.setValue(null); } getValue(); } }; // now bind the proxy into the binding binding = context.bindValue(computedProxy, ObservablesUtil.observeDetailValue(domain, _bindingValue, ResteasyPackage.Literals.REST_BINDING_TYPE__PROXY)); } /* (non-Javadoc) * @see org.switchyard.tools.ui.editor.diagram.shared.AbstractSwitchyardComposite#dispose() */ @Override public void dispose() { _bindingValue.dispose(); super.dispose(); } }