Java tutorial
/******************************************************************************* * Copyright (c) 2015 Red Hat, Inc. * Distributed under license by 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 ******************************************************************************/ package org.jboss.tools.openshift.internal.ui.wizard.deployimage; import java.util.List; import org.eclipse.core.databinding.Binding; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.beans.BeanProperties; import org.eclipse.core.databinding.validation.IValidator; import org.eclipse.core.databinding.validation.ValidationStatus; import org.eclipse.core.runtime.IStatus; import org.eclipse.jface.databinding.fieldassist.ControlDecorationSupport; import org.eclipse.jface.databinding.swt.WidgetProperties; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.wizard.IWizardPage; import org.eclipse.jface.wizard.Wizard; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Spinner; import org.eclipse.swt.widgets.Text; import org.jboss.tools.common.ui.databinding.ValueBindingBuilder; import org.jboss.tools.openshift.internal.common.ui.databinding.RequiredControlDecorationUpdater; import org.jboss.tools.openshift.internal.common.ui.wizard.AbstractOpenShiftWizardPage; import org.jboss.tools.openshift.internal.common.ui.wizard.OkCancelButtonWizardDialog; import com.openshift.restclient.model.IServicePort; /** * Dialog to configure the port mapping for a Docker Image to be deployed. */ public class ServicePortDialog extends AbstractOpenShiftWizardPage { static final String UNIQUE_ERROR = "The {0} port number must be unique among all the other ports exposed by this OpenShift service."; static final String PROPERTY_SERVICE_PORT = "port"; static final String PROPERTY_POD_PORT = "targetPort"; private final IServicePort model; private final List<IServicePort> ports; /** * Constructor * @param model * @param message * @param ports */ public ServicePortDialog(final IServicePort model, final String message, final List<IServicePort> ports) { super("Configure Service Ports", message, "", null); this.model = model; this.ports = ports; } @Override protected void doCreateControls(final Composite parent, final DataBindingContext dbc) { GridLayoutFactory.fillDefaults().margins(1, 1).applyTo(parent); final Composite dialogArea = new Composite(parent, SWT.NONE); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).grab(true, true).applyTo(dialogArea); GridLayoutFactory.fillDefaults().numColumns(2).applyTo(dialogArea); //service port final Label servicePortLabel = new Label(dialogArea, SWT.NONE); servicePortLabel.setText("Service port:"); GridDataFactory.fillDefaults().align(SWT.RIGHT, SWT.CENTER).applyTo(servicePortLabel); final Spinner servicePortSpinner = new Spinner(dialogArea, SWT.BORDER); servicePortSpinner.setMinimum(1); servicePortSpinner.setMaximum(65535); servicePortSpinner.setToolTipText("The port exposed by the service that will route to the pod."); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).applyTo(servicePortSpinner); final Binding servicePortBinding = ValueBindingBuilder .bind(WidgetProperties.selection().observe(servicePortSpinner)) .validatingAfterConvert(new ServicePortValidator(model.getPort(), this.ports)) .to(BeanProperties.value(PROPERTY_SERVICE_PORT).observe(model)).in(dbc); ControlDecorationSupport.create(servicePortBinding, SWT.LEFT | SWT.TOP, null, new RequiredControlDecorationUpdater()); // Pod port final Label podPortLabel = new Label(dialogArea, SWT.NONE); podPortLabel.setText("Pod port:"); GridDataFactory.fillDefaults().align(SWT.RIGHT, SWT.CENTER).applyTo(podPortLabel); final Text podPortText = new Text(dialogArea, SWT.BORDER); podPortText.setToolTipText( "The port exposed by the pod which will accept traffic.\nIt must be an integer or the name of a port in the backend Pods."); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).grab(true, false).applyTo(podPortText); final Binding podPortBinding = ValueBindingBuilder .bind(WidgetProperties.text(SWT.Modify).observe(podPortText)) .validatingAfterConvert(new PodPortValidator(this.model.getTargetPort(), this.ports)) .to(BeanProperties.value(PROPERTY_POD_PORT).observe(model)).in(dbc); ControlDecorationSupport.create(podPortBinding, SWT.LEFT | SWT.TOP, null, new RequiredControlDecorationUpdater()); } /** * Validates the Service Port */ static class ServicePortValidator implements IValidator { private static final IStatus SERVICE_PORT_ERROR = ValidationStatus.error(NLS.bind(UNIQUE_ERROR, "service")); private final int servicePort; private final List<IServicePort> ports; public ServicePortValidator(final int servicePort, final List<IServicePort> ports) { this.servicePort = servicePort; this.ports = ports; } @Override public IStatus validate(Object value) { Integer newPort = (Integer) value; if (servicePort != newPort) { for (IServicePort port : ports) { if (newPort.intValue() == port.getPort()) { return SERVICE_PORT_ERROR; } } } return ValidationStatus.OK_STATUS; } } /** * Opens this dialog. * * @return the return code, ie, the value of the button that the user * clicked to close the dialog. */ public int open() { final IWizardPage page = this; Wizard wizard = new Wizard() { @Override public boolean performFinish() { return true; } @Override public void addPages() { addPage(page); } }; wizard.setNeedsProgressMonitor(true); wizard.setWindowTitle("Service Ports"); this.setWizard(wizard); OkCancelButtonWizardDialog dialog = new OkCancelButtonWizardDialog(getShell(), wizard); return dialog.open(); } }