Java tutorial
/* * Copyright 2010-2011 Amazon Technologies, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://aws.amazon.com/apache2.0 * * This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES * OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and * limitations under the License. */ package com.amazonaws.eclipse.elasticbeanstalk.server.ui; import org.eclipse.core.databinding.beans.PojoObservables; import org.eclipse.jface.databinding.swt.ISWTObservableValue; import org.eclipse.jface.databinding.swt.SWTObservables; import org.eclipse.jface.databinding.viewers.IViewerObservableValue; import org.eclipse.jface.databinding.viewers.ViewersObservables; import org.eclipse.jface.fieldassist.ControlDecoration; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; 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.Text; import org.eclipse.wst.server.ui.wizard.IWizardHandle; import com.amazonaws.eclipse.core.AwsToolkitCore; import com.amazonaws.eclipse.ec2.ui.keypair.KeyPairComposite; import com.amazonaws.eclipse.elasticbeanstalk.deploy.DeployWizardDataModel; import com.amazonaws.eclipse.elasticbeanstalk.server.ui.databinding.ChainValidator; import com.amazonaws.eclipse.elasticbeanstalk.server.ui.databinding.DecorationChangeListener; import com.amazonaws.eclipse.elasticbeanstalk.server.ui.databinding.NoInvalidNameCharactersValidator; import com.amazonaws.eclipse.elasticbeanstalk.server.ui.databinding.NotEmptyValidator; import com.amazonaws.eclipse.elasticbeanstalk.server.ui.databinding.ValidKeyPairValidator; class DeployWizardEnvironmentConfigPage extends AbstractDeployWizardPage { private KeyPairComposite keyPairComposite; private Button usingCnameButton; private Text cname; private Button usingKeyPair; private ISWTObservableValue usingKeyPairObservable; private ISWTObservableValue usingCnameObservable; private ISWTObservableValue healthCheckURLObservable; private ISWTObservableValue sslCertObservable; private ISWTObservableValue snsTopicObservable; public DeployWizardEnvironmentConfigPage(DeployWizardDataModel wizardDataModel) { super(wizardDataModel); setComplete(true); } @Override public Composite createComposite(Composite parent, IWizardHandle handle) { wizardHandle = handle; handle.setImageDescriptor( AwsToolkitCore.getDefault().getImageRegistry().getDescriptor(AwsToolkitCore.IMAGE_AWS_LOGO)); Composite composite = new Composite(parent, SWT.NONE); composite.setLayout(new GridLayout(1, false)); createKeyPairComposite(composite); createSSLCertControls(composite); createCNAMEControls(composite); createHealthCheckURLControls(composite); createSNSTopicControls(composite); bindControls(); initializeDefaults(); return composite; } private void createKeyPairComposite(Composite composite) { usingKeyPair = newCheckbox(composite, "Deploy with a key pair", 1); keyPairComposite = new KeyPairComposite(composite); usingKeyPair.addSelectionListener(new SelectionAdapter() { @Override public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } @Override public void widgetSelected(SelectionEvent e) { keyPairComposite.setEnabled(usingKeyPair.getSelection()); } }); GridData layoutData = new GridData(SWT.FILL, SWT.TOP, true, false); layoutData.heightHint = 140; keyPairComposite.setLayoutData(layoutData); } private void createSSLCertControls(Composite composite) { newLabel(composite, "SSL certificate Id"); Text text = newText(composite, ""); sslCertObservable = SWTObservables.observeText(text, SWT.Modify); } private void createCNAMEControls(Composite composite) { usingCnameButton = newCheckbox(composite, "Assign CNAME to new server", 1); cname = newText(composite); usingCnameButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { cname.setEnabled(usingCnameButton.getSelection()); } }); } private void createHealthCheckURLControls(Composite composite) { newLabel(composite, "Application health check URL"); Text text = newText(composite, "/"); healthCheckURLObservable = SWTObservables.observeText(text, SWT.Modify); } private void createSNSTopicControls(Composite composite) { newLabel(composite, "Email address for notifications"); Text text = newText(composite, ""); snsTopicObservable = SWTObservables.observeText(text, SWT.Modify); } private void initializeDefaults() { usingCnameObservable.setValue(false); usingKeyPairObservable.setValue(false); keyPairComposite.setEnabled(false); cname.setEnabled(false); cname.setText(""); sslCertObservable.setValue(""); snsTopicObservable.setValue(""); healthCheckURLObservable.setValue("/"); // No change event is necessarily fired from the above updates, so we // fire one manually in order to display the appropriate button enablement changeListener.handleChange(null); } /** * Creates validation bindings for the controls on this page. */ private void bindControls() { initializeValidators(); // Key pair usingKeyPairObservable = SWTObservables.observeSelection(usingKeyPair); bindingContext.bindValue(usingKeyPairObservable, PojoObservables.observeValue(wizardDataModel, DeployWizardDataModel.USING_KEY_PAIR), null, null); IViewerObservableValue keyPairSelectionObservable = ViewersObservables .observeSingleSelection(keyPairComposite.getViewer()); bindingContext.bindValue(keyPairSelectionObservable, PojoObservables.observeValue(wizardDataModel, DeployWizardDataModel.KEY_PAIR), null, null); ChainValidator<String> keyPairValidator = new ChainValidator<String>(keyPairSelectionObservable, usingKeyPairObservable, new ValidKeyPairValidator(AwsToolkitCore.getDefault().getCurrentAccountId())); bindingContext.addValidationStatusProvider(keyPairValidator); usingCnameObservable = SWTObservables.observeSelection(usingCnameButton); bindingContext.bindValue(usingCnameObservable, PojoObservables.observeValue(wizardDataModel, DeployWizardDataModel.USING_CNAME), null, null) .updateTargetToModel(); bindingContext .bindValue(SWTObservables.observeText(cname, SWT.Modify), PojoObservables.observeValue(wizardDataModel, DeployWizardDataModel.CNAME), null, null) .updateTargetToModel(); // SSL cert bindingContext.bindValue(sslCertObservable, PojoObservables.observeValue(wizardDataModel, DeployWizardDataModel.SSL_CERTIFICATE_ID)); // CNAME // TODO: make CNAME conform to exact spec, check for in-use ChainValidator<String> chainValidator = new ChainValidator<String>( SWTObservables.observeText(cname, SWT.Modify), usingCnameObservable, new NotEmptyValidator("CNAME cannot be empty."), new NoInvalidNameCharactersValidator("Invalid characters in CNAME.")); bindingContext.addValidationStatusProvider(chainValidator); ControlDecoration cnameDecoration = newControlDecoration(cname, "Enter a CNAME to launch your server"); new DecorationChangeListener(cnameDecoration, chainValidator.getValidationStatus()); // Health check URL bindingContext.bindValue(healthCheckURLObservable, PojoObservables.observeValue(wizardDataModel, DeployWizardDataModel.HEALTH_CHECK_URL)); // SNS topic bindingContext.bindValue(snsTopicObservable, PojoObservables.observeValue(wizardDataModel, DeployWizardDataModel.SNS_ENDPOINT)); } @Override protected void radioButtonSelected(Object sourceButton) { } @Override public String getPageTitle() { return "Advanced configuration"; } @Override public String getPageDescription() { return "Specify advanced properties for your environment"; } }