Java tutorial
/* * Copyright 2012 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * A copy of the License is located at * * http://aws.amazon.com/apache2.0 * * or in the "license" file accompanying this file. 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.android.sdk.newproject; import org.eclipse.core.databinding.AggregateValidationStatus; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.UpdateValueStrategy; import org.eclipse.core.databinding.beans.PojoObservables; import org.eclipse.core.databinding.observable.ChangeEvent; import org.eclipse.core.databinding.observable.IChangeListener; import org.eclipse.core.databinding.observable.value.AbstractObservableValue; import org.eclipse.core.databinding.observable.value.IObservableValue; import org.eclipse.core.databinding.observable.value.ValueDiff; import org.eclipse.core.databinding.validation.IValidator; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.IJobChangeEvent; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.core.runtime.jobs.JobChangeAdapter; import org.eclipse.jface.databinding.swt.ISWTObservableValue; import org.eclipse.jface.databinding.swt.SWTObservables; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; 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.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.ProgressBar; import org.eclipse.swt.widgets.Text; import com.amazonaws.eclipse.android.sdk.AndroidSDKPlugin; import com.amazonaws.eclipse.android.sdk.AndroidSdkInstall; import com.amazonaws.eclipse.android.sdk.AndroidSdkManager; import com.amazonaws.eclipse.sdk.ui.JavaSdkPlugin; import com.android.ide.eclipse.adt.internal.sdk.Sdk; import com.android.sdklib.IAndroidTarget; import com.android.sdkuilib.internal.widgets.SdkTargetSelector; public class AndroidProjectWizardPage extends WizardPage { private static final class AndroidTargetValidator implements IValidator { public IStatus validate(Object value) { if (value instanceof IAndroidTarget) return Status.OK_STATUS; return new Status(IStatus.ERROR, AndroidSDKPlugin.PLUGIN_ID, "Please select an Android platform version"); } } private final static class PackageNameValidator implements IValidator { public IStatus validate(Object value) { if (value instanceof String) { String s = (String) value; if (s != null && s.length() > 0) return Status.OK_STATUS; } return new Status(IStatus.ERROR, AndroidSDKPlugin.PLUGIN_ID, "Please enter a Java package name"); } } private final static class ProjectNameValidator implements IValidator { public IStatus validate(Object value) { if (value instanceof String) { String s = (String) value; if (s != null && s.length() > 0) return Status.OK_STATUS; } return new Status(IStatus.ERROR, AndroidSDKPlugin.PLUGIN_ID, "Please enter a project name"); } } private Text projectNameText; private Text packageNameText; protected DataBindingContext bindingContext = new DataBindingContext(); private final NewAndroidProjectDataModel dataModel; private AggregateValidationStatus aggregateValidationStatus; private Composite androidTargetSelectorComposite; private SdkTargetSelector sdkTargetSelector; private Button sampleCodeButton; private boolean sdkInstalled = false; protected AndroidProjectWizardPage(NewAndroidProjectDataModel dataModel) { super("New AWS Android Project"); this.dataModel = dataModel; setMessage("Enter a project name and select and Android target platform."); } public void createControl(Composite parent) { final Composite composite = new Composite(parent, SWT.NONE); composite.setLayout(new GridLayout(2, false)); setControl(composite); GridDataFactory factory = GridDataFactory.fillDefaults(); factory.grab(true, false); new Label(composite, SWT.NONE).setText("Project Name:"); projectNameText = new Text(composite, SWT.BORDER); factory.applyTo(projectNameText); new Label(composite, SWT.NONE).setText("Java Package Name:"); packageNameText = new Text(composite, SWT.BORDER); factory.applyTo(packageNameText); sampleCodeButton = new Button(composite, SWT.CHECK); sampleCodeButton.setText("Start with sample application"); sampleCodeButton.setSelection(true); factory.copy().span(2, 1).applyTo(packageNameText); androidTargetSelectorComposite = new Composite(composite, SWT.NONE); androidTargetSelectorComposite.setLayout(new GridLayout()); GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, false); gridData.horizontalSpan = 2; gridData.heightHint = 200; androidTargetSelectorComposite.setLayoutData(gridData); sdkTargetSelector = new SdkTargetSelector(androidTargetSelectorComposite, null); IAndroidTarget[] targets = new IAndroidTarget[0]; if (Sdk.getCurrent() != null) { targets = Sdk.getCurrent().getTargets(); } sdkTargetSelector.setTargets(targets); // Check to see if we have an SDK. If we don't, we need to wait before // continuing AndroidSdkManager sdkManager = AndroidSdkManager.getInstance(); synchronized (sdkManager) { AndroidSdkInstall defaultSDKInstall = sdkManager.getDefaultSdkInstall(); if (defaultSDKInstall != null) { sdkInstalled = true; } else { setPageComplete(false); Job installationJob = sdkManager.getInstallationJob(); if (installationJob == null) { JavaSdkPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, JavaSdkPlugin.PLUGIN_ID, "Unable to check status of AWS SDK for Android download")); return; } final Composite pleaseWait = new Composite(composite, SWT.None); pleaseWait.setLayout(new GridLayout(1, false)); GridData layoutData = new GridData(GridData.FILL_HORIZONTAL); layoutData.horizontalSpan = 2; pleaseWait.setLayoutData(layoutData); Label label = new Label(pleaseWait, SWT.None); label.setText("The AWS SDK for Android is currently downloading. Please wait while it completes."); label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); ProgressBar progressBar = new ProgressBar(pleaseWait, SWT.INDETERMINATE); progressBar.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); installationJob.addJobChangeListener(new JobChangeAdapter() { @Override public void done(IJobChangeEvent event) { Display.getDefault().syncExec(new Runnable() { public void run() { sdkInstalled = true; pleaseWait.dispose(); composite.getParent().layout(); composite.getShell().pack(true); composite.getParent().redraw(); updateErrorMessage(); } }); } }); } } bindControls(); updateErrorMessage(); } public static class AndroidTargetObservableValue extends AbstractObservableValue { private final SdkTargetSelector sdkTargetSelector; private IAndroidTarget androidTarget; public AndroidTargetObservableValue(final SdkTargetSelector sdkTargetSelector) { this.sdkTargetSelector = sdkTargetSelector; sdkTargetSelector.setSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { AndroidTargetObservableValue.this.setValue(sdkTargetSelector.getSelected()); } public void widgetDefaultSelected(SelectionEvent e) { System.out.println("Default selected!"); } }); } public Object getValueType() { return IAndroidTarget.class; } @Override protected Object doGetValue() { return androidTarget; } @Override protected void doSetValue(final Object value) { final Object oldValue = androidTarget; this.androidTarget = (IAndroidTarget) value; AndroidTargetObservableValue.this.fireValueChange(new ValueDiff() { @Override public Object getOldValue() { return oldValue; } @Override public Object getNewValue() { return value; } }); } } private void bindControls() { ISWTObservableValue projectNameTextObservableValue = SWTObservables.observeText(projectNameText, SWT.Modify); IObservableValue projectNameDataModelObservableValue = PojoObservables.observeValue(dataModel, "projectName"); bindingContext.bindValue(projectNameTextObservableValue, projectNameDataModelObservableValue, new UpdateValueStrategy().setAfterConvertValidator(new ProjectNameValidator()), null); ISWTObservableValue packageNameTextObservableValue = SWTObservables.observeText(packageNameText, SWT.Modify); IObservableValue packageNameDataModelObservableValue = PojoObservables.observeValue(dataModel, "packageName"); bindingContext.bindValue(packageNameTextObservableValue, packageNameDataModelObservableValue, new UpdateValueStrategy().setAfterConvertValidator(new PackageNameValidator()), null); ISWTObservableValue sampleCodeButtonObservableValue = SWTObservables.observeSelection(sampleCodeButton); IObservableValue sampleCodeDataModelObservableValue = PojoObservables.observeValue(dataModel, "sampleCodeIncluded"); bindingContext.bindValue(sampleCodeButtonObservableValue, sampleCodeDataModelObservableValue, null, null); IObservableValue androidTargetObservableValue = new AndroidTargetObservableValue(sdkTargetSelector); IObservableValue androidTargetModelObservableValue = PojoObservables.observeValue(dataModel, "androidTarget"); bindingContext.bindValue(androidTargetObservableValue, androidTargetModelObservableValue, new UpdateValueStrategy().setAfterConvertValidator(new AndroidTargetValidator()), null); aggregateValidationStatus = new AggregateValidationStatus(bindingContext.getBindings(), AggregateValidationStatus.MAX_SEVERITY); aggregateValidationStatus.addChangeListener(new IChangeListener() { public void handleChange(ChangeEvent event) { updateErrorMessage(); } }); } private void updateErrorMessage() { if (aggregateValidationStatus == null) return; IStatus status = (IStatus) aggregateValidationStatus.getValue(); if (sdkInstalled == false) { status = new Status(IStatus.ERROR, AndroidSDKPlugin.PLUGIN_ID, "No AWS SDK for Android available yet"); } if (Sdk.getCurrent() == null || Sdk.getCurrent().getTargets() == null || Sdk.getCurrent().getTargets().length == 0) { status = new Status(IStatus.ERROR, AndroidSDKPlugin.PLUGIN_ID, "No Android platforms installed yet - Use the Android SDK manager to install target Android platforms"); } if (status.getSeverity() == IStatus.OK) { AndroidProjectWizardPage.this.setErrorMessage(null); AndroidProjectWizardPage.this.setPageComplete(true); } else { AndroidProjectWizardPage.this.setErrorMessage(status.getMessage()); AndroidProjectWizardPage.this.setPageComplete(false); } } }