| /******************************************************************************* |
| * Copyright (c) 2008, 2010 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.equinox.internal.p2.ui.dialogs; |
| |
| import java.text.NumberFormat; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.equinox.internal.p2.ui.ProvUI; |
| import org.eclipse.equinox.internal.p2.ui.ProvUIMessages; |
| import org.eclipse.equinox.internal.p2.ui.model.IUElementListRoot; |
| import org.eclipse.equinox.p2.engine.IProvisioningPlan; |
| import org.eclipse.equinox.p2.engine.ProvisioningContext; |
| import org.eclipse.equinox.p2.metadata.IInstallableUnit; |
| import org.eclipse.equinox.p2.operations.ProfileChangeOperation; |
| import org.eclipse.equinox.p2.query.IQueryable; |
| import org.eclipse.equinox.p2.ui.LoadMetadataRepositoryJob; |
| import org.eclipse.equinox.p2.ui.ProvisioningUI; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Label; |
| |
| /** |
| * |
| * @since 3.5 |
| */ |
| public abstract class SizeComputingWizardPage extends ResolutionResultsWizardPage { |
| protected Label sizeInfo; |
| protected long size; |
| Job sizingJob; |
| private IProvisioningPlan lastComputedPlan = null; |
| |
| protected SizeComputingWizardPage(ProvisioningUI ui, ProvisioningOperationWizard wizard, IUElementListRoot root, ProfileChangeOperation initialResolution) { |
| super(ui, wizard, root, initialResolution); |
| // Compute size immediately if a plan is available. This may or may not finish before |
| // the widgetry is created. |
| if (initialResolution != null && initialResolution.hasResolved()) |
| computeSizing(initialResolution.getProvisioningPlan(), initialResolution.getProvisioningContext()); |
| else |
| // Set the size to indicate there is no size yet. |
| size = ProvUI.SIZE_NOTAPPLICABLE; |
| } |
| |
| protected void computeSizing(final IProvisioningPlan plan, final ProvisioningContext provisioningContext) { |
| if (plan == lastComputedPlan) |
| return; |
| lastComputedPlan = plan; |
| size = ProvUI.SIZE_UNKNOWN; |
| updateSizingInfo(); |
| if (sizingJob != null) |
| sizingJob.cancel(); |
| sizingJob = new Job(ProvUIMessages.SizeComputingWizardPage_SizeJobTitle) { |
| protected IStatus run(IProgressMonitor monitor) { |
| size = ProvUI.getSize(ProvUI.getEngine(getProvisioningUI().getSession()), plan, provisioningContext, monitor); |
| if (monitor.isCanceled()) |
| return Status.CANCEL_STATUS; |
| if (display != null) { |
| display.asyncExec(new Runnable() { |
| public void run() { |
| updateSizingInfo(); |
| } |
| }); |
| } |
| return Status.OK_STATUS; |
| } |
| |
| }; |
| sizingJob.setUser(false); |
| sizingJob.setSystem(true); |
| sizingJob.setProperty(LoadMetadataRepositoryJob.SUPPRESS_AUTHENTICATION_JOB_MARKER, Boolean.toString(true)); |
| sizingJob.schedule(); |
| } |
| |
| protected void createSizingInfo(Composite parent) { |
| sizeInfo = new Label(parent, SWT.NONE); |
| GridData data = new GridData(SWT.FILL, SWT.FILL, true, false); |
| sizeInfo.setLayoutData(data); |
| updateSizingInfo(); |
| } |
| |
| protected void updateSizingInfo() { |
| if (sizeInfo != null && !sizeInfo.isDisposed()) { |
| if (size == ProvUI.SIZE_NOTAPPLICABLE) |
| sizeInfo.setVisible(false); |
| else { |
| sizeInfo.setText(NLS.bind(ProvUIMessages.UpdateOrInstallWizardPage_Size, getFormattedSize())); |
| sizeInfo.setVisible(true); |
| } |
| } |
| } |
| |
| protected String getFormattedSize() { |
| if (size == ProvUI.SIZE_UNKNOWN || size == ProvUI.SIZE_UNAVAILABLE) |
| return ProvUIMessages.IUDetailsLabelProvider_Unknown; |
| if (size > 1000L) { |
| long kb = size / 1000L; |
| return NLS.bind(ProvUIMessages.IUDetailsLabelProvider_KB, NumberFormat.getInstance().format(new Long(kb))); |
| } |
| return NLS.bind(ProvUIMessages.IUDetailsLabelProvider_Bytes, NumberFormat.getInstance().format(new Long(size))); |
| } |
| |
| public void dispose() { |
| if (sizingJob != null) { |
| sizingJob.cancel(); |
| sizingJob = null; |
| } |
| } |
| |
| public void updateStatus(IUElementListRoot root, ProfileChangeOperation op) { |
| super.updateStatus(root, op); |
| if (op != null && op.getProvisioningPlan() != null) |
| computeSizing(op.getProvisioningPlan(), op.getProvisioningContext()); |
| } |
| |
| protected IQueryable<IInstallableUnit> getQueryable(IProvisioningPlan plan) { |
| return plan.getAdditions(); |
| } |
| } |