| /******************************************************************************* |
| * Copyright (c) 2007, 2009 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.p2.examples.rcp.sdkbundlevisibility.p2; |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| import org.eclipse.equinox.internal.provisional.p2.metadata.IInstallableUnit; |
| import org.eclipse.equinox.internal.provisional.p2.ui.ElementQueryDescriptor; |
| import org.eclipse.equinox.internal.provisional.p2.ui.ProvUI; |
| import org.eclipse.equinox.internal.provisional.p2.ui.QueryableMetadataRepositoryManager; |
| import org.eclipse.equinox.internal.provisional.p2.ui.actions.UpdateAction; |
| import org.eclipse.equinox.internal.provisional.p2.ui.model.ProfileElement; |
| import org.eclipse.equinox.internal.provisional.p2.ui.policy.Policy; |
| import org.eclipse.equinox.internal.provisional.p2.ui.policy.RepositoryManipulator; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| |
| /** |
| * UpdateHandler invokes the check for updates UI |
| * |
| * @since 3.4 |
| */ |
| public class UpdateHandler extends PreloadingRepositoryHandler { |
| |
| boolean hasNoRepos = false; |
| |
| /** |
| * The constructor. |
| */ |
| public UpdateHandler() { |
| // constructor |
| } |
| |
| protected void doExecute(String profileId, QueryableMetadataRepositoryManager manager) { |
| if (hasNoRepos) { |
| boolean goToSites = MessageDialog.openQuestion(getShell(), Messages.UpdateHandler_NoSitesTitle, Messages.UpdateHandler_NoSitesMessage); |
| if (goToSites) { |
| Policy.getDefault().getRepositoryManipulator().manipulateRepositories(getShell()); |
| } |
| return; |
| } |
| // get the profile roots |
| ElementQueryDescriptor queryDescriptor = Policy.getDefault().getQueryProvider().getQueryDescriptor(new ProfileElement(null, profileId)); |
| Collection collection = queryDescriptor.performQuery(null); |
| final IInstallableUnit[] roots = new IInstallableUnit[collection.size()]; |
| Iterator iter = collection.iterator(); |
| int i = 0; |
| while (iter.hasNext()) { |
| roots[i] = (IInstallableUnit) ProvUI.getAdapter(iter.next(), IInstallableUnit.class); |
| i++; |
| } |
| // now create an update action whose selection is all the roots |
| UpdateAction action = new UpdateAction(Policy.getDefault(), new ISelectionProvider() { |
| |
| public void addSelectionChangedListener(ISelectionChangedListener listener) { |
| // not dynamic |
| } |
| |
| public ISelection getSelection() { |
| return new StructuredSelection(roots); |
| } |
| |
| public void removeSelectionChangedListener(ISelectionChangedListener listener) { |
| // not dynamic |
| } |
| |
| public void setSelection(ISelection selection) { |
| // not mutable |
| |
| } |
| }, profileId, false); |
| action.setRepositoryManager(manager); |
| action.run(); |
| } |
| |
| protected boolean preloadRepositories() { |
| hasNoRepos = false; |
| RepositoryManipulator repoMan = Policy.getDefault().getRepositoryManipulator(); |
| if (repoMan != null && repoMan.getKnownRepositories().length == 0) { |
| hasNoRepos = true; |
| return false; |
| } |
| return super.preloadRepositories(); |
| } |
| } |