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/*******************************************************************************
* 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.cloud.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();
}
}
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