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/*******************************************************************************
* 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
* EclipseSource - ongoing development
* Sonatype, Inc. - ongoing development
*******************************************************************************/
package org.eclipse.equinox.internal.p2.ui.query;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.runtime.*;
import org.eclipse.equinox.internal.p2.ui.ProvUIMessages;
import org.eclipse.equinox.p2.engine.ProvisioningContext;
import org.eclipse.equinox.p2.metadata.IInstallableUnit;
import org.eclipse.equinox.p2.planner.IPlanner;
import org.eclipse.equinox.p2.query.*;
import org.eclipse.equinox.p2.ui.ProvisioningUI;
/**
* An object that implements a query for available updates
*/
public class QueryableUpdates implements IQueryable<IInstallableUnit> {
private IInstallableUnit[] iusToUpdate;
ProvisioningUI ui;
public QueryableUpdates(ProvisioningUI ui, IInstallableUnit[] iusToUpdate) {
this.ui = ui;
this.iusToUpdate = iusToUpdate;
}
@Override
public IQueryResult<IInstallableUnit> query(IQuery<IInstallableUnit> query, IProgressMonitor monitor) {
if (monitor == null)
monitor = new NullProgressMonitor();
int totalWork = 2000;
monitor.beginTask(ProvUIMessages.QueryableUpdates_UpdateListProgress, totalWork);
IPlanner planner = (IPlanner) ui.getSession().getProvisioningAgent().getService(IPlanner.SERVICE_NAME);
try {
Set<IInstallableUnit> allUpdates = new HashSet<>();
for (int i = 0; i < iusToUpdate.length; i++) {
if (monitor.isCanceled())
return Collector.emptyCollector();
IQueryResult<IInstallableUnit> updates = planner.updatesFor(iusToUpdate[i], new ProvisioningContext(ui.getSession().getProvisioningAgent()), new SubProgressMonitor(monitor, totalWork / 2 / iusToUpdate.length));
allUpdates.addAll(updates.toUnmodifiableSet());
}
return query.perform(allUpdates.iterator());
} catch (OperationCanceledException e) {
// Nothing more to do, return result
return Collector.emptyCollector();
} finally {
monitor.done();
}
}
}
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