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/*******************************************************************************
* Copyright (c) 2007, 2017 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* WindRiver - https://bugs.eclipse.org/bugs/show_bug.cgi?id=227372
*******************************************************************************/
package org.eclipse.equinox.internal.p2.engine.phases;
import java.util.*;
import org.eclipse.core.runtime.*;
import org.eclipse.equinox.internal.p2.engine.*;
import org.eclipse.equinox.internal.p2.repository.DownloadPauseResumeEvent;
import org.eclipse.equinox.internal.provisional.p2.core.eventbus.IProvisioningEventBus;
import org.eclipse.equinox.p2.core.IProvisioningAgent;
import org.eclipse.equinox.p2.engine.*;
import org.eclipse.equinox.p2.engine.spi.ProvisioningAction;
import org.eclipse.equinox.p2.metadata.IInstallableUnit;
import org.eclipse.equinox.p2.metadata.ITouchpointType;
import org.eclipse.equinox.p2.repository.artifact.IArtifactRequest;
import org.eclipse.osgi.util.NLS;
/**
* The goal of the collect phase is to ask the touchpoints if the artifacts associated with an IU need to be downloaded.
*/
public class Collect extends InstallableUnitPhase {
public static final String PARM_ARTIFACT_REQUESTS = "artifactRequests"; //$NON-NLS-1$
public static final String NO_ARTIFACT_REPOSITORIES_AVAILABLE = "noArtifactRepositoriesAvailable"; //$NON-NLS-1$
private IProvisioningAgent agent = null;
public Collect(int weight) {
super(PhaseSetFactory.PHASE_COLLECT, weight);
//re-balance work since postPerform will do almost all the time-consuming work
prePerformWork = 0;
mainPerformWork = 100;
postPerformWork = 1000;
}
@Override
protected boolean isApplicable(InstallableUnitOperand op) {
return (op.second() != null && !op.second().equals(op.first()));
}
@Override
protected List<ProvisioningAction> getActions(InstallableUnitOperand operand) {
IInstallableUnit unit = operand.second();
List<ProvisioningAction> parsedActions = getActions(unit, phaseId);
if (parsedActions != null)
return parsedActions;
ITouchpointType type = unit.getTouchpointType();
if (type == null || type == ITouchpointType.NONE)
return null;
String actionId = getActionManager().getTouchpointQualifiedActionId(phaseId, type);
ProvisioningAction action = getActionManager().getAction(actionId, null);
if (action == null) {
return null;
}
return Collections.singletonList(action);
}
@Override
protected String getProblemMessage() {
return Messages.Phase_Collect_Error;
}
@Override
protected IStatus completePhase(IProgressMonitor monitor, IProfile profile, Map<String, Object> parameters) {
// do nothing for rollback if the provisioning has been cancelled
if (monitor.isCanceled())
return Status.OK_STATUS;
@SuppressWarnings("unchecked")
List<IArtifactRequest[]> artifactRequests = (List<IArtifactRequest[]>) parameters.get(PARM_ARTIFACT_REQUESTS);
// it happens when rollbacking
if (artifactRequests.size() == 0)
return Status.OK_STATUS;
ProvisioningContext context = (ProvisioningContext) parameters.get(PARM_CONTEXT);
synchronized (this) {
agent = (IProvisioningAgent) parameters.get(PARM_AGENT);
}
if (isPaused) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
return new Status(IStatus.ERROR, EngineActivator.ID, NLS.bind(Messages.phase_thread_interrupted_error, phaseId), e);
}
if (monitor.isCanceled())
return Status.CANCEL_STATUS;
}
List<IArtifactRequest> totalArtifactRequests = new ArrayList<>(artifactRequests.size());
DownloadManager dm = new DownloadManager(context, agent);
for (IArtifactRequest[] requests : artifactRequests) {
for (int i = 0; i < requests.length; i++) {
dm.add(requests[i]);
totalArtifactRequests.add(requests[i]);
}
}
IProvisioningEventBus bus = (IProvisioningEventBus) agent.getService(IProvisioningEventBus.SERVICE_NAME);
if (bus != null)
bus.publishEvent(new CollectEvent(CollectEvent.TYPE_OVERALL_START, null, context, totalArtifactRequests.toArray(new IArtifactRequest[totalArtifactRequests.size()])));
IStatus downloadStatus = dm.start(monitor);
try {
return downloadStatus;
} finally {
if (downloadStatus.isOK() && bus != null)
bus.publishEvent(new CollectEvent(CollectEvent.TYPE_OVERALL_END, null, context, totalArtifactRequests.toArray(new IArtifactRequest[totalArtifactRequests.size()])));
synchronized (this) {
agent = null;
}
}
}
@Override
protected IStatus initializePhase(IProgressMonitor monitor, IProfile profile, Map<String, Object> parameters) {
parameters.put(PARM_ARTIFACT_REQUESTS, new ArrayList<IArtifactRequest[]>());
return null;
}
@Override
protected void setPaused(boolean isPaused) {
super.setPaused(isPaused);
firePauseEventToDownloadJobs();
}
private void firePauseEventToDownloadJobs() {
synchronized (this) {
if (agent != null) {
IProvisioningEventBus bus = (IProvisioningEventBus) agent.getService(IProvisioningEventBus.SERVICE_NAME);
if (bus != null)
bus.publishEvent(new DownloadPauseResumeEvent(isPaused ? DownloadPauseResumeEvent.TYPE_PAUSE : DownloadPauseResumeEvent.TYPE_RESUME));
}
}
}
@Override
protected IStatus initializeOperand(IProfile profile, InstallableUnitOperand operand, Map<String, Object> parameters, IProgressMonitor monitor) {
IStatus status = super.initializeOperand(profile, operand, parameters, monitor);
// defer setting the IU until after the super method to avoid triggering touchpoint initialization
IInstallableUnit iu = operand.second();
parameters.put(PARM_IU, iu);
return status;
}
}
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