| /******************************************************************************* |
| * 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 (IArtifactRequest request : requests) { |
| dm.add(request); |
| totalArtifactRequests.add(request); |
| } |
| } |
| IProvisioningEventBus bus = agent.getService(IProvisioningEventBus.class); |
| 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 = agent.getService(IProvisioningEventBus.class); |
| 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; |
| } |
| |
| } |