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/*******************************************************************************
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* Copyright (c) 2009 IBM Corporation and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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******************************************************************************/
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package eu.etaxonomy.taxeditor;
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import org.apache.log4j.Logger;
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import org.eclipse.core.runtime.IProgressMonitor;
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import org.eclipse.core.runtime.IStatus;
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import org.eclipse.core.runtime.OperationCanceledException;
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import org.eclipse.core.runtime.SubMonitor;
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import org.eclipse.equinox.p2.core.IProvisioningAgent;
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import org.eclipse.equinox.p2.operations.ProvisioningJob;
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import org.eclipse.equinox.p2.operations.ProvisioningSession;
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import org.eclipse.equinox.p2.operations.UpdateOperation;
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/**
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* This class shows an example for checking for updates and performing the
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* update synchronously. It is up to the caller to run this in a job if
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* a background update check is desired. This is a reasonable way to run an
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* operation when user intervention is not required. Another approach is
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* to separately perform the resolution and provisioning steps, deciding
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* whether to perform these synchronously or in a job.
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*
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* Any p2 operation can be run modally (synchronously), or the job
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* can be requested and scheduled by the caller.
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*
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* @see UpdateOperation#resolveModal(IProgressMonitor)
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* @see UpdateOperation#getResolveJob(IProgressMonitor)
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* @see UpdateOperation#getProvisioningJob(IProgressMonitor)
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* @see UpdateOperation#resolveModal(IProgressMonitor)
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* @see UpdateOperation#getResolveJob(IProgressMonitor)
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* @see UpdateOperation#getProvisioningJob(IProgressMonitor)
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* @see UpdateOperation#resolveModal(IProgressMonitor)
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* @see UpdateOperation#getResolveJob(IProgressMonitor)
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* @see UpdateOperation#getProvisioningJob(IProgressMonitor)
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* @author n.hoffmann
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* @version $Id: $
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*/
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public class P2Util {
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private static final Logger logger = Logger.getLogger(P2Util.class);
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// XXX Check for updates to this application and return a status.
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static IStatus checkForUpdates(IProvisioningAgent agent, IProgressMonitor monitor) throws OperationCanceledException {
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ProvisioningSession session = new ProvisioningSession(agent);
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// the default update operation looks for updates to the currently
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// running profile, using the default profile root marker. To change
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// which installable units are being updated, use the more detailed
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// constructors.
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UpdateOperation operation = new UpdateOperation(session);
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SubMonitor sub = SubMonitor.convert(monitor,
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"Checking for application updates...", 200);
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IStatus status = operation.resolveModal(sub.newChild(100));
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if (status.getCode() == UpdateOperation.STATUS_NOTHING_TO_UPDATE) {
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return status;
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}
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if (status.getSeverity() == IStatus.CANCEL)
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throw new OperationCanceledException();
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if (status.getSeverity() != IStatus.ERROR) {
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// More complex status handling might include showing the user what updates
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// are available if there are multiples, differentiating patches vs. updates, etc.
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// In this example, we simply update as suggested by the operation.
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ProvisioningJob job = operation.getProvisioningJob(null);
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if(job == null){
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return status;
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}
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status = job.runModal(sub.newChild(100));
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if (status.getSeverity() == IStatus.CANCEL)
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throw new OperationCanceledException();
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}
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return status;
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}
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}
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