<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
            <repository location="https://download.eclipse.org/releases/2024-09"/>
            <unit id="org.eclipse.equinox.p2.core.feature.feature.group" version="0.0.0"/>
        </location>

package com.vogella.tasks.update.handlers;

import java.net.URI;
import java.net.URISyntaxException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.IJobChangeEvent;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.core.runtime.jobs.JobChangeAdapter;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.ui.workbench.IWorkbench;
import org.eclipse.equinox.p2.core.IProvisioningAgent;

import org.eclipse.equinox.p2.operations.ProvisioningJob;

import org.eclipse.equinox.p2.operations.ProvisioningSession;

import org.eclipse.equinox.p2.operations.UpdateOperation;

public class UpdateHandler {

    private static final String REPOSITORY_LOC = System.getProperty("UpdateHandler.Repo", "http://localhost/repository");

    private IWorkbench workbench;

    @Execute
    public void execute(final IProvisioningAgent agent, IWorkbench workbench) {
        this.workbench = workbench;
        Job updateJob = Job.create("Update Job", monitor -> {
            performUpdates(agent, monitor);
        });
        updateJob.schedule();

    }

    private IStatus performUpdates(final IProvisioningAgent agent, IProgressMonitor monitor) {
        // configure update operation
        final ProvisioningSession session = new ProvisioningSession(agent);
        final UpdateOperation operation = new UpdateOperation(session);
        // create uri and check for validity

        URI uri = null;

        try {
            uri = new URI(REPOSITORY_LOC);
        } catch (URISyntaxException e) {
            throw new OperationCanceledException("Invalid repository location");

        }

        operation.getProvisioningContext().setArtifactRepositories(uri);
        operation.getProvisioningContext().setMetadataRepositories(uri);

        // check for updates, this causes I/O

        final IStatus status = operation.resolveModal(monitor);

        // failed to find updates (inform user and exit)

        if (status.getCode() == UpdateOperation.STATUS_NOTHING_TO_UPDATE) {
            return Status.CANCEL_STATUS;
        }

        // run installation
        ProvisioningJob provisioningJob = operation.getProvisioningJob(monitor);

        // updates cannot run from within Eclipse IDE!!!

        if (provisioningJob == null) {
            return Status.CANCEL_STATUS;

        }

        configureProvisioningJob(provisioningJob);
        provisioningJob.schedule();
        return Status.OK_STATUS;

    }

    private void configureProvisioningJob(ProvisioningJob provisioningJob) {

        // register a job change listener to track

        // installation progress and restart application in case of updates

        provisioningJob.addJobChangeListener(new JobChangeAdapter() {
            @Override
            public void done(IJobChangeEvent event) {
                if (event.getResult().isOK()) {
                    workbench.restart();
                }
                super.done(event);
            }
        });
    }
}