Examples with UpdateSiteMetadataRepositoryFactory org.eclipse.equinox.internal.p2.updatesite.metadata.UpdateSiteMetadataRepositoryFactory used on opensource projects

Example 1 with UpdateSiteMetadataRepositoryFactory

use of org.eclipse.equinox.internal.p2.updatesite.metadata.UpdateSiteMetadataRepositoryFactory in project webtools.servertools by eclipse.

the class ExtensionUpdateSite method getExtensions.

public List<IServerExtension> getExtensions(IProgressMonitor monitor) throws CoreException, ProvisionException {
    URI url2 = null;
    IMetadataRepositoryManager manager = null;
    IProvisioningAgent agent = null;
    List<IServerExtension> list = new ArrayList<IServerExtension>();
    URI[] existingSites = null;
    try {
        /*
			 * To discovery the server adapter, there are three methods:
			 * 1. Looking at the site.xml (if it exists). This is the legacy method
			 * 2. Looking for the org.eclipse.wst.server.core.serverAdapter property in a p2
			 *    update site (that may not have a site.xml). The property is necessary to identify
			 *    the InstallableUnit as a server type. Otherwise, all the InstallableUnits will show
			 *    up regardless of whether it is a server or not
			 * 3. If the user created the p2 update site using a category.xml file (migrating old site.xml
			 *    to use category.xml)
			 */
        BundleContext bd = org.eclipse.wst.server.discovery.internal.Activator.getDefault().getBundle().getBundleContext();
        agent = ExtensionUtility.getAgent(bd);
        url2 = new URI(url);
        // Method 1: Looking at the site.xml
        UpdateSiteMetadataRepositoryFactory mrf = new UpdateSiteMetadataRepositoryFactory();
        mrf.setAgent(ExtensionUtility.getAgent(bd));
        manager = (IMetadataRepositoryManager) agent.getService(IMetadataRepositoryManager.SERVICE_NAME);
        // Sites already existing for both enabled and disabled
        URI[] existingSitesAll = manager.getKnownRepositories(IMetadataRepositoryManager.REPOSITORIES_ALL);
        URI[] existingSitesDisabled = manager.getKnownRepositories(IMetadataRepositoryManager.REPOSITORIES_DISABLED);
        int existingSitesAllLen = existingSitesAll == null ? 0 : existingSitesAll.length;
        int existingSitesDisabledLen = existingSitesDisabled == null ? 0 : existingSitesDisabled.length;
        existingSites = new URI[existingSitesAllLen + existingSitesDisabledLen];
        if (existingSitesAllLen > 0) {
            System.arraycopy(existingSitesAll, 0, existingSites, 0, existingSitesAllLen);
        }
        if (existingSitesDisabledLen > 0) {
            System.arraycopy(existingSitesDisabled, 0, existingSites, existingSitesAllLen, existingSitesDisabledLen);
        }
        // If the site.xml does not exist, the load will throw a org.eclipse.equinox.p2.core.ProvisionException
        try {
            IMetadataRepository repo = mrf.load(url2, IRepositoryManager.REPOSITORIES_ALL, monitor);
            // $NON-NLS-1$
            IQuery<IInstallableUnit> query = QueryUtil.createMatchQuery("id ~=/*org.eclipse.wst.server.core.serverAdapter/");
            list = getInstallableUnits(repo, query, url2, monitor);
        } catch (ProvisionException pe) {
            // $NON-NLS-1$
            Trace.trace(Trace.WARNING, "Error getting update site information", pe);
        }
        // specifying any server adapters there or no site.xml exists)
        if (list.isEmpty()) {
            manager.addRepository(url2);
            // Need to query for all IUs
            IQuery<IInstallableUnit> query = QueryUtil.createIUAnyQuery();
            IMetadataRepository repo = manager.loadRepository(url2, monitor);
            List<IServerExtension> list2 = getInstallableUnits(repo, query, url2, monitor);
            int size = list2.size();
            for (int i = 0; i < size; i++) {
                Extension e = (Extension) list2.get(i);
                IInstallableUnit[] iuArr = e.getIUs();
                if (iuArr != null && iuArr.length > 0) {
                    if (iuArr[0] != null) {
                        if (iuArr[0].getProperty(SERVER_ADAPTER_ID) != null) {
                            list.add(e);
                        }
                    }
                }
            }
        }
        // a provider property with org.eclipse.wst.server.core.serverAdapter
        if (list.isEmpty()) {
            manager = (IMetadataRepositoryManager) agent.getService(IMetadataRepositoryManager.SERVICE_NAME);
            manager.addRepository(url2);
            // $NON-NLS-1$
            IQuery<IInstallableUnit> query = QueryUtil.createMatchQuery("id ~=/*org.eclipse.wst.server.core.serverAdapter/");
            IMetadataRepository repo = manager.loadRepository(url2, monitor);
            list = getInstallableUnits(repo, query, url2, monitor);
        }
        return list;
    } catch (ProvisionException e) {
        // $NON-NLS-1$
        Trace.trace(Trace.WARNING, "Error getting update info", e);
        throw e;
    } catch (Exception e) {
        // $NON-NLS-1$
        Trace.trace(Trace.WARNING, "Error getting update info", e);
        return new ArrayList<IServerExtension>(0);
    } finally {
        if (url2 != null && url2.getPath().length() != 0 && manager != null) {
            if (existingSites != null && existingSites.length > 0) {
                boolean urlExists = false;
                for (URI uri : existingSites) {
                    if (uri.getPath().equals(url2.getPath())) {
                        urlExists = true;
                        break;
                    }
                }
                // If site did not exist before, remove it as it was added with load
                if (!urlExists) {
                    manager.removeRepository(url2);
                }
            }
        }
    }
}