Examples with MapRDBGroupScan org.apache.drill.exec.store.mapr.db.MapRDBGroupScan used on opensource projects

Example 1 with MapRDBGroupScan

use of org.apache.drill.exec.store.mapr.db.MapRDBGroupScan in project drill by apache.

the class MapRDBIndexDiscover method getNativeDrillTable.

@Override
public DrillTable getNativeDrillTable(IndexDescriptor idxDescriptor) {
    try {
        final AbstractDbGroupScan origScan = getOriginalScan();
        if (!(origScan instanceof MapRDBGroupScan)) {
            return null;
        }
        MapRDBFormatPlugin maprFormatPlugin = ((MapRDBGroupScan) origScan).getFormatPlugin();
        FileSystemPlugin fsPlugin = (FileSystemPlugin) (origScan.getStoragePlugin());
        DrillFileSystem fs = ImpersonationUtil.createFileSystem(origScan.getUserName(), fsPlugin.getFsConf());
        MapRDBFormatMatcher matcher = (MapRDBFormatMatcher) (maprFormatPlugin.getMatcher());
        FileSelection fsSelection = deriveFSSelection(fs, idxDescriptor);
        return matcher.isReadableIndex(fs, fsSelection, fsPlugin, fsPlugin.getName(), origScan.getUserName(), idxDescriptor);
    } catch (Exception e) {
        logger.error("Failed to get native DrillTable.", e);
    }
    return null;
}

Example 2 with MapRDBGroupScan

use of org.apache.drill.exec.store.mapr.db.MapRDBGroupScan in project drill by apache.

the class MapRDBIndexDiscover method admin.

@SuppressWarnings("deprecation")
private Admin admin() {
    assert getOriginalScan() instanceof MapRDBGroupScan;
    final MapRDBGroupScan dbGroupScan = (MapRDBGroupScan) getOriginalScan();
    final UserGroupInformation currentUser = ImpersonationUtil.createProxyUgi(dbGroupScan.getUserName());
    final Configuration conf = dbGroupScan.getFormatPlugin().getFsConf();
    final Admin admin;
    try {
        admin = currentUser.doAs((PrivilegedExceptionAction<Admin>) () -> MapRDB.getAdmin(conf));
    } catch (Exception e) {
        throw new DrillRuntimeException("Failed to get Admin instance for user: " + currentUser.getUserName(), e);
    }
    return admin;
}