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

Example 1 with MapRDBFormatMatcher

use of org.apache.drill.exec.store.mapr.db.MapRDBFormatMatcher 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;
}