@Override
  public DrillTable create(String key) {
    try {

      FileSelection fileSelection = FileSelection.create(fs, config.getLocation(), key);
      if (fileSelection == null) return null;

      if (fileSelection.containsDirectories(fs)) {
        for (FormatMatcher m : dirMatchers) {
          try {
            Object selection = m.isReadable(fileSelection);
            if (selection != null)
              return new DynamicDrillTable(plugin, storageEngineName, selection);
          } catch (IOException e) {
            logger.debug("File read failed.", e);
          }
        }
        fileSelection = fileSelection.minusDirectories(fs);
      }

      for (FormatMatcher m : fileMatchers) {
        Object selection = m.isReadable(fileSelection);
        if (selection != null) return new DynamicDrillTable(plugin, storageEngineName, selection);
      }
      return null;

    } catch (IOException e) {
      logger.debug(
          "Failed to create DrillTable with root {} and name {}", config.getLocation(), key, e);
    }

    return null;
  }
Exemplo n.º 2
0
 @Override
 public FormatSelection isReadable(DrillFileSystem fs, FileSelection selection)
     throws IOException {
   // TODO: we only check the first file for directory reading.  This is because
   if (selection.containsDirectories(fs)) {
     if (isDirReadable(fs, selection.getFirstPath(fs))) {
       return new FormatSelection(plugin.getConfig(), expandSelection(fs, selection));
     }
   }
   return super.isReadable(fs, selection);
 }