code: public void setDirectoryPath(String pidsfilepath) {
          File pidsfile = new File(pidsfilepath);
          directoryPath = pidsfile.getParent();
      }
docs: extract parent directory from filepath of pidsfile, store it as directory
  where processing progress report will be written. see also
  BatchBuildGUI.java, BatchBuildIngestGUI.java, and BatchIngestGUI.java,
  each of which calls setDirectoryPath()