gets the parent of the file at a path . concode_field_sep int TEMPORARY_SUFFIX_LENGTH concode_elem_sep String TEMPORARY_SUFFIX_FORMAT concode_field_sep String subtractPaths concode_elem_sep String temporaryFileName concode_elem_sep String[] getPathComponents concode_elem_sep String concatPath concode_elem_sep String getPermanentFileName concode_elem_sep boolean isRoot concode_elem_sep String uniqPath concode_elem_sep boolean isTemporaryFileName concode_elem_sep boolean hasPrefix concode_elem_sep String cleanPath concode_elem_sep void validatePath concode_elem_sep String normalizePath