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"""A simple transformation that truncates the text of input documents to a
given character length."""
from __future__ import annotations
from typing import TYPE_CHECKING
from annif.exception import ConfigurationException
from . import transform
if TYPE_CHECKING:
from annif.project import AnnifProject
class InputLimiter(transform.BaseTransform):
name = "limit"
def __init__(self, project: AnnifProject | None, input_limit: str) -> None:
super().__init__(project)
self.input_limit = int(input_limit)
self._validate_value(self.input_limit)
def transform_text(self, text: str) -> str:
return text[: self.input_limit]
def _validate_value(self, input_limit: int) -> None:
if input_limit < 0:
raise ConfigurationException(
"input_limit in limit_input transform cannot be negative",
project_id=self.project.project_id,
)
NatLibFi /
Annif
