dify/api/core/app/segments/segments.py
KVOJJJin 935e72d449
Feat: conversation variable & variable assigner node (#7222)
Signed-off-by: -LAN- <laipz8200@outlook.com>
Co-authored-by: Joel <iamjoel007@gmail.com>
Co-authored-by: -LAN- <laipz8200@outlook.com>
2024-08-13 14:44:10 +08:00

137 lines
3.1 KiB
Python

import json
import sys
from collections.abc import Mapping, Sequence
from typing import Any
from pydantic import BaseModel, ConfigDict, field_validator
from core.file.file_obj import FileVar
from .types import SegmentType
class Segment(BaseModel):
model_config = ConfigDict(frozen=True)
value_type: SegmentType
value: Any
@field_validator('value_type')
def validate_value_type(cls, value):
"""
This validator checks if the provided value is equal to the default value of the 'value_type' field.
If the value is different, a ValueError is raised.
"""
if value != cls.model_fields['value_type'].default:
raise ValueError("Cannot modify 'value_type'")
return value
@property
def text(self) -> str:
return str(self.value)
@property
def log(self) -> str:
return str(self.value)
@property
def markdown(self) -> str:
return str(self.value)
@property
def size(self) -> int:
return sys.getsizeof(self.value)
def to_object(self) -> Any:
return self.value
class NoneSegment(Segment):
value_type: SegmentType = SegmentType.NONE
value: None = None
@property
def text(self) -> str:
return 'null'
@property
def log(self) -> str:
return 'null'
@property
def markdown(self) -> str:
return 'null'
class StringSegment(Segment):
value_type: SegmentType = SegmentType.STRING
value: str
class FloatSegment(Segment):
value_type: SegmentType = SegmentType.NUMBER
value: float
class IntegerSegment(Segment):
value_type: SegmentType = SegmentType.NUMBER
value: int
class FileSegment(Segment):
value_type: SegmentType = SegmentType.FILE
# TODO: embed FileVar in this model.
value: FileVar
@property
def markdown(self) -> str:
return self.value.to_markdown()
class ObjectSegment(Segment):
value_type: SegmentType = SegmentType.OBJECT
value: Mapping[str, Any]
@property
def text(self) -> str:
return json.dumps(self.model_dump()['value'], ensure_ascii=False)
@property
def log(self) -> str:
return json.dumps(self.model_dump()['value'], ensure_ascii=False, indent=2)
@property
def markdown(self) -> str:
return json.dumps(self.model_dump()['value'], ensure_ascii=False, indent=2)
class ArraySegment(Segment):
@property
def markdown(self) -> str:
return '\n'.join(['- ' + item.markdown for item in self.value])
class ArrayAnySegment(ArraySegment):
value_type: SegmentType = SegmentType.ARRAY_ANY
value: Sequence[Any]
class ArrayStringSegment(ArraySegment):
value_type: SegmentType = SegmentType.ARRAY_STRING
value: Sequence[str]
class ArrayNumberSegment(ArraySegment):
value_type: SegmentType = SegmentType.ARRAY_NUMBER
value: Sequence[float | int]
class ArrayObjectSegment(ArraySegment):
value_type: SegmentType = SegmentType.ARRAY_OBJECT
value: Sequence[Mapping[str, Any]]
class ArrayFileSegment(ArraySegment):
value_type: SegmentType = SegmentType.ARRAY_FILE
value: Sequence[FileSegment]