# This is an automatically generated file.
# DO NOT EDIT or your changes may be overwritten
from __future__ import annotations
import base64
from xdrlib3 import Packer, Unpacker
from .precondition_type import PreconditionType
from .preconditions_v2 import PreconditionsV2
from .time_bounds import TimeBounds
__all__ = ["Preconditions"]
[docs]
class Preconditions:
"""
XDR Source Code::
union Preconditions switch (PreconditionType type)
{
case PRECOND_NONE:
void;
case PRECOND_TIME:
TimeBounds timeBounds;
case PRECOND_V2:
PreconditionsV2 v2;
};
"""
def __init__(
self,
type: PreconditionType,
time_bounds: TimeBounds = None,
v2: PreconditionsV2 = None,
) -> None:
self.type = type
self.time_bounds = time_bounds
self.v2 = v2
def pack(self, packer: Packer) -> None:
self.type.pack(packer)
if self.type == PreconditionType.PRECOND_NONE:
return
if self.type == PreconditionType.PRECOND_TIME:
if self.time_bounds is None:
raise ValueError("time_bounds should not be None.")
self.time_bounds.pack(packer)
return
if self.type == PreconditionType.PRECOND_V2:
if self.v2 is None:
raise ValueError("v2 should not be None.")
self.v2.pack(packer)
return
@classmethod
def unpack(cls, unpacker: Unpacker) -> Preconditions:
type = PreconditionType.unpack(unpacker)
if type == PreconditionType.PRECOND_NONE:
return cls(type=type)
if type == PreconditionType.PRECOND_TIME:
time_bounds = TimeBounds.unpack(unpacker)
return cls(type=type, time_bounds=time_bounds)
if type == PreconditionType.PRECOND_V2:
v2 = PreconditionsV2.unpack(unpacker)
return cls(type=type, v2=v2)
return cls(type=type)
def to_xdr_bytes(self) -> bytes:
packer = Packer()
self.pack(packer)
return packer.get_buffer()
@classmethod
def from_xdr_bytes(cls, xdr: bytes) -> Preconditions:
unpacker = Unpacker(xdr)
return cls.unpack(unpacker)
def to_xdr(self) -> str:
xdr_bytes = self.to_xdr_bytes()
return base64.b64encode(xdr_bytes).decode()
@classmethod
def from_xdr(cls, xdr: str) -> Preconditions:
xdr_bytes = base64.b64decode(xdr.encode())
return cls.from_xdr_bytes(xdr_bytes)
def __hash__(self):
return hash(
(
self.type,
self.time_bounds,
self.v2,
)
)
def __eq__(self, other: object):
if not isinstance(other, self.__class__):
return NotImplemented
return (
self.type == other.type
and self.time_bounds == other.time_bounds
and self.v2 == other.v2
)
def __str__(self):
out = []
out.append(f"type={self.type}")
out.append(
f"time_bounds={self.time_bounds}"
) if self.time_bounds is not None else None
out.append(f"v2={self.v2}") if self.v2 is not None else None
return f"<Preconditions [{', '.join(out)}]>"