# This is an automatically generated file.
# DO NOT EDIT or your changes may be overwritten
from __future__ import annotations
import base64
import json
from xdrlib3 import Packer, Unpacker
from .base import DEFAULT_XDR_MAX_DEPTH
from .hash import Hash
from .scp_ballot import SCPBallot
from .uint32 import Uint32
__all__ = ["SCPStatementExternalize"]
[docs]
class SCPStatementExternalize:
"""
XDR Source Code::
struct
{
SCPBallot commit; // c
uint32 nH; // h.n
Hash commitQuorumSetHash; // D used before EXTERNALIZE
}
"""
def __init__(
self,
commit: SCPBallot,
n_h: Uint32,
commit_quorum_set_hash: Hash,
) -> None:
self.commit = commit
self.n_h = n_h
self.commit_quorum_set_hash = commit_quorum_set_hash
def pack(self, packer: Packer) -> None:
self.commit.pack(packer)
self.n_h.pack(packer)
self.commit_quorum_set_hash.pack(packer)
@classmethod
def unpack(
cls, unpacker: Unpacker, depth_limit: int = DEFAULT_XDR_MAX_DEPTH
) -> SCPStatementExternalize:
if depth_limit <= 0:
raise ValueError("Maximum decoding depth reached")
commit = SCPBallot.unpack(unpacker, depth_limit - 1)
n_h = Uint32.unpack(unpacker, depth_limit - 1)
commit_quorum_set_hash = Hash.unpack(unpacker, depth_limit - 1)
return cls(
commit=commit,
n_h=n_h,
commit_quorum_set_hash=commit_quorum_set_hash,
)
def to_xdr_bytes(self) -> bytes:
packer = Packer()
self.pack(packer)
return packer.get_buffer()
@classmethod
def from_xdr_bytes(cls, xdr: bytes) -> SCPStatementExternalize:
unpacker = Unpacker(xdr)
result = cls.unpack(unpacker)
remaining = len(xdr) - unpacker.get_position()
if remaining != 0:
raise ValueError(f"Unexpected trailing {remaining} bytes in XDR data")
return result
def to_xdr(self) -> str:
xdr_bytes = self.to_xdr_bytes()
return base64.b64encode(xdr_bytes).decode()
@classmethod
def from_xdr(cls, xdr: str) -> SCPStatementExternalize:
xdr_bytes = base64.b64decode(xdr.encode())
return cls.from_xdr_bytes(xdr_bytes)
def to_json(self) -> str:
return json.dumps(self.to_json_dict())
@classmethod
def from_json(cls, json_str: str) -> SCPStatementExternalize:
return cls.from_json_dict(json.loads(json_str))
def to_json_dict(self) -> dict:
return {
"commit": self.commit.to_json_dict(),
"n_h": self.n_h.to_json_dict(),
"commit_quorum_set_hash": self.commit_quorum_set_hash.to_json_dict(),
}
@classmethod
def from_json_dict(cls, json_dict: dict) -> SCPStatementExternalize:
commit = SCPBallot.from_json_dict(json_dict["commit"])
n_h = Uint32.from_json_dict(json_dict["n_h"])
commit_quorum_set_hash = Hash.from_json_dict(
json_dict["commit_quorum_set_hash"]
)
return cls(
commit=commit,
n_h=n_h,
commit_quorum_set_hash=commit_quorum_set_hash,
)
def __hash__(self):
return hash(
(
self.commit,
self.n_h,
self.commit_quorum_set_hash,
)
)
def __eq__(self, other: object):
if not isinstance(other, self.__class__):
return NotImplemented
return (
self.commit == other.commit
and self.n_h == other.n_h
and self.commit_quorum_set_hash == other.commit_quorum_set_hash
)
def __repr__(self):
out = [
f"commit={self.commit}",
f"n_h={self.n_h}",
f"commit_quorum_set_hash={self.commit_quorum_set_hash}",
]
return f"<SCPStatementExternalize [{', '.join(out)}]>"