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b339b93 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | """Exception hierarchy for legislator crosswalk extractor."""
from dataclasses import dataclass
from pathlib import Path
@dataclass
class CrosswalkError(Exception):
"""Base exception for crosswalk extraction errors."""
message: str
def __str__(self) -> str:
return self.message
@dataclass
class SourceReadError(CrosswalkError):
"""Raised when source data cannot be read."""
source_url: str
def __str__(self) -> str:
return f"Failed to read source: {self.source_url}\n{self.message}"
@dataclass
class InvalidSourceURLError(CrosswalkError):
"""Raised when source URL is not from an allowed domain."""
source_url: str
allowed_domains: list[str]
def __str__(self) -> str:
domains = ", ".join(self.allowed_domains)
return f"Invalid source URL: {self.source_url}\nAllowed domains: {domains}"
@dataclass
class OutputWriteError(CrosswalkError):
"""Raised when output cannot be written."""
output_path: Path
def __str__(self) -> str:
return f"Failed to write output: {self.output_path}\n{self.message}"
@dataclass
class ValidationError(CrosswalkError):
"""Raised when validation fails."""
expected_count: int
actual_count: int
def __str__(self) -> str:
return (
f"Validation failed: {self.message}\n"
f"Expected: {self.expected_count:,}\n"
f"Actual: {self.actual_count:,}"
)
@dataclass
class DuplicateKeyError(CrosswalkError):
"""Raised when duplicate key pairs are found."""
duplicate_count: int
sample_duplicates: list[tuple[str, str]] | None = None
def __str__(self) -> str:
msg = f"Found {self.duplicate_count:,} duplicate (icpsr, bonica_rid) pairs"
if self.sample_duplicates:
samples = ", ".join(f"({i}, {b})" for i, b in self.sample_duplicates[:5])
msg += f"\nExamples: {samples}"
return msg
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