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from typing import Iterable, Optional
import csv
from chocula.util import clean_str
from chocula.common import DirectoryLoader
from chocula.database import DirectoryInfo, HomepageUrl
class RoadLoader(DirectoryLoader):
"""
CSV Columns:
- ISSN
- ISSN-L
- Short Title
- Title
- Publisher
- URL1
- URL2
- Region
- Lang1
- Lang2
"""
source_slug = "road"
def open_file(self) -> Iterable:
return csv.DictReader(
open(self.config.road.filepath),
delimiter="\t",
fieldnames=(
"ISSN",
"ISSN-L",
"Short Title",
"Title",
"Publisher",
"URL1",
"URL2",
"Region",
"Lang1",
"Lang2",
),
)
def parse_record(self, row) -> Optional[DirectoryInfo]:
info = DirectoryInfo(
directory_slug=self.source_slug,
raw_issn=row["ISSN-L"],
name=clean_str(row["Short Title"]),
publisher=clean_str(row["Publisher"]),
langs=[l for l in (row["Lang1"], row["Lang2"]) if l],
)
# TODO: region mapping: "Europe and North America"
# TODO: lang mapping: already alpha-3
# homepages
for url in [u for u in (row["URL1"], row["URL2"]) if u]:
homepage = HomepageUrl.from_url(url)
if homepage:
info.homepage_urls.append(homepage)
return info
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