from datetime import date
import time
-from librarian import ValidationError, NoDublinCore, ParseError, DCNS, RDFNS
+from librarian import (ValidationError, NoDublinCore, ParseError, DCNS, RDFNS,
+ WLURI)
import lxml.etree as etree # ElementTree API using libxml2
from lxml.etree import XMLSyntaxError
def __eq__(self, right):
return self.last_name == right.last_name and self.first_names == right.first_names
+ def __cmp__(self, other):
+ return cmp((self.last_name, self.first_names), (other.last_name, other.first_names))
+
+ def __hash__(self):
+ return hash((self.last_name, self.first_names))
def __unicode__(self):
if len(self.first_names) > 0:
return self.validate_value(f)
+ def __eq__(self, other):
+ if isinstance(other, Field) and other.name == self.name:
+ return True
+ return False
+
+
+class DCInfo(type):
+ def __new__(meta, classname, bases, class_dict):
+ fields = class_dict['FIELDS']
+
+ for base in bases[::-1]:
+ if hasattr(base, 'FIELDS'):
+ for field in base.FIELDS[::-1]:
+ try:
+ fields.index(field)
+ except ValueError:
+ fields = (field,) + fields
+
+ class_dict['FIELDS'] = fields
+ return super(DCInfo, meta).__new__(meta, classname, bases, class_dict)
+class WorkInfo(object):
+ __metaclass__ = DCInfo
-class BookInfo(object):
FIELDS = (
Field( DCNS('creator'), 'author', as_person),
Field( DCNS('title'), 'title'),
+ Field( DCNS('type'), 'type', required=False, multiple=True),
+
Field( DCNS('subject.period'), 'epochs', salias='epoch', multiple=True),
Field( DCNS('subject.type'), 'kinds', salias='kind', multiple=True),
Field( DCNS('subject.genre'), 'genres', salias='genre', multiple=True),
+
Field( DCNS('date'), 'created_at', as_date),
Field( DCNS('date.pd'), 'released_to_public_domain_at', as_date, required=False),
- Field( DCNS('contributor.editor'), 'editors', \
- as_person, salias='editor', multiple=True, default=[]),
- Field( DCNS('contributor.translator'), 'translators', \
- as_person, salias='translator', multiple=True, default=[]),
- Field( DCNS('contributor.technical_editor'), 'technical_editors',
- as_person, salias='technical_editor', multiple=True, default=[]),
Field( DCNS('publisher'), 'publisher'),
+
Field( DCNS('source'), 'source_name', required=False),
Field( DCNS('source.URL'), 'source_url', required=False),
- Field( DCNS('identifier.url'), 'url'),
- Field( DCNS('relation.hasPart'), 'parts', multiple=True, required=False),
- Field( DCNS('rights.license'), 'license', required=False),
- Field( DCNS('rights'), 'license_description'),
- Field( DCNS('description'), 'description', required=False),
- )
-
- @property
- def slug(self):
- return self.url.rsplit('/', 1)[1]
+ Field( DCNS('identifier.url'), 'url', WLURI),
+ )
@classmethod
def from_string(cls, xml):
def from_element(cls, rdf_tag):
# the tree is already parsed, so we don't need to worry about Expat errors
field_dict = {}
- desc = rdf_tag.find(".//" + RDFNS('Description') )
+ desc = rdf_tag.find(".//" + RDFNS('Description'))
if desc is None:
raise NoDublinCore("No DublinCore section found.")
fv.append(e.text)
field_dict[e.tag] = fv
- return cls( desc.attrib, field_dict )
+ return cls(desc.attrib, field_dict)
def __init__(self, rdf_attrs, dc_fields):
"""rdf_attrs should be a dictionary-like object with any attributes of the RDF:Description.
self.fmap[field.name] = field
if field.salias: self.fmap[field.salias] = field
+ self.validate()
+
+ def validate(self):
+ self.url.validate_language(self.language)
+
def __getattribute__(self, name):
try:
field = object.__getattribute__(self, 'fmap')[name]
if len(v) == 0: continue
for x in v:
e = etree.Element(field.uri)
- e.text = unicode(x)
+ if x is not None:
+ e.text = unicode(x)
description.append(e)
else:
e = etree.Element(field.uri)
return root
-
def serialize(self):
rdf = {}
rdf['about'] = { 'uri': RDFNS('about'), 'value': self.about }
if v is not None:
if field.multiple:
if len(v) == 0: continue
- v = [ unicode(x) for x in v if v is not None ]
+ v = [ unicode(x) for x in v if x is not None ]
else:
v = unicode(v)
if v is not None:
if field.multiple:
if len(v) == 0: continue
- v = [ unicode(x) for x in v if v is not None ]
+ v = [ unicode(x) for x in v if x is not None ]
else:
v = unicode(v)
result[field.name] = v
return result
-def parse(file_name):
- return BookInfo.from_file(file_name)
+
+class BookInfo(WorkInfo):
+ FIELDS = (
+ Field( DCNS('audience'), 'audiences', salias='audience', multiple=True,
+ required=False),
+ Field( DCNS('contributor.editor'), 'editors', \
+ as_person, salias='editor', multiple=True, default=[]),
+ Field( DCNS('contributor.translator'), 'translators', \
+ as_person, salias='translator', multiple=True, default=[]),
+ Field( DCNS('contributor.technical_editor'), 'technical_editors',
+ as_person, salias='technical_editor', multiple=True, default=[]),
+ Field( DCNS('relation.hasPart'), 'parts', WLURI, multiple=True, required=False),
+ Field( DCNS('rights.license'), 'license', required=False),
+ Field( DCNS('rights'), 'license_description'),
+ Field( DCNS('language'), 'language'),
+ Field( DCNS('description'), 'description', required=False),
+ Field( DCNS('relation.cover_image.url'), 'cover_url', required=False),
+ Field( DCNS('relation.cover_image.attribution'), 'cover_by', required=False),
+ Field( DCNS('relation.cover_image.source'), 'cover_source', required=False),
+ )
+
+
+def parse(file_name, cls=BookInfo):
+ return cls.from_file(file_name)
fnp / librarian.git / blobdiff