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Some prelim work on builder api.
[librarian.git] / src / librarian / dcparser.py
diff --git a/src/librarian/dcparser.py b/src/librarian/dcparser.py
index 2edba6c..ce03be2 100644 (file)
--- a/src/librarian/dcparser.py
+++ b/src/librarian/dcparser.py
@@ -1,11 +1,11 @@
 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+# Copyright © Fundacja Wolne Lektury. See NOTICE for more information.
 #
 from xml.parsers.expat import ExpatError
 from datetime import date
 #
 from xml.parsers.expat import ExpatError
 from datetime import date
+import io
 import time
 import re
 import time
 import re
-import six
 from librarian.util import roman_to_int
 
 from librarian import (ValidationError, NoDublinCore, ParseError, DCNS, RDFNS,
 from librarian.util import roman_to_int
 
 from librarian import (ValidationError, NoDublinCore, ParseError, DCNS, RDFNS,
@@ -20,7 +20,7 @@ from librarian.meta.types.wluri import WLURI
 from librarian.meta.types import text
 
 
 from librarian.meta.types import text
 
 
-class Field(object):
+class Field:
     def __init__(self, uri, attr_name, value_type=text.TextValue,
                  multiple=False, salias=None, **kwargs):
         self.uri = uri
     def __init__(self, uri, attr_name, value_type=text.TextValue,
                  multiple=False, salias=None, **kwargs):
         self.uri = uri
@@ -87,23 +87,7 @@ class Field(object):
         return False
 
 
         return False
 
 
-class DCInfo(type):
-    def __new__(mcs, classname, bases, class_dict):
-        fields = list(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.insert(0, field)
-
-        class_dict['FIELDS'] = tuple(fields)
-        return super(DCInfo, mcs).__new__(mcs, classname, bases, class_dict)
-
-
-class WorkInfo(six.with_metaclass(DCInfo, object)):
+class BookInfo:
     FIELDS = (
         Field(DCNS('creator'), 'authors', Person, salias='author',
               multiple=True),
     FIELDS = (
         Field(DCNS('creator'), 'authors', Person, salias='author',
               multiple=True),
@@ -140,6 +124,48 @@ class WorkInfo(six.with_metaclass(DCInfo, object)):
         Field(WLNS('contentWarning'), 'content_warnings', multiple=True,
               required=False),
         Field(WLNS('developmentStage'), 'stage', required=False),
         Field(WLNS('contentWarning'), 'content_warnings', multiple=True,
               required=False),
         Field(WLNS('developmentStage'), 'stage', required=False),
+
+        Field(DCNS('audience'), 'audiences', text.Audience, salias='audience', multiple=True,
+              required=False),
+
+        Field(DCNS('subject.period'), 'epochs', text.Epoch, salias='epoch', multiple=True,
+              required=False),
+        Field(DCNS('subject.type'), 'kinds', text.Kind, salias='kind', multiple=True,
+              required=False),
+        Field(DCNS('subject.genre'), 'genres', text.Genre, salias='genre', multiple=True,
+              required=False),
+        Field('category.legimi', 'legimi', text.LegimiCategory, required=False),
+        Field('category.thema.main', 'thema_main', text.MainThemaCategory, required=False),
+        Field('category.thema', 'thema', text.ThemaCategory, required=False, multiple=True),
+        Field(DCNS('subject.location'), 'location', required=False),
+
+        Field(DCNS('contributor.translator'), 'translators',
+              Person,  salias='translator', multiple=True, required=False),
+        Field(DCNS('relation.hasPart'), 'parts', WLURI,
+              multiple=True, required=False),
+        Field(DCNS('relation.isVariantOf'), 'variant_of', WLURI,
+              required=False),
+
+        Field(DCNS('relation.coverImage.url'), 'cover_url', required=False),
+        Field(DCNS('relation.coverImage.attribution'), 'cover_by',
+              required=False),
+        Field(DCNS('relation.coverImage.source'), 'cover_source',
+              required=False),
+        # WLCover-specific.
+        Field(WLNS('coverBarColor'), 'cover_bar_color', required=False),
+        Field(WLNS('coverBoxPosition'), 'cover_box_position', required=False),
+        Field(WLNS('coverClass'), 'cover_class', default=['default']),
+        Field(WLNS('coverLogoUrl'), 'cover_logo_urls', multiple=True,
+              required=False),
+        Field(WLNS('endnotes'), 'endnotes', BoolValue,
+              required=False),
+
+        Field('pdf-id',  'isbn_pdf',  required=False),
+        Field('epub-id', 'isbn_epub', required=False),
+        Field('mobi-id', 'isbn_mobi', required=False),
+        Field('txt-id',  'isbn_txt',  required=False),
+        Field('html-id', 'isbn_html', required=False),
+
     )
 
     @classmethod
     )
 
     @classmethod
@@ -150,7 +176,7 @@ class WorkInfo(six.with_metaclass(DCInfo, object)):
     
     @classmethod
     def from_bytes(cls, xml, *args, **kwargs):
     
     @classmethod
     def from_bytes(cls, xml, *args, **kwargs):
-        return cls.from_file(six.BytesIO(xml), *args, **kwargs)
+        return cls.from_file(io.BytesIO(xml), *args, **kwargs)
 
     @classmethod
     def from_file(cls, xmlfile, *args, **kwargs):
 
     @classmethod
     def from_file(cls, xmlfile, *args, **kwargs):
@@ -301,11 +327,11 @@ class WorkInfo(six.with_metaclass(DCInfo, object)):
                     for x in v:
                         e = etree.Element(field.uri)
                         if x is not None:
                     for x in v:
                         e = etree.Element(field.uri)
                         if x is not None:
-                            e.text = six.text_type(x)
+                            e.text = str(x)
                         description.append(e)
                 else:
                     e = etree.Element(field.uri)
                         description.append(e)
                 else:
                     e = etree.Element(field.uri)
-                    e.text = six.text_type(v)
+                    e.text = str(v)
                     description.append(e)
 
         return root
                     description.append(e)
 
         return root
@@ -320,9 +346,9 @@ class WorkInfo(six.with_metaclass(DCInfo, object)):
                 if field.multiple:
                     if len(v) == 0:
                         continue
                 if field.multiple:
                     if len(v) == 0:
                         continue
-                    v = [six.text_type(x) for x in v if x is not None]
+                    v = [str(x) for x in v if x is not None]
                 else:
                 else:
-                    v = six.text_type(v)
+                    v = str(v)
 
                 dc[field.name] = {'uri': field.uri, 'value': v}
         rdf['fields'] = dc
 
                 dc[field.name] = {'uri': field.uri, 'value': v}
         rdf['fields'] = dc
@@ -337,62 +363,18 @@ class WorkInfo(six.with_metaclass(DCInfo, object)):
                 if field.multiple:
                     if len(v) == 0:
                         continue
                 if field.multiple:
                     if len(v) == 0:
                         continue
-                    v = [six.text_type(x) for x in v if x is not None]
+                    v = [str(x) for x in v if x is not None]
                 else:
                 else:
-                    v = six.text_type(v)
+                    v = str(v)
                 result[field.name] = v
 
             if field.salias:
                 v = getattr(self, field.salias)
                 if v is not None:
                 result[field.name] = v
 
             if field.salias:
                 v = getattr(self, field.salias)
                 if v is not None:
-                    result[field.salias] = six.text_type(v)
+                    result[field.salias] = str(v)
 
         return result
 
 
 
         return result
 
 
-class BookInfo(WorkInfo):
-    FIELDS = (
-        Field(DCNS('audience'), 'audiences', text.Audience, salias='audience', multiple=True,
-              required=False),
-
-        Field(DCNS('subject.period'), 'epochs', text.Epoch, salias='epoch', multiple=True,
-              required=False),
-        Field(DCNS('subject.type'), 'kinds', text.Kind, salias='kind', multiple=True,
-              required=False),
-        Field(DCNS('subject.genre'), 'genres', text.Genre, salias='genre', multiple=True,
-              required=False),
-        Field(WLNS('category.legimi'), 'legimi', text.LegimiCategory, required=False),
-        Field(WLNS('category.thema'), 'thema', text.ThemaCategory, required=False, multiple=True),
-        Field(DCNS('subject.location'), 'location', required=False),
-
-        Field(DCNS('contributor.translator'), 'translators',
-              Person,  salias='translator', multiple=True, required=False),
-        Field(DCNS('relation.hasPart'), 'parts', WLURI,
-              multiple=True, required=False),
-        Field(DCNS('relation.isVariantOf'), 'variant_of', WLURI,
-              required=False),
-
-        Field(DCNS('relation.coverImage.url'), 'cover_url', required=False),
-        Field(DCNS('relation.coverImage.attribution'), 'cover_by',
-              required=False),
-        Field(DCNS('relation.coverImage.source'), 'cover_source',
-              required=False),
-        # WLCover-specific.
-        Field(WLNS('coverBarColor'), 'cover_bar_color', required=False),
-        Field(WLNS('coverBoxPosition'), 'cover_box_position', required=False),
-        Field(WLNS('coverClass'), 'cover_class', default=['default']),
-        Field(WLNS('coverLogoUrl'), 'cover_logo_urls', multiple=True,
-              required=False),
-        Field(WLNS('endnotes'), 'endnotes', BoolValue,
-              required=False),
-
-        Field('pdf-id',  'isbn_pdf',  required=False),
-        Field('epub-id', 'isbn_epub', required=False),
-        Field('mobi-id', 'isbn_mobi', required=False),
-        Field('txt-id',  'isbn_txt',  required=False),
-        Field('html-id', 'isbn_html', required=False),
-    )
-
-
 def parse(file_name, cls=BookInfo):
     return cls.from_file(file_name)
 def parse(file_name, cls=BookInfo):
     return cls.from_file(file_name)