def __init__(self, content_dict, **kwargs):
super(AudiobookManifest, self).__init__(**kwargs)
self.raw = content_dict
# Metadata values that map directly onto the core spec.
self.import_metadata('title')
self.import_metadata('publisher')
self.import_metadata('description')
self.import_metadata('isbn', 'identifier')
self.import_metadata('authors', 'author')
self.import_metadata('narrators', 'narrator')
self.import_metadata('minutes', 'duration', lambda x: x*60)
# Metadata values that have no equivalent in the core spec,
# but are potentially useful.
self.import_metadata('size', 'schema:contentSize')
self.import_metadata('titleid', 'rbdigital:id', str)
self.import_metadata('hasDrm', 'rbdigital:hasDrm')
self.import_metadata('encryptionKey', 'rbdigital:encryptionKey')
# Spine items.
for file_data in self.raw.get('files', []):
self.import_spine(file_data)
# Links.
download_url = self.raw.get('downloadUrl')
if download_url:
self.add_link(
download_url, 'alternate',
type=Representation.guess_media_type(download_url)
)
cover = self.best_cover(self.raw.get('images', []))
if cover:
self.add_link(
cover, "cover", type=Representation.guess_media_type(cover)
)
def import_spine(self, file_data):
"""Import an RBdigital spine item as a Web Publication Manifest
spine item.
"""
href = file_data.get('downloadUrl')
duration = file_data.get('minutes') * 60
title = file_data.get('display')
id = file_data.get('id')
size = file_data.get('size')
filename = file_data.get('filename')
type = Representation.guess_media_type(filename)
extra = {}
for k, v, transform in (
('id', 'rbdigital:id', str),
('size', 'schema:contentSize', lambda x: x),
('minutes', 'duration', lambda x: x * 60),
):
if k in file_data:
extra[v] = transform(file_data[k])
self.add_spine(href, type, title, **extra)
