def install_episode():
DS_COMP_MODEL = u"""
<dsCompositeModel xmlns="info:fedora/fedora-system:def/dsCompositeModel#">
<comment xmlns="info:fedora/fedora-system:def/comment#">
This DS-COMPOSITE-MODEL datastream is included as a starting point to
assist in the creation of a content model. The DS-COMPOSITE-MODEL
should define the datastreams that are required for any objects
conforming to this content model.
For more information about content models, see:
http://fedora-commons.org/confluence/x/dgBI.
For examples of completed content model objects, see the demonstration
objects included with your Fedora distribution, such as:
demo:CMImage, demo:UVA_STD_IMAGE, demo:DualResImageCollection,
demo:TEI_TO_PDFDOC, and demo:XML_TO_HTMLDOC.
For more information about the demonstration objects, see:
http://fedora-commons.org/confluence/x/AwFI.
</comment>
<dsTypeModel ID="THUMBNAIL">
<form MIME="image/jpeg"></form>
</dsTypeModel>
<dsTypeModel ID="RAW">
<form MIME="application/octet-stream"></form>
</dsTypeModel>
<dsTypeModel ID="RAW_INFO">
<form MIME="text/plain"></form>
</dsTypeModel>
<dsTypeModel ID="MP4">
<form MIME="video/mp4"></form>
</dsTypeModel>
<dsTypeModel ID="OGV">
<form MIME="video/ogg"></form>
</dsTypeModel>
</dsCompositeModel>
"""
client = get_client()
obj = client.createObject(pp("EPISODE"), label=u"Content Model for video objects")
obj.addDataStream(u"RELS-EXT")
rels = obj["RELS-EXT"]
rels[NS.rdfs.hasModel].append(dict(type=u"uri", value=u"info:fedora/fedora-system:ContentModel-3.0"))
rels.checksumType = u"DISABLED"
rels.setContent()
obj.addDataStream(
u"DS-COMPOSITE-MODEL",
DS_COMP_MODEL,
label=u"datastream composite model",
formatURI=u"info:fedora/fedora-system:FedoraDSCompositeModel-1.0",
logMessage=u"adding ds comp model",
)
comp = obj["DS-COMPOSITE-MODEL"]
comp.checksumType = u"DISABLED"
dc = obj["DC"]
for datastream in [dc, comp, rels]:
datastream.versionable = False
return True
def testInstallPurgeEpisodeContentModel(self):
# episode is installed in setup, so it should fail to add it again
self.assertRaises(FedoraConnectionException, install_episode)
purge_episode()
# removing it twice should raise the same exception
self.assertRaises(FedoraConnectionException, purge_episode)
# when not already in the system, install should work
install_episode()
client = get_client()
client.getObject(pp('EPISODE')) # as should get
def testInstallPurgeEpisodeContentModel(self):
# episode is installed in setup, so it should fail to add it again
self.assertRaises(FedoraConnectionException, install_episode)
purge_episode()
# removing it twice should raise the same exception
self.assertRaises(FedoraConnectionException, purge_episode)
# when not already in the system, install should work
install_episode()
client = get_client()
client.getObject(pp('EPISODE')) # as should get
def purge_episode():
client = get_client()
client.deleteObject(pp("EPISODE"), logMessage=u"clearing episode model")
def purge_episode():
client = get_client()
client.deleteObject(pp('EPISODE'), logMessage=u'clearing episode model')
def install_episode():
DS_COMP_MODEL = u"""
<dsCompositeModel xmlns="info:fedora/fedora-system:def/dsCompositeModel#">
<comment xmlns="info:fedora/fedora-system:def/comment#">
This DS-COMPOSITE-MODEL datastream is included as a starting point to
assist in the creation of a content model. The DS-COMPOSITE-MODEL
should define the datastreams that are required for any objects
conforming to this content model.
For more information about content models, see:
http://fedora-commons.org/confluence/x/dgBI.
For examples of completed content model objects, see the demonstration
objects included with your Fedora distribution, such as:
demo:CMImage, demo:UVA_STD_IMAGE, demo:DualResImageCollection,
demo:TEI_TO_PDFDOC, and demo:XML_TO_HTMLDOC.
For more information about the demonstration objects, see:
http://fedora-commons.org/confluence/x/AwFI.
</comment>
<dsTypeModel ID="THUMBNAIL">
<form MIME="image/jpeg"></form>
</dsTypeModel>
<dsTypeModel ID="RAW">
<form MIME="application/octet-stream"></form>
</dsTypeModel>
<dsTypeModel ID="RAW_INFO">
<form MIME="text/plain"></form>
</dsTypeModel>
<dsTypeModel ID="MP4">
<form MIME="video/mp4"></form>
</dsTypeModel>
<dsTypeModel ID="OGV">
<form MIME="video/ogg"></form>
</dsTypeModel>
</dsCompositeModel>
"""
client = get_client()
obj = client.createObject(pp('EPISODE'),
label=u'Content Model for video objects')
obj.addDataStream(u'RELS-EXT')
rels = obj['RELS-EXT']
rels[NS.rdfs.hasModel].append(
dict(type=u'uri', value=u'info:fedora/fedora-system:ContentModel-3.0'))
rels.checksumType = u'DISABLED'
rels.setContent()
obj.addDataStream(
u'DS-COMPOSITE-MODEL',
DS_COMP_MODEL,
label=u'datastream composite model',
formatURI=u'info:fedora/fedora-system:FedoraDSCompositeModel-1.0',
logMessage=u'adding ds comp model')
comp = obj['DS-COMPOSITE-MODEL']
comp.checksumType = u'DISABLED'
dc = obj['DC']
for datastream in [dc, comp, rels]:
datastream.versionable = False
return True
class VideoObjectManager(FedoraObjectManager):
__cmodel__ = u'info:fedora/' + pp('EPISODE')
@staticmethod
def create(user, raw, raw_info, mp4, ogv, thumbnail, dc={}):
fc = get_client()
pid = fc.getNextPID(RTV_PID_NAMESPACE)
obj = fc.createObject(pid, label=unicode(dc['title']))
obj.addDataStream(u'RELS-EXT')
rels = obj['RELS-EXT']
rels[NS.rdfs.hasModel].append(
dict(type=u'uri', value=VideoObjectManager.__cmodel__))
rels.checksumType = u'DISABLED'
rels.setContent()
# info on raw media
obj.addDataStream('RAW_INFO',
raw_info,
controlGroup=u'M',
label=u'source media info',
mimeType=u'text/plain',
checksumType=u'DISABLED',
versionable=False)
info = obj['RAW_INFO']
info.setContent()
# media datastreams
dstreams = (
# datastream name, url, mimetype
('RAW', raw, u'application/octet-stream', u'R'),
('MP4', mp4, u'video/mp4', u'R'),
('OGV', ogv, u'video/ogv', u'R'),
('THUMBNAIL', thumbnail, u'image/jpeg', u'R'))
for (dsname, url, mime, cgroup) in dstreams:
obj.addDataStream(dsname,
controlGroup=cgroup,
label=u'media ds',
logMessage=u'adding ds',
location=unicode(url),
mimeType=mime,
checksumType=u'DISABLED',
versionable=False)
# These 2 lines basically commit the change to the fedora object,
# which helps us avoid getting object locked errors when adding
# numerous datastreams to an object in a short period of time.
ds = obj[dsname]
ds.setContent()
vid = VideoObjectManager.get(pid=pid)
if dc:
vid.dict_to_dc(dc)
return vid
@staticmethod
def all():
fc = get_client()
sparql = '''prefix rdfs: <%s>
select ?s where {?s rdfs:hasModel <%s>.}
''' % (NS.rdfs, VideoObjectManager.__cmodel__)
result = fc.searchTriples(sparql)
pids = []
for r in result:
pids.append(unicode(r['s']['value'].replace('info:fedora/', '')))
vids = [Video(pid) for pid in pids]
return vids
@staticmethod
def get(**kwargs):
fc = get_client()
subqueries = []
fields = kwargs.keys()
for k, v in kwargs.iteritems():
subqueries.append(''.join([k, '~', v]))
query = unicode(' '.join(subqueries))
results = [obj for obj in fc.searchObjects(query, fields)]
if len(results) > 1:
raise MultipleResultsError('Search yielded %d results' %
len(results))
elif len(results) == 0:
raise ObjectNotFoundError('The search "%s" yielded 0 results' %
query)
return Video(pid=results[0]['pid'])
