def add_ejson_profile(data, fixup_obj_labels=True):
objkeys = dict([ (k, k) for obj in data for k in obj ])
#FIXME: reduce from 3 full passes through obj to 2 (don't think we can go lower than 2)
for k in objkeys:
kcount = reduce(lambda count, obj, k=k: count + int(k in obj), data, 0)
logger.debug("Key usage count %s: %i" % (k, kcount))
if not kcount:
del objkeys[k]
logger.debug("Modified data profile keys: " + repr(objkeys))
if fixup_obj_labels:
for obj in data:
for k in obj:
#Yes we could receive non-string "labels"
if not isinstance(k, basestring):
k = str(k)
new_k = UNSUPPORTED_IN_EXHIBITKEY.sub('_', k)
if not new_k or new_k[0].isdigit():
new_k = '_' + new_k
if k != new_k:
objkeys[new_k] = k
try:
del objkeys[k]
except KeyError:
pass
obj[new_k] = obj[k]
del obj[k]
#print >> sys.stderr, objkeys
return {"properties": [
{"property": k, "enabled": (k not in ("id", "label")), "label": v, "types": ["text"]} for k, v in objkeys.iteritems()
]}
def fixup_newkeys():
for k in newkeys:
if not isinstance(k, basestring):
#Yes we could receive non-string "labels"
k = unicode(k)
new_k = UNSUPPORTED_IN_EXHIBITKEY.sub(u'_', k)
if not new_k or new_k[0].isdigit():
new_k = u'_' + new_k
if k != new_k:
newkeys[new_k] = k
if k in newkeys: del newkeys[k]
def read_contentdm(site, collection=None, query=None, limit=None, logger=logging, proxy=None, cachedir='/tmp/.cache'):
'''
A generator of CDM records
First generates header info
>>> from zen.contentdm import read_contentdm
>>> results = read_contentdm('http://digital.library.louisville.edu/cdm4/', collection='/jthom', query=None, limit=None)
>>> results.next()
{'basequeryurl': 'http://digital.library.louisville.edu/cdm4/results.php?CISOOP1=any&CISOROOT=%2Fjthom&CISOBOX1=&CISOFIELD1=CISOSEARCHALL'}
>>> results.next()
{u'Title': u'60 years in darkness. ', u'Object_Type': u'Negatives, ', u'Source': u"4 x 5 in. b&w safety negative. Item no. 1979.33.1026 in the Jean Thomas, The Traipsin' Woman, Collection, University of Louisville Photographic Archives. ", u'Collection': u"Jean Thomas, The Traipsin' Woman, Collection, ",...}
The first yielded value is global metadata; the second is the record
for the first item in the collection/query, and so on until all the items
are returned, or the limit reached.
If you want to see the debug messages, just do (before calling read_contentdm for the first time):
>>> import logging; logging.basicConfig(level=logging.DEBUG)
for a nice-sized collection to try:
>>> read_contentdm('http://digital.library.louisville.edu/cdm4/', collection='/maps')
Auburn theater collection:
>>> read_contentdm('http://content.lib.auburn.edu', collection='/theatre01')
>>> read_contentdm('http://content.lib.auburn.edu', collection='/football')
i.e.: http://digital.library.louisville.edu/cdm4/browse.php?CISOROOT=/maps
See also:
* /cdm4/browse.php?CISOROOT=/football (51 items)
>>> results = read_contentdm('http://digital.library.louisville.edu/cdm4/', collection='/jthom', query=None, limit=None, proxy="http://*****:*****@name="searchResultsForm"]//a[starts-with(@href, "item_viewer.php")]')
def follow_pagination(doc):
#e.g. of page 1: http://digital.library.louisville.edu/cdm4/browse.php?CISOROOT=/afamoh
#e.g. of page 2: http://digital.library.louisville.edu/cdm4/browse.php?CISOROOT=/afamoh&CISOSTART=1,21
page_start = 1
while True:
items = doc.xml_select(u'//a[contains(@href, "item_viewer.php") or contains(@href, "document.php")]')
#items = list(items)
#for i in items: yield i
for i in items:
#logger.debug("item: {0}".format(i.title.encode('utf-8')))
yield i
next = [ l.href for l in doc.xml_select(u'//a[@class="res_submenu"]') if int(l.href.split(u',')[-1]) > page_start ]
if not next:
#e.g. http://vilda.alaska.edu/ uses yet another pattern with just @class=submenu links *sigh*
next = [ l.href for l in doc.xml_select(u'//a[@class="submenu"]') if u'CISOSTART' in l.href and int(l.href.split(u',')[-1]) > page_start ]
if not next:
break
page_start = int(next[0].split(u',')[-1])
url = absolutize(next[0], site)
resp, doc = cdmsite.index_page(url, "Next page URL: {0}")
return
items = follow_pagination(resultsdoc)
at_least_one = False
count = 0
for it in items:
at_least_one = True
pageuri = absolutize(it.href, site)
if pageuri in seen_links:
continue
seen_links.add(pageuri)
entry = {}
logger.debug("Processing item URL: {0}".format(pageuri))
(scheme, netloc, path, query, fragment) = split_uri_ref(pageuri)
entry['domain'] = netloc
params = parse_qs(query)
entry['cdm-coll'] = params['CISOROOT'][0].strip('/').split('/')[0]
entry['id'] = params['CISOPTR'][0]
logger.debug("Item id: {0}".format(entry['id']))
if entry['id'] in seen_ids:
continue
seen_ids.add(entry['id'])
entry['link'] = unicode(pageuri)
entry['local_link'] = '#' + entry['id']
resp, page, cachekey, cached = cdmsite.item_page(pageuri)
if cached:
entry = cached
else:
image = first_item(page.xml_select(u'//td[@class="tdimage"]//img'))
if image:
imageuri = absolutize(image.src, site)
entry['imageuri'] = imageuri
try:
entry['thumbnail'] = absolutize(dict(it.xml_parent.a.img.xml_attributes.items())[None, u'src'], site)
except AttributeError:
logger.debug("No thumbnail")
#entry['thumbnail'] = DEFAULT_RESOLVER.normalize(it.xml_parent.a.img.src, root)
#fields = page.xml_select(u'//tr[td[@class="tdtext"]]')
#fields = page.xml_select(u'//table[@class="metatable"]/tr')
fields = chain(page.xml_select(u'//tr[td[@class="tdtext"]]'), page.xml_select(u'//table[@class="metatable"]//tr'))
for f in fields:
#key = unicode(f.td[0].span.b).replace(' ', '_')
key = UNSUPPORTED_IN_EXHIBITKEY.sub(u'_', U(f.xml_select(u'td[1]//b')))
#logger.debug("{0}".format(key))
value = u''.join(CONTENT.dispatch(f.td[1]))
#value = u''.join(CONTENT.dispatch(f.xml_select(u'td[2]')))
entry[key] = unicode(value)
if u'Title' in entry:
#logger.debug("{0}".format(entry['Title']))
entry['label'] = entry['Title']
else:
entry['label'] = u'[NO LABEL AVAILABLE]'
if u"Location_Depicted" in entry:
locations = entry[u"Location_Depicted"].split(u', ')
#locations = [ l.replace(' (', ', ').replace(')', '').replace(' ', '+') for l in locations if l.strip() ]
locations = [ l.replace(' (', ', ').replace(')', '').replace('.', '') for l in locations if l.strip() ]
#print >> sys.stderr, "LOCATIONS", repr(locations)
entry[u"Locations_Depicted"] = locations
if u"Date_Original" in entry:
entry[u"Estimated_Original_Date"] = entry[u"Date_Original"].strip().replace('-', '5').replace('?', '')
entry[u"Subject"] = [ s for s in entry.get(u"Subject", u'').split(', ') if s.strip() ]
if cachedir:
try:
json_stream = open(os.path.join(cachedir, cachekey+'.extract.js'), 'w')
json.dump(entry, json_stream)
except IOError, ValueError:
pass
yield entry
count += 1
if limit and count >= limit:
logger.debug("Limit reached")
break
#Keeping it to avoid breaking what's working for now
objkeys = dict([ (k, k) for obj in data for k in obj ])
#FIXME: reduce from 3 full passes through obj to 2 (don't think we can go lower than 2)
for k in objkeys:
kcount = reduce(lambda count, obj, k=k: count + int(k in obj), data, 0)
logger.debug("Key usage count %s: %i" % (k, kcount))
if not kcount:
del objkeys[k]
logger.debug("Modified data profile keys: " + repr(objkeys))
if fixup_obj_labels:
for obj in data:
for k in obj:
#Yes we could receive non-string "labels"
if not isinstance(k, basestring):
k = str(k)
new_k = UNSUPPORTED_IN_EXHIBITKEY.sub('_', k)
if not new_k or new_k[0].isdigit():
new_k = '_' + new_k
if k != new_k:
objkeys[new_k] = k
try:
del objkeys[k]
except KeyError:
pass
obj[new_k] = obj[k]
del obj[k]
#print >> sys.stderr, objkeys
profile = {
"original_MIME_type": ctype,
"Akara_MIME_type_magic_guess": imt_saved,
