def get(self, span_or_address):
"Print content for virtual positions at address or in range. "
if not hasattr(span_or_address, 'start'):
addr = span_or_address
ccnt = addr.depth()
if ccnt >= 5:
# Retrieve one or more vpos for vstr in Entry
raise Exception("Vpos unhandled: %s" % ccnt)
elif ccnt == 4:
# Retrieve full vdata for given vstream of Entry
node, vtype = addr.split()
assert vtype.isroot, vtype
# Retrieve Entry vstream
entry = api.get(node)
# LOCAL
## XXX: db import.. move to API
#from google.appengine.ext import db
#logging.info([vtype, entry.content])
#vstr = db.get(entry.content[vtype[0]-1])
#start = span_or_address
##offset = xu88.Offset(
## start.split()[0].subcomponent(entry.leafs+1).digits)
## FIXME: ugly:
#offset = xu88.Offset((len(start)-1) * '0.' +
# str(entry.leafs))
#span = xu88.Span(start, offset)
##print span, `span`, str(span)
##print span.start
##print span.end()
vdata = entry.fetch_content(vtype[0])
# Identify vstream
span = entry.get_content_span()
self.response.headers["Content-Location"] = ''
s = StringIO()
span.write(s)
self.response.headers["Content-ID"] = s.getvalue()
self.response.headers["Content-Location"] = '/content/%s' %\
s.getvalue().replace('.0.', '/')
return vdata.data
elif ccnt == 3:
# redirect to a list of all vstr for Entry
# Retrieve all of vstr in Entry
start = addr
node = api.get(start) # Get Entry
#print node
offset = xu88.Offset((len(addr)-2) * '0.' +
str(node.leafs))
span = xu88.Span(addr, offset)
#print span
else:
raise "RouteError: /content/%s" % addr
else:
span = span_or_address
return api.deref(span)
def get(self, t_addr):
"Get the Node at address node(/channel(/entry)). "
tcnt = t_addr.depth()
if tcnt > 3:
raise RouteError("Node view cannot render virtual address: %s. " %
t_addr)
v = api.get(t_addr)
return v
def open(self, docid):
doc = api.get(docid)
assert isinstance(doc, Entry)
self.session[docid] = doc
return doc
def exists(self, docid):
try:
doc = api.get(docid)
except NotFound, e:
return False
def get(self, span_or_address):
"""Print nodes at address or range. """
if hasattr(span_or_address, 'start'):
return '\r\n'.join(map(str, api.list_nodes(span_or_address)))
else:
return str(api.get(span_or_address))
