--- /dev/null
+from sfa.util.sfatime import utcparse, datetime_to_string
+from types import StringTypes
+from datetime import datetime
+from sfa.util.xml import XML
+from sfa.trust.gid import GID
+
+class Record:
+
+ def __init__(self, dict=None, xml=None):
+ if dict:
+ self.load_from_dict(dict)
+ elif xml:
+ xml_record = XML(xml)
+ xml_dict = xml_record.todict()
+ self.load_from_dict(xml_dict)
+
+ # xxx fixme
+ # turns out the date_created field is received by the client as a 'created' int
+ # (and 'last_updated' does not make it at all)
+ # let's be flexible
+ def date_repr (self,fields):
+ if not isinstance(fields,list): fields=[fields]
+ for field in fields:
+ value=getattr(self,field,None)
+ if isinstance (value,datetime):
+ return datetime_to_string (value)
+ elif isinstance (value,(int,float)):
+ return datetime_to_string(utcparse(value))
+ # fallback
+ return "** undef_datetime **"
+
+ def todict (self):
+ d=self.__dict__
+ keys=[k for k in d.keys() if not k.startswith('_')]
+ return dict ( [ (k,d[k]) for k in keys ] )
+
+ def load_from_dict (self, d):
+ for (k,v) in d.iteritems():
+ # experimental
+ if isinstance(v, StringTypes) and v.lower() in ['true']: v=True
+ if isinstance(v, StringTypes) and v.lower() in ['false']: v=False
+ setattr(self,k,v)
+
+ # in addition we provide convenience for converting to and from xml records
+ # for this purpose only, we need the subclasses to define 'fields' as either
+ # a list or a dictionary
+ def xml_fields (self):
+ fields=self.fields
+ if isinstance(fields,dict): fields=fields.keys()
+ return fields
+
+ def save_as_xml (self):
+ # xxx not sure about the scope here
+ input_dict = dict( [ (key, getattr(self.key), ) for key in self.xml_fields() if getattr(self,key,None) ] )
+ xml_record=XML("<record />")
+ xml_record.parse_dict (input_dict)
+ return xml_record.toxml()
+
+ def dump(self, format=None, dump_parents=False):
+ if not format:
+ format = 'text'
+ else:
+ format = format.lower()
+ if format == 'text':
+ self.dump_text(dump_parents)
+ elif format == 'xml':
+ print self.save_to_string()
+ elif format == 'simple':
+ print self.dump_simple()
+ else:
+ raise Exception, "Invalid format %s" % format
+
+ def dump_text(self, dump_parents=False):
+ # print core fields in this order
+ core_fields = [ 'hrn', 'type', 'authority', 'date_created', 'created', 'last_updated', 'gid', ]
+ print "".join(['=' for i in range(40)])
+ print "RECORD"
+ print " hrn:", self.hrn
+ print " type:", self.type
+ print " authority:", self.authority
+ print " date created:", self.date_repr( ['date_created','created'] )
+ print " last updated:", self.date_repr('last_updated')
+ print " gid:"
+ if self.gid:
+ print GID(self.gid).dump_string(8, dump_parents)
+
+ # print remaining fields
+ for attrib_name in dir(self):
+ attrib = getattr(self, attrib_name)
+ # skip internals
+ if attrib_name.startswith('_'): continue
+ # skip core fields
+ if attrib_name in core_fields: continue
+ # skip callables
+ if callable (attrib): continue
+ print " %s: %s" % (attrib_name, attrib)
+
+ def dump_simple(self):
+ return "%s"%self