import datetime
import json
-
# handles serialization of datetime in json
DateEncoder = lambda obj: obj.strftime("%B %d, %Y %H:%M:%S") if isinstance(obj, datetime.datetime) else None
# support converting decimal in json
-encoder.FLOAT_REPR = lambda o: format(o, '.2f')
+json.encoder.FLOAT_REPR = lambda o: format(o, '.2f')
# handles decimal numbers serialization in json
class DecimalEncoder(json.JSONEncoder):
return (str(o) for o in [o])
return super(DecimalEncoder, self)._iterencode(o, markers)
-def dispatch(request, object_type, object_name):
-
- switch = {
- 'platform' : platform,
- 'slice' : slice,
- 'resource' : resource,
- 'user' : user
- }
-
- # platform is local
- if ((object_type == 'platform') or (object_type == 'testbed')) :
- object_type = 'local:platform'
- object_properties = ['platform', 'platform_longname', 'platform_url', 'platform_description','gateway_type'];
- return switch.get('platform', error)(request, object_name, object_properties)
- else :
- query = Query.get('local:object').filter_by('table', '==', object_type).select('column.name')
- results = execute_query(request, query)
- if results :
- object_properties = []
- for r in results[0]['column'] :
- object_properties.append(r['name'])
+class objectRequest(object):
+
+ def __init__(self, request, object_type, object_name):
+ self.type = object_type
+ self.name = object_name
+ self.properties = []
+ self.filters = {}
+ self.options = None
+
+ self.request = request
+
+ if ((self.type == 'platform') or (self.type == 'testbed')) :
+ self.type = 'local:platform'
+ self.id = 'platform'
+ self.properties = ['platform', 'platform_longname', 'platform_url', 'platform_description','gateway_type'];
+ self.filters['disabled'] = '0'
+ self.filters['gateway_type'] = 'sfa'
+ self.filters['platform'] = '!myslice'
else :
- return error(request, object_name, {})
- return switch.get(object_type, error)(request, object_name, object_properties)
-
-# if request.method == 'GET':
-# return switch.get(request, object_type, object_name, object_properties)
-# elif request.method == 'POST':
-# return post(request, object_type, object_name)
+ self.id = 'hrn'
+ query = Query.get('local:object').filter_by('table', '==', self.type).select('column.name')
+ results = execute_query(self.request, query)
+ if results :
+ for r in results[0]['column'] :
+ self.properties.append(r['name'])
+ else :
+ return error('db error')
+ return None
+
+ def addFilters(self, properties):
+ selected_properties = []
+ for p in properties :
+ if p in self.properties :
+ selected_properties.append(p)
+ self.properties = selected_properties
+ self.setId()
+
+ def setId(self):
+ if self.id in self.properties :
+ self.properties.remove(self.id)
+ [self.id].extend(self.properties)
+
+ def execute(self):
+ query = Query.get(self.type).select(self.properties)
+ if self.filters :
+ for k, f in self.filters.iteritems() :
+ if (f[:1] == "!") :
+ query.filter_by(k, '!=', f[1:])
+ elif (f[:2] == ">=") :
+ query.filter_by(k, '>=', f[2:])
+ elif (f[:1] == ">") :
+ query.filter_by(k, '>', f[1:])
+ elif (f[:2] == "<=") :
+ query.filter_by(k, '<=', f[2:])
+ elif (f[:1] == "<") :
+ query.filter_by(k, '<', f[1:])
+ else :
+ query.filter_by(k, '==', f)
+ return execute_query(self.request, query)
-def platform(request, object_name, object_properties):
- query = Query().get('local:platform').filter_by('disabled', '==', '0').filter_by('gateway_type', '==', 'sfa').filter_by('platform', '!=', 'myslice').select(object_properties)
- return send(request, execute_query(request, query), object_properties)
-
-def slice(request, object_name, object_properties):
- query = Query().get('slice').filter_by('user.user_hrn', '==', '$user_hrn').select(object_properties)
- return send(request, execute_query(request, query), object_properties)
-
-def resource(request, object_name, object_properties):
- pass
-
-def user(request, object_name, object_properties):
- query = Query().get('user').filter_by('user_hrn', '==', '$user_hrn').select(object_properties)
- return send(request, execute_query(request, query), object_properties)
-
-def send(request, response, object_properties):
+def dispatch(request, object_type, object_name):
+
+ o = objectRequest(request, object_type, object_name)
+
+ if request.method == 'POST':
+ req_items = request.POST
+ elif request.method == 'GET':
+ req_items = request.GET
+
+ print req_items
+
+ for el in req_items.items():
+ if el[0].startswith('filters'):
+ o.filters[el[0][8:-1]] = el[1]
+ elif el[0].startswith('columns'):
+ o.addFilters(req_items.getlist('columns[]'))
+ elif el[0].startswith('options'):
+ o.options = req_items.getlist('options[]')
+
+ response = o.execute()
+
if request.path.split('/')[1] == 'rest' :
response_data = response
+ print response
return HttpResponse(json.dumps(response_data, cls=DecimalEncoder, default=DateEncoder), content_type="application/json")
elif request.path.split('/')[1] == 'table' :
- return render_to_response('table-default.html', {'data' : response, 'properties' : object_properties})
+ print o.properties
+ print o.options
+ print response
+ return render_to_response('table-default.html', {'data' : response, 'properties' : o.properties, 'id' : o.id, 'options' : o.options})
elif request.path.split('/')[1] == 'datatable' :
response_data = {}
- response_data['columns'] = object_properties
- response_data['labels'] = object_properties
- #response_data['labels'] = [ 'Platform', 'Name', 'Url', 'Description','Gateway Type' ]
+ response_data['columns'] = o.properties
+ response_data['labels'] = o.properties
response_data['data'] = []
response_data['total'] = len(response)
for r in response :
d = []
- for p in object_properties :
+ for p in o.properties :
d.append(r[p])
- print d
+ #print d
response_data['data'].append(d)
return HttpResponse(json.dumps(response_data, cls=DecimalEncoder, default=DateEncoder), content_type="application/json")
-def error(request, object_name, object_properties):
- return HttpResponse(json.dumps({'error' : 'an error has occurred'}), content_type="application/json")
\ No newline at end of file
+def error(msg):
+ return HttpResponse(json.dumps({'error' : msg}), content_type="application/json")