X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=rest%2F__init__.py;h=a8565963546a762a88ad2672103e85d694b25f0a;hb=a8b4d52df438751ce078700eab547e84075e9420;hp=892e4ca5a9488968badd7ddfb7903caadef7bbed;hpb=574ab14b3b3daf0f407dcc2a73a54ad5f87af372;p=myslice.git diff --git a/rest/__init__.py b/rest/__init__.py index 892e4ca5..a8565963 100644 --- a/rest/__init__.py +++ b/rest/__init__.py @@ -1,110 +1,193 @@ from manifold.core.query import Query +from manifoldapi.manifoldapi import execute_query -from django.views.generic.base import TemplateView - -from unfold.loginrequired import LoginRequiredView from django.http import HttpResponse -from manifold.core.query import Query, AnalyzedQuery -from manifold.manifoldapi import execute_query -from string import join +import decimal +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 -def dispatch(request, object_type, object_name): - - switch = { - 'platform' : platform, - 'slice' : slice, - 'user' : user - } +# support converting decimal in json +json.encoder.FLOAT_REPR = lambda o: format(o, '.2f') - # platform is local - if (object_type == 'platform') : - object_type = 'local:platform' - object_properties = ['platform', 'platform_longname', 'platform_url', 'platform_description','gateway_type']; - else : - query = Query.get('local:object').filter_by('table', '==', object_type).select('column.name') - results = execute_query(request, query) +# handles decimal numbers serialization in json +class DecimalEncoder(json.JSONEncoder): + def _iterencode(self, o, markers=None): + if isinstance(o, decimal.Decimal): + return (str(o) for o in [o]) + return super(DecimalEncoder, self)._iterencode(o, markers) + +class ObjectRequest(object): + + def __init__(self, request, object_type, object_name): + self.type = object_type + self.name = object_name + self.fields = [] + self.params = [] + self.filters = {} + self.options = None + + self.request = request + + if ((self.type == 'platform') or (self.type == 'testbed')) : + self.type = 'local:platform' + self.id = 'platform' + self.fields = ['platform', 'platform_longname', 'platform_url', 'platform_description','gateway_type']; + self.filters['disabled'] = '0' + self.filters['gateway_type'] = 'sfa' + self.filters['platform'] = '!myslice' + #elif(self.type.startswith('local:')): + elif ':' in self.type: + table = self.type.split(':') + prefix = table[0] + table = table[1] + + if prefix is 'local': + # XXX TODO: find a generic Query to get the fields like + # select column.name from local:object where table == local:user + table = self.type.split(':') + table = table[1] + if table == "user": + self.id = table + '_id' + self.fields = ['user_id', 'email', 'password', 'config','status']; + elif table == "account": + # XXX TODO: Multiple key for account = (platform_id, user_id) + self.id = "platform_id, user_id" + self.fields = ['platform_id', 'user_id', 'auth_type', 'config']; + elif table == "platform": + self.id = 'platform' + self.fields = ['platform', 'platform_longname', 'platform_url', 'platform_description','gateway_type']; + else: + # If we use prefix, set the key without the prefix then add it again + self.type = table + self.setKey() + self.setLocalFields() + self.type = prefix + ':' + table + else : + self.setKey() + self.setLocalFields() + + def setKey(self): + # What about key formed of multiple fields??? + query = Query.get('local:object').filter_by('table', '==', self.type).select('key') + results = execute_query(self.request, query) + print "key of object = %s" % results + if results : + for r in results[0]['key'] : + self.id = r + else : + raise Exception, 'Manifold db error' + + def setLocalFields(self): + query = Query.get('local:object').filter_by('table', '==', self.type).select('column.name') + results = execute_query(self.request, query) if results : - object_properties = [] for r in results[0]['column'] : - object_properties.append(r['name']) + self.fields.append(r['name']) else : - return error() - - return switch.get(object_type, error)(request, object_type, 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) - -def platform(): - return HttpResponse(json.dumps({'user' : 'error message'}), content_type="application/json") - -def slice(): - return HttpResponse(json.dumps({'user' : 'error message'}), content_type="application/json") - -def user(request, object_type, object_name, object_properties): - query = Query().get('user').filter_by('user_hrn', '==', '$user_hrn').select(object_properties) - #.select('slice.slice_hrn') + raise Exception, 'Manifold db error' + + def setFields(self, fields): +# selected_fields = [] +# for p in fields : +# if p in self.fields : +# selected_fields.append(p) + self.fields = fields - return send(request, execute_query(request, query), object_properties) - -def send(request, response, object_properties): - if request.path.split('/')[1] == 'rest' : - response_data = response - else : + + def applyFilters(self, query, force_filters = False): + if (force_filters and not self.filters) : + raise Exception, "Filters required" + 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 query + + def get(self): + query = Query.get(self.type) + if (self.id is not None) and (self.id not in self.fields) : + query.select(self.fields + [self.id]) + else : + query.select(self.fields) + + query = self.applyFilters(query) + return execute_query(self.request, query) + + def create(self): + query = Query.create(self.type) + # No filters for create + if self.params : + for p in self.params : + for k,v in p.iteritems() : + print "param: %s : %s" % (k,v) + query.set({k : v}) + print "query = ",query + else: + raise Exception, "Params are required for create" + return execute_query(self.request, query) + + def update(self): + query = Query.update(self.type) + query = self.applyFilters(query, True) + + if self.params : + for p in self.params : + for k,v in p.iteritems() : + print "param: %s : %s" % (k,v) + query.set({k : v}) + print "query = ",query + else: + raise Exception, "Params are required for update" + + if self.id is not None: + query.select(self.id) + + return execute_query(self.request, query) + + def delete(self): + query = Query.delete(self.type) + query = self.applyFilters(query, True) + if self.filters : + query.set(self.filters) + else: + raise Exception, "Filters are required for delete" + return execute_query(self.request, query) + + def json(self): + return HttpResponse(json.dumps(self.get(), cls=DecimalEncoder, default=DateEncoder), content_type="application/json") + + def datatable(self): + response = self.get() response_data = {} - response_data['columns'] = object_properties - response_data['labels'] = object_properties - #response_data['labels'] = [ 'Platform', 'Name', 'Url', 'Description','Gateway Type' ] + response_data['fields'] = self.fields + response_data['labels'] = self.fields response_data['data'] = [] response_data['total'] = len(response) for r in response : d = [] - for p in object_properties : + for p in self.fields : d.append(r[p]) - print d - response_data['data'].append(d) - #response_data['data'].append([ r['platform'], r['platform_longname'], r['platform_url'], r['platform_description'], r['gateway_type'] ]) - - return HttpResponse(json.dumps(response_data), content_type="application/json") - - - - - -def get(request, object_type, object_name, object_properties): - - query = Query().get(object_type).select(object_properties).filter_by('user_hrn', '=', '$user_hrn') - if (object_name) : - query = query.filter_by(object_type + '_hrn', '=', object_name) - - response = execute_query(request, query) - - response_data = {} - response_data['columns'] = object_properties - response_data['labels'] = object_properties - #response_data['labels'] = [ 'Platform', 'Name', 'Url', 'Description','Gateway Type' ] - response_data['data'] = [] - response_data['total'] = len(response) - for r in response : - d = [] - for p in object_properties : - d.append(r[p]) - print d - response_data['data'].append(d) - #response_data['data'].append([ r['platform'], r['platform_longname'], r['platform_url'], r['platform_description'], r['gateway_type'] ]) - - return HttpResponse(json.dumps(response_data), content_type="application/json") + return HttpResponse(json.dumps(response_data, cls=DecimalEncoder, default=DateEncoder), content_type="application/json") -def post(request, object_type, object_name): - pass +def error(msg): + return HttpResponse(json.dumps({'error' : msg}), content_type="application/json") -def error(): - return HttpResponse(json.dumps({'error' : 'error message'}), content_type="application/json") \ No newline at end of file +def success(msg): + return HttpResponse(json.dumps({'success' : msg}), content_type="application/json")