import json
+import uuid
-# xxx php has uniqid, need to find a module for that
-counter=1
-def uniqid (): global counter; counter += 1; return counter
+def uniqid ():
+ return uuid.uuid4().hex
class ManifoldQuery:
# xxx unique can be removed, but for now we pad the js structure
unique=0
+ aq = self.analyzed_query.to_json() if self.analyzed_query else 'null'
# subqueries is a dictionary method:query
- sq=", ".join ( [ "'%s':%s" % (method, subquery.to_json())
+ if not self.subqueries:
+ sq="{}"
+ else:
+ sq=", ".join ( [ "'%s':%s" % (method, subquery.to_json())
for (method, subquery) in self.subqueries.iteritems()])
+ sq="{%s}"%sq
- aq = self.analyzed_query.to_json() if self.analyzed_query else 'null'
-
- return "new Query('%(a)s', '%(m)s', '%(t)s', %(f)s, %(p)s, %(c)s, %(unique)s, '%(uuid)s', %(aq)s, {{%(sq)s}})"%locals()
+ return """ new Query('%(a)s', '%(m)s', '%(t)s', %(f)s, %(p)s, %(c)s, %(unique)s, '%(uuid)s', %(aq)s, %(sq)s)"""%locals()
+
+ # this builds a ManifoldQuery object from a dict as received from javascript through its ajax request
+ # e.g. here's what I captured from the server's output
+ # incoming POST <QueryDict: {u'query[method]': [u'slice'], u'query[fields][]': [u'slice_hrn'], u'query[timestamp]': [u'latest'], u'query[action]': [u'get']}>
+ def fill_from_dict (self, d):
+ for key in d.keys():
+ for arg in ['action', 'method', 'filters', 'fields', 'timestamp', 'params']:
+ if arg in key:
+ # dirty hack around fields; fields must be a list
+ if arg == 'fields':
+ setattr(self, arg, [d[key]])
+ else:
+ setattr(self, arg, d[key])
+ break
+
+
+
+ def analyze_subqueries(self):
+ analyzed_query = ManifoldQuery()
+ analyzed_query.uuid = self.uuid
+ analyzed_query.action = self.action
+ analyzed_query.method = self.method
+ analyzed_query.timestamp = self.timestamp
+
+ # analyse query filters
+ # filter syntax : ['key', 'oparation', 'value']
+ for filter in self.filters:
+ key = filter[0]
+ operation = filter[1]
+ value = filter[2]
+ if '.' in key:
+ method = key.split('.')[0]
+ field = key.split('.')[1]
+ if not analyzed_query.subqueries[method]:
+ subquery = ManifoldQuery()
+ subquery.action = self.action
+ subquery.method = method
+ subquery.timestamp = self.timestamp
+ analyzed_query.subqueries[method] = subquery
+
+ analyzed_query.subqueries[method].filters.append([field, operation, value])
+ else:
+ analyzed_query.filters.append(filter)
+
+ # analyse query params
+ # params syntax : params = {'param1': value1, 'param2': value2, ...}
+ for param in self.params.keys():
+ if '.' in param:
+ method = param.split('.')[0]
+ field = param.split('.')[1]
+ if not analyzed_query.subqueries[method]:
+ subquery = ManifoldQuery()
+ subquery.action = self.action
+ subquery.method = method
+ subquery.timestamp = self.timestamp
+ analyzed_query.subqueries[method] = subquery
+
+ analyzed_query.subqueries[method].params[field] = self.params[param]
+ else:
+ analyzed_query.params[param] = self.params[param]
+
+ # analyse query fields
+ # fields syntax: fields = [element1, element2, ....]
+ for element in self.fields:
+ if '.' in element:
+ method = element.split('.')[0]
+ field = element.split('.')[1]
+ if not analyzed_query.subqueries[method]:
+ subquery = ManifoldQuery()
+ subquery.action = self.action
+ subquery.method = method
+ subquery.timestamp = self.timestamp
+ analyzed_query.subqueries[method] = subquery
+
+ analyzed_query.subqueries[method].fields.append(field)
+ else:
+ analyzed_query.fields.append(element)
+
+
+ # default subqueries
+ if analyzed_query.method == 'slice':
+ if not analyzed_query.subqueries['resource']:
+ subquery = ManifoldQuery()
+ subquery.action = self.action
+ subquery.method = method
+ subquery.timestamp = self.timestamp
+ analyzed_query.subqueries['resource'] = subquery
+
+ if not analyzed_query.subqueries['lease']:
+ subquery = ManifoldQuery()
+ subquery.action = self.action
+ subquery.method = method
+ subquery.timestamp = self.timestamp
+ analyzed_query.subqueries['lease'] = subquery
+
+
+ self.analyzed_query = analyzed_query