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##############################################################################
# Copyright (c) 2016 ZTE Corporation
# feng.xiaowei@zte.com.cn
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
from bson.objectid import ObjectId
from concurrent.futures import ThreadPoolExecutor
from operator import itemgetter
def thread_execute(method, *args, **kwargs):
with ThreadPoolExecutor(max_workers=2) as executor:
result = executor.submit(method, *args, **kwargs)
return result
class MemCursor(object):
def __init__(self, collection):
self.collection = collection
self.count = len(self.collection)
self.sorted = []
def _is_next_exist(self):
return self.count != 0
@property
def fetch_next(self):
return thread_execute(self._is_next_exist)
def next_object(self):
self.count -= 1
return self.collection.pop()
def sort(self, key_or_list):
key = key_or_list[0][0]
if key_or_list[0][1] == -1:
reverse = True
else:
reverse = False
if key_or_list is not None:
self.collection = sorted(self.collection,
key=itemgetter(key), reverse=reverse)
return self
def limit(self, limit):
if limit != 0 and limit < len(self.collection):
self.collection = self.collection[0:limit]
self.count = limit
return self
class MemDb(object):
def __init__(self):
self.contents = []
pass
def _find_one(self, spec_or_id=None, *args):
if spec_or_id is not None and not isinstance(spec_or_id, dict):
spec_or_id = {"_id": spec_or_id}
if '_id' in spec_or_id:
spec_or_id['_id'] = str(spec_or_id['_id'])
cursor = self._find(spec_or_id, *args)
for result in cursor:
return result
return None
def find_one(self, spec_or_id=None, *args):
return thread_execute(self._find_one, spec_or_id, *args)
def _insert(self, doc_or_docs, check_keys=True):
docs = doc_or_docs
return_one = False
if isinstance(docs, dict):
return_one = True
docs = [docs]
if check_keys:
for doc in docs:
self._check_keys(doc)
ids = []
for doc in docs:
if '_id' not in doc:
doc['_id'] = str(ObjectId())
if not self._find_one(doc['_id']):
ids.append(doc['_id'])
self.contents.append(doc_or_docs)
if len(ids) == 0:
return None
if return_one:
return ids[0]
else:
return ids
def insert(self, doc_or_docs, check_keys=True):
return thread_execute(self._insert, doc_or_docs, check_keys)
@staticmethod
def _compare_date(spec, value):
for k, v in spec.iteritems():
if k == '$gte' and value >= v:
return True
return False
@staticmethod
def _in(content, *args):
for arg in args:
for k, v in arg.iteritems():
if k == 'start_date':
if not MemDb._compare_date(v, content.get(k)):
return False
elif k == 'trust_indicator.current':
if content.get('trust_indicator').get('current') != v:
return False
elif content.get(k, None) != v:
return False
return True
def _find(self, *args):
res = []
for content in self.contents:
if self._in(content, *args):
res.append(content)
return res
def find(self, *args):
return MemCursor(self._find(*args))
def _update(self, spec, document, check_keys=True):
updated = False
if check_keys:
self._check_keys(document)
for index in range(len(self.contents)):
content = self.contents[index]
if self._in(content, spec):
for k, v in document.iteritems():
updated = True
content[k] = v
self.contents[index] = content
return updated
def update(self, spec, document, check_keys=True):
return thread_execute(self._update, spec, document, check_keys)
def _remove(self, spec_or_id=None):
if spec_or_id is None:
self.contents = []
if not isinstance(spec_or_id, dict):
spec_or_id = {'_id': spec_or_id}
for index in range(len(self.contents)):
content = self.contents[index]
if self._in(content, spec_or_id):
del self.contents[index]
return True
return False
def remove(self, spec_or_id=None):
return thread_execute(self._remove, spec_or_id)
def clear(self):
self._remove()
def _check_keys(self, doc):
for key in doc.keys():
if '.' in key:
raise NameError('key {} must not contain .'.format(key))
if key.startswith('$'):
raise NameError('key {} must not start with $'.format(key))
if isinstance(doc.get(key), dict):
self._check_keys(doc.get(key))
pods = MemDb()
projects = MemDb()
testcases = MemDb()
results = MemDb()
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