def load_multi(cls, ids):
""" Loads multiple entities from the datastore in batches. """
_log.debug('Looking up %s entities with ids: %s.' % (cls.__name__, ids))
def get_key(id):
key = googledatastore.Key()
path = key.path_element.add()
path.kind = cls.__name__
if isinstance(id, basestring):
path.name = id
else:
path.id = id
return key
def get_entity(result):
entity = cls()
entity._set_entity(result.entity)
return entity
l = []
for id in ids:
l.append(id)
if len(l) >= 10:
_log.debug('Fetching %s' % l)
req = googledatastore.LookupRequest()
req.key.extend(map(get_key, l))
resp = googledatastore.lookup(req)
for res in resp.found:
yield get_entity(res)
l = []
if len(l) > 0:
_log.debug('Fetching %s' % l)
req = googledatastore.LookupRequest()
req.key.extend(map(get_key, l))
resp = googledatastore.lookup(req)
for res in resp.found:
yield get_entity(res)
def read_rec(table_name, objid):
"""Generator that yields keyed recs from store."""
req = datastore.LookupRequest()
req.key.extend([make_key(table_name, objid)])
for found in datastore.lookup(req).found:
yield extract_entity(found)
def __lookup(self, transaction=None):
_log.debug('%s.__lookup()', type(self).__name__)
req = googledatastore.LookupRequest()
req.key.extend([self.__get_key()])
if transaction:
req.read_options.transaction = transaction
return googledatastore.lookup(req)
def checkDB(self,gitkit_user): req = datastore.BeginTransactionRequest() resp = datastore.begin_transaction(req) tx = resp.transaction req = datastore.LookupRequest() key = datastore.Key() path = key.path_element.add() path.kind = 'PSUsers' path.name = gitkit_user.user_id req.key.extend([key]) req.read_options.transaction = tx resp = datastore.lookup(req) req = datastore.CommitRequest() req.transaction = tx if resp.missing: user = req.mutation.insert.add() user.key.CopyFrom(key) userid_property = user.property.add() userid_property.name = 'userid' userid_property.value.string_value = gitkit_user.user_id display_name_property = user.property.add() display_name_property.name = 'display_name' display_name_property.value.string_value = gitkit_user.name photo_url_property = user.property.add() photo_url_property.name = 'photo_url' if gitkit_user.photo_url: photo_url_property.value.string_value = gitkit_user.photo_url else: photo_url_property.value.string_value = "/images/home/slider/slide1/cloud1.png" email_property = user.property.add() email_property.name = 'email' email_property.value.string_value = gitkit_user.email last_login_property = user.property.add() last_login_property.name = 'last_login' last_login_property.value.timestamp_microseconds_value = long(time.time() * 1e6) elif resp.found: user = resp.found[0].entity last_login_property = datastore.Property() last_login_property.name = 'last_login' for prop in user.property: if prop.name == 'last_login': prop.value.timestamp_microseconds_value = long(time.time() * 1e6) req.mutation.update.extend([user]) resp = datastore.commit(req) return None
def __lookup(self, transaction = None):
_log.debug('%s.__lookup()', type(self).__name__)
req = googledatastore.LookupRequest()
req.key.extend([self.__get_key()])
if transaction:
req.read_options.transaction = transaction
return googledatastore.lookup(req)
def read_rec(table_name, objid):
"""Generator that yields keyed recs from store."""
req = datastore.LookupRequest()
req.key.extend([make_key(table_name, objid)])
for found in datastore.lookup(req).found:
yield extract_entity(found)
def clouddatastore_client():
try:
logFormatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
root = logging.getLogger()
root.setLevel(logging.INFO)
ch = logging.StreamHandler(sys.stdout)
ch.setLevel(logging.INFO)
ch.setFormatter(logFormatter)
root.addHandler(ch)
logging.getLogger('oauth2service.client').setLevel(logging.INFO)
logging.getLogger('apiclient.discovery').setLevel(logging.INFO)
credentials = GoogleCredentials.get_application_default()
http = httplib2.Http()
http = credentials.authorize(http)
credentials.refresh(http)
credentials.access_token = 'foo'
print credentials.access_token
datastore.set_options(project_id='p0', credentials=credentials)
req = datastore.LookupRequest()
key = datastore.Key()
path = key.path.add()
path.kind = 'Employee'
path.name = 'aguadypoogznoqofmgmy'
req.keys.extend([key])
resp = datastore.lookup(req)
if resp.found:
entity = resp.found[0].entity
print (str(entity))
for prop in entity.properties:
print 'Lookup: ' + str(prop)
else:
print 'entity not found; initialize entity and insert..'
req = datastore.CommitRequest()
req.mode = datastore.CommitRequest.NON_TRANSACTIONAL
employee = req.mutations.add().insert
path = employee.key.path.add()
path.kind = 'Employee'
path.name = 'aguadypoogznoqofmgmy'
res = datastore.commit(req)
print res
except HttpError as err:
print 'Error:', pprint.pprint(err.content)
except AccessTokenRefreshError:
print ("Credentials have been revoked or expired, please re-run"
"the application to re-authorize")
def load_multi(cls, ids):
""" Loads multiple entities from the datastore in batches. """
_log.debug('Looking up %s entities with ids: %s.' %
(cls.__name__, ids))
def get_key(id):
key = googledatastore.Key()
path = key.path_element.add()
path.kind = cls.__name__
if isinstance(id, basestring):
path.name = id
else:
path.id = id
return key
def get_entity(result):
entity = cls()
entity._set_entity(result.entity)
return entity
l = []
for id in ids:
l.append(id)
if len(l) >= 10:
_log.debug('Fetching %s' % l)
req = googledatastore.LookupRequest()
req.key.extend(map(get_key, l))
resp = googledatastore.lookup(req)
for res in resp.found:
yield get_entity(res)
l = []
if len(l) > 0:
_log.debug('Fetching %s' % l)
req = googledatastore.LookupRequest()
req.key.extend(map(get_key, l))
resp = googledatastore.lookup(req)
for res in resp.found:
yield get_entity(res)
def tryit():
try:
# Create a RPC request to begin a new transaction.
# XXX req = datastore.BeginTransactionRequest()
# Execute the RPC synchronously.
#XXX resp = datastore.begin_transaction(req)
# Get the transaction handle from the response.
# Create a RPC request to get entities by key.
req = datastore.LookupRequest()
# Create a new entity key.
key = datastore.Key()
# Set the entity key with only one `path_element`: no parent.
path = key.path_element.add()
path.kind = 'kindlooptest'
path.name = 'ebadbec'
#XXX path.name = 'bogus'
# Add one key to the lookup request.
req.key.extend([key])
# Set the transaction, so we get a consistent snapshot of the
# entity at the time the transaction started.
# Execute the RPC and get the response.
resp = datastore.lookup(req)
# Create a RPC request to commit the transaction.
# Set the transaction to commit.
if resp.found:
# print "found"
pass
else:
print "missing"
except datastore.RPCError as e:
# RPCError is raised if any error happened during a RPC.
# It includes the `method` called and the `reason` of the
# failure as well as the original `HTTPResponse` object.
logging.error('Error while doing datastore operation')
logging.error('RPCError: %(method)s %(reason)s',
{'method': e.method,
'reason': e.reason})
logging.error('HTTPError: %(status)s %(reason)s',
{'status': e.response.status,
'reason': e.response.reason})
return
def save_batch(entities):
req = googledatastore.BeginTransactionRequest()
resp = googledatastore.begin_transaction(req)
transaction = resp.transaction
# Bulk lookup
req = googledatastore.LookupRequest()
req.key.extend([entity.__get_key() for entity in entities])
req.read_options.transaction = transaction
resp = googledatastore.lookup(req)
# Update created / modified times.
missing = set()
for result in resp.missing:
key = result.entity.key.path_element[0]
missing.add(key.id or key.name)
for entity in entities:
entity.modified_time = time
if entity._get_id() in missing:
entity.created_time = time
# Bulk upsert
req = googledatastore.CommitRequest()
req.transaction = transaction
req.mutation.upsert.extend([entity._get_entity() for entity in entities])
googledatastore.commit(req)
def save_batch(entities):
req = googledatastore.BeginTransactionRequest()
resp = googledatastore.begin_transaction(req)
transaction = resp.transaction
# Bulk lookup
req = googledatastore.LookupRequest()
req.key.extend([entity.__get_key() for entity in entities])
req.read_options.transaction = transaction
resp = googledatastore.lookup(req)
# Update created / modified times.
missing = set()
for result in resp.missing:
key = result.entity.key.path_element[0]
missing.add(key.id or key.name)
for entity in entities:
entity.modified_time = time
if entity._get_id() in missing:
entity.created_time = time
# Bulk upsert
req = googledatastore.CommitRequest()
req.transaction = transaction
req.mutation.upsert.extend(
[entity._get_entity() for entity in entities])
googledatastore.commit(req)
def cbquery(self, camid, field):
camkey = datastore.Key()
path = camkey.path_element.add()
path.kind = 'PSCams'
path.name = camid
req = datastore.LookupRequest()
req.key.extend([camkey])
resp = datastore.lookup(req)
if resp.found:
pscam = resp.found[0].entity
password_property = datastore.Property()
password_property.name = field
for prop in pscam.property:
if prop.name == field:
val = prop.value.string_value
result = [camid, val]
else:
result = [camid, field]
return result
def cbquery(self,camid,field): camkey = datastore.Key() path = camkey.path_element.add() path.kind = 'PSCams' path.name = camid req = datastore.LookupRequest() req.key.extend([camkey]) resp = datastore.lookup(req) if resp.found: pscam = resp.found[0].entity password_property = datastore.Property() password_property.name = field for prop in pscam.property: if prop.name == field: val = prop.value.string_value result = [camid,val] else: result = [camid,field] return result
def main():
# Set dataset id from command line argument.
if len(sys.argv) < 2:
print 'Usage: adams.py <DATASET_ID>'
sys.exit(1)
# Set the dataset from the command line parameters.
datastore.set_options(dataset=sys.argv[1])
try:
# Create a RPC request to write mutations outside of a transaction.
req = datastore.BlindWriteRequest()
# Add mutation that update or insert one entity.
entity = req.mutation.upsert.add()
# Set the entity key with only one `path_element`: no parent.
path = entity.key.path_element.add()
path.kind = 'Trivia'
path.name = 'hgtg'
# Add two entity properties:
# - a utf-8 string: `question`
property = entity.property.add()
property.name = 'questions'
value = property.value.add()
value.string_value = 'Meaning of life?'
# - a 64bit integer: `answer`
property = entity.property.add()
property.name = 'answer'
value = property.value.add()
value.integer_value = 42
# Execute the RPC synchronously and ignore the response.
datastore.blind_write(req)
# Create a RPC request to get entities by key.
req = datastore.LookupRequest()
# Add one key to lookup w/ the same entity key.
req.key.extend([entity.key])
# Execute the RPC and get the response.
resp = datastore.lookup(req)
# Found one entity result.
entity = resp.found[0].entity
# Get question property value.
question = entity.property[0].value[0].string_value
# Get answer property value.
answer = entity.property[1].value[0].integer_value
# Print the question and read one line from stdin.
print question
result = raw_input('> ')
if result == str(answer):
print ('fascinating, extraordinary and, '
'when you think hard about it, completely obvious.')
else:
print "Don't Panic!"
except datastore.RPCError as e:
# RPCError is raised if any error happened during a RPC.
# It includes the `method` called and the `reason` of the
# failure as well as the original `HTTPResponse` object.
logging.error('Error while doing datastore operation')
logging.error('RPCError: %(method)s %(reason)s',
{'method': e.method,
'reason': e.reason})
logging.error('HTTPError: %(status)s %(reason)s',
{'status': e.response.status,
'reason': e.response.reason})
return
def read_rec(table_name, objid):
req = datastore.LookupRequest()
req.key.extend([make_key(table_name, objid)])
for found in datastore.lookup(req).found:
yield extract_entity(found)
def main():
# Set dataset id from command line argument.
if len(sys.argv) < 2:
print 'Usage: adams.py <DATASET_ID>'
sys.exit(1)
# Set the dataset from the command line parameters.
datastore.set_options(dataset=sys.argv[1])
try:
# Create a RPC request to begin a new transaction.
req = datastore.BeginTransactionRequest()
# Execute the RPC synchronously.
resp = datastore.begin_transaction(req)
# Get the transaction handle from the response.
tx = resp.transaction
# Create a RPC request to get entities by key.
req = datastore.LookupRequest()
# Create a new entity key.
key = datastore.Key()
# Set the entity key with only one `path_element`: no parent.
path = key.path_element.add()
path.kind = 'Trivia'
path.name = 'hgtg'
# Add one key to the lookup request.
req.key.extend([key])
# Set the transaction, so we get a consistent snapshot of the
# entity at the time the transaction started.
req.read_options.transaction = tx
# Execute the RPC and get the response.
resp = datastore.lookup(req)
# Create a RPC request to commit the transaction.
req = datastore.CommitRequest()
# Set the transaction to commit.
req.transaction = tx
if resp.found:
# Get the entity from the response if found.
entity = resp.found[0].entity
else:
# If no entity was found, insert a new one in the commit request mutation.
entity = req.mutation.insert.add()
# Copy the entity key.
entity.key.CopyFrom(key)
# Add two entity properties:
# - a utf-8 string: `question`
prop = entity.property.add()
prop.name = 'question'
prop.value.string_value = 'Meaning of life?'
# - a 64bit integer: `answer`
prop = entity.property.add()
prop.name = 'answer'
prop.value.integer_value = 42
# Execute the Commit RPC synchronously and ignore the response:
# Apply the insert mutation if the entity was not found and close
# the transaction.
datastore.commit(req)
props = get_property_dict(entity)
# Get question property value.
question = props['question'].string_value
# Get answer property value.
answer = props['answer'].integer_value
# Print the question and read one line from stdin.
print question
result = raw_input('> ')
if result == str(answer):
print ('fascinating, extraordinary and, '
'when you think hard about it, completely obvious.')
else:
print "Don't Panic!"
except datastore.RPCError as e:
# RPCError is raised if any error happened during a RPC.
# It includes the `method` called and the `reason` of the
# failure as well as the original `HTTPResponse` object.
logging.error('Error while doing datastore operation')
logging.error('RPCError: %(method)s %(reason)s',
{'method': e.method,
'reason': e.reason})
logging.error('HTTPError: %(status)s %(reason)s',
{'status': e.response.status,
'reason': e.response.reason})
return
def checkDB(self, gitkit_user):
req = datastore.BeginTransactionRequest()
resp = datastore.begin_transaction(req)
tx = resp.transaction
req = datastore.LookupRequest()
key = datastore.Key()
path = key.path_element.add()
path.kind = 'PSUsers'
path.name = gitkit_user.user_id
req.key.extend([key])
req.read_options.transaction = tx
resp = datastore.lookup(req)
req = datastore.CommitRequest()
req.transaction = tx
if resp.missing:
user = req.mutation.insert.add()
user.key.CopyFrom(key)
userid_property = user.property.add()
userid_property.name = 'userid'
userid_property.value.string_value = gitkit_user.user_id
display_name_property = user.property.add()
display_name_property.name = 'display_name'
display_name_property.value.string_value = gitkit_user.name
photo_url_property = user.property.add()
photo_url_property.name = 'photo_url'
if gitkit_user.photo_url:
photo_url_property.value.string_value = gitkit_user.photo_url
else:
photo_url_property.value.string_value = "/images/home/slider/slide1/cloud1.png"
email_property = user.property.add()
email_property.name = 'email'
email_property.value.string_value = gitkit_user.email
last_login_property = user.property.add()
last_login_property.name = 'last_login'
last_login_property.value.timestamp_microseconds_value = long(
time.time() * 1e6)
elif resp.found:
user = resp.found[0].entity
last_login_property = datastore.Property()
last_login_property.name = 'last_login'
for prop in user.property:
if prop.name == 'last_login':
prop.value.timestamp_microseconds_value = long(
time.time() * 1e6)
req.mutation.update.extend([user])
resp = datastore.commit(req)
return None
def main():
# Set project id from command line argument.
if len(sys.argv) < 2:
print 'Usage: adams.py <PROJECT_ID>'
sys.exit(1)
# Set the project from the command line parameters.
datastore.set_options(project_id=sys.argv[1])
try:
# Create a RPC request to begin a new transaction.
req = datastore.BeginTransactionRequest()
# Execute the RPC synchronously.
resp = datastore.begin_transaction(req)
# Get the transaction handle from the response.
tx = resp.transaction
# Create a RPC request to get entities by key.
req = datastore.LookupRequest()
# Create a new entity key.
key = datastore.Key()
# Set the entity key with only one `path` element: no parent.
elem = key.path.add()
elem.kind = 'Trivia'
elem.name = 'hgtg'
# Add one key to the lookup request.
req.keys.extend([key])
# Set the transaction, so we get a consistent snapshot of the
# entity at the time the transaction started.
req.read_options.transaction = tx
# Execute the RPC and get the response.
resp = datastore.lookup(req)
# Create a RPC request to commit the transaction.
req = datastore.CommitRequest()
# Set the transaction to commit.
req.transaction = tx
if resp.found:
# Get the entity from the response if found.
entity = resp.found[0].entity
else:
# If no entity was found, insert a new one in the commit request mutation.
entity = req.mutations.add().insert
# Copy the entity key.
entity.key.CopyFrom(key)
# Add two entity properties:
# - a utf-8 string: `question`
entity.properties['question'].string_value ='Meaning of life?'
# - a 64bit integer: `answer`
prop = entity.properties['answer'].integer_value = 42
# Execute the Commit RPC synchronously and ignore the response:
# Apply the insert mutation if the entity was not found and close
# the transaction.
datastore.commit(req)
# Get question property value.
question = entity.properties['question'].string_value
# Get answer property value.
answer = entity.properties['answer'].integer_value
# Print the question and read one line from stdin.
print question
result = raw_input('> ')
if result == str(answer):
print ('fascinating, extraordinary and, '
'when you think hard about it, completely obvious.')
else:
print "Don't Panic!"
except datastore.RPCError as e:
# RPCError is raised if any error happened during a RPC.
# It includes the `method` called, the canonical error code `code`,
# and the `message` of the failure.
logging.error('Error while doing datastore operation')
logging.error('RPCError: %(method)s %(reason)s',
{'method': e.method,
'code': e.code,
'reason': e.message})
return
def main():
datastore.set_options(dataset='glowing-thunder-842')
try:
# Create a RPC request to begin a new transaction.
req = datastore.BeginTransactionRequest()
# Execute the RPC synchronously.
resp = datastore.begin_transaction(req)
# Get the transaction handle from the response.
tx = resp.transaction
# Create a RPC request to get entities by key.
req = datastore.LookupRequest()
# Create a new entity key.
key = datastore.Key()
# Set the entity key with only one `path_element`: no parent.
path = key.path_element.add()
path.kind = 'kindlooptest'
path.name = randstr()
# Add one key to the lookup request.
req.key.extend([key])
# Set the transaction, so we get a consistent snapshot of the
# entity at the time the transaction started.
req.read_options.transaction = tx
# Execute the RPC and get the response.
resp = datastore.lookup(req)
# Create a RPC request to commit the transaction.
req = datastore.CommitRequest()
# Set the transaction to commit.
req.transaction = tx
if resp.found:
# Get the entity from the response if found.
entity = resp.found[0].entity
else:
# If no entity was found, insert a new one in the commit request mutation.
entity = req.mutation.insert.add()
# Copy the entity key.
entity.key.CopyFrom(key)
# Add two entity properties:
# - a utf-8 string: `question`
prop = entity.property.add()
prop.name = 'prop1test'
prop.value.string_value = randstr()
# - a 64bit integer: `answer`
prop = entity.property.add()
prop.name = 'prop2test'
prop.value.integer_value = 77
# Execute the Commit RPC synchronously and ignore the response:
# Apply the insert mutation if the entity was not found and close
# the transaction.
datastore.commit(req)
# Get question property value.
question = entity.property[0].value.string_value
# Get answer property value.
answer = entity.property[1].value.integer_value
# Print the question and read one line from stdin.
print answer
except datastore.RPCError as e:
# RPCError is raised if any error happened during a RPC.
# It includes the `method` called and the `reason` of the
# failure as well as the original `HTTPResponse` object.
logging.error('Error while doing datastore operation')
logging.error('RPCError: %(method)s %(reason)s',
{'method': e.method,
'reason': e.reason})
logging.error('HTTPError: %(status)s %(reason)s',
{'status': e.response.status,
'reason': e.response.reason})
return
