def exec_query_set(self, op):
tx_url = "{0}/{1}".format(self.tx_base_url, op.tx_id)
statement_param_pair_set = db_util.db_query_set_to_REST_form(
op.query_set)
try:
post_ret = db_util.post_neo4j(tx_url, statement_param_pair_set)
op.result_set = post_ret['results']
op.error_set = post_ret['errors']
if 0 != len(op.error_set):
raise Neo4JException(op.error_set)
self.log_committed_queries(statement_param_pair_set)
except Neo4JException as e:
# NOTE: python 2.7 loses the stack when reraising the exception.
# python 3 does the right thing, but gevent doesn't support it yet.
log.error('REST statement: %r' % statement_param_pair_set)
log.exception(e)
raise e
except Exception as e:
log.error('REST statement: %r' % statement_param_pair_set)
log.exception(e)
raise Exception(
'failed exec op statements: err: {0}, url: {1}'.format(
e.message, tx_url))
def begin_tx(self, op):
tx_open_url = self.tx_base_url
try:
#
# [!] neo4j seems picky about receiving an additional empty statement list
#
data = db_util.db_query_set_to_REST_form([]) # open TX with empty query_set
ret = db_util.post_neo4j(tx_open_url, data)
tx_commit_url = ret['commit']
op.parse_tx_id(tx_commit_url)
log.debug('tx-open: id: {0}, commit-url: {1}'.format(op.tx_id, tx_commit_url))
except Exception as e:
raise Exception('failed to open transaction: ' + e.message)
def begin_tx(self, op):
tx_open_url = self.tx_base_url
try:
#
# [!] neo4j seems picky about receiving an additional empty statement list
#
data = db_util.db_query_set_to_REST_form(
[]) # open TX with empty query_set
ret = db_util.post_neo4j(tx_open_url, data)
tx_commit_url = ret['commit']
op.parse_tx_id(tx_commit_url)
log.debug('tx-open: id: {0}, commit-url: {1}'.format(
op.tx_id, tx_commit_url))
except Exception as e:
raise Exception('failed to open transaction: ' + e.message)
def exec_query_set(self, op):
tx_url = "{0}/{1}".format(self.tx_base_url, op.tx_id)
statement_param_pair_set = db_util.db_query_set_to_REST_form(op.query_set)
try:
post_ret = db_util.post_neo4j(tx_url, statement_param_pair_set)
op.result_set = post_ret['results']
op.error_set = post_ret['errors']
if 0 != len(op.error_set):
raise Neo4JException(op.error_set)
self.log_committed_queries(statement_param_pair_set)
except Neo4JException as e:
# NOTE: python 2.7 loses the stack when reraising the exception.
# python 3 does the right thing, but gevent doesn't support it yet.
log.error('REST statement: %r' % statement_param_pair_set)
log.exception(e)
raise e
except Exception as e:
log.error('REST statement: %r' % statement_param_pair_set)
log.exception(e)
raise Exception('failed exec op statements: err: {0}, url: {1}'.format(e.message, tx_url))