Python GremlinUtils.init_statics示例

示例#1

 def __init__(self, neptune_endpoint, elasticache_endpoint):
     GremlinUtils.init_statics(globals())
     gremlin_utils = GremlinUtils(
         Endpoints(neptune_endpoint=neptune_endpoint))
     self.vertext_metrics = VertexMetrics(elasticache_endpoint)
     self.neptune_connection = gremlin_utils.remote_connection()
     self.g = gremlin_utils.traversal_source(
         connection=self.neptune_connection)

示例#2

文件： stream_handler.py 项目： vikasya/amazon-neptune-tools

    def handle_records(self, stream_log):

        params = json.loads(os.environ['AdditionalParams'])

        neptune_endpoint = params['neptune_cluster_endpoint']
        neptune_port = params['neptune_port']

        GremlinUtils.init_statics(globals())

        endpoints = Endpoints(neptune_endpoint=neptune_endpoint,
                              neptune_port=neptune_port)
        gremlin_utils = GremlinUtils(endpoints)

        conn = gremlin_utils.remote_connection()
        g = gremlin_utils.traversal_source(connection=conn)

        records = stream_log[RECORDS_STR]

        last_op_num = None
        last_commit_num = None
        count = 0

        try:
            for record in records:

                # Process record
                op = record[OPERATION_STR]
                data = record[DATA_STR]
                type = data['type']
                id = data['id']

                if op == ADD_OPERATION:
                    if type == 'vl':
                        logger.info(g.V(id).valueMap(True).toList())
                    if type == 'e':
                        logger.info(g.E(id).valueMap(True).toList())

                # Update local checkpoint info
                last_op_num = record[EVENT_ID_STR][OP_NUM_STR]
                last_commit_num = record[EVENT_ID_STR][COMMIT_NUM_STR]
                count += 1

        except Exception as e:
            logger.error('Error occurred - {}'.format(str(e)))
            raise e
        finally:
            try:
                conn.close()
                yield HandlerResponse(last_op_num, last_commit_num, count)
            except Exception as e:
                logger.error('Error occurred - {}'.format(str(e)))
                raise e
            finally:
                conn.close()

示例#3

文件： glue_gremlin_client.py 项目： tomasiturralde/amazon-neptune-tools

    def __init__(self, endpoints):

        self.gremlin_utils = GremlinUtils(endpoints)

        GremlinUtils.init_statics(globals())

示例#4

文件： batch_utils.py 项目： awslabs/amazon-neptune-tools

import traceback
from gremlin_python import statics
from gremlin_python.structure.graph import Graph
from gremlin_python.process.graph_traversal import __
from gremlin_python.process.strategies import *
from gremlin_python.driver.driver_remote_connection import DriverRemoteConnection
from gremlin_python.driver.protocol import GremlinServerError
from gremlin_python.process.traversal import *
from neptune_python_utils.gremlin_utils import GremlinUtils
from neptune_python_utils.endpoints import Endpoints
from neptune_python_utils.mappings import Mappings

logging.getLogger('backoff').addHandler(logging.StreamHandler())
logger = logging.getLogger()

GremlinUtils.init_statics(globals())


def get_cardinality(s):
    return Cardinality.single if s == 'single' else Cardinality.set_


def add_vertex(t, row, **kwargs):

    mappings = kwargs['mappings']
    label = kwargs['label'] if 'label' in kwargs else mappings.get_label(row)

    t = t.addV(label)

    for key, value in row.items():
        mapping = mappings.mapping_for(key)

示例#5

文件： neptune_workload.py 项目： xujunbj/amazon-neptune-samples

 def __init__(self):
     GremlinUtils.init_statics(globals())
     gremlin_utils = GremlinUtils()
     self.neptune_connection = gremlin_utils.remote_connection()
     self.g = gremlin_utils.traversal_source(
         connection=self.neptune_connection)