# -*- coding: utf-8 -*-
# Copyright 2020 Alibaba Group Holding Limited. All Rights Reserved.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from graphscope.framework.app import AppAssets
from graphscope.framework.app import not_compatible_for
__all__ = [
def sssp(graph, src=0):
"""Compute single source shortest path on the `graph`.
graph (:class:`Graph`): A projected simple graph.
src (int, optional): The source vertex. Defaults to 0.
:class:`VertexDataContext`: A context with each vertex assigned with the shortest distance from the src.
.. code:: python
import graphscope as gs
s = gs.session()
g = s.load_from('The parameters for loading a graph...')
pg = g.project_to_simple(v_label='vlabel', e_label='elabel', v_prop=None, e_prop='distance')
r = gs.sssp(pg, src=0)
return AppAssets(algo="sssp")(graph, src)
@not_compatible_for("dynamic_property", "arrow_projected", "dynamic_projected")
def property_sssp(graph, src=0):
"""Compute single source shortest path on graph G.
graph (Graph): a property graph.
src (int, optional): the source. Defaults to 0.
A context with each vertex assigned with the shortest distance from the src.
return AppAssets(algo="property_sssp")(graph, src)