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Show explicit error message for SSSP run over a graph with no edge weight #2929

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Jun 27, 2023
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Show explicit error message for SSSP run over a graph with no edge weight #2929

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Explicit error message for SSSP run over a graph with no edge weight
doudoubobo Jun 26, 2023
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pass ci
doudoubobo Jun 26, 2023
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format code
doudoubobo Jun 26, 2023
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format code
doudoubobo Jun 26, 2023
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code format
doudoubobo Jun 26, 2023
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update error message
doudoubobo Jun 27, 2023
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13 changes: 13 additions & 0 deletions python/graphscope/analytical/app/sssp.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,8 @@
from graphscope.framework.app import AppAssets
from graphscope.framework.app import not_compatible_for
from graphscope.framework.app import project_to_simple
from graphscope.framework.graph import GraphDAGNode
from graphscope.proto import graph_def_pb2

__all__ = [
"sssp",
Expand Down Expand Up @@ -59,4 +61,15 @@ def sssp(graph, src=0, weight=None):
>>> c = graphscope.sssp(pg, src=6)
>>> sess.close()
"""
if not isinstance(graph, GraphDAGNode):
if graph.schema.edata_type == graph_def_pb2.NULLVALUE:
raise RuntimeError(
"The edge data is empty, and the edge data type should be integers or "
"floating point numbers to run SSSP. Suggest to use bfs() algorithm."
)
if graph.schema.edata_type == graph_def_pb2.STRING:
raise RuntimeError(
"The edge data type is string, and the edge data type should be "
"integers or floating point numbers to run SSSP."
)
return AppAssets(algo="sssp", context="vertex_data")(graph, src)