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https://issues.apache.org/jira/browse/TINKERPOP-1716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16080475#comment-16080475
]
Simone Cattani commented on TINKERPOP-1716:
-------------------------------------------
The following query works well when executed within the console
{code}
:> g.withStrategies(SubgraphStrategy.build().vertices(__.has("age",
lte(30))).create()).V().valueMap()
{code}
The following is my code, using TinkerPop 3.2.5
{code}
Cluster cluster = Cluster.open(configuration);
Graph graph = EmptyGraph.instance();
System.out.println(graph.traversal().withRemote(DriverRemoteConnection.using(cluster,
"g")).V().valueMap().toList());
System.out.println(graph.traversal().withRemote(DriverRemoteConnection.using(cluster,
"g")).V().valueMap().explain());
{code}
obtaining as result
{code}
[{name=[marko], age=[29]}, {name=[vadas], age=[27]}, {name=[lop], lang=[java]},
{name=[josh], age=[32]}, {name=[ripple], lang=[java]}, {name=[peter], age=[35]}]
Traversal Explanation
=================================================================================================
Original Traversal [GraphStep(vertex,[]), PropertyMapStep(value)]
RemoteStrategy [D]
[RemoteStep(DriverServerConnection-gremlin-server/127.0.0.1:8182 [graph=g])]
Final Traversal
[RemoteStep(DriverServerConnection-gremlin-server/127.0.0.1:8182 [graph=g])]
{code}
when strategy is used
{code}
Cluster cluster = Cluster.open(configuration);
Graph graph = EmptyGraph.instance();
System.out.println(graph.traversal().withRemote(DriverRemoteConnection.using(cluster,
"g"))
.withStrategies(SubgraphStrategy.build().vertices(__.has("age",
lte(30))).create())
.V().valueMap().toList());
System.out.println(graph.traversal().withRemote(DriverRemoteConnection.using(cluster,
"g"))
.withStrategies(SubgraphStrategy.build().vertices(__.has("age",
lte(30))).create())
.V().valueMap().explain());
{code}
the same result is obtained
{code}
[{name=[marko], age=[29]}, {name=[vadas], age=[27]}, {name=[lop], lang=[java]},
{name=[josh], age=[32]}, {name=[ripple], lang=[java]}, {name=[peter], age=[35]}]
Traversal Explanation
====================================================================================================================
Original Traversal [GraphStep(vertex,[]), PropertyMapStep(value)]
SubgraphStrategy [D] [GraphStep(vertex,[]),
TraversalFilterStep([HasStep([age.lte(30)])]), PropertyMapStep(value)]
RemoteStrategy [D]
[RemoteStep(DriverServerConnection-gremlin-server/127.0.0.1:8182 [graph=g])]
Final Traversal
[RemoteStep(DriverServerConnection-gremlin-server/127.0.0.1:8182 [graph=g])]
{code}
> Traversal strategies are not applied with remote in Gremlin Console
> -------------------------------------------------------------------
>
> Key: TINKERPOP-1716
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1716
> Project: TinkerPop
> Issue Type: Bug
> Components: server
> Affects Versions: 3.2.3, 3.2.5
> Reporter: Jason Plurad
>
> Originally from a [StackOverflow
> post|https://stackoverflow.com/questions/44907843/can-strategies-be-used-with-remote-traversal-in-gremlin]:
> This subgraph strategy works (only the `battled` edges are returned) with a
> remote from Gremlin-Python:
> {noformat}
> 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
> statics.load_statics(globals())
> graph = Graph()
> g =
> graph.traversal().withRemote(DriverRemoteConnection('ws://localhost:8182/gremlin','g')).withStrategies(SubgraphStrategy(edges=__.hasLabel('battled')))
> g.E().label().groupCount().toList()
> {noformat}
> But the subgraph strategy does not work (all edges are returned) with a
> remote from the Gremlin Console:
> {noformat}
> graph = EmptyGraph.instance()
> g =
> graph.traversal().withRemote('conf/remote-graph.properties').withStrategies(SubgraphStrategy.build().edges(__.hasLabel("battled")).create())
> g.E().label().groupCount().toList()
> {noformat}
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