I'm using akka-stream_2.11-2.5.4.jar, and I'm getting an exception with the
following stack trace when building my graph:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: -1
at
akka.stream.impl.AtomicTraversalBuilder.assign(TraversalBuilder.scala:550)
at
akka.stream.impl.CompositeTraversalBuilder.assign(TraversalBuilder.scala:1189)
at
akka.stream.impl.CompositeTraversalBuilder.wire(TraversalBuilder.scala:1299)
at akka.stream.scaladsl.GraphDSL$Builder.addEdge(Graph.scala:1177)
at
akka.stream.scaladsl.GraphDSL$Implicits$CombinerBase$class.$tilde$greater(Graph.scala:1323)
at
akka.stream.scaladsl.GraphDSL$Implicits$PortOpsImpl.$tilde$greater(Graph.scala:1413)
at
akka.stream.javadsl.GraphDSL$Builder$ForwardOps.toInlet(Graph.scala:443)
at
com.simba.cloud.core.data.experimental.akka.Test$TopLevelBuilder.apply(Test.java:164)
at
com.simba.cloud.core.data.experimental.akka.Test$TopLevelBuilder.apply(Test.java:1)
at
akka.stream.javadsl.GraphCreate$$anonfun$create$4$$anonfun$apply$2.apply(GraphCreate.scala:34)
at
akka.stream.javadsl.GraphCreate$$anonfun$create$4$$anonfun$apply$2.apply(GraphCreate.scala:34)
at akka.stream.scaladsl.GraphApply$class.create(GraphApply.scala:43)
at akka.stream.scaladsl.GraphDSL$.create(Graph.scala:1164)
at akka.stream.javadsl.GraphCreate.create(GraphCreate.scala:34)
at akka.stream.javadsl.GraphDSL.create(Graph.scala)
at
com.simba.cloud.core.data.experimental.akka.Test.fetchRows(Test.java:234)
at com.simba.cloud.core.data.experimental.akka.Test.main(Test.java:639)
I don't have eclipse set up to debug scala, so I can't really make up what
the proximate reason for failure is.
The line causing the failure is the line
in_builder.from(requestSourceStage.m_requestsOut).toInlet(
requestContextBuilderStage.in0());
from
@Override
public ClosedShape apply(
Builder<Pair<Sink<ResponseEvent<NodeT>, NotUsed>,
SinkQueueWithCancel<Iterator<ICLRow>>>> in_builder,
FanOutShape2<ResponseContext<NodeT>, ResponseEvent<NodeT>, Pair<
ResponseStatus, RequestContext<NodeT>>> in_errorChecker,
SinkShape<Iterator<ICLRow>> in_sink) throws Exception
{
final SourceShape<Iterator<Map<String, String>>>
preReqCallVariables = in_builder.add(getPreReqCallVariableSource());
final RequestSourceStageShape<NodeT> requestSourceStage =
in_builder.add(new RequestSourceStage<NodeT>(getRequestSource()));
final FanInShape2<Pair<CLDataRequest, ICLResponseListener<NodeT
>>, ICLResponseListener<NodeT>, RequestContext<NodeT>>
requestContextBuilderStage =
in_builder.add(ZipWith.create(new RequestContextFactory
<>()));
final FanInShape2<RequestContext<NodeT>, Pair<ResponseStatus,
RequestContext<NodeT>>, RequestContext<NodeT>> retryCycleMergeStage =
in_builder.add(new RetryCycleMergeStage<NodeT>());
final FlowShape<RequestContext<NodeT>, RequestContext<NodeT>>
rateLimiterStage = in_builder.add(getRateLimiter());
final FlowShape<RequestContext<NodeT>, RequestContext<NodeT>>
authenticatorStage = in_builder.add(getAuthenticationFlow());
final FlowShape<RequestContext<NodeT>, ResponseContext<NodeT>>
responseStage =
in_builder.add(Flow.<RequestContext<NodeT>>create()
.map(reqCtxt -> Pair.create(createHttpRequest(reqCtxt.
Request), reqCtxt))
.via(getRequestToResponseFlow())
.map(pair -> new ResponseContext<NodeT>(pair.second(),
pair.first().get(), getErrorHandler().create())));
final UniformFanOutShape<ResponseEvent<NodeT>, ResponseEvent<
NodeT>> routeResponseEventsStage = in_builder.add(Partition.create(2, event
-> event.getTarget() == ResponseEvent.Target.DATA_UNMARSHALLER ? 0 : 1));
final FanOutShape2<ResponseEvent<NodeT>, Iterator<ICLRow>,
ICLResponseListener<NodeT>> unmarshallStage = in_builder.add(new
UnmarshallerStage<NodeT>(getUnmarshallerFactory()));
in_builder.from(preReqCallVariables).toInlet(requestSourceStage.
m_preReqCallVariablesIn);
in_builder.from(requestSourceStage.m_requestsOut).toInlet(
requestContextBuilderStage.in0());
in_builder.from(requestContextBuilderStage.out()).toInlet(
retryCycleMergeStage.in0());
in_builder.from(retryCycleMergeStage.out()).via(rateLimiterStage
).via(authenticatorStage).via(responseStage).toInlet(in_errorChecker.in());
in_builder.from(in_errorChecker.out1()).toInlet(
retryCycleMergeStage.in1());
in_builder.from(in_errorChecker.out0()).toInlet(
routeResponseEventsStage.in());
in_builder.from(routeResponseEventsStage.out(0)).toInlet(
unmarshallStage.in());
in_builder.from(routeResponseEventsStage.out(1)).toInlet(
requestSourceStage.m_responseEventsIn);
in_builder.from(unmarshallStage.out1()).toInlet(
requestContextBuilderStage.in1());
in_builder.from(unmarshallStage.out0()).to(in_sink);
return ClosedShape.getInstance();
}
in the
com.simba.cloud.core.data.experimental.akka.Test$TopLevelBuilder
class
How do I diagnose the cause of this?
Thanks,
Matthew w.
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