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https://issues.apache.org/jira/browse/TINKERPOP-3110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Saikiran Boga updated TINKERPOP-3110:
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Summary: Incorrect Bytecode when multiple options are used in traversal
(was: Incorect Bytecode when multiple options are used in traversal)
> Incorrect Bytecode when multiple options are used in traversal
> --------------------------------------------------------------
>
> Key: TINKERPOP-3110
> URL: https://issues.apache.org/jira/browse/TINKERPOP-3110
> Project: TinkerPop
> Issue Type: Bug
> Components: server
> Reporter: Saikiran Boga
> Priority: Major
>
> When multiple options like with("x",1).with("y",1) are used to build a
> traversal, the Bytecode building logic when constructing the traversal on the
> server keeps appending the Bytecode incrementally instead of replacing the
> previous Bytecode instruction.
> For a query like below:
> {code:java}
> g
> .with('evaluationTimeout',300000L)
> .with('a', 1)
> .with('b', 2)
> .with('c', 3)
> .V(){code}
> The Bytecode attached to traversal looks as:
> {code:java}
> g
> .withStrategies(new
> org.apache.tinkerpop.gremlin.process.traversal.strategy.decoration.OptionsStrategy(evaluationTimeout:
> 300000L))
> .withStrategies(new
> org.apache.tinkerpop.gremlin.process.traversal.strategy.decoration.OptionsStrategy(evaluationTimeout:
> 300000L, a: (int) 1))
> .withStrategies(new
> org.apache.tinkerpop.gremlin.process.traversal.strategy.decoration.OptionsStrategy(evaluationTimeout:
> 300000L, a: (int) 1, b: (int) 2))
> .withStrategies(new
> org.apache.tinkerpop.gremlin.process.traversal.strategy.decoration.OptionsStrategy(evaluationTimeout:
> 300000L, a: (int) 1, b: (int) 2, c: (int) 3))
> .V() {code}
> Instead it should be just single instruction for OptionsStrategy as:
>
> {code:java}
> g
> .withStrategies(new
> org.apache.tinkerpop.gremlin.process.traversal.strategy.decoration.OptionsStrategy(evaluationTimeout:
> 300000L, a: (int) 1, b: (int) 2, c: (int) 3))
> .V() {code}
>
> We always build a new OptionsStrategy here and carry over the previous
> options
> [https://github.com/apache/tinkerpop/blob/master/gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/TraversalSource.java#L116-L122]
> as OptionsStrategy itself is immutable and we cannot add new options after
> creating it.
>
> We build the traversal strategies set and bytecode here:
> [https://github.com/apache/tinkerpop/blob/master/gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/TraversalSource.java#L132-L133]
>
> The traversal strategies set itself is built correctly and we remove
> duplicates
> [https://github.com/apache/tinkerpop/blob/master/gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/util/DefaultTraversalStrategies.java#L42-L50]
>
> But Bytecode just appends the new strategy as instruction
> [https://github.com/apache/tinkerpop/blob/master/gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/Bytecode.java#L82-L83]
>
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