Passing variable arguments to a java function from javascript using GraalVM



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4















I am trying to call a function available in Corda RPC called startTrackedFlowDynamic which accepts 2 arguments:
startTrackedFlowDynamic(logicType: Class<out FlowLogic<T>>, vararg args: Any?) which is packaged in a JAR



The call to this function is made from a Javascript context (using GraalVM to achieve that), I want to call this function and pass the arguments to it obtained from a request object (say, coming from a REST API)



Example:
if the request contains an array [::InitiatorA, iouValue],
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorA, iouValue)



if the request contains an array [::InitiatorB, abc, xyz]
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorB, abc, xyz)



if the request contains an array [::InitiatorC]
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorC)



TLDR: I would like to make it as a generic API instead of re-writing for every different Flow call.
I want to be able to pass dynamic number of arguments coming from the request object to this function instead of hard coding a fixed number of arguments and having to update it when the number of argument changes



An example of the behaviour I want to replicate:






var func = function () 
console.log(arguments.length);
for (var i = 0; i < arguments.length; i++)
console.log(arguments[i]);

;

func.apply(null, ['::InitiatorA', 'abc', 'xyz'])





Any suggestions?










share|improve this question
























  • I'd suggest using in example console.log instead of alert - it's less annoying

    – barbsan
    Nov 16 '18 at 12:44

















4















I am trying to call a function available in Corda RPC called startTrackedFlowDynamic which accepts 2 arguments:
startTrackedFlowDynamic(logicType: Class<out FlowLogic<T>>, vararg args: Any?) which is packaged in a JAR



The call to this function is made from a Javascript context (using GraalVM to achieve that), I want to call this function and pass the arguments to it obtained from a request object (say, coming from a REST API)



Example:
if the request contains an array [::InitiatorA, iouValue],
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorA, iouValue)



if the request contains an array [::InitiatorB, abc, xyz]
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorB, abc, xyz)



if the request contains an array [::InitiatorC]
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorC)



TLDR: I would like to make it as a generic API instead of re-writing for every different Flow call.
I want to be able to pass dynamic number of arguments coming from the request object to this function instead of hard coding a fixed number of arguments and having to update it when the number of argument changes



An example of the behaviour I want to replicate:






var func = function () 
console.log(arguments.length);
for (var i = 0; i < arguments.length; i++)
console.log(arguments[i]);

;

func.apply(null, ['::InitiatorA', 'abc', 'xyz'])





Any suggestions?










share|improve this question
























  • I'd suggest using in example console.log instead of alert - it's less annoying

    – barbsan
    Nov 16 '18 at 12:44













4












4








4


1






I am trying to call a function available in Corda RPC called startTrackedFlowDynamic which accepts 2 arguments:
startTrackedFlowDynamic(logicType: Class<out FlowLogic<T>>, vararg args: Any?) which is packaged in a JAR



The call to this function is made from a Javascript context (using GraalVM to achieve that), I want to call this function and pass the arguments to it obtained from a request object (say, coming from a REST API)



Example:
if the request contains an array [::InitiatorA, iouValue],
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorA, iouValue)



if the request contains an array [::InitiatorB, abc, xyz]
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorB, abc, xyz)



if the request contains an array [::InitiatorC]
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorC)



TLDR: I would like to make it as a generic API instead of re-writing for every different Flow call.
I want to be able to pass dynamic number of arguments coming from the request object to this function instead of hard coding a fixed number of arguments and having to update it when the number of argument changes



An example of the behaviour I want to replicate:






var func = function () 
console.log(arguments.length);
for (var i = 0; i < arguments.length; i++)
console.log(arguments[i]);

;

func.apply(null, ['::InitiatorA', 'abc', 'xyz'])





Any suggestions?










share|improve this question
















I am trying to call a function available in Corda RPC called startTrackedFlowDynamic which accepts 2 arguments:
startTrackedFlowDynamic(logicType: Class<out FlowLogic<T>>, vararg args: Any?) which is packaged in a JAR



The call to this function is made from a Javascript context (using GraalVM to achieve that), I want to call this function and pass the arguments to it obtained from a request object (say, coming from a REST API)



Example:
if the request contains an array [::InitiatorA, iouValue],
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorA, iouValue)



if the request contains an array [::InitiatorB, abc, xyz]
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorB, abc, xyz)



if the request contains an array [::InitiatorC]
I would want to call startTrackedFlowDynamic like:
startTrackedFlowDynamic(::InitiatorC)



TLDR: I would like to make it as a generic API instead of re-writing for every different Flow call.
I want to be able to pass dynamic number of arguments coming from the request object to this function instead of hard coding a fixed number of arguments and having to update it when the number of argument changes



An example of the behaviour I want to replicate:






var func = function () 
console.log(arguments.length);
for (var i = 0; i < arguments.length; i++)
console.log(arguments[i]);

;

func.apply(null, ['::InitiatorA', 'abc', 'xyz'])





Any suggestions?






var func = function () 
console.log(arguments.length);
for (var i = 0; i < arguments.length; i++)
console.log(arguments[i]);

;

func.apply(null, ['::InitiatorA', 'abc', 'xyz'])





var func = function () 
console.log(arguments.length);
for (var i = 0; i < arguments.length; i++)
console.log(arguments[i]);

;

func.apply(null, ['::InitiatorA', 'abc', 'xyz'])






javascript java node.js corda graalvm






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edited Nov 16 '18 at 15:28









Clyde D'Cruz

1,358930




1,358930










asked Nov 16 '18 at 12:16









PoojaKamatPoojaKamat

315




315












  • I'd suggest using in example console.log instead of alert - it's less annoying

    – barbsan
    Nov 16 '18 at 12:44

















  • I'd suggest using in example console.log instead of alert - it's less annoying

    – barbsan
    Nov 16 '18 at 12:44
















I'd suggest using in example console.log instead of alert - it's less annoying

– barbsan
Nov 16 '18 at 12:44





I'd suggest using in example console.log instead of alert - it's less annoying

– barbsan
Nov 16 '18 at 12:44












1 Answer
1






active

oldest

votes


















1














It seems to work with the following JavaScript syntax



var argsArray = ['::InitiatorA', 'abc', 'xyz']
startTrackedFlowDynamic(...argsArray)





share|improve this answer























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    1 Answer
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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    1














    It seems to work with the following JavaScript syntax



    var argsArray = ['::InitiatorA', 'abc', 'xyz']
    startTrackedFlowDynamic(...argsArray)





    share|improve this answer



























      1














      It seems to work with the following JavaScript syntax



      var argsArray = ['::InitiatorA', 'abc', 'xyz']
      startTrackedFlowDynamic(...argsArray)





      share|improve this answer

























        1












        1








        1







        It seems to work with the following JavaScript syntax



        var argsArray = ['::InitiatorA', 'abc', 'xyz']
        startTrackedFlowDynamic(...argsArray)





        share|improve this answer













        It seems to work with the following JavaScript syntax



        var argsArray = ['::InitiatorA', 'abc', 'xyz']
        startTrackedFlowDynamic(...argsArray)






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 21 '18 at 5:32









        PoojaKamatPoojaKamat

        315




        315





























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