Java - Get value out of the feeder.

[Bharath Marrivada]

Hello Stephan,

I have implemented the Gatling code in a function and called it from the main class. I need to get the value out of the feeder and send it to the function. Following is the sample code. Request your help on the same.

Iterator<Map<String, Object>> feeder1 =
Stream.generate((Supplier<Map<String, Object>>) () -> {
int num = (int)Math.floor(Math.random()*(100-10+1)+10);
return Collections.singletonMap("number", num);
}
).iterator();

private ScenarioBuilder scn = scenario("homePage")
.feed(feeder1)

.exec(http("Page").get("/computers?p=#{number}"));
.exec(gotoPage(2))  //Want to replace 2 with  #{number}

Regards,

Bharath.

[Stéphane LANDELLE]

Then your goto method can't take an Int. Make it take a String or a Function.

Moreover, you should probably switch to Java instead of Scala.

--

Stéphane Landelle Chief Technical Officer

slan...@gatling.io gatling.io

   

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[Bharath Marrivada]

Thank you, Stephan, I have fixed it. I am using Java only.

I have observed that you are suggesting using Java than Scala. May I know the reason?

In one of the youtube videos, you told that Java compilation is faster than Scala. Any differences between Java & Scala in terms of code execution?

 Following is the working code. 

Iterator<Map<String, Object>> feeder1 =
Stream.generate((Supplier<Map<String, Object>>) () -> {
int num = (int)Math.floor(Math.random()*(100-10+1)+10);

return Collections.singletonMap("number", String.valueOf(num));

}
).iterator();

private ScenarioBuilder scn = scenario("homePage")

.feed(feeder)
//.exec(homePage())
.exec(gotoPage("#{number}"))

.exec(http("Page").get("/computers?p=#{number}"));

Regards,

Bharath.

[Stéphane LANDELLE]

> I have observed that you are suggesting using Java than Scala. May I know the reason?

The main reason is adoption, eg from the rest of your organization.

Some people will be reluctant to even try learning the basics of a new language.

Currently, the Java API is built on top of the Scala one, so there's a small overhead, but it will go unnoticed to most users.

--

Stéphane Landelle Chief Technical Officer

slan...@gatling.io gatling.io

   

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