# Sessions and pauses **URL:** \ **Category:** Gatling (Open-Source)\ **Created:** [September 13, 2013, 1:00pm UTC](https://community.gatling.io/t/sessions-and-pauses/580 "2013-09-13T13:00:32Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Casey\_Sybrandy](https://avatars.discourse-cdn.com/v4/letter/c/839c29/32.png) [@Casey\_Sybrandy](https://community.gatling.io/u/Casey_Sybrandy)\ **Post date:** [September 13, 2013, 1:00pm UTC](https://community.gatling.io/t/sessions-and-pauses/580/1 "2013-09-13T13:00:32Z")
Hello, I’m trying to use Gatling 1.5.2 and one of the things I’d like to do is have how long I pause for a URL be dynamic. So, I have something like this: val scn = scenario(“Test Scenario”) .feed(userFeeder) .feed(csv(fname).random) .pauseCustom(() =\> java.lang.Long.parseLong("${pause}")) .exec( http(“Req 1”) .get("…") .check(status.is(200)) ) The “userFeeder” has two values: “user”, which is the username, and “pause”, which is how long I want to pause for each URL. However, I can’t seem to access the value that’s in “pause” when I try to execute the pause. In this case, and in a simpler one with the normal “pause” method, I get a parse exception. How can I do this? Is this even possible? The documentation seems to indicate that something like I did should be possible, but it’s not working. I’d also love to be able to do something similar for how often I repeat an action as well. Thanks. ---
**Author:** ![Excilys](https://avatars.discourse-cdn.com/v4/letter/e/8797f3/32.png) [@Excilys](https://community.gatling.io/u/Excilys)\ **Post date:** [September 16, 2013, 3:15pm UTC](https://community.gatling.io/t/sessions-and-pauses/580/2 "2013-09-16T15:15:48Z")
EL expressions can’t be parsed implicitly inside a function. And pauseCustom, as stated by its signature, can’t access the session, so cannot retrieve user data. You can convert your data from String to Long directly in your feeder: val feeder = csv(fname).map { record =\> record.map { case (“pause”, value) =\> “pause” → value.toLong case entry =\> entry } }.random This is easier with Gatling 2 as feeders have a transform method for this purpose. ---
**Author:** ![Casey\_Sybrandy](https://avatars.discourse-cdn.com/v4/letter/c/839c29/32.png) [@Casey\_Sybrandy](https://community.gatling.io/u/Casey_Sybrandy)\ **Post date:** [September 16, 2013, 4:38pm UTC](https://community.gatling.io/t/sessions-and-pauses/580/3 "2013-09-16T16:38:18Z")
Hello, Thanks, but that doesn’t seem to resolve the issue. I’m now getting a couple compilation issues. Here’s the current code: package test import com.excilys.ebi.gatling.core.Predef.\_ import com.excilys.ebi.gatling.http.Predef.\_ import com.excilys.ebi.gatling.jdbc.Predef.\_ import com.excilys.ebi.gatling.http.Headers.Names.\_ import akka.util.duration.\_ import bootstrap.\_ import [scala.io](http://scala.io).\_ class TestSim extends Simulation { val numUsers = Integer.getInteger(“users”, 10); val rampUp = java.lang.Long.getLong(“ramp”, 0L); val fname = System.getProperty(“ccodes”); // The next two lines copy data from a file and put it into an array. /_val cCodes = new collection.mutable.ArrayBuffer[String]_/ /_Source.fromFile(fname).getLines.foreach(code =\> cCodes += code)_/ val httpConf = httpConfig.baseURL(“[http://localhost:8080](http://localhost:8080)”) .acceptHeader(“application/json”) /_val userFeeder = Array(Map(“user” → “foo”, “pause” → 1),_/ /\* Map(“user” → “bar”, “pause” → 2),_/ /_ Map(“user” → “baz”, “pause” → 3)).random\*/ val userFeeder = csv(“user.dat”).map { record =\> record.map { case (“delay”, value) =\> “delay” → value.toLong case entry =\> entry } }.random val scn = scenario(“Test Scenario”) .feed(userFeeder) .feed(csv(fname).random) .pause(delay) .exec( http(“Req 1”) .get("…") .check([status.is](http://status.is)(200)) ) setUp(scn.users(numUsers).ramp(rampUp).protocolConfig(httpConf)) } The errors I’m getting are: [error] /home/dev/rmt/volt-getaor/src/main/scala/VoltGetAor.scala:31: value random is not a member of Iterator[scala.collection.immutable.Map[java.lang.String,Any]] [error] possible cause: maybe a semicolon is missing before `value random’? [error] }.random [error] ^ [error] /home/dev/rmt/volt-getaor/src/main/scala/VoltGetAor.scala:40: not found: value delay [error] .pause(delay) [error] ^ I’ll apologize now if it’s my own stupidity, but this was thrust upon me late last week and I never programmed in Scala before. Thanks. ---
**Author:** ![Excilys](https://avatars.discourse-cdn.com/v4/letter/e/8797f3/32.png) [@Excilys](https://community.gatling.io/u/Excilys)\ **Post date:** [September 16, 2013, 5:10pm UTC](https://community.gatling.io/t/sessions-and-pauses/580/4 "2013-09-16T17:10:13Z")
There’s a toArray missing before random. ---
**Author:** ![Casey\_Sybrandy](https://avatars.discourse-cdn.com/v4/letter/c/839c29/32.png) [@Casey\_Sybrandy](https://community.gatling.io/u/Casey_Sybrandy)\ **Post date:** [September 16, 2013, 5:31pm UTC](https://community.gatling.io/t/sessions-and-pauses/580/5 "2013-09-16T17:31:15Z")
Hopefully last question: how do I access the value then in the “.pause()” call? It looks like I can simply access the userFeeder array and access a value, but then I wouldn’t know if that value is the one being referenced somewhere else in the session. The examples that come with Gatling assume that all values coming out of a feeder are accessed in strings, which is not the case here. ---
**Author:** ![Excilys](https://avatars.discourse-cdn.com/v4/letter/e/8797f3/32.png) [@Excilys](https://community.gatling.io/u/Excilys)\ **Post date:** [September 16, 2013, 6:44pm UTC](https://community.gatling.io/t/sessions-and-pauses/580/6 "2013-09-16T18:44:43Z")
Ha, I’m very sorry: I realize that Gatling 1 doesn’t support dynamic pauses, only Gatling 2 does. If that’s a feature you really need, you’ll have to migrate.