For the following Gatling simulation
class DeviceSimulation extends Simulation {
var devices: List[Device] = List[Device]()
before {
// Preparing data.
devices = DataFetch.getDevices()
}
// Feed device
val devicesFeederCont: Iterator[Map[String, Device]] = Iterator.continually(devices.map(d => {
Map("device" -> d)
})).flatten
val devicesFeederToKarate: ScenarioBuilder = scenario("feederDeviceToKarate").exec(karateSet("device", session => session("device").as[Device]))
val Devices: ScenarioBuilder = scenario("Device")
.feed(devicesFeederCont)
.exec(devicesFeederToKarate)
.exec(karateFeature("classpath:features/device/Devices.feature"))
setUp(
Devices.inject(rampUsers(5).during(5 seconds))
).protocols()
}
I would like to be able to inject Device object inside my feature:
Feature: Device actions
Background:
* url 'https://server-host'
* print 'Device obj: ', device
Scenario: Device actions
Given path '/api/device/name/', device.name
When method GET
Then status 200
But, although for the Background print I get: c.intuit.karate - [print] Device obj: Device(1234,989898989), for the GET request I have:
GET /api/device/name/com.intuit.karate.graal.JsExecutable#333d7..
I mention that Device is just a case class with two fields:
case class Device(id: Int, name: String).
Is there a way to properly use objects passed from feeder inside Karate features?
Right now we've tested only with primitive values passed into the Gatling session. It may work if you convert the data into a java.util.Map. So maybe your best bet is to write some toMap() function on your data-object. Or if you manage to emit a JSON string, there is a karate.fromString() helper that can be useful.
So please read the docs here and figure out what works: https://github.com/karatelabs/karate/tree/master/karate-gatling#gatling-session
You are most welcome to contribute code to improve the state of things.
Related
I am a new in Scala and got some problems with casting from String to Long. I try to get Gatling session value as Long in request. Before in exec() part, I try to set the userId value
def setUserId(): ChainBuilder = {
exec(session => session
.set("userId", Random.nextLong())
)
}
Next, in request creator I want to use it like that because I need a new userId every call:
object UserRequestCreator {
def sampleUserRequest(currency: String): Request = {
Data data = new Data()
data.setUserId("${userId}".toLong)
data.setCurrency(currency)
}
}
Test scenario:
exec(setUserId())
.exec(http("postUser")
.post(endpointUser).asXml
.headers(headers)
.body(StringBody(toXmlString(sampleUserRequest("EUR"), classOf[Request])))
.check(status.is(200))
but receive error:
java.lang.NumberFormatException: For input string: "${userId}"
How to fix that in Scala?
I also try Long.valueOf, JLong.parseLong("${userId"}, 16), Try(BigDecimal(...)) and more but nothing can help. I think the problem is with $ symbol, but I don't see any different way to get this value from the session. Maybe it is possible to store Long in the Gating session?
From the documentation and based on your current code, one way to do it is like that:
// with a function payload
http("name").post("/")
.body(StringBody(session => s"""{ "foo": "${session("dynamicValueKey").as[String]}" }"""))
Thus, in your case:
StringBody(session => toXmlString(sampleUserRequest(session)("EUR"), classOf[Request])
def sampleUserRequest(session: Session)(currency: String): Request = {
//...
data.setUserId(session("userId").as[Long])
}
is there a way to return a value inside Action controller.
I have a method in my User model which returns the number of friends of a given user.
def nrOfFriends(current_user: Long): Int = {
DB.withConnection{ implicit connection =>
var nr: Int = SQL("select count(*) from friend where user_id_1=" + current_user + " or user_id_2=" + current_user).as(scalar[Int].single)
nr
}
}
In my controller, I just want to return the value from the model
def freunde() = IsAuthenticated { username => _ =>
User.findByUsername(username).map { user =>
var nr: Int = Friend.nrOfFriends(user.id.get)
Ok(""+nr)
}.getOrElse(Forbidden)
}
But in the way that is written, it will print "empty string " concatenated with the number
If I replace Ok(""+nr) with Ok(nr) I receive the following error:
"Cannot write an instance of Int to HTTP response. Try to define a Writeable[Int]"
I need for my action to return a value so that I can pass the value from the action to header.views.html inside the navbar something like that
#Freund.freunde Friends
if you want your response to just be the value of nr you can simply call nr.toString:
def freunde() = IsAuthenticated { username => _ =>
User.findByUsername(username).map { user =>
var nr: Int = Friend.nrOfFriends(user.id.get)
Ok(nr.toString)
}.getOrElse(Forbidden)
}
The error you're getting makes reference to the fact that Int doesn't have an implicit Writeable[Int] in scope. So play doesn't know how display an Int in an http response.
You can add make Int writeable by putting this in scope:
implicit val intWriteable = play.api.http.Writeable[Int](_.toString.getBytes, None)
Then you would be able to just say:
Ok(nr)
without error.
However, it sounds like you just want the result of nrOfFriends inside an unrelated template. If that's the case, you should be using an Action at all. Instead just call your model function inside the template where you need the data.
#User.nrOfFriends(user.id) Friends
Of course you would need to pass in the user to the template as well.
You didn't post a full sample of all the code involved in what you are trying to accomplish so I think this is the best I can do for now. Perhaps try posting the base template that your <a> is in.
An important point is that Actions are for production an HTTP response, and not just plain data internally to the application.
An action of a controller handles a request and generates a result to be sent to the client. In other words, an action returns a play.api.mvc.Result value, representing the HTTP response to send to the web client. In your example Ok constructs a 200 OK response. The body of the response must be one of the predefined types, including text/plain, json, and html. The number of a friends is an integer and is NOT an acceptable type of the body. Therefore, a simple way to address this problem is to convert it into a text/plain using .toString().
On the other hand, you can define a writer for Int that lets Play know how to convert an integer into a json format.
For more details, please take a look at this https://www.playframework.com/documentation/2.2.x/ScalaActions.
I am uploading a videos and images using web-service and save the images in our application. When i save the files, the files are save on root of application folder. I want to access those images and videos with localhost url, like: I upload the file and save under app-root/upload/image.jpg. In my route mapping file, i declare routing as below:
GET /uploads/ staticDir:/upload
As define in Play Documentation. But still getting an compile time error: Controller method call expected. I want to access image like this http://localhost:9999/uploads/image.jpg
Well... One way of doing this is by adding following routes,
GET /uploads/*file controllers.Assets.at(path="/uploads", file)
But, it will interfere with the reverse-routing of already existing route which is,
GET /assets/*file controllers.Assets.at(path="/public", file)
And then you will have to use your these two assets routes as - #route.Assets.at("public", filename) and #route.Assets.at("uploads", filename) which means all your templates which use you public assets route as - #route.Assets.at(filename) will have to be changed. Which can be a hassle in an existing big project.
You can avoid this by using following method,
Create another controller as,
package controllers
object FileServer extends Controller {
def serveUploadedFiles1 = controllers.Assets.at( dicrectoryPath, file, false )
// Or... following is same as above
def serveUploadedFiles2( file: String ) = Action.async {
implicit request => {
val dicrectoryPath = "/uploads"
controllers.Assets.at( dicrectoryPath, file, false ).apply( request )
}
}
}
The above should have worked... but seems like play does a lot of meta-data checking on the requested "Assets" which somehow results in empty results for all /uploads/filename requests. I tried to look into the play-source code to check, but it seems like it may take sometime to figure it out.
So I think we can make do with following simpler method ( It can be refined further in so many ways.).
object FileServer extends Controller {
import play.api.http.ContentTypes
import play.api.libs.MimeTypes
import play.api.libs.iteratee.Enumerator
import play.api.libs.concurrent.Execution.Implicits.defaultContext
def serveUploadedFiles(file: String) = Action { implicit request =>
val fileResUri = "uploads/"+file
val mimeType: String = MimeTypes.forFileName( fileResUri ).fold(ContentTypes.BINARY)(addCharsetIfNeeded)
val serveFile = new java.io.File(fileResUri)
if( serveFile.exists() ){
val fileContent: Enumerator[Array[Byte]] = Enumerator.fromFile( serveFile )
//Ok.sendFile(serveFile).as( mimeType )
val response = Result(
ResponseHeader(
OK,
Map(
CONTENT_LENGTH -> serveFile.length.toString,
CONTENT_TYPE -> mimeType
)
),
fileContent
)
response
}
else {
NotFound
}
}
def addCharsetIfNeeded(mimeType: String): String =
if (MimeTypes.isText(mimeType)) s"$mimeType; charset=$defaultCharSet" else mimeType
lazy val defaultCharSet = config(_.getString("default.charset")).getOrElse("utf-8")
def config[T](lookup: Configuration => Option[T]): Option[T] = for {
app <- Play.maybeApplication
value <- lookup(app.configuration)
} yield value
}
But this method will cause some troubles in case of packaged-build deployments.
Which means, using the Play's Asset thing would be wiser choice. So looking again, the controllers.Assets.at which is actually controllers.Assets.assetAt uses this method at one place,
def resource(name: String): Option[URL] = for {
app <- Play.maybeApplication
resource <- app.resource(name)
} yield resource
Which means, it tries to locate the resource in the directories which are part of application's classpath and our uploads folder sure is not one of them. So... we can make play's Assets.at thingy work by adding uploads to classpath.
But... thinking again... If I recall all folders in the classpath are supposed to be packaged in the package to be deployed in-case of packaged-build deployments. And uploaded things will be created by the users, which means they should not be a part of package. Which again means... we should not be trying to access our uploaded things using Play's Assets.at thingy.
So... I think we are better off using our own simpler rudimentary implementation of serveUploadedFiles.
Now add a route in route file as,
GET /uploads/*file controllers.FileServer.serveUploadedFiles( file:String )
Also... Keep in mind that you should not be thinking of using play to serve your uploaded assets. Please use nginx or something similar.
I'm stuck at a very annoying problem.
I'm working with javaPNS and following one of the many guides on internet.
Here: https://code.google.com/p/javapns/wiki/PushNotificationAdvanced
/* Push your custom payload */
List<PushedNotification> notifications = Push.payload(payload, keystore, password, production, devices);
where you see this, above. It says that Push.payload() returns a List with PushedNotificaion.
Well, it doesn't in my code.
object Push {
def devPush(pushAlertMessage: String, badgeNumber: Int, devices: Seq[String]): List[PushedNotification] = {
//Retrieve the .p12 certification file
val keystoreFile = getClass.getResourceAsStream("keystorefile.p12")
//Create payload
val payload = PushNotificationPayload.complex()
payload.addBadge(badgeNumber)
payload.addAlert(pushAlertMessage)
payload.addSound("default")
//
val notifications:List[PushedNotification] = javapns.Push.payload(payload, keystoreFile, keystorePassword, false, devices)
for(notification <- javapns.Push.alert(pushAlertMessage, keystoreFile, keystorePassword, false, devices).getFailedNotifications){
/* Add code here to remove invalid tokens from database */
}
notifications
}
}
When I try to put a list in my val notifications with Push.payload it says:
"Express of type PushedNotifications doesn't conform to expected type List[PushedNotification]"
I'm tired and confused, not certain about the rest of the code either. Would appreciate any help and please. Correct my code if I'm wrong.
You are missing an implicit conversion from the java.util.List returned and the scala List that you want. Try adding the following import:
import scala.collection.JavaConversions._
And tweak this line:
val notifications:List[PushedNotification] = javapns.Push.payload(payload, keystoreFile, keystorePassword, false, devices)
To this:
val notifications:List[PushedNotification] = javapns.Push.payload(payload, keystoreFile, keystorePassword, false, devices).toList
Also, it looks like you will be pushing two times to each device here as the calls to payload and alert both push notifications to the devices. If you only really wanted to send the complex payload that you build, then your code should probably be:
val results = javapns.Push.payload(payload, keystoreFile, keystorePassword, false, devices)
for(notification <- result.getFailedNotifications.toList){
/* Add code here to remove invalid tokens from database */
}
I'm trying to learn how to use web sockets in Play 2.1, and I'm having trouble getting the web socket URL to work with my app's routing configuration. I started with a new Play application and the Play framework documentation on websockets.
Here is my conf/routes:
# Home page
GET / controllers.Application.index
# Websocket test site
GET /wstest controllers.Application.wstest
Then I added the wstest function to my controller class:
object Application extends Controller {
def index = Action {
Ok(views.html.index("Websocket Test"))
}
def wstest = WebSocket.using[String] { request =>
// Log events to the console
val in = Iteratee.foreach[String](println).mapDone { _ =>
Logger.info("Disconnected")
}
// Send a single 'Hello!' message
val out = Enumerator("Hello!")
(in, out)
}
}
However, so far, I can only access the websocket with the URL ws://localhost:9000/wstest (using the sample code at websocket.org/echo.html). I was looking at the sample/scala/websocket-chat app that comes with the Play framework, and it uses the routing configuration file to reference the websocket, like this:
var WS = window['MozWebSocket'] ? MozWebSocket : WebSocket
var chatSocket = new WS("#routes.Application.chat(username).webSocketURL()")
I tried replacing my websocket URL with #routes.Application.wstest.webSocketURL() and #routes.Application.wstest. The first one doesn't compile. The second one compiles, but the client and server don't exchange any messages.
How can I use my Play routing configuration to access this websocket? What am I doing wrong here?
Edit
Here is a screenshot of my compilation error, "Cannot find any HTTP Request Header here":
Without the compiler error it's hard to guess what might be the problem.
Either you have to use parens because of the implicit request, i.e. #routes.Application.wstest().webSocketURL(), or you have no implicit request in scope which is needed for the webSocketURL call.
Marius is right that there was no implicit request in scope. Here's how to get it in scope:
Update the index function in the controller:
def index = Action { implicit request =>
Ok(views.html.index("Websocket Test"))
}
Add the request as a curried parameter to index.scala.html:
#(message: String)(implicit request: RequestHeader)
#main(message) {
<script>
var output;
function init() {
output = document.getElementById("output");
testWebSocket();
}
function testWebSocket() {
websocket = new WebSocket("#routes.Application.wstest.webSocketURL()");
.
.
.
And now the RequestHeader is in scope.