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io.gatling.http.action.sse.fsm.SsePerformingCheckState.scala Maven / Gradle / Ivy
/*
* Copyright 2011-2021 GatlingCorp (https://gatling.io)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.gatling.http.action.sse.fsm
import io.gatling.commons.stats.{ KO, OK }
import io.gatling.commons.validation.{ Failure, Success }
import io.gatling.core.action.Action
import io.gatling.core.check.Check
import io.gatling.core.session.Session
import io.gatling.http.check.sse.{ SseCheck, SseMessageCheck, SseMessageCheckSequence }
import com.typesafe.scalalogging.StrictLogging
final case class SsePerformingCheckState(
fsm: SseFsm,
currentCheck: SseMessageCheck,
remainingChecks: List[SseMessageCheck],
checkSequenceStart: Long,
remainingCheckSequences: List[SseMessageCheckSequence],
session: Session,
next: Action
) extends SseState(fsm)
with StrictLogging {
import fsm._
override def onTimeout(): NextSseState = {
logger.debug(s"Check timeout")
// check timeout
// fail check, send next and goto Idle
val errorMessage = s"Check ${currentCheck.name} timeout"
val newSession = logResponse(session, currentCheck.name, checkSequenceStart, clock.nowMillis, KO, None, Some(errorMessage))
logger.debug(s"$errorMessage, failing it and performing next action")
NextSseState(new SseIdleState(fsm, newSession), () => next ! newSession)
}
override def onSseStreamConnected(timestamp: Long): NextSseState = {
logger.debug("SSE Stream reconnected while in PerformingChecks state")
NextSseState(this)
}
override def onSseReceived(message: String, timestamp: Long): NextSseState =
tryApplyingChecks(message, timestamp, currentCheck.matchConditions, currentCheck.checks)
override def onSseEndOfStream(timestamp: Long): NextSseState = {
// unexpected end of stream, fail check
logger.debug(s"Server notified of end of stream while in PerformingChecks state")
cancelTimeout()
handleSseCheckCrash(currentCheck.name, session, next, None, "End of stream")
}
override def onSseStreamCrashed(t: Throwable, timestamp: Long): NextSseState = {
// crash, fail check
logger.debug("SSE stream crashed while in PerformingChecks state", t)
cancelTimeout()
handleSseCheckCrash(currentCheck.name, session, next, None, t.getMessage)
}
private def tryApplyingChecks(message: String, timestamp: Long, matchConditions: List[SseCheck], checks: List[SseCheck]): NextSseState = {
// cache is used for both matching and checking
val preparedCache = Check.newPreparedCache
// if matchConditions isEmpty, all messages are considered to be matching
val messageMatches = matchConditions.forall {
_.check(message, session, preparedCache) match {
case _: Success[_] => true
case _ => false
}
}
if (messageMatches) {
logger.debug(s"Received matching message $message")
cancelTimeout()
// matching message, apply checks
val (sessionWithCheckUpdate, checkError) = Check.check(message, session, checks, preparedCache)
checkError match {
case Some(Failure(errorMessage)) =>
logger.debug("Check failed, performing next action")
val newSession = logResponse(sessionWithCheckUpdate, currentCheck.name, checkSequenceStart, timestamp, KO, None, Some(errorMessage))
NextSseState(new SseIdleState(fsm, newSession), () => next ! newSession)
case _ =>
logger.debug("Current check success")
// check success
val newSession = logResponse(sessionWithCheckUpdate, currentCheck.name, checkSequenceStart, timestamp, OK, None, None)
remainingChecks match {
case nextCheck :: nextRemainingChecks =>
// perform next check
logger.debug("Perform next check of current check sequence")
//[fl]
//
//[fl]
NextSseState(
this.copy(
currentCheck = nextCheck,
remainingChecks = nextRemainingChecks,
session = newSession
)
)
case _ =>
remainingCheckSequences match {
case SseMessageCheckSequence(timeout, nextCheck :: nextRemainingChecks) :: nextRemainingCheckSequences =>
logger.debug("Perform next check sequence")
// perform next CheckSequence
scheduleTimeout(timeout)
//[fl]
//
//[fl]
NextSseState(
this.copy(
currentCheck = nextCheck,
remainingChecks = nextRemainingChecks,
checkSequenceStart = timestamp,
remainingCheckSequences = nextRemainingCheckSequences,
session = newSession
)
)
case _ =>
// all check sequences complete
logger.debug("Check sequences completed successfully")
NextSseState(new SseIdleState(fsm, newSession), () => next ! newSession)
}
}
}
} else {
logger.debug(s"Received non-matching message $message")
// server unmatched message, just log
logUnmatchedServerMessage(session)
NextSseState(this)
}
}
private def handleSseCheckCrash(
checkName: String,
session: Session,
next: Action,
code: Option[String],
errorMessage: String
): NextSseState = {
val fullMessage = s"SSE crashed while waiting for check: $errorMessage"
val newSession = logResponse(session, checkName, checkSequenceStart, clock.nowMillis, KO, code, Some(fullMessage))
logger.debug("SSE crashed, performing next action")
NextSseState(new SseCrashedState(fsm, errorMessage), () => next ! newSession)
}
}
