minor refactoring to support different threshold arbiters

.env

@@ -6,4 +6,4 @@ WARP_CORE_INFLUX_PORT=8086
 # Versions
 MYSQL_VERSION=8.0.30
 INFLUX_VERSION=1.5.2
-GRAFANA_VERSION=5.0.2
+GRAFANA_VERSION=8.2.6

warp-core/src/main/scala/com/workday/warp/arbiters/ResponseTimeArbiter.scala

@@ -29,9 +29,9 @@ class ResponseTimeArbiter extends ArbiterLike with CorePersistenceAware {
     */
   override def vote[T: TestExecutionRowLikeType](ballot: Ballot, testExecution: T): Option[Throwable] = {
     val testId: String = this.persistenceUtils.getMethodSignature(testExecution)
-    val threshold: Duration = testExecution.responseTimeRequirement.seconds
+    val threshold: Duration = this.getThreshold(testExecution)
 
-    val responseTime: Duration = Duration.ofNanos(TimeUtils.toNanos(testExecution.responseTime, TimeUnit.SECONDS))
+    val responseTime: Duration = this.getResponseTime(testExecution)
 
     if (threshold.isPositive && responseTime > threshold) {
       Option(new RequirementViolationException(
@@ -43,4 +43,27 @@ class ResponseTimeArbiter extends ArbiterLike with CorePersistenceAware {
       None
     }
   }
+
+
+  /**
+    * Gets response time from the test execution. Subclasses may have a different notion of where to obtain response time.
+    *
+    * @param testExecution [[TestExecutionRowLikeType]] we are voting on.
+    * @return test response time as a [[Duration]].
+    */
+  def getResponseTime[T: TestExecutionRowLikeType](testExecution: T): Duration = {
+    TimeUtils.toNanos(testExecution.responseTime, TimeUnit.SECONDS).nanoseconds
+  }
+
+
+  /**
+    * Gets test response time threshold from the test execution. Subclasses may have a different notion of where to obtain
+    * a threshold. For example, [[SpikeFilterSettings]].
+    *
+    * @param testExecution [[TestExecutionRowLikeType]] we are voting on.
+    * @return test response time threshold as a [[Duration]].
+    */
+  def getThreshold[T: TestExecutionRowLikeType](testExecution: T): Duration = {
+    testExecution.responseTimeRequirement.seconds
+  }
 }