add markJobSuccessful api call

docs/docs/api.md

@@ -96,6 +96,19 @@ You can manually start a job by issuing an HTTP request.
 * Example: `curl -L -X PUT chronos-node:8080/scheduler/job/job_name?arguments=-debug`
 * Response: HTTP 204
 
+## Marking a job as successful
+
+You can manually mark a job as successful by issuing an HTTP request. If a job is marked successful, the success count
+of the job is incremented, the latest successful run time is updated, and all downstream dependencies are handled as if
+the job had completed executing the code in a standard run.
+the job normally runs.
+
+* Endpoint: ___/scheduler/job/success/<jobname>
+* Method: __PUT__
+* Query string parameters: `arguments` - jobname to be marked success
+* Example: `curl -L -X PUT chronos-node:8080/scheduler/job/success/request_event_counter_hourly`
+* Response: boolean (true or false depending on success of request)
+
 ## Adding a Scheduled Job
 
 The heart of job scheduling is a JSON POST request.

src/main/scala/org/apache/mesos/chronos/scheduler/api/JobManagementResource.scala

@@ -162,6 +162,28 @@ class JobManagementResource @Inject()(val jobScheduler: JobScheduler,
     }
   }
 
+  /**
+   * Mark Job successful
+   */
+  @Path(PathConstants.jobSuccessPath)
+  @PUT
+  @Timed
+  def markJobSuccessful(@PathParam("jobName") jobName: String): Response = {
+    try {
+      val success = jobScheduler.markJobSuccessAndFireOffDependencies(jobName)
+      Response.ok("marked job %s as successful: %b".format(jobName, success)).build()
+    } catch {
+      case ex: IllegalArgumentException =>
+        log.log(Level.INFO, "Bad Request", ex)
+        Response.status(Response.Status.BAD_REQUEST).entity(ex.getMessage)
+          .build()
+      case ex: Exception =>
+        log.log(Level.WARNING, "Exception while serving request", ex)
+        Response.serverError().build
+    }
+  }
+
+
   /**
    * Allows an user to update the elements processed count for a job that
    * supports data tracking. The processed count has to be non-negative.

src/main/scala/org/apache/mesos/chronos/scheduler/api/PathConstants.scala

@@ -15,6 +15,7 @@ object PathConstants {
   final val allStatsPath = "stats/{percentile}"
   final val jobStatsPatternPath = "job/stat/{jobName}"
   final val jobTaskProgressPath = "job/{jobName}/task/{taskId}/progress"
+  final val jobSuccessPath = "job/success/{jobName}"
   final val graphBasePath = "/graph"
   final val jobGraphDotPath = "dot"
   final val jobGraphCsvPath = "csv"

src/main/scala/org/apache/mesos/chronos/scheduler/jobs/JobScheduler.scala

@@ -267,18 +267,7 @@ class JobScheduler @Inject()(val scheduleHorizon: Period,
       val job = jobOption.get
       jobsObserver.apply(JobFinished(job, taskStatus, attempt))
 
-      val newJob = job match {
-        case job: ScheduleBasedJob =>
-          job.copy(successCount = job.successCount + 1,
-            errorsSinceLastSuccess = 0,
-            lastSuccess = DateTime.now(DateTimeZone.UTC).toString)
-        case job: DependencyBasedJob =>
-          job.copy(successCount = job.successCount + 1,
-            errorsSinceLastSuccess = 0,
-            lastSuccess = DateTime.now(DateTimeZone.UTC).toString)
-        case _ =>
-          throw new IllegalArgumentException("Cannot handle unknown task type")
-      }
+      val newJob = getNewSuccessfulJob(job)
       replaceJob(job, newJob)
       processDependencies(jobName, taskDate)
 
@@ -310,6 +299,43 @@ class JobScheduler @Inject()(val scheduleHorizon: Period,
     }
   }
 
+  /**
+   * Mark job by job name as successful. Trigger any dependent children jobs that should be run as a result
+   */
+  def markJobSuccessAndFireOffDependencies(jobName : String): Boolean = {
+    val optionalJob = jobGraph.getJobForName(jobName)
+    if (optionalJob.isEmpty) {
+      log.warning("%s not found in job graph, not marking success".format(jobName))
+      return false
+    } else {
+      val job = optionalJob.get
+      jobMetrics.updateJobStatus(jobName, success = true)
+      val newJob = getNewSuccessfulJob(job)
+      replaceJob(job, newJob)
+      log.info("Resetting dependency invocations for %s".format(newJob))
+      jobGraph.resetDependencyInvocations(jobName)
+      log.info("Processing dependencies for %s".format(jobName))
+      processDependencies(jobName, Option(DateTime.parse(newJob.lastSuccess)))
+    }
+    true
+  }
+
+  private def getNewSuccessfulJob(job: BaseJob): BaseJob = {
+    val newJob = job match {
+      case job: ScheduleBasedJob =>
+        job.copy(successCount = job.successCount + 1,
+          errorsSinceLastSuccess = 0,
+          lastSuccess = DateTime.now(DateTimeZone.UTC).toString)
+      case job: DependencyBasedJob =>
+        job.copy(successCount = job.successCount + 1,
+          errorsSinceLastSuccess = 0,
+          lastSuccess = DateTime.now(DateTimeZone.UTC).toString)
+      case _ =>
+        throw new scala.IllegalArgumentException("Cannot handle unknown task type")
+    }
+    newJob
+  }
+
   def replaceJob(oldJob: BaseJob, newJob: BaseJob) {
     lock.synchronized {
       jobGraph.replaceVertex(oldJob, newJob)

src/test/scala/org/apache/mesos/chronos/scheduler/jobs/JobSchedulerIntegrationTest.scala

@@ -70,6 +70,63 @@ class JobSchedulerIntegrationTest extends SpecificationWithJUnit with Mockito {
       there was one(mockJobsObserver).apply(JobFailed(Right(job3), TaskUtils.getTaskStatus(job1, DateTime.parse("2012-01-03T00:00:01.000Z"), 0), 0))
     }
 
+    "Marking a job successful updates the success and error counts and triggers children" in {
+      val epsilon = Minutes.minutes(20).toPeriod
+      val job1 = new ScheduleBasedJob(schedule = "R/2012-01-01T00:00:00.000Z/PT1D",
+        name = "job1", command = "fooo", epsilon = epsilon, retries = 0)
+      val dependentJob = new DependencyBasedJob(Set("job1", "job3"), name = "dependentJob", command = "CMD", disabled = false)
+      val job3 = new ScheduleBasedJob(schedule = "R/2012-01-01T00:00:00.000Z/PT1D",
+        name = "job3", command = "fooo", epsilon = epsilon, retries = 0)
+
+      val horizon = Minutes.minutes(5).toPeriod
+      val mockTaskManager = mock[TaskManager]
+      val jobGraph = new JobGraph()
+      val mockPersistenceStore = mock[PersistenceStore]
+      val mockJobsObserver = mockFullObserver
+
+      val scheduler = mockScheduler(horizon, mockTaskManager, jobGraph, mockPersistenceStore, mockJobsObserver)
+      val date = DateTime.parse("2011-01-01T00:05:01.000Z")
+
+      val edgeInvocationCount = jobGraph.edgeInvocationCount
+
+      scheduler.leader.set(true)
+      scheduler.registerJob(job1, persist = true, date)
+      scheduler.registerJob(job3, persist = true, date)
+      scheduler.registerJob(dependentJob, persist = true, date)
+
+      scheduler.run(() => {
+        date
+      })
+
+      val failedDate = date.plusMinutes(1)
+      val passingDate = date.plusMinutes(1)
+
+      scheduler.handleFailedTask(TaskUtils.getTaskStatus(job1, failedDate, 0))
+      scheduler.handleFinishedTask(TaskUtils.getTaskStatus(job3, passingDate, 0))
+      val failedJob = jobGraph.lookupVertex("job1").get
+      failedJob.errorCount must_== 1
+      failedJob.successCount must_== 0
+      failedJob.errorsSinceLastSuccess must_== 1
+
+      scheduler.markJobSuccessAndFireOffDependencies("job1")
+      val jobMarkedSuccess = jobGraph.lookupVertex("job1").get
+      jobMarkedSuccess.errorCount must_== 1
+      jobMarkedSuccess.successCount must_== 1
+      jobMarkedSuccess.errorsSinceLastSuccess must_== 0
+      val lastSuccess = DateTime.parse(jobMarkedSuccess.lastSuccess)
+      there was one(mockTaskManager).enqueue(TaskUtils.getTaskId(dependentJob, lastSuccess, 0),
+        highPriority = false)
+      scheduler.handleStartedTask(TaskUtils.getTaskStatus(dependentJob, lastSuccess, 0))
+      scheduler.handleFinishedTask(TaskUtils.getTaskStatus(dependentJob, lastSuccess, 0))
+      edgeInvocationCount.get(jobGraph.dag.getEdge("job1", "dependentJob")) must_== Some(0L)
+      jobGraph.lookupVertex("dependentJob").get.successCount must_== 1
+
+      scheduler.handleFinishedTask(TaskUtils.getTaskStatus(job1, passingDate, 0))
+      scheduler.markJobSuccessAndFireOffDependencies("dependentJob")
+      jobGraph.lookupVertex("dependentJob").get.successCount must_== 2
+      edgeInvocationCount.get(jobGraph.dag.getEdge("job1", "dependentJob")) must_== Some(0L)
+    }
+
     "Tests that a disabled job does not run and does not execute dependant children." in {
       val epsilon = Minutes.minutes(20).toPeriod
       val job1 = new ScheduleBasedJob(schedule = "R/2012-01-01T00:00:00.000Z/PT1M",