{"action":"created","comment":{"url":"https://api.github.com/repos/broadinstitute/cromwell/pulls/comments/88959505","pull_request_review_id":9514893,"id":88959505,"diff_hunk":"@@ -0,0 +1,265 @@\n+package cromwell.engine.workflow.lifecycle.execution\n+\n+import akka.actor.{ActorRef, FSM, LoggingFSM, Props}\n+import cromwell.backend.{AllBackendInitializationData, BackendLifecycleActorFactory, BackendWorkflowDescriptor}\n+import cromwell.core._\n+import cromwell.core.logging.JobLogging\n+import cromwell.engine.EngineWorkflowDescriptor\n+import cromwell.engine.backend.{BackendConfiguration, BackendSingletonCollection}\n+import cromwell.engine.workflow.lifecycle.execution.CallPreparationActor.{CallPreparationFailed, Start, SubWorkflowPreparationSucceeded}\n+import cromwell.engine.workflow.lifecycle.execution.SubWorkflowExecutionActor.{SubWorkflowExecutionActorData, _}\n+import cromwell.engine.workflow.lifecycle.execution.WorkflowExecutionActor._\n+import cromwell.services.metadata.MetadataService._\n+import cromwell.services.metadata.{MetadataKey, _}\n+import cromwell.subworkflowstore.SubWorkflowStoreActor._\n+import wdl4s.EvaluatedTaskInputs\n+\n+class SubWorkflowExecutionActor(key: SubWorkflowKey,\n+                                data: WorkflowExecutionActorData,\n+                                factories: Map[String, BackendLifecycleActorFactory],\n+                                override val serviceRegistryActor: ActorRef,\n+                                jobStoreActor: ActorRef,\n+                                subWorkflowStoreActor: ActorRef,\n+                                callCacheReadActor: ActorRef,\n+                                jobTokenDispenserActor: ActorRef,\n+                                backendSingletonCollection: BackendSingletonCollection,\n+                                initializationData: AllBackendInitializationData,\n+                                restarting: Boolean) extends LoggingFSM[SubWorkflowExecutionActorState, SubWorkflowExecutionActorData] with JobLogging with WorkflowMetadataHelper {\n+  \n+  private val parentWorkflow = data.workflowDescriptor\n+  override val workflowId = parentWorkflow.id\n+  override def jobTag: String = key.tag\n+\n+  startWith(SubWorkflowPendingState, SubWorkflowExecutionActorData.empty)\n+  \n+  when(SubWorkflowPendingState) {\n+    case Event(Execute, _) =>\n+      if (restarting) {\n+        subWorkflowStoreActor ! QuerySubWorkflow(parentWorkflow.id, key)\n+        goto(SubWorkflowCheckingStoreState)\n+      } else {\n+        prepareSubWorkflow(createSubWorkflowId())\n+      }\n+  }\n+  \n+  when(SubWorkflowCheckingStoreState) {\n+    case Event(SubWorkflowFound(entry), _) => \n+      prepareSubWorkflow(WorkflowId.fromString(entry.subWorkflowExecutionUuid))\n+    case Event(_: SubWorkflowNotFound, _) =>\n+      prepareSubWorkflow(createSubWorkflowId())\n+    case Event(SubWorkflowStoreFailure(command, reason), _) =>\n+      jobLogger.error(reason, s\"SubWorkflowStore failure for command $command, starting sub workflow with fresh ID.\")\n+      prepareSubWorkflow(createSubWorkflowId())\n+  }\n+  \n+  when(SubWorkflowPreparingState) {\n+    case Event(SubWorkflowPreparationSucceeded(subWorkflowEngineDescriptor, inputs), _) =>\n+      startSubWorkflow(subWorkflowEngineDescriptor, inputs)\n+    case Event(failure: CallPreparationFailed, _) =>\n+      context.parent ! failure\n+      context stop self\n+      stay()\n+  }\n+  \n+  when(SubWorkflowRunningState) {\n+    case Event(WorkflowExecutionSucceededResponse(executedJobKeys, outputs), _) =>\n+      context.parent ! SubWorkflowSucceededResponse(key, executedJobKeys, outputs)\n+      goto(SubWorkflowSucceededState)\n+    case Event(WorkflowExecutionFailedResponse(executedJobKeys, reason), _) =>\n+      context.parent ! SubWorkflowFailedResponse(key, executedJobKeys, reason)\n+      goto(SubWorkflowFailedState)\n+    case Event(WorkflowExecutionAbortedResponse(executedJobKeys), _) =>\n+      context.parent ! SubWorkflowAbortedResponse(key, executedJobKeys)\n+      goto(SubWorkflowAbortedState)\n+  }\n+  \n+  when(SubWorkflowSucceededState) { FSM.NullFunction }\n+  when(SubWorkflowFailedState) { FSM.NullFunction }\n+  when(SubWorkflowAbortedState) { FSM.NullFunction }\n+  \n+  whenUnhandled {\n+    case Event(SubWorkflowStoreRegisterSuccess(command), _) =>\n+      // Nothing to do here\n+      stay()\n+    case Event(SubWorkflowStoreCompleteSuccess(command), _) =>\n+      // Nothing to do here\n+      stay()\n+    case Event(SubWorkflowStoreFailure(command, reason), _) =>\n+      jobLogger.error(reason, s\"SubWorkflowStore failure for command $command\")\n+      stay()\n+    case Event(MetadataPutFailed(action, error), _) =>\n+      jobLogger.warn(s\"Put failed for Metadata action $action\", error)\n+      stay()\n+    case Event(MetadataPutAcknowledgement(_), _) => stay()\n+  }\n+\n+  onTransition {\n+    case (fromState, toState) if fromState.workflowState != toState.workflowState =>\n+      stateData.subWorkflowId foreach { id => pushCurrentStateToMetadataService(id, toState.workflowState) } \n+  }\n+  \n+  onTransition {\n+    case (fromState, subWorkflowTerminalState: SubWorkflowTerminalState) =>\n+      stateData.subWorkflowId match {\n+        case Some(id) => pushWorkflowEnd(id)\n+        case None => jobLogger.error(\"Sub workflow completed without a Sub Workflow UUID.\")","path":"engine/src/main/scala/cromwell/engine/workflow/lifecycle/execution/SubWorkflowExecutionActor.scala","position":105,"original_position":105,"commit_id":"6452a47ae3b2343266a3a3d980a91635cf2e027b","original_commit_id":"6452a47ae3b2343266a3a3d980a91635cf2e027b","user":{"login":"Horneth","id":2978948,"avatar_url":"https://avatars.githubusercontent.com/u/2978948?v=3","gravatar_id":"","url":"https://api.github.com/users/Horneth","html_url":"https://github.com/Horneth","followers_url":"https://api.github.com/users/Horneth/followers","following_url":"https://api.github.com/users/Horneth/following{/other_user}","gists_url":"https://api.github.com/users/Horneth/gists{/gist_id}","starred_url":"https://api.github.com/users/Horneth/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Horneth/subscriptions","organizations_url":"https://api.github.com/users/Horneth/orgs","repos_url":"https://api.github.com/users/Horneth/repos","events_url":"https://api.github.com/users/Horneth/events{/privacy}","received_events_url":"https://api.github.com/users/Horneth/received_events","type":"User","site_admin":false},"body":"I don't think it can, but I figured that was better than a `stateData.subWorkflowId.get`","created_at":"2016-11-21T18:41:39Z","updated_at":"2016-11-21T18:41:40Z","html_url":"https://github.com/broadinstitute/cromwell/pull/1682#discussion_r88959505","pull_request_url":"https://api.github.com/repos/broadinstitute/cromwell/pulls/1682","_links":{"self":{"href":"https://api.github.com/repos/broadinstitute/cromwell/pulls/comments/88959505"},"html":{"href":"https://github.com/broadinstitute/cromwell/pull/1682#discussion_r88959505"},"pull_request":{"href":"https://api.github.com/repos/broadinstitute/cromwell/pulls/1682"}}},"pull_request":{"url":"https://api.github.com/repos/broadinstitute/cromwell/pulls/1682","id":94067633,"html_url":"https://github.com/broadinstitute/cromwell/pull/1682","diff_url":"https://github.com/broadinstitute/cromwell/pull/1682.diff","patch_url":"https://github.com/broadinstitute/cromwell/pull/1682.patch","issue_url":"https://api.github.com/repos/broadinstitute/cromwell/issues/1682","number":1682,"state":"open","locked":false,"title":"Sub 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https://github.com/broadinstitute/centaur/pull/114\r\n- [x] Needs WDL doc\r\n- [x] Needs Cromwell doc\r\n\r\nWhat it does in a nutshell:\r\n\r\n- Enables sub workflows execution\r\n- Sub workflow metadata can be queried separately or injected in the main workflow metadata\r\n- Restarts work\r\n- Aborts should work (work meaning what abort is doing in develop now)\r\n\r\nTo be addressed:\r\n- ~~Sub Workflow Store cleanup~~\r\n- ~~Workflow outputs copying~~ -> https://github.com/broadinstitute/cromwell/issues/1684\r\n- ~~Call logs copying~~\r\n- Provenance: More related to imports, but right now the actual WDL content of a sub workflow is unknown to cromwell (it's in the `WdlNamespace` as a scala object but the actual text is not available).\r\n","created_at":"2016-11-16T22:51:52Z","updated_at":"2016-11-21T18:41:40Z","closed_at":null,"merged_at":null,"merge_commit_sha":"1d164f77445b965943f76a826dda544b1c87a24e","assignee":{"login":"mcovarr","id":10790523,"avatar_url":"https://avatars.githubusercontent.com/u/10790523?v=3","gravatar_id":"","url":"https://api.github.com/users/mcovarr","html_url":"https://github.com/mcovarr","followers_url":"https://api.github.com/users/mcovarr/followers","following_url":"https://api.github.com/users/mcovarr/following{/other_user}","gists_url":"https://api.github.com/users/mcovarr/gists{/gist_id}","starred_url":"https://api.github.com/users/mcovarr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mcovarr/subscriptions","organizations_url":"https://api.github.com/users/mcovarr/orgs","repos_url":"https://api.github.com/users/mcovarr/repos","events_url":"https://api.github.com/users/mcovarr/events{/privacy}","received_events_url":"https://api.github.com/users/mcovarr/received_events","type":"User","site_admin":false},"assignees":[{"login":"mcovarr","id":10790523,"avatar_url":"https://avatars.githubusercontent.com/u/10790523?v=3","gravatar_id":"","url":"https://api.github.com/users/mcovarr","html_url":"https://github.com/mcovarr","followers_url":"https://api.github.com/users/mcovarr/followers","following_url":"https://api.github.com/users/mcovarr/following{/other_user}","gists_url":"https://api.github.com/users/mcovarr/gists{/gist_id}","starred_url":"https://api.github.com/users/mcovarr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mcovarr/subscriptions","organizations_url":"https://api.github.com/users/mcovarr/orgs","repos_url":"https://api.github.com/users/mcovarr/repos","events_url":"https://api.github.com/users/mcovarr/events{/privacy}","received_events_url":"https://api.github.com/users/mcovarr/received_events","type":"User","site_admin":false}],"milestone":null,"commits_url":"https://api.github.com/repos/broadinstitute/cromwell/pulls/1682/commits","review_comments_url":"https://api.github.com/repos/broadinstitute/cromwell/pulls/1682/comments","review_comment_url":"https://api.github.com/repos/broadinstitute/cromwell/pulls/comments{/number}","comments_url":"https://api.github.com/repos/broadinstitute/cromwell/issues/1682/comments","statuses_url":"https://api.github.com/repos/broadinstitute/cromwell/statuses/6452a47ae3b2343266a3a3d980a91635cf2e027b","head":{"label":"broadinstitute:subworkflow2","ref":"subworkflow2","sha":"6452a47ae3b2343266a3a3d980a91635cf2e027b","user":{"login":"broadinstitute","id":393552,"avatar_url":"https://avatars.githubusercontent.com/u/393552?v=3","gravatar_id":"","url":"https://api.github.com/users/broadinstitute","html_url":"https://github.com/broadinstitute","followers_url":"https://api.github.com/users/broadinstitute/followers","following_url":"https://api.github.com/users/broadinstitute/following{/other_user}","gists_url":"https://api.github.com/users/broadinstitute/gists{/gist_id}","starred_url":"https://api.github.com/users/broadinstitute/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/broadinstitute/subscriptions","organizations_url":"https://api.github.com/users/broadinstitute/orgs","repos_url":"https://api.github.com/users/broadinstitute/repos","events_url":"https://api.github.com/users/broadinstitute/events{/privacy}","received_events_url":"https://api.github.com/users/broadinstitute/received_events","type":"Organization","site_admin":false},"repo":{"id":34136406,"name":"cromwell","full_name":"broadinstitute/cromwell","owner":{"login":"broadinstitute","id":393552,"avatar_url":"https://avatars.githubusercontent.com/u/393552?v=3","gravatar_id":"","url":"https://api.github.com/users/broadinstitute","html_url":"https://github.com/broadinstitute","followers_url":"https://api.github.com/users/broadinstitute/followers","following_url":"https://api.github.com/users/broadinstitute/following{/other_user}","gists_url":"https://api.github.com/users/broadinstitute/gists{/gist_id}","starred_url":"https://api.github.com/users/broadinstitute/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/broadinstitute/subscriptions","organizations_url":"https://api.github.com/users/broadinstitute/orgs","repos_url":"https://api.github.com/users/broadinstitute/repos","events_url":"https://api.github.com/users/broadinstitute/events{/privacy}","received_events_url":"https://api.github.com/users/broadinstitute/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/broadinstitute/cromwell","description":"Workflow 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