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Update TaskLifecycleListener to use SmartLifecycle

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This commit changes the starting point of a task from the point when the
ApplicationContext issues the ContextRefreshedEvent to
SmartLifecycle#start.  This is a more accurate point of start for a task
in that all beans should now be available.  It also allows us to clean
up many ApplicationContext hacks that were present to get around the
fact that many beans were not ready when a Task was attempting to begin.

Resolves spring-cloud/spring-cloud-task#107
This commit is contained in:
Michael Minella
2016-03-11 14:17:02 -06:00
committed by Glenn Renfro
parent 7c8fc5f50e
commit f35f8ef52d
17 changed files with 384 additions and 310 deletions
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11
spring-cloud-task-docs/src/main/asciidoc/features.adoc
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@@ -33,13 +33,10 @@ Spring Boot application configured to be a task (annotated with the `@EnableTask
annotation).
At the beginning of a task, an entry in the `TaskRepository` is created recording the
start event. This event is triggered via the `ContextRefreshEvent` being triggered by
Spring Framework.
start event. This event is triggered via `SmartLifecycle#start` being triggered by
Spring Framework. This indicates to the system that all beans are ready for use and is
before the execution of any of the `*Runner`s provided by Spring Boot.
NOTE: As Spring Cloud Task is expected to consist of a single application context. If
multiple application contexts are used (parent/child relationships for example), the first
`ContextRefreshEvent` that is published by Spring will be recorded as the start of the
task.
NOTE: The recording of a task will only occur upon the successful bootstrapping of an
`ApplicationContext`. If the context fails to bootstrap at all, the task's execution will
@@ -70,7 +67,7 @@ assumed to be 0.
|The name for the task as determined by the configured `TaskNameResolver`.
|`starTime`
|The time the task was started as indicated by the `ContextRefreshEvent`.
|The time the task was started as indicated by the `SmartLifecycle#start` call.
|`endTime`
|The time the task was completed as indicated by the `ContextClosedEvent`.