object RestartSourceWithContext
A RestartSourceWithContext wraps a SourceWithContext that gets restarted when it completes or fails.
They are useful for graphs that need to run for longer than the SourceWithContext can necessarily guarantee it will, e.g. for SourceWithContext streams that depend on a remote service to which connectivity may be lost (crash or partition). The RestartSourceWithContext ensures that the graph can continue running while the SourceWithContext restarts.
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- def onFailuresWithBackoff[T, C](settings: RestartSettings)(sourceFactory: () => SourceWithContext[T, C, _]): SourceWithContext[T, C, NotUsed]
Wrap the given SourceWithContext with a SourceWithContext that will restart it when it fails using an exponential backoff.
Wrap the given SourceWithContext with a SourceWithContext that will restart it when it fails using an exponential backoff.
The returned SourceWithContext will not emit a failure as long as maxRestarts is not reached, since the failure of the wrapped SourceWithContext is handled by restarting it. The wrapped SourceWithContext can however be canceled by canceling the returned SourceWithContext. When that happens, the wrapped SourceWithContext if currently running will be canceled and will not be restarted.
- settings
RestartSettings defining restart configuration
- sourceFactory
A factory for producing the SourceWithContext to wrap
- def withBackoff[T, C](settings: RestartSettings)(sourceFactory: () => SourceWithContext[T, C, _]): SourceWithContext[T, C, NotUsed]
Wrap the given SourceWithContext with a SourceWithContext that will restart it when it fails or completes using an exponential backoff.
Wrap the given SourceWithContext with a SourceWithContext that will restart it when it fails or completes using an exponential backoff.
The returned SourceWithContext will not emit a complete or failure as long as maxRestarts is not reached, since the completion or failure of the wrapped SourceWithContext is handled by restarting it. The wrapped SourceWithContext can however be canceled by canceling the returned SourceWithContext. When that happens, the wrapped SourceWithContext if currently running will be canceled and will not be restarted.
- settings
RestartSettings defining restart configuration
- sourceFactory
A factory for producing the SourceWithContext to wrap