Barbara Gomes created IOTA-34:
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Summary: Add Global Watch Service to Fey
Key: IOTA-34
URL: https://issues.apache.org/jira/browse/IOTA-34
Project: Iota
Issue Type: Task
Reporter: Barbara Gomes
Assignee: Barbara Gomes
Priority: Minor
Some performer implementation requires watch a file directory for file events
like CREATE, UPDATE and DELETE.
If each performer implements its own Watch Service, it means that each one will
have an additional thread for watching the directory which would be a waste of
resources in most cases, since Fey could have one only thread that watches all
necessary directories for all running performers and send a message to the
performer once it receives the event that the performer is looking for.
*Suggestion:*
Fey will implement its own *Global Watch Service* and will be responsible for
keeping it running and distribute the events to the right Performers.
In order to use it, the performer will have to send a message to the Global
Watch Service Actor on Fey that contains:
* ActorRef
* Directory Path
* Optional File name (In case it is watching for changes on a specific file)
* List of Watch Events that it is waiting for
The FeyGenericActor will offer a new method that would be called every time the
Performer receives a new event. It would contain:
* Path
* Event type
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