zhijiang created FLINK-12078:
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Summary: Abstract TaskEventPublisher interface for simplify
NetworkEnvironment
Key: FLINK-12078
URL: https://issues.apache.org/jira/browse/FLINK-12078
Project: Flink
Issue Type: Sub-task
Components: Runtime / Network
Reporter: zhijiang
Assignee: zhijiang
Currently {{TaskEventDispatcher}} is maintained in {{NetworkEnvironment}} for
register/unregister partition and used for {{NettyConnectionManager}}. In order
for further decoupling {{Task}} with {{NetworkEnvironment}}, we introduce
{{TaskEventPublisher}} interface for providing {{publish}} method only. Then
the {{NetworkEnvironment}} could maintain {{TaskEventPublisher}} and the
{{register/unregister}} would be removed outside to be handled by {{Task}}
directly.
To do so, the {{NetworkEnvironment#unregisterTask}} would be removed finally
and the {{partition/gate#close}} could be instead.
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