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Ran 25 May 2018 02:18PM UTC

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Committed 25 May 2018 02:18PM UTC coverage: 72.563% (+0.2%) from 72.385%

Job # 93.1

Build Type

push

jenkins

Committed by Sijie Guo

Commit Message

[TABLE SERVICE] client interceptor and storage container grpc proxy

Descriptions of the changes in this PR:

This is a subsequent change after apache/bookkeeper#1428.

*Motivation*

Current almost every grpc requests are wrapped into `StorageContainerRequest` and their responses
are wrapped into `StorageContainerResponse`. It makes things a bit complicated on adding new grpc
services.

*Changes*

To simplify things, this PR introduces two functionalities for simplifying dispatching container requests/responses.

1) *StorageContainerClientInterceptor*: A grpc `ClientInterceptor` that stamps container information (currently is `scId`) into the requests' metadata before sending the requests to the wire.

2) A simple grpc reverse proxy to dispatch grpc requests to the channels provided by a `ChannelFinder`.

*Tests*

1. Existing unit tests covered client interceptor changes.
2. Introduced a `stream-storage-tests-common` module to include common classes that would be used for testing.
3. Introduced a `PingPongService` for testing reverse proxy : unary/client-streaming/server-streaming/bidi-streaming.

Master Issue: #1205

Author: Sijie Guo <sijie@apache.org>

Reviewers: Jia Zhai <None>

This closes #1430 from sijie/interceptor_container_requests

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