gRPC java server with multiple services

[Ronald Sigal]

Hi,

My goal is to have a single gRPC port such that services / interceptors in each Web Archive are segregated from other WARs.

It seems that a io.grpc.internal.ServerImpl monitoring a port has a single

HandlerRegistry for methods and a single field for holding all ServerInterceptors.

Would I have to set up a port for each WAR to keep things separate?

By the way, the point of the project is to incorporate gRPC into the WildFly application

server.

Thanks,

Ron Sigal

[Kannan Jayaprakasam]

Yes a single io.grpc.Server maintains a single registry as you pointed out. You could create one io.grpc.Server instance for each WAR  listening on distinct ports.

[Ronald Sigal]

Hi Kannan,

Thank you for verifying my suspicion. In fact, what I have done was to manage the interceptors manually.

For each WAR:

  1. extract all services

  2. extract all interceptors

  3. for each method, use io.grpc.InternalServerInterceptors.interceptCallHandlerCreate() to wrap the interceptors "manually" and create a BindableService which gets stored in a MutableHandlerRegistry.

At the moment, the code is in a pull request: https://github.com/wildfly-extras/wildfly-grpc-feature-pack/pull/274. I expect there will be a release soon.

-Ron