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Example 1 with GET_STREAM_CONFIGURATION

use of io.pravega.shared.controller.tracing.RPCTracingTags.GET_STREAM_CONFIGURATION in project pravega by pravega.

the class ControllerServiceImpl method getStreamConfiguration.

@Override
public void getStreamConfiguration(StreamInfo request, StreamObserver<StreamConfig> responseObserver) {
    RequestTag requestTag = requestTracker.initializeAndTrackRequestTag(controllerService.nextRequestId(), GET_STREAM_CONFIGURATION);
    String scope = request.getScope();
    String stream = request.getStream();
    log.info(requestTag.getRequestId(), "{} called for {}/{}.", GET_STREAM_CONFIGURATION, scope, stream);
    final AuthContext ctx;
    if (this.grpcAuthHelper.isAuthEnabled()) {
        ctx = AuthContext.current();
    } else {
        ctx = null;
    }
    Supplier<String> stringSupplier = () -> {
        String result = this.grpcAuthHelper.checkAuthorization(authorizationResource.ofStreamInScope(scope, stream), AuthHandler.Permissions.READ, ctx);
        log.debug("Result of authorization for [{}] and READ permission is: [{}]", authorizationResource.ofScopes(), result);
        return result;
    };
    Function<String, CompletableFuture<StreamConfig>> streamFn = delegationToken -> controllerService.getStream(scope, stream, requestTag.getRequestId()).handle((response, e) -> {
        if (e != null) {
            throw new CompletionException(e);
        } else {
            return decode(scope, stream, response);
        }
    });
    authenticateExecuteAndProcessResults(stringSupplier, streamFn, responseObserver, requestTag);
}
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Aggregations

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