Copyright 2018, OpenCensus Authors Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

package ocgrpc

import (
	

	

	
)
ServerHandler implements gRPC stats.Handler recording OpenCensus stats and traces. Use with gRPC servers. When installed (see Example), tracing metadata is read from inbound RPCs by default. If no tracing metadata is present, or if the tracing metadata is present but the SpanContext isn't sampled, then a new trace may be started (as determined by Sampler).
IsPublicEndpoint may be set to true to always start a new trace around each RPC. Any SpanContext in the RPC metadata will be added as a linked span instead of making it the parent of the span created around the server RPC. Be aware that if you leave this false (the default) on a public-facing server, callers will be able to send tracing metadata in gRPC headers and trigger traces in your backend.
	IsPublicEndpoint bool
StartOptions to use for to spans started around RPCs handled by this server. These will apply even if there is tracing metadata already present on the inbound RPC but the SpanContext is not sampled. This ensures that each service has some opportunity to be traced. If you would like to not add any additional traces for this gRPC service, set: StartOptions.Sampler = trace.ProbabilitySampler(0.0) StartOptions.SpanKind will always be set to trace.SpanKindServer for spans started by this handler.
	StartOptions trace.StartOptions
}

var _ stats.Handler = (*ServerHandler)(nil)
HandleConn exists to satisfy gRPC stats.Handler.
no-op
}
TagConn exists to satisfy gRPC stats.Handler.
no-op
	return 
}
HandleRPC implements per-RPC tracing and stats instrumentation.
func ( *ServerHandler) ( context.Context,  stats.RPCStats) {
	traceHandleRPC(, )
	statsHandleRPC(, )
}
TagRPC implements per-RPC context management.
func ( *ServerHandler) ( context.Context,  *stats.RPCTagInfo) context.Context {
	 = .traceTagRPC(, )
	 = .statsTagRPC(, )
	return