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| 1 | +// Copyright 2019, OpenCensus Authors |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | + |
| 15 | +package sender |
| 16 | + |
| 17 | +import ( |
| 18 | + "context" |
| 19 | + |
| 20 | + "go.uber.org/zap" |
| 21 | + "google.golang.org/grpc" |
| 22 | + |
| 23 | + jaegerproto "github.com/jaegertracing/jaeger/proto-gen/api_v2" |
| 24 | + |
| 25 | + "github.com/census-instrumentation/opencensus-service/consumer" |
| 26 | + "github.com/census-instrumentation/opencensus-service/data" |
| 27 | + jaegertranslator "github.com/census-instrumentation/opencensus-service/translator/trace/jaeger" |
| 28 | +) |
| 29 | + |
| 30 | +// JaegerProtoGRPCSender forwards spans encoded in the jaeger proto |
| 31 | +// format, to a grpc server. |
| 32 | +type JaegerProtoGRPCSender struct { |
| 33 | + client jaegerproto.CollectorServiceClient |
| 34 | + logger *zap.Logger |
| 35 | +} |
| 36 | + |
| 37 | +var _ consumer.TraceConsumer = (*JaegerThriftHTTPSender)(nil) |
| 38 | + |
| 39 | +// NewJaegerProtoGRPCSender returns a new GRPC-backend span sender. |
| 40 | +// The collector endpoint should be of the form "hostname:14250". |
| 41 | +func NewJaegerProtoGRPCSender(collectorEndpoint string, zlogger *zap.Logger) *JaegerProtoGRPCSender { |
| 42 | + client, err := grpc.Dial(collectorEndpoint, grpc.WithInsecure()) |
| 43 | + zlogger.Fatal("Failed to dail grpc connection", zap.Error(err)) |
| 44 | + collectorServiceClient := jaegerproto.NewCollectorServiceClient(client) |
| 45 | + s := &JaegerProtoGRPCSender{ |
| 46 | + client: collectorServiceClient, |
| 47 | + logger: zlogger, |
| 48 | + } |
| 49 | + |
| 50 | + return s |
| 51 | +} |
| 52 | + |
| 53 | +// ConsumeTraceData receives data.TraceData for processing by the JaegerProtoGRPCSender. |
| 54 | +func (s *JaegerProtoGRPCSender) ConsumeTraceData(ctx context.Context, td data.TraceData) error { |
| 55 | + protoBatch, err := jaegertranslator.OCProtoToJaegerProto(td) |
| 56 | + if err != nil { |
| 57 | + s.logger.Warn("Error translating OC proto batch to Jaeger proto", zap.Error(err)) |
| 58 | + return err |
| 59 | + } |
| 60 | + |
| 61 | + _, err = s.client.PostSpans(context.Background(), &jaegerproto.PostSpansRequest{Batch: *protoBatch}) |
| 62 | + if err != nil { |
| 63 | + s.logger.Warn("Error sending grpc batch", zap.Error(err)) |
| 64 | + return err |
| 65 | + } |
| 66 | + |
| 67 | + return nil |
| 68 | +} |
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