io.opentelemetry.instrumentation.grpc.v1_6.GrpcAttributesExtractor Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of opentelemetry-grpc-1.6 Show documentation
Show all versions of opentelemetry-grpc-1.6 Show documentation
Instrumentation of Java libraries using OpenTelemetry.
The newest version!
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.instrumentation.grpc.v1_6;
import static io.opentelemetry.instrumentation.grpc.v1_6.CapturedGrpcMetadataUtil.lowercase;
import static io.opentelemetry.instrumentation.grpc.v1_6.CapturedGrpcMetadataUtil.requestAttributeKey;
import io.grpc.Status;
import io.opentelemetry.api.common.AttributeKey;
import io.opentelemetry.api.common.AttributesBuilder;
import io.opentelemetry.context.Context;
import io.opentelemetry.instrumentation.api.instrumenter.AttributesExtractor;
import java.util.List;
import javax.annotation.Nullable;
final class GrpcAttributesExtractor implements AttributesExtractor {
// copied from RpcIncubatingAttributes
private static final AttributeKey RPC_GRPC_STATUS_CODE =
AttributeKey.longKey("rpc.grpc.status_code");
private final GrpcRpcAttributesGetter getter;
private final List capturedRequestMetadata;
GrpcAttributesExtractor(
GrpcRpcAttributesGetter getter, List requestMetadataValuesToCapture) {
this.getter = getter;
this.capturedRequestMetadata = lowercase(requestMetadataValuesToCapture);
}
@Override
public void onStart(AttributesBuilder attributes, Context parentContext, GrpcRequest request) {
// Request attributes captured on request end.
}
@Override
public void onEnd(
AttributesBuilder attributes,
Context context,
GrpcRequest request,
@Nullable Status status,
@Nullable Throwable error) {
if (status != null) {
attributes.put(RPC_GRPC_STATUS_CODE, status.getCode().value());
}
for (String key : capturedRequestMetadata) {
List value = getter.metadataValue(request, key);
if (!value.isEmpty()) {
attributes.put(requestAttributeKey(key), value);
}
}
}
}