io.servicetalk.opentelemetry.http.RequestHeadersPropagatorSetter Maven / Gradle / Ivy

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A networking framework that evolves with your application

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/*
 * Copyright © 2023 Apple Inc. and the ServiceTalk project 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 io.servicetalk.opentelemetry.http;

import io.servicetalk.http.api.HttpRequestMetaData;

import io.opentelemetry.context.propagation.TextMapSetter;

import javax.annotation.Nullable;

final class RequestHeadersPropagatorSetter implements TextMapSetter {

    static final TextMapSetter INSTANCE = new RequestHeadersPropagatorSetter();

    private RequestHeadersPropagatorSetter() {
    }

    @Override
    public void set(@Nullable final HttpRequestMetaData carrier, final String key, final String value) {
        if (carrier != null) {
            HeadersPropagatorSetter.INSTANCE.set(carrier.headers(), key, value);
        }
    }
}