io.servicetalk.opentelemetry.http.HeadersPropagatorSetter Maven / Gradle / Ivy
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A networking framework that evolves with your application
/*
* Copyright © 2022 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.HttpHeaders;
import io.opentelemetry.context.propagation.TextMapSetter;
import java.util.Locale;
import javax.annotation.Nullable;
final class HeadersPropagatorSetter implements TextMapSetter {
static final TextMapSetter INSTANCE = new HeadersPropagatorSetter();
private HeadersPropagatorSetter() {
}
@Override
public void set(@Nullable final HttpHeaders headers, final String key, final String value) {
if (headers != null) {
headers.set(key.toLowerCase(Locale.ENGLISH), value);
}
}
}
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