com.alipay.sofa.tracer.plugins.okhttp.OkHttpRequestCarrier Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 com.alipay.sofa.tracer.plugins.okhttp;

import io.opentracing.propagation.TextMap;
import okhttp3.Headers;

import java.util.Iterator;
import java.util.Map;

/**
 * @author xianglong.chen
 * @since 2019/1/17 9:24
 */
public class OkHttpRequestCarrier implements TextMap {

    private Headers.Builder headerBuilder;

    public OkHttpRequestCarrier(Headers.Builder headerBuilder) {
        if (headerBuilder == null) {
            throw new NullPointerException("Headers headerBuilder should not be null!");
        }

        this.headerBuilder = headerBuilder;
    }

    @Override
    public Iterator> iterator() {
        // no operation
        throw new UnsupportedOperationException();
    }

    @Override
    public void put(String key, String value) {
        headerBuilder.add(key, value);
    }
}