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Distributed tracing using OpenTracing

There is a newer version: 3.22.2

/*
 * 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 org.apache.camel.opentracing;

import java.util.*;

import io.opentracing.propagation.TextMap;
import org.apache.camel.tracing.ExtractAdapter;

public class OpenTracingExtractAdapter implements TextMap {
    ExtractAdapter adapter;

    OpenTracingExtractAdapter(ExtractAdapter adapter) {
        this.adapter = adapter;
    }

    @Override
    public Iterator> iterator() {
        return this.adapter.iterator();
    }

    @Override
    public void put(String s, String s1) {
        throw new UnsupportedOperationException("OpenTracingExtractAdapter should only be used with Tracer.extract()");
    }
}