/*
 * 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 io.opentracing.propagation;

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

/**
 * Write only TextMap adapter from a map.
 */
public class TextMapInjectAdapter implements TextMap {

    private final Map<String, String> map;

    public TextMapInjectAdapter(final Map<String, String> map) {
        this.map = map;
    }

    @Override
    public Iterator<Map.Entry<String, String>> iterator() {
        throw new UnsupportedOperationException();
    }

    @Override
    public void put(final String key, final String value) {
        this.map.put(key, value);
    }
}