/*
 * Copyright 2018 NAVER Corp.
 *
 * 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 com.navercorp.pinpoint.plugin.vertx;

import com.navercorp.pinpoint.bootstrap.plugin.request.util.CookieExtractor;
import com.navercorp.pinpoint.common.util.StringUtils;
import io.netty.handler.codec.http.HttpHeaders;
import io.netty.handler.codec.http.HttpRequest;

/**
 * @author Woonduk Kang(emeroad)
 */
public class VertxCookieExtractor implements CookieExtractor<HttpRequest> {
    @Override
    public String getCookie(HttpRequest httpRequest) {
        final HttpHeaders headers = httpRequest.headers();
        if (headers != null) {
            final String cookie = headers.get("Cookie");
            if (StringUtils.hasLength(cookie)) {
                return cookie;
            }
        }
        return null;
    }
}
