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Camel HTTP support

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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 org.apache.camel.component.http;

import java.util.Optional;

import org.apache.hc.core5.http.Header;
import org.apache.hc.core5.http.HttpResponse;

public final class HttpUtil {
    private HttpUtil() {
    }

    public static Optional responseHeader(HttpResponse response, String headerName) {
        return Optional.ofNullable(response.getFirstHeader(headerName));
    }

    public static Optional responseHeaderValue(HttpResponse response, String headerName) {
        return responseHeader(response, headerName).map(Header::getValue);
    }

    public static String removeHttpOrHttpsProtocol(String uri) {
        if (uri.startsWith("http://")) {
            uri = uri.substring(7);
        } else if (uri.startsWith("http:")) {
            uri = uri.substring(5);
        } else if (uri.startsWith("https://")) {
            uri = uri.substring(8);
        } else if (uri.startsWith("https:")) {
            uri = uri.substring(6);
        }
        return uri;
    }
}